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php sample source codes
A full graphics class for creating Bar, Line, Area, Pie, and Scientific plots on the fly with PHP3 or PHP4<p> <blockquote> <b>Supports</b>: TTF, multiple graphs per image, </blockquote> Full site at <A HREF="http://www.jeo.net/php/phplot/">http://www.jeo.net/php/phplot/</A> <p> Afan Ottenheimer /* World Coordinates are the XY coordinates relative to the axis origin that can be drawn. Not the device (pixel) coordinates which in GD is relative to the origin at the upper left side of the image. */ //GLOBAL VARIABLES AND FUNCTIONS $color_array = 1; //If this is set to 1 then include small list //If 2 then include large list //If 0 then don't do color name arrays //include("rgb_small.inc.php"); include("rgb.inc.php"); function SetColor($color_asked) { global $ColorArray; if ( count($color_asked) == 3 ) { //already array of 3 rgb $ret_val = $color_asked; } else { // is asking for a color by name $ret_val = $ColorArray[$color_asked]; } return $ret_val; } class PHPlot{ var $image_width = 600; //Total Width in Pixels (world coordinates) var $image_height = 400; //Total Height in Pixels (world coordinates) var $x_left_margin; var $y_top_margin; var $x_right_margin; var $y_bot_margin; var $plot_area = array(5,5,600,400); //Fonts var $use_ttf = 1; //Use TTF fonts (1) or not (0) var $font = "./benjamingothic.ttf"; var $small_ttffont_size = 12; // //non-ttf var $small_font = 2; // fonts = 1,2,3,4 or 5 var $small_font_width = 6.0; // width in pixels var $small_font_height = 10.0; // height in pixels var $title_ttffont = "./benjamingothic.ttf"; var $title_ttffont_size = 14; var $title_angle= 0; //non-ttf var $title_font = "4"; var $title_font_width = 8.0; // width in pixels for non-ttf var $title_font_height = 12.0; // height in pixels for non-ttf var $axis_ttffont = "./benjamingothic.ttf"; var $axis_ttffont_size = 8; var $x_datalabel_angle = 45; var $y_label_angle = 90; //non-ttf var $axis_font = 2; var $axis_font_width = 6.0; // width in pixels for non-ttf var $axis_font_height = 10.0; // height in pixels for non-ttf //Formats var $file_format = "png"; //Plot Colors var $bg_color; var $plot_bg_color; var $grid_color; var $light_grid_color; var $tick_color; var $title_color; var $text_color; var $i_light; //Data var $data_type = "text-linear"; // text-linear, linear-linear-error, linear-linear, log-linear, log-log, linear-text //var $plot_type= "linepoints"; //bars, lines, linepoints, area, dots, pie var $plot_type= "linepoints"; //bars, lines, area, dots, pie var $point_size = 10; var $point_shape = "diamond"; //rect,circle,diamond,triangle,dot,line,halfline var $error_bar_shape = "tee"; //tee, line var $error_bar_size = 5; //right left size of tee var $data_values; var $data_color = array("blue","white",array(0,0,0)); var $data_border_color = array("black"); var $number_x_points; var $plot_min_x; // Max and min of the plot area var $plot_max_x; // Max and min of the plot area var $plot_min_y; // Max and min of the plot area var $plot_max_y; // Max and min of the plot area var $min_y; var $max_y; var $max_x = 10; //Must not be = 0; var $precision = "1"; var $si_units; //Labels var $title_txt = "this is a title"; var $y_label_txt = "Millions"; var $x_label_txt = "years"; var $tick_length = "10"; //pixels var $draw_y_grid = 1; var $num_vert_ticks = ""; var $vert_tick_increment = "1"; //Set num_vert_ticks or vert_tick_increment, not both. var $x_datalabel_maxlength = 20; var $line_width = 2; function SetUseTTF($which_ttf) { $this->use_ttf = $which_ttf; return true; } function SetFileFormat($which_file_format) { //eventually test to see if that is supported - if not then return false $accepted = "jpg,gif,png"; $asked = trim($which_file_format); if (eregi($asked, $accepted)) { $this->file_format = $asked; return true; } else { return false; } } function SetImageArea($which_iw,$which_ih) { $this->image_width = $which_iw; $this->image_height = $which_ih; return true; } //Set up initial image function InitImage() { $this->img = ImageCreate($this->image_width, $this->image_height); $this->SetDefaultColors(); return true; } function SetPrecision($which_prec) { $this->precision = $which_prec; return true; } function SetDefaultColors() { $this->SetPlotBgColor(array(222,222,222)); $this->SetBackgroundColor(array(200,222,222)); //can use rgb values or "name" values $this->SetTextColor("black"); $this->SetGridColor("black"); $this->SetLightGridColor(array(175,175,175)); $this->SetTickColor("black"); $this->SetTitleColor(array(0,0,0)); // Can be array or name $this->i_light = ImageColorAllocate($this->img,194,194,194); $this->i_dark = ImageColorAllocate($this->img,100,100,100); } function PrintImage() { switch($this->file_format) { case "png": Header("Content-type: image/gif"); ImagePng($this->img); break; case "jpg": Header("Content-type: image/gif"); ImageJPEG($this->img); break; case "gif": Header("Content-type: image/gif"); ImageGif($this->img); break; default: echo "Please select an image type!<br>"; break; } ImageDestroy($this->img); return true; } function DrawBackground() { if (($this->img) == "") { $this->InitImage(); } ImageFilledRectangle($this->img, 0, 0, $this->image_width, $this->image_height, $this->bg_color); return true; } function DrawImageBorder() { ImageLine($this->img,0,0,$this->image_width-1,0,$this->i_light); ImageLine($this->img,1,1,$this->image_width-2,1,$this->i_light); ImageLine($this->img,0,0,0,$this->image_height-1,$this->i_light); ImageLine($this->img,1,1,1,$this->image_height-2,$this->i_light); ImageLine($this->img,$this->image_width-1,0,$this->image_width-1,$this->image_height-1,$this->i_dark); ImageLine($this->img,0,$this->image_height-1,$this->image_width-1,$this->image_height-1,$this->i_dark); ImageLine($this->img,$this->image_width-2,1,$this->image_width-2,$this->image_height-2,$this->i_dark); ImageLine($this->img,1,$this->image_height-2,$this->image_width-2,$this->image_height-2,$this->i_dark); return true; } function SetDrawYGrid($which_dyg) { $this->draw_y_grid = $which_dyg; // 1=true or anything else=false } function SetXLabel($xlbl) { $this->x_label_txt = $xlbl; } function SetYLabel($ylbl) { $this->y_label_txt = $ylbl; } function SetTitle($title) { $this->title_txt = $title; } //function SetLabels($xlbl,$ylbl,$title) { // $this->title_txt = $title; // $this->x_label_txt = $xlbl; // $this->y_label_txt = $ylbl; //} function DrawLabels() { $this->DrawTitle(); $this->DrawXLabel(); $this->DrawYLabel(); return true; } function DrawXLabel() { ImageString($this->img, $this->small_font, -($this->small_font_width*strlen($this->x_label_txt)/2.0) + $this->xtr(($this->plot_max_x+$this->plot_min_x)/2.0) , ($this->ytr($this->plot_min_y) + $this->x_label_height/2), $this->x_label_txt, $this->text_color); return true; } function DrawYLabel() { ImageStringUp($this->img, $this->small_font,8, (($this->small_font_width*strlen($this->y_label_txt)/2.0) + $this->ytr(($this->plot_max_y + $this->plot_min_y)/2.0) ), $this->y_label_txt, $this->text_color); return true; } function DrawTitle() { if ($this->use_ttf == 1 ) { $size = $this->TTFBBoxSize($this->title_ttffont_size, $this->title_angle, $this->title_ttffont, $this->title_txt); $xpos = $this->plot_area[0] + ($this->plot_area_width /2 ) - $size[0]/2 ; $ypos = 2 * $size[1]; ImageTTFText($this->img, $this->title_ttffont_size, $this->title_angle, $xpos, $ypos, $this->title_color, $this->title_ttffont, $this->title_txt); //echo "DEBUG: $xpos, $ypos, $this->img, $this->title_ttffont_size, $this->title_angle, $this->title_color, $this->title_ttffont, $this->title_txt<br>"; //exit; } else { ImageString($this->img, $this->title_font, ($this->plot_area[0] + $this->plot_area_width / 2) - (strlen($this->title_txt) * $this->title_font), 2*$this->title_font_height, $this->title_txt, $this->title_color); } return true; } function DrawPlotAreaBackground() { ImageFilledRectangle($this->img,$this->plot_area[0], $this->plot_area[1],$this->plot_area[2],$this->plot_area[3], $this->plot_bg_color); } function SetBackgroundColor($which_color) { if (($this->img) == "") { $this->InitImage(); } list($r, $g, $b) = SetColor($which_color); $this->bg_color=ImageColorAllocate($this->img, $r, $g, $b); return true; } function SetPlotBgColor($which_color) { list($r, $g, $b) = SetColor($which_color); $this->plot_bg_color=ImageColorAllocate($this->img, $r, $g, $b); return true; } function SetTitleColor($which_color) { if (($this->img) == "") { $this->InitImage(); } list($r, $g, $b) = SetColor($which_color); $this->title_color=ImageColorAllocate($this->img, $r, $g, $b); return true; } function SetTickColor ($which_color) { if (($this->img) == "") { $this->InitImage(); } list($r, $g, $b) = SetColor($which_color); $this->tick_color=ImageColorAllocate($this->img, $r, $g, $b); return true; } function SetTextColor ($which_color) { if (($this->img) == "") { $this->InitImage(); } list($r, $g, $b) = SetColor($which_color); $this->text_color=ImageColorAllocate($this->img, $r, $g, $b); return true; } function SetLightGridColor ($which_color) { if (($this->img) == "") { $this->InitImage(); } list($r, $g, $b) = SetColor($which_color); $this->light_grid_color=ImageColorAllocate($this->img, $r, $g, $b); return true; } function SetGridColor ($which_color) { if (($this->img) == "") { $this->InitImage(); } list($r, $g, $b) = SetColor($which_color); $this->grid_color=ImageColorAllocate($this->img, $r, $g, $b); return true; } function SetCharacterHeight() { //to be set return true; } function SetPlotType($which_pt) { $accepted = "bars,lines,linepoints,area,dots,pie"; $asked = trim($which_pt); if (eregi($asked, $accepted)) { $this->plot_type = $which_pt; return true; } else { return false; } } function FindDataLimits() { //bar charts are a bit different than regular graphs. For them what // we have, instead of X values, is # of records equally spaced on data. //Bar and Column chart data is passed in as $data[] = (title,y1,y2,y3,y4,...) //Regular X-Y data is passed in as $data[] = (title,x,y1,y2,y3,y4,...) which you can use for multi-dimentional plots. $this->number_x_points = count($this->data_values); switch ($this->data_type) { case "text-linear": $minx = 0; //valid for BAR CHART TYPE GRAPHS ONLY $maxx = $this->number_x_points - 1 ; //valid for BAR CHART TYPE GRAPHS ONLY $miny = (double) $this->data_values[0][1]; $maxy = $miny; break; default: //Everything else: linear-linear, etc. $maxx = $this->data_values[0][1]; $minx = $maxx; $miny = $this->data_values[0][2]; $maxy = $miny; $maxy = $miny; break; } $max_records_per_group = 0; $total_records = 0; reset($this->data_values); while (list(, $dat) = each($this->data_values)) { //for each X barchart setting //foreach($this->data_values as $dat) //can use foreach only in php4 $tmp = 0; $total_records += count($dat) - 1; // -1 for label switch ($this->data_type) { case "text-linear": //Find the relative Max and Min while (list($key, $val) = each($dat)) { if ($key != 0) { //$dat[0] = label SetType($val,"double"); if ($val > $maxy) { $maxy = $val ; } if ($val < $miny) { $miny = (double) $val ; } } $tmp++; } break; case "linear-linear": //X-Y data is passed in as $data[] = (title,x,y,y2,y3,...) which you can use for multi-dimentional plots. while (list($key, $val) = each($dat)) { if ($key == 1) { //$dat[0] = label SetType($val,"double"); if ($val > $maxx) { $maxx = $val; } elseif ($val < $min) { $minx = $val; } } elseif ($key > 1) { SetType($val,"double"); if ($val > $maxy) { $maxy = $val ; } elseif ($val < $miny) { $miny = $val ; } } $tmp++; } break; case "linear-linear-error": //Assume 2-D for now, can go higher //Regular X-Y data is passed in as $data[] = (title,x,y,error+,error-,y2,error2+,error2-) while (list($key, $val) = each($dat)) { if ($key == 1) { //$dat[0] = label SetType($val,"double"); if ($val > $maxx) { $maxx = $val; } elseif ($val < $min) { $minx = $val; } } elseif ($key%3 == 2) { SetType($val,"double"); if ($val > $maxy) { $maxy = $val ; } elseif ($val < $miny) { $miny = $val ; } } elseif ($key%3 == 0) { SetType($val,"double"); if ($val > $maxe_plus) { $maxe = $val ; } } elseif ($key%3 == 1) { SetType($val,"double"); if ($val > $maxe_minus) { $mine = $val ; } } $tmp++; } $maxy = $maxy + $maxe_plus; $miny = $miny - $maxe_minus; //assume error bars are always > 0 break; default: echo "ERROR: unknown chart type"; break; } if ($tmp > $max_records_per_group) { $max_records_per_group = $tmp; } } $this->min_x = $minx; $this->max_x = $maxx; $this->min_y = $miny; $this->max_y = $maxy; if ($max_records_per_group > 1) { $this->records_per_group = $max_records_per_group - 1; } else { $this->records_per_group = 1; } //$this->data_count = $total_records ; } function SetMargins() { ///////////////////////////////////////////////////////////////// // When the image is first created - set the margins // to be the standard viewport. // The standard viewport is the full area of the view surface (or panel), // less a margin of 4 character heights all round for labelling. // It thus depends on the current character size, set by SetCharacterHeight(). ///////////////////////////////////////////////////////////////// //echo "SMargins:<br>"; if ($this->use_ttf == 1) { $title_size = $this->TTFBBoxSize($this->title_ttffont_size, $this->title_angle, $this->title_ttffont, "X"); //An array $this->y_top_margin = ($title_size[1] * 4); $this->y_bot_margin = $this->x_label_height ; $this->x_left_margin = $this->y_label_width * 2 + $this->tick_length; $this->x_right_margin = 33.0; /* distance between right and end of x axis in pixels */ } else { $title_size = array($this->title_font_width * strlen($this->plot_title),$this->title_font_height); //$this->y_top_margin = ($title_size[1] * 4); $this->y_top_margin = $title_size[1] * 4; $this->y_bot_margin = 66.0; /* Must be integer */ $this->x_left_margin = 77.0; /* distance between left and start of x axis in pixels */ $this->x_right_margin = 33.0; /* distance between right and end of x axis in pixels */ } //echo "$this->x_label_height<br>"; //echo "$this->x_left_margin<br>"; //exit; $this->x_tot_margin = $this->x_left_margin + $this->x_right_margin; $this->y_tot_margin = $this->y_left_margin + $this->y_right_margin; if ($this->plot_max_x && $this->plot_max_y && $this->plot_area_width ) { //If data has already been analysed then set translation $this->SetTranslation(); } } /* function SetNewPlotAreaPixels($x1,$y1,$x2,$y2) { //Like in GD 0,0 is upper left set via pixel Coordinates $this->plot_area = array($x1,$y1,$x2,$y2); $this->plot_area_width = $this->plot_area[2] - $this->plot_area[0]; $this->plot_area_height = $this->plot_area[3] - $this->plot_area[1]; if ($this->plot_max_x) { $this->SetTranslation(); } return true; } */ function SetPlotAreaPixels($x1,$y1,$x2,$y2) { //Like in GD 0,0 is upper left if (!$this->x_tot_margin) { //echo "SPAP<br>"; $this->SetMargins(); } if ($x2 && $y2) { $this->plot_area = array($x1,$y1,$x2,$y2); } else { $this->plot_area = array($this->x_left_margin, $this->y_top_margin, $this->image_width - $this->x_right_margin, $this->image_height - $this->y_bot_margin ); } $this->plot_area_width = $this->plot_area[2] - $this->plot_area[0]; $this->plot_area_height = $this->plot_area[3] - $this->plot_area[1]; //echo "SPAP: $this->x_left_margin, $this->y_top_margin,$this->y_bot_margin,$this->x_right_margin<br>"; //echo "SPAP: $this->plot_area[0], $this->plot_area[1],$this->plot_area[2],$this->plot_area[3]<br>"; //exit; return true; } function SetPlotAreaWorld($xmin,$ymin,$xmax,$ymax) { if (($xmin == "") && ($xmax == "")) { //For automatic setting of data we need $this->max_x if (!$this->max_y) { $this->FindDataLimits() ; } if ($this->data_type == "text-linear") { //labels for text-linear is done at data drawing time for speed. $xmax = $this->max_x + 1 ; //valid for BAR CHART TYPE GRAPHS ONLY $xmin = 0 ; //valid for BAR CHART TYPE GRAPHS ONLY } else { $xmax = $this->max_x * 1.02; $xmin = $this->min_x; } $ymax = ceil($this->max_y * 1.2); if ($this->min_y < 0) { $ymin = floor($this->min_y * 1.2); } else { $ymin = 0; } } $this->plot_min_x = $xmin; $this->plot_max_x = $xmax; if ($ymin == $ymax) { $ymax += 1; } $this->plot_min_y = $ymin; $this->plot_max_y = $ymax; //echo "$xmin, $xmax, $ymin, $ymax<br>"; //echo "$this->plot_min_x, $this->plot_max_x, $this->plot_min_y, $this->plot_max_y"; //exit; if ($ymax <= $ymin) { $this->DrawError("Error in Data - max not gt min"); } //Set the boundaries of the box for plotting in world coord // if (!$this->x_tot_margin) { //We need to know the margins before we can calculate scale // $this->SetMargins(); // } //For this we have to reset the scale if ($this->plot_area_width) { $this->SetTranslation(); } return true; } function DrawError($error_message) { $ypos = $this->image_height/2; if ($this->use_ttf == 1) { ImageTTFText($this->img, $this->small_ttffont_size, 0, $xpos, $ypos, ImageColorAllocate($this->img,0,0,0), $this->axis_ttffont, $error_message); } else { ImageString($this->img, $this->small_font,1,$ypos,$error_message, ImageColorAllocate($this->img,0,0,0)); } return true; } function TTFBBoxSize($size, $angle, $font, $string) { //Assume angle < 90 $arr = ImageTTFBBox($size, 0, $font, $string); $flat_width = $arr[0] - $arr[2]; $flat_height = abs($arr[3] - $arr[5]); // for 90deg: // $height = $arr[5] - $arr[7]; // $width = $arr[2] - $arr[4]; $width = ceil(abs($flat_width*cos($angle) + $flat_height*sin($angle))); //Must be integer $height = ceil(abs($flat_width*sin($angle) + $flat_height*cos($angle))); //Must be integer return array($width, $height); } function SetXLabelHeight() { if ($this->use_ttf == 1) { //Space for the X Label $size = $this->TTFBBoxSize($this->axis_ttffont_size, 0, $this->axis_ttffont, $this->x_label_txt); $tmp = $size[1]; //$string = Str_Repeat("m", $this->x_datalabel_maxlength); while ($i < $this->x_datalabel_maxlength) { $string .= "w"; $i++; } //Space for the axis labels $size = $this->TTFBBoxSize($this->axis_ttffont_size, $this->x_datalabel_angle, $this->axis_ttffont, $string); $this->x_label_height = 2*$tmp + $size[1]; //echo "$tmp, $size[1]<br>"; //exit; } else { $this->x_label_height = 4 * $this->small_font_height; } //echo "SXLH<br>"; $this->SetMargins(); return true; } function SetYLabelWidth() { //$ylab = sprintf("%6.1f %s",$i,$si_units[0]); //use for PHP2 compatibility //the "." is for space. It isn't actually printed $ylab = number_format($this->max_y, $this->precision, ".", ",") . $this->si_units . "."; if ($this->use_ttf == 1) { $size = $this->TTFBBoxSize($this->axis_ttffont_size, 0, $this->axis_ttffont, $ylab); } else { $size[0] = StrLen($ylab) * $this->small_font_width * .75; } $this->y_label_width = $size[0] * 2; //echo "SYLW: $this->y_label_width<br>"; //exit; $this->SetMargins(); return true; } function SetEqualXCoord() { //for plots that have equally spaced x variables and multiple bars per x-point. $space = ($this->plot_area[2] - $this->plot_area[0]) / ($this->number_x_points * 4); $group_width = $space * 3; $bar_width = $group_width / $this->records_per_group; //I think that eventually this space variable will be replaced by just graphing x. $this->data_group_space = $space; $this->record_bar_width = $bar_width; return true; } function SetErrorBarSize($which_ebs) { //in pixels $this->error_bar_size = $which_ebs; return true; } function SetErrorBarShape($which_ebs) { //in pixels $this->error_bar_shape = $which_ebs; return true; } function SetPointShape($which_pt) { //in pixels $this->point_shape = $which_pt; return true; } function SetPointSize($which_ps) { //in pixels SetType($which_ps,"integer"); $this->point_size = $which_ps; if ($this->point_shape == "diamond" or $this->point_shape == "triangle") { if ($this->point_size % 2 != 0) { $this->point_size++; } } return true; } function SetDataType($which_dt) { $this->data_type = $which_dt; //text-linear, linear-linear, linear-linear-error return true; } function SetDataValues($which_dv) { $this->data_values = $which_dv; //echo $this->data_values return true; } function SetDataColors($which_data,$which_border) { //Set the data to be displayed in a particular color if ($this->img == "") { $this->InitImage(); } if (!$which_data) { $which_data = array("blue","bisque",array(0,176,0)); $which_border = array("black"); } $this->data_color = $which_data; //an array $this->border_color = $which_border; //an array //foreach($this->data_color as $col) { reset($this->data_color); //data_color can be an array of colors, one for each thing plotted while (list(, $col) = each($this->data_color)) { list($r, $g, $b) = SetColor($col); $this->col_data_color[] = ImageColorAllocate($this->img, $r, $g, $b); } // border_color //If we are also going to put a border on the data (bars, dots, area, ...) // then lets also set a border color as well. //foreach($this->data_border_color as $col) { reset($this->data_border_color); while (list(, $col) = each($this->data_border_color)) { list($r, $g, $b) = SetColor($col); $this->col_data_border_color[] = ImageColorAllocate($this->img, $r, $g, $b); } return true; } function DrawPlotBorder() { //ImageRectangle($this->img, $this->xtr($this->plot_min_x),$this->ytr($this->plot_min_y), // $this->xtr($this->plot_max_x),$this->ytr($this->plot_max_y),$this->grid_color); ImageRectangle($this->img, $this->plot_area[0],$this->ytr($this->plot_min_y), $this->plot_area[2],$this->ytr($this->plot_max_y),$this->grid_color); $this->DrawVerticalTicks(); $this->DrawXAxis(); return true; } function SetHorizTickIncrement($which_ti) { //Use either this or NumVertTicks to set where to place x tick marks if ($which_ti) { $this->horiz_tick_increment = $which_ti; //world coordinates } else { if (!$this->max_x) { $this->FindDataLimits(); //Get maxima and minima for scaling } //$this->horiz_tick_increment = ( ceil($this->max_x * 1.2) - floor($this->min_x * 1.2) )/10; $this->horiz_tick_increment = ($this->plot_max_x - $this->plot_min_x )/10; } $this->num_horiz_ticks = ""; //either use num_vert_ticks or vert_tick_increment, not both return true; } function SetVertTickIncrement($which_ti) { //Use either this or NumVertTicks to set where to place y tick marks if ($which_ti) { $this->vert_tick_increment = $which_ti; //world coordinates } else { if (!$this->max_y) { $this->FindDataLimits(); //Get maxima and minima for scaling } //$this->vert_tick_increment = ( ceil($this->max_y * 1.2) - floor($this->min_y * 1.2) )/10; $this->vert_tick_increment = ($this->plot_max_y - $this->plot_min_y )/10; } $this->num_vert_ticks = ""; //either use num_vert_ticks or vert_tick_increment, not both return true; } function SetNumVertTicks($which_nt) { $this->num_vert_ticks = $which_nt; $this->vert_tick_increment = ""; //either use num_vert_ticks or vert_tick_increment, not both return true; } function SetTickLength($which_tl) { $this->tick_length = $which_tl; return true; } function DrawXAxis() { //Draw X Axis at Y=0 ImageLine($this->img,(-$this->tick_length+$this->plot_area[0]), $this->ytr(0),$this->xtr(1),$this->ytr(0),$this->tick_color); ImageLine($this->img,$this->plot_area[0]+1,$this->ytr(0), $this->xtr($this->plot_max_x)-1,$this->ytr(0),$this->tick_color); ImageLine($this->img,($this->xtr($this->plot_max_x)+$this->tick_length), $this->ytr(0),$this->xtr($this->plot_max_x-1),$this->ytr(0),$this->grid_color); //Y Axis Label $ylab = number_format(0,$this->precision,".",",") . "$this->si_units"; ImageString($this->img, $this->small_font,($this->plot_area[0] - $this->y_label_width - $this->tick_length/2), ( -($this->small_font_height/2.0) + $this->ytr(0)),$ylab, $this->text_color); //X Ticks and Labels if ($this->data_type != "text-linear") { //labels for text-linear is done at data drawing time for speed. $this->DrawHorizontalTicks(); } return true; } function DrawHorizontalTicks() { //Ticks and lables are drawn on the left border of PlotArea. //Left Bottom ImageLine($this->img,$this->plot_area[0], $this->plot_area[3]+$this->tick_length, $this->plot_area[0],$this->plot_area[3],$this->tick_color); //$xlab = number_format($this->plot_min_x,$this->precision,".",",") . "$this->si_units"; ImageString($this->img, $this->small_font,($this->plot_area[0] - $this->small_font_width*strlen($xlab)/2 ), ( $this->small_font_height + $this->plot_area[3]),$xlab, $this->text_color); //Top if ($this->horiz_tick_increment) { $delta_x = $this->horiz_tick_increment; } elseif ($this->num_horiz_ticks) { $delta_x = ($this->plot_max_x - $this->plot_min_x) / $this->num_horiz_ticks; } else { $delta_x =($this->plot_max_x - $this->plot_min_x) / 10 ; } $i = 0; $x_tmp = $this->plot_min_x; SetType($x_tmp,"double"); while ($x_tmp <= $this->plot_max_x){ //$xlab = sprintf("%6.1f %s",$min_x,$si_units[0]); //PHP2 past compatibility $xlab = number_format($x_tmp,$this->precision,".",",") . "$this->si_units"; $x_pixels = $this->xtr($x_tmp); //Bottom Tick ImageLine($this->img,$x_pixels,$this->plot_area[3] + $this->tick_length, $x_pixels,$this->plot_area[3], $this->tick_color); //Top Tick //ImageLine($this->img,($this->xtr($this->plot_max_x)+$this->tick_length), // $y_pixels,$this->xtr($this->plot_max_x)-1,$y_pixels,$this->tick_color); if ($this->draw_x_grid == 1) { ImageLine($this->img,$x_pixels,$this->plot_area[1] + $this->tick_length, $x_pixels,$this_plot_area[3], $this->light_grid_color); } ImageString($this->img, $this->small_font,($x_pixels - $this->small_font_width*strlen($xlab)/2) , ( $this->small_font_height + $this->plot_area[3]),$xlab, $this->text_color); $i++; $x_tmp += $delta_x; } } function DrawVerticalTicks() { //Ticks and lables are drawn on the left border of PlotArea. //Left Bottom //ImageLine($this->img,(-$this->tick_length+$this->xtr($this->plot_min_x)), // $this->ytr($this->plot_min_y),$this->xtr(1),$this->ytr($this->plot_min_y),$this->tick_color); ImageLine($this->img,(-$this->tick_length+$this->plot_area[0]), $this->plot_area[1],$this->xtr(1),$this->plot_area[1],$this->tick_color); $ylab = number_format($this->plot_min_y,$this->precision,".",",") . "$this->si_units"; ImageString($this->img, $this->small_font,($this->plot_area[0] - $this->y_label_width - $this->tick_length/2), ( -($this->small_font_height/2.0) + $this->ytr($this->plot_min_y)),$ylab, $this->text_color); //Right Bottom ImageLine($this->img,($this->xtr($this->plot_max_x)+$this->tick_length), $this->ytr($this->plot_min_y),$this->xtr($this->plot_max_x), $this->ytr($this->plot_min_y),$this->tick_color); //Bottom ImageLine($this->img,$this->xtr($this->plot_min_x)+1,$this->ytr($this->plot_min_y), $this->xtr($this->plot_max_x),$this->ytr($this->plot_min_y),$this->light_grid_color); //Left Top //ImageLine($this->img,(-$this->tick_length+$this->xtr($this->plot_min_x)), // $this->ytr($this->plot_max_y),$this->xtr(1),$this->ytr($this->plot_max_y),$this->tick_color); //$ylab = number_format($this->plot_max_y,$this->precision,".",",") . "$this->si_units"; //ImageString($this->img, $this->small_font,($this->plot_area[0] - $this->y_label_width - $this->tick_length/2), // ( -($this->small_font_height/2.0) + $this->ytr($this->plot_max_y)),$ylab, $this->text_color); //Right Top //ImageLine($this->img,($this->xtr($this->plot_max_x)+$this->tick_length), // $this->ytr($this->plot_max_y),$this->xtr($this->plot_max_x-1),$this->ytr($this->plot_max_y),$this->tick_color); //Top //ImageLine($this->img,$this->xtr($this->plot_min_x)+1,$this->ytr($this->plot_max_y), // $this->xtr($this->plot_max_x)-1,$this->ytr($this->plot_max_y),$this->light_grid_color); ImageLine($this->img,$this->plot_area[0]+1,$this->ytr($this->plot_max_y), $this->xtr($this->plot_max_x)-1,$this->ytr($this->plot_max_y),$this->light_grid_color); /* maxy is always > miny so delta_y is always positive */ if ($this->vert_tick_increment) { $delta_y = $this->vert_tick_increment; } elseif ($this->num_vert_ticks) { $delta_y = ($this->plot_max_y - $this->plot_min_y) / $this->num_vert_ticks; } else { $delta_y =($this->plot_max_y - $this->plot_min_y) / 10 ; } $i = 0; $y_tmp = $this->plot_min_y; SetType($y_tmp,"double"); while ($y_tmp <= $this->plot_max_y){ //$ylab = sprintf("%6.1f %s",$min_y,$si_units[0]); //PHP2 past compatibility $ylab = number_format($y_tmp,$this->precision,".",",") . "$this->si_units"; $y_pixels = $this->ytr($y_tmp); //ImageLine($this->img,(-$this->tick_length+$this->xtr($this->plot_min_x)), ImageLine($this->img,(-$this->tick_length+$this->plot_area[0]), $y_pixels,$this->plot_area[0], $y_pixels, $this->tick_color); ImageLine($this->img,($this->xtr($this->plot_max_x)+$this->tick_length), $y_pixels,$this->plot_area[2], $y_pixels,$this->tick_color); // gdStyled only supported with GD v3 //ImageLine($this->img,$this->xtr($this->plot_min_x),$this->ytr($y_tmp),$this->xtr($this->plot_max_x),$this->ytr($y_tmp),gdStyled); if ($this->draw_y_grid == 1) { ImageLine($this->img,$this->xtr($this->plot_min_x),$y_pixels, $this->xtr($this->plot_max_x),$y_pixels,$this->light_grid_color); } ImageString($this->img, $this->small_font,($this->plot_area[0] - $this->y_label_width - $this->tick_length/2), ( -($this->small_font_height/2.0) + $y_pixels),$ylab, $this->text_color); $i++; $y_tmp += $delta_y; } //echo "$this->plot_min_x, $this->plot_max_x, $this->plot_min_y, $this->plot_max_y"; //exit; return true; } function SetTranslation() { $this->xscale = ($this->plot_area_width)/($this->plot_max_x - $this->plot_min_x); $this->yscale = ($this->plot_area_height)/($this->plot_max_y - $this->plot_min_y); //echo "$this->xscale = ($this->plot_area_width)/($this->plot_max_x - $this->plot_min_x)<br>"; //echo "$this->yscale = ($this->plot_area_height)/($this->plot_max_y - $this->plot_min_y)<br>"; //$this->xscale = ($this->image_width - $this->x_tot_margin)/($this->plot_max_x - $this->plot_min_x); //$this->yscale = ($this->image_height - $this->y_tot_margin)/($this->plot_max_y - $this->plot_min_y); $this->plot_origin_x = $this->plot_area[0] - ($this->xscale * $this->plot_min_x ); //- becuase GD defines x=0 at left $this->plot_origin_y = $this->plot_area[3] + ($this->yscale * $this->plot_min_y); //+ becuase GD defines y=0 at top //echo "DEBUG ST: $this->plot_origin_y , $this->plot_area_height , $this->yscale<br>"; //echo "DEBUG ST: $this->plot_origin_x , {$this->plot_area[0]} , $this->xscale<br>"; //exit; } function xtr($x_world) { //Translate world coordinates into pixel coordinates //The pixel coordinates are those of the ENTIRE image, not just the plot_area //$x_pixels = $this->x_left_margin + ($this->image_width - $this->x_tot_margin)*(($x_world - $this->plot_min_x) / ($this->plot_max_x - $this->plot_min_x)) ; //which with a little bit of math reduces to ... $x_pixels = $this->plot_origin_x + $x_world * $this->xscale ; return($x_pixels); } function ytr($y_world) { // translate y world coord into pixel coord //$yscale = ($image_height - $y_tot_margin)/($maxy-$miny); /* Maximum Height in Screen Units */ //$y_pixels = ($this->plot_max_y - $y_world) * $this->yscale + $this->y_top_margin ; $y_pixels = $this->plot_origin_y - $y_world * $this->yscale ; //minus because GD defines y=0 at top. doh! //echo "DEBUG: $this->plot_origin_y , $y_world , $this->yscale<br>"; //exit; return ($y_pixels); } function DrawDataLabel($lab,$x_world,$y_world) { //Data comes in in WORLD coordinates //Draw data label near actual data point if ($this->use_ttf) { $lab_size = $this->TTFBBoxSize($this->axis_ttffont_size, $this->x_datalabel_angle, $this->axis_ttffont, $lab); //An array $y = $this->ytr($y_world) - $lab_size[1] ; //in pixels $x = $this->xtr($x_world) - $lab_size[0]/2; ImageTTFText($this->img, $this->axis_ttffont_size, $this->x_datalabel_angle, $x, $y, $this->text_color, $this->axis_ttffont, $lab); } else { $lab_size = array($this->small_font_width*StrLen($lab), $this->small_font_height*3); $y = $this->ytr($y_world) - $this->small_font_height; //in pixels $x = $this->ytr($x_world) - ($this->small_font_width*StrLen($lab))/2; ImageString($this->img, $this->small_font,$x, $y ,$lab, $this->axis_font); } } function DrawXDataLabel($xlab,$xpos) { //xpos comes in in PIXELS not in world coordinates. //Draw an x data label centered at xlab if ($this->use_ttf) { $xlab_size = $this->TTFBBoxSize($this->axis_ttffont_size, $this->x_datalabel_angle, $this->axis_ttffont, $xlab); //An array $y = $this->plot_area[3] + $xlab_size[1] + 2; //in pixels $x = $xpos - $xlab_size[0]/2; ImageTTFText($this->img, $this->axis_ttffont_size, $this->x_datalabel_angle, $x, $y, $this->text_color, $this->axis_ttffont, $xlab); } else { $xlab_size = array($this->small_font_width*StrLen($xlab), $this->small_font_height*3); $y = $this->plot_area[3] + $this->small_font_height*1; //in pixels $x = $xpos - ($this->small_font_width*StrLen($xlab))/2; ImageString($this->img, $this->small_font,$x, $y ,$xlab, $this->axis_font); } } function DrawPieChart() { //$pi = "3.14159265358979323846"; $xpos = $this->plot_area[0] + $this->plot_area_width/2; $ypos = $this->plot_area[1] + $this->plot_area_height/2; $diameter = (min($this->plot_area_width, $this->plot_area_height)) ; $radius = $diameter/2; ImageArc($this->img, $xpos, $ypos, $diameter, $diameter, 0, 360, $this->grid_color); //foreach ... reset($this->data_values); while (list(, $row) = each($this->data_values)) { //Get sum of each type $color_index = 0; $i = 0; //foreach ($row as $v) { while (list($k, $v) = each($row)) { if ($k != 0) { $sumarr[$i] += $v; } $i++; } } $total = 0; $i=1; //i=0 is for the title, not counted in sum. reset($sumarr); while (list(, $row) = each($sumarr)) { $sumarr[$i] = abs($sumarr[$i]); // NOTE! You have to have the sum > 0 to make pie charts $total += $sumarr[$i]; $i++; } //echo "$i, $sumarr[0], $sumarr[1], $sumarr[2], $sumarr[3], $sumarr[4], $total<br>"; $color_index = 0; $start_angle = 0; //foreach($sumarr as $val) reset($sumarr); while (list(, $val) = each($sumarr)) { if ($color_index >= count($this->data_color)) $color_index=0; //data_color = array $label_txt = number_format(($val / $total * 100), $this->precision, ".", ",") . "%"; $val = 360 * ($val / $total); $end_angle += $val; $mid_angle = $end_angle - ($val / 2); $slicecol = $this->col_data_color[$color_index]; //Need this again for FillToBorder ImageArc($this->img, $xpos, $ypos, $diameter, $diameter, 0, 360, $this->grid_color); $out_x = $radius * cos(deg2rad($end_angle)); $out_y = - $radius * sin(deg2rad($end_angle)); $halfradius = $radius / 2; $label_x = $xpos + ($halfradius * cos(deg2rad($mid_angle))); $label_y = $ypos + (- $halfradius * sin(deg2rad($mid_angle))); $out_x = $xpos + $out_x; $out_y = $ypos + $out_y; ImageLine($this->img, $xpos, $ypos, $out_x, $out_y, $this->grid_color); //ImageLine($this->img, $xpos, $ypos, $label_x, $label_y, $this->grid_color); ImageFillToBorder($this->img, $label_x, $label_y, $this->grid_color, $slicecol); if ($this->use_ttf) { ImageTTFText($this->img, $this->axis_ttffont_size, 0, $label_x, $label_y, $this->grid_color, $this->axis_ttffont, $label_txt); } else { ImageString($this->img, $this->small_font, $label_x, $label_y, $label_txt, $this->grid_color); } $start_angle = $val; $color_index++; } } function DrawLinesError() { //Draw Lines with Error Bars - data comes in as array("title",x,y,error+,error-,y2,error2+,error2-,...); $start_lines = 0; reset($this->data_values); while (list(, $row) = each($this->data_values)) { $color_index = 0; $i = 0; while (list($key, $val) = each($row)) { //echo "$key, $i, $val<br>"; if ($key == 0) { $lab = $val; } elseif ($key == 1) { $x_now = $val; $x_now_pixels = $this->xtr($x_now); //Use a bit more memory to save 2N operations. } elseif ($key%3 == 2) { $y_now = $val; $y_now_pixels = $this->ytr($y_now); //Draw Data Label if ( $this->draw_data_labels == 1) { $this->DrawDataLabel($lab,$x_now,$y_now); } if ($color_index >= count($this->data_color)) $color_index=0; $barcol = $this->col_data_color[$color_index]; //echo "start = $start_lines<br>"; if ($start_lines == 1) { for ($width = 0; $width < $this->line_width; $width++) { ImageLine($this->img, $x_now_pixels, $y_now_pixels + $width, $lastx[$i], $lasty[$i] + $width, $barcol); } } $lastx[$i] = $x_now_pixels; $lasty[$i] = $y_now_pixels; $color_index++; $i++; $start_lines = 1; } elseif ($key%3 == 0) { $this->DrawYErrorBar($x_now,$y_now,$val,$this->error_bar_shape,$barcol); } elseif ($key%3 == 1) { $mine = $val ; $this->DrawYErrorBar($x_now,$y_now,-$val,$this->error_bar_shape,$barcol); } } } } function DrawDotsError() { //Draw Dots - data comes in as array("title",x,y,error+,error-,y2,error2+,error2-,...); reset($this->data_values); while (list(, $row) = each($this->data_values)) { $color_index = 0; //foreach ($row as $v) { while (list($key, $val) = each($row)) { if ($key == 0) { } elseif ($key == 1) { $xpos = $val; //$xtmp = $val; //echo "$val, $xpos, $ypos, <br>"; } elseif ($key%3 == 2) { if ($color_index >= count($this->data_color)) $color_index=0; $barcol = $this->col_data_color[$color_index]; $ypos = $val; //$ytmp = $val; //echo "two: $val, $xpos, $ypos, <br>"; $color_index++; $this->DrawDot($xpos,$ypos,$this->point_shape,$barcol); } elseif ($key%3 == 0) { $this->DrawYErrorBar($xpos,$ypos,$val,$this->error_bar_shape,$barcol); //echo "three: $val, $xpos, $ypos, $xtmp, $ytmp<br>"; } elseif ($key%3 == 1) { $mine = $val ; $this->DrawYErrorBar($xpos,$ypos,-$val,$this->error_bar_shape,$barcol); } } } } function DrawDots() { //Draw Dots - data comes in as array("title",x,y1,y2,y3,...); reset($this->data_values); while (list(, $row) = each($this->data_values)) { $color_index = 0; //foreach ($row as $v) { while (list($k, $v) = each($row)) { if ($k == 0) { } elseif ($k == 1) { $xpos = $v; } else { if ($color_index >= count($this->data_color)) $color_index=0; $barcol = $this->col_data_color[$color_index]; $this->DrawDot($xpos,$v,$this->point_shape,$barcol); $color_index++; } } } } function DrawDotSeries() { //foreach ($this->data_values as $row) { reset($this->data_values); while (list($j, $row) = each($this->data_values)) { $color_index = 0; //foreach ($row as $v) { while (list($k, $v) = each($row)) { if ($k != 0) { if ($color_index >= count($this->data_color)) $color_index=0; $barcol = $this->col_data_color[$color_index]; $this->DrawDot($j+.5,$v,$this->point_shape,$barcol); $color_index++; } } } } function DrawYErrorBar($x_world,$y_world,$error_height,$error_bar_type,$color) { $x1 = $this->xtr($x_world); $y1 = $this->ytr($y_world); $y2 = $this->ytr($y_world+$error_height) ; for ($width = 0; $width < $this->line_width; $width++) { ImageLine($this->img, $x1+$width, $y1 , $x1+$width, $y2, $color); ImageLine($this->img, $x1-$width, $y1 , $x1-$width, $y2, $color); } switch ($error_bar_type) { case "line": break; case "tee": ImageLine($this->img, $x1-$this->error_bar_size, $y2, $x1+$this->error_bar_size, $y2, $color); break; default: ImageLine($this->img, $x1-$this->error_bar_size, $y2, $x1+$this->error_bar_size, $y2, $color); break; } return true; } function DrawDot($x_world,$y_world,$dot_type,$color) { $half_point = $this->point_size / 2; $x1 = $this->xtr($x_world) - $half_point; $x2 = $this->xtr($x_world) + $half_point; $y1 = $this->ytr($y_world) - $half_point; $y2 = $this->ytr($y_world) + $half_point; switch ($dot_type) { case "halfline": ImageFilledRectangle($this->img, $x1, $this->ytr($y_world), $this->xtr($x_world), $this->ytr($y_world), $color); break; case "line": ImageFilledRectangle($this->img, $x1, $this->ytr($y_world), $x2, $this->ytr($y_world), $color); break; case "rect": ImageFilledRectangle($this->img, $x1, $y1, $x2, $y2, $color); break; case "circle": ImageArc($this->img, $x1 + $half_point, $y1 + $half_point, $this->point_size, $this->point_size, 0, 360, $color); break; case "dot": ImageArc($this->img, $x1 + $half_point, $y1 + $half_point, $this->point_size, $this->point_size, 0, 360, $color); ImageFillToBorder($this->img, $x1 + $half_point, $y1 + $half_point, $color, $color); break; case "diamond": $arrpoints = array( $x1,$y1 + $half_point, $x1 + $half_point, $y1, $x2,$y1 + $half_point, $x1 + $half_point, $y2 ); ImageFilledPolygon($this->img, $arrpoints, 4, $color); break; case "triangle": $arrpoints = array( $x1, $y1 + $half_point, $x2, $y1 + $half_point, $x1 + $half_point, $y2 ); ImageFilledPolygon($this->img, $arrpoints, 3, $color); break; default: ImageFilledRectangle($this->img, $x1, $y1, $x2, $y2, $color); break; } return true; } function SetLineWidth($which_lt) { $this->line_width = $which_lt; return true; } function DrawAreaSeries() { //Set first and last datapoints of area $i = 0; while ($i < $this->records_per_group) { $posarr[$i][] = $this->xtr(.5); //x initial $posarr[$i][] = $this->ytr(0); //y initial $i++; } reset($this->data_values); while (list($j, $row) = each($this->data_values)) { $color_index = 0; //foreach ($row as $v) while (list($k, $v) = each($row)) { if ($k == 0) { //Draw Data Labels $xlab = SubStr($v,0,$this->x_datalabel_maxlength); $this->DrawXDataLabel($xlab,$this->xtr($j + .5)); } else { // Create Array of points for later $x = round($this->xtr($j + .5 )); $y = round($this->ytr($v)); $posarr[$color_index][] = $x; $posarr[$color_index][] = $y; $color_index++; } } } //Final_points for ($i = 0; $i < $this->records_per_group; $i++) { $posarr[$i][] = round($this->xtr($this->max_x + .5)); //x final $posarr[$i][] = $this->ytr(0); //y final } $color_index=0; //foreach($posarr as $row) { reset($posarr); while (list(, $row) = each($posarr)) { if ($color_index >= count($this->data_color)) $color_index=0; $barcol = $this->col_data_color[$color_index]; //echo "$row[0],$row[1],$row[2],$row[3],$row[4],$row[5],$row[6],$row[7],$row[8],$row[9],$row[10],$row[11],$row[12], $barcol<br>"; ImageFilledPolygon($this->img, $row, (count($row)) / 2, $barcol); $color_index++; } //exit; } function DrawLines() { //Data comes in as $data[]=("title",x,y,...); $start_lines = 0; //foreach ($this->data_values as $row) reset($this->data_values); while (list($j, $row) = each($this->data_values)) { $color_index = 0; $i = 0; //foreach ($row as $v) while (list($k, $v) = each($row)) { if ($k == 0) { if ( $this->draw_x_data_labels == 1) { $xlab = SubStr($v,0,$this->x_datalabel_maxlength); $this->DrawXDataLabel($xlab,$this->xtr($row[1])); } } elseif ($k == 1) { $x_now = $this->xtr($v); } else { // Draw Lines $y_now = $this->ytr($v); if ($color_index >= count($this->data_color)) $color_index=0; $barcol = $this->col_data_color[$color_index]; if ($start_lines == 1) { for ($width = 0; $width < $this->line_width; $width++) { ImageLine($this->img, $x_now, $y_now + $width, $lastx[$i], $lasty[$i] + $width, $barcol); //ImageLine($this->img, $x_now, $y_now + $width, $x2, $lasty[$i] + $width, $barcol); } } $bordercol = $this->col_bar_border_color[$colbarcount]; $lastx[$i] = $x_now; $lasty[$i] = $y_now; $color_index++; $i++; } } $start_lines = 1; } } //Data comes in as $data[]=("title",x,y,e+,e-,y2,e2+,e2-,...); function DrawLineSeries() { //Like DrawBars - but use lines. Data comes in as $data[]=("title",y1,y2,y3,...); $start_lines = 0; $lastx[0] = 0; $lasty[0] = 0; //foreach ($this->data_values as $row) { reset($this->data_values); while (list($j, $row) = each($this->data_values)) { $color_index = 0; $i = 0; //foreach ($row as $v) { while (list($k, $v) = each($row)) { if ($k == 0) { //Draw Data Labels $xlab = SubStr($v,0,$this->x_datalabel_maxlength); $this->DrawXDataLabel($xlab,$this->xtr($j + .5)); } else { // Draw Lines $x1 = $this->xtr($j + .5 ); $x2 = $this->xtr($j - .5); $y1 = $this->ytr($v); if ($color_index >= count($this->data_color)) $color_index=0; $barcol = $this->col_data_color[$color_index]; if ($start_lines == 1) { for ($width = 0; $width < $this->line_width; $width++) { //ImageLine($this->img, $x1, $y1 + $width, $lastx[$i], $lasty[$i] + $width, $barcol); ImageLine($this->img, $x1, $y1 + $width, $x2, $lasty[$i] + $width, $barcol); } } $bordercol = $this->col_bar_border_color[$colbarcount]; $lastx[$i] = $x1; $lasty[$i] = $y1; $color_index++; $i++; } } $start_lines = 1; } //exit; } function DrawBars() { $start_pos = $this->plot_area[0] + $this->data_group_space / 2; $xadjust = ($this->records_per_group * $this->data_group_space )/2; //foreach ($this->data_values as $row) { reset($this->data_values); while (list(, $row) = each($this->data_values)) { $color_index = 0; $colbarcount = 0; //foreach ($row as $v) { while (list($k, $v) = each($row)) { if ($k == 0) { //Draw Data Labels $xlab = SubStr($v,0,$this->x_datalabel_maxlength); $this->DrawXDataLabel($xlab,($start_pos + $xadjust)); } else { // Draw Bars ($v) $x1 = $start_pos; $x2 = $start_pos + $this->record_bar_width; if ($v < 0) { $y1 = $this->ytr(0); $y2 = $this->ytr($v); } else { $y1 = $this->ytr($v); $y2 = $this->ytr(0); } if ($color_index >= count($this->data_color)) $color_index=0; if ($colbarcount >= count($this->bar_border_color)) $colbarcount=0; $barcol = $this->col_data_color[$color_index]; $bordercol = $this->col_bar_border_color[$colbarcount]; if ($this->shading == 1) { //Shading set in SetDefaultColors ImageFilledRectangle($this->img, $x1+1, $y1-1, $x2+1, $y2-1, $this->i_light); ImageFilledRectangle($this->img, $x1+2, $y1-2, $x2+2, $y2-2, $this->i_light); } ImageFilledRectangle($this->img, $x1, $y1, $x2, $y2, $barcol); //ImageRectangle($this->img, $x1, $y1, $x2, $y2, $bordercol); ImageRectangle($this->img, $x1, $y1, $x2, $y2, $this->text_color); $start_pos = $start_pos + $this->record_bar_width; $color_index++; $colbarcount++; } } $start_pos = $start_pos + $this->data_group_space; } } function DrawGraph() { if ( ($this->img) == "") { $this->InitImage(); } if (! is_array($this->data_values)) { $this->DrawBackground(); $this->DrawError("No array of data in \$data_values"); } else { if (!$this->data_color) { $this->SetDataColors(array("blue","green","yellow"),array("black")); } $this->FindDataLimits(); //Get maxima and minima for scaling $this->SetXLabelHeight(); //Get data for bottom margin $this->SetYLabelWidth(); //Get data for left margin if (!$this->plot_area_width) { $this->SetPlotAreaPixels("","","",""); //Set Margins } if (!$this->plot_max_y) { //If not set by user call SetPlotAreaWorld, $this->SetPlotAreaWorld("","","",""); } if ($this->data_type == "text-linear") { $this->SetEqualXCoord(); } $this->SetPointSize($this->point_size); $this->DrawBackground(); $this->DrawImageBorder(); $this->SetTranslation(); $this->DrawPlotAreaBackground(); //$foo = "$this->max_y, $this->min_y, $new_miny, $new_maxy, $this->x_label_height"; //ImageString($this->img, 4, 20, 20, $foo, $this->text_color); switch ($this->plot_type) { case "bars": $this->DrawPlotBorder(); $this->DrawLabels(); $this->DrawBars(); break; case "lines": $this->DrawPlotBorder(); $this->DrawLabels(); if ( $this->data_type == "text-linear") { $this->DrawLineSeries(); } elseif ( $this->data_type == "linear-linear-error") { $this->DrawLinesError(); } else { $this->DrawLines(); } break; case "area": $this->DrawPlotBorder(); $this->DrawLabels(); $this->DrawAreaSeries(); break; case "linepoints": $this->DrawPlotBorder(); $this->DrawLabels(); if ( $this->data_type == "text-linear") { $this->DrawLineSeries(); $this->DrawDotSeries(); } elseif ( $this->data_type == "linear-linear-error") { $this->DrawLinesError(); $this->DrawDotsError(); } else { $this->DrawLines(); $this->DrawDots(); } break; case "points"; $this->DrawPlotBorder(); $this->DrawLabels(); if ( $this->data_type == "text-linear") { $this->DrawDotSeries(); } elseif ( $this->data_type == "linear-linear-error") { $this->DrawDotsError(); } else { $this->DrawDots(); } break; case "pie": $this->DrawPieChart(); break; default: $this->DrawPlotBorder(); $this->DrawLabels(); $this->DrawBars(); break; } // $this->DrawLegend(); } $this->PrintImage(); } } ?>
The following is an html graph generator which I developed a while back and have made very good use of in several projects.. *update* - fixed the test array so it does not stretch the page out. <? ########################################################################################################### ### CHRONIC - a simple set of graphing functions ### 2002 - Joel De Gan, Tenshimedia LLC ### This program was written as a small replacment for a more comprehensive system that might use ### a full graphics class (i.e. jpgraph) where GD might not be available. ### not that complex, everything is passed in as arrays. ### I will add in more functionality as I go. ### ### expects: $curdir - current directory. ### $curdir = substr(getcwd()); ### also expects in general the globals and admin from the phpmyads/control dir. ########################################################################################################### // uncomment for testing.. $test = "true"; // set to true to view test if ($test == "true"){ $curdir = substr(getcwd(),0,-4); // admin $host = "http://localhost/phpmyads"; if ($go == ""){$go="index";} // set a default include_once $curdir."control/global.php"; include_once $curdir."control/admin.php"; }//fi // define our images. $horz1 = $host . "/images/global/graph/horz1.gif"; $horz2 = $host . "/images/global/graph/horz2.gif"; $horz3 = $host . "/images/global/graph/horz3.gif"; $horz4 = $host . "/images/global/graph/horz4.gif"; $horz5 = $host . "/images/global/graph/horz5.gif"; $MAX_H = 5; // max horizontal imgs $vert1 = $host . "/images/global/graph/vert1.gif"; $vert2 = $host . "/images/global/graph/vert2.gif"; $vert3 = $host . "/images/global/graph/vert3.gif"; $vert4 = $host . "/images/global/graph/vert4.gif"; $MAX_V = 4; // max vertical imgs // table wrapper function table_this($this, $border=1){ return "\n<table width=100% border=$border>\n".$this."\n</table>\n"; }//end function // table row wrapper function row_this($this){ return " <TR>\n ".$this."\n </TR>\n"; }//end function // table cell wrapper function cell_this($this, $colspan=1, $valign="bottom", $align="left"){ return " <td colspan=$colspan valign=$valign align=$align>".$this."</td>\n"; }//end function // make a vertival graph.. ########################################################################################################### // will look something like /* where $arr = array("First" => 341, "Second" => 231, "Third" => 299); // etc +------------+----------+ | values | legend | +------------+----------+ | # | A=first | | # # | B=sec | | # # # | C=third | |# # # # | D=fourth | +------------+----------+ */ function chronic_vert($arr, $mult=18, $title="", $type="b", $sort=""){ global $vert1, $vert2, $vert3, $vert4, $MAX_V; $tot = count($arr); $highval = $tot * $mult; // how high can these be.. $colortot = 4; // number of vert colors to use if ($sort){ arsort($arr); } $keys = array_keys($arr); $vals = array_values($arr); $highest = 0; for ($a=0;$a<$tot;$a++){ $allcount += $vals[$a]; if ($vals[$a] > $highest){ $highest = $vals[$a]; } }//rof $start = 1; // for images for ($a=0;$a<$tot;$a++){ $curr = $vals[$a]; $percent = (($curr * 100) / $allcount); $percent_int = floor($percent); $percent_float = number_format($percent, 1); // the percentage of this to highest. $testing = (($curr * 100)/ $highest ); // used in next stmt // height compared to highest total.. ################## $size = ceil(($testing / 100)* $highval); // final height of bar. ################## if ($start > $MAX_V){$start = 1; } $imgout = ${"vert".$start}; $graphpart .= cell_this("<img src=$imgout height=$size width=12>"); if ($type=="p"){ $out = "(".$percent_float ."%)"; }else if ($type == "n"){ $out = "(".$vals[$a].")"; }else{$out=$vals[$a] ."(".$percent_float ."%)";} $ledgpart .= $out .$keys[$a] ."<br>\n"; $start++; }//rof $graphpart = cell_this(table_this(row_this($graphpart),0)); $ledgpart = cell_this(table_this(row_this(cell_this($ledgpart, 0, "top")),0),0,"top"); $final = $graphpart . $ledgpart; if ($title <> ""){ $aprt = row_this(cell_this("<b>".$title."</b>", 2, "middle", "center")); return table_this($aprt . row_this($final)); }else{ return table_this(row_this($final)); }//fi }// end function chronic_vert // make a horizontal graph function chronic_horz($arr, $mult=18, $title="", $type="p", $sort=""){ global $horz1, $horz2, $horz3, $horz4, $horz5, $MAX_H; $tot = count($arr); $highval = $tot * $mult; // how high can these be.. $colortot = 5; // number of vert colors to use if ($sort){ arsort($arr); } $keys = array_keys($arr); $vals = array_values($arr); $highest = 0; for ($a=0;$a<$tot;$a++){ $allcount += $vals[$a]; if ($vals[$a] > $highest){ $highest = $vals[$a]; } }//rof $start = 1; // for images for ($a=0;$a<$tot;$a++){ $curr = $vals[$a]; $percent = (($curr * 100) / $allcount); $percent_int = floor($percent); $percent_float = number_format($percent, 1); // the percentage of this to highest. $testing = (($curr * 100)/ $highest ); // used in next stmt // height compared to highest total.. ################## $size = ceil(($testing / 100)* $highval); // final height of bar. ################## if ($start > $MAX_H){$start = 1; } $imgout = ${"horz".$start}; if ($type=="p"){ $out = "(".$percent_float ."%)"; }else if ($type == "n"){ $out = "(".$vals[$a].")"; }else{$out=$vals[$a] ."(".$percent_float ."%)";} $graphpart .= "<img src=$imgout height=18 width=$size><br>\n"; $ledgpart .= $out.$keys[$a] ."<br>\n"; $start++; }//rof $graphpart = cell_this(table_this(row_this($graphpart),0)); $ledgpart = cell_this(table_this(row_this(cell_this($ledgpart)),0)); $final = $ledgpart . $graphpart; if ($title <> ""){ $aprt = row_this(cell_this("<b>".$title."</b>", 2, "middle", "center")); return table_this($aprt . row_this($final)); }else{ return table_this(row_this($final)); }//fi }// end function ###TEST### if ($test == "true"){ ###################################################################################################################### $test = array("First" => rand (100, 12000), "Second" => rand (100, 15000), "Third" => rand (100, 14000), "Fourth" => rand (100, 13000)); echo "<table width=160><tr><td>"; echo chronic_vert($test, 20, "testing", "n", "sort"); echo "</td></tr></table>"; echo "<table width=160><tr><td>"; echo chronic_horz($test, 20, "testing", "p"); echo "</td></tr></table>"; ###################################################################################################################### }//fi ###TEST### ?>
This piece of code demostrates the use of phplot (see Code Gallery entry) to create inline superimposed graphs from large arrays of data. To facilitate this, random image files are generated in a temporary directory on the server, which are then displayed inline. When the temporary dir becomes too large, its contents are purged recursively. //******************************* Graphics ******************************// // This part Copyright (c) 2002 Chris Karakas <chris@karakas-online.de> // http://www.karakas-online.de // // Compute the graph here include ( "./phplot.php"); if (isset($balance_array["1"])){ $graph = new PHPlot; $tmpdir = "./tmp"; $prefix = "chart"; $maxbytes = 100000; //Create a file with random name in the temp dir, starting with $prefix $temp = tempnam($tmpdir,$prefix); //Add the .png ending and rename it, otherwise some web servers will not serve it. $temp_png = $temp . '.' . "png"; rename($temp,$temp_png); //Specify this random file to be the output file of the image $graph->SetOutputfile($temp_png); $graph->SetFileFormat("png"); // is default anyway //Don't draw the image yet $graph->SetPrintImage(0); //Don't output the file headers - we're inline! $graph->SetIsInline("1"); $graph->SetDataType( "linear-linear"); //First dataset to plot $graph->SetDataValues($balance_array); //Specify plotting area details $graph->SetImageArea(600,400); $graph->SetPlotType( "lines"); $graph->SetTitleFontSize( "2"); $graph->SetTitle( "Remaining balance"); $graph->SetPlotAreaWorld(0,0,($current_year*12*1.1),($financing_price * 1.1)); $graph->SetPlotBgColor( "white"); $graph->SetPlotBorderType( "left"); $graph->SetBackgroundColor( "white"); //Define the X axis $graph->SetXLabel( "Month"); $graph->SetHorizTickIncrement( "24"); $graph->SetXGridLabelType( "plain"); //Define the Y axis $graph->SetVertTickIncrement(($sale_price / 10)); $graph->SetPrecisionY(0); $graph->SetYGridLabelType( "data"); $graph->SetLightGridColor( "blue"); $graph->SetDataColors( array( "red"), array( "black") ); //Check size of tmp directory $tmpdirsize = dirsize($tmpdir); //If the size of the tmp dir has exceeded the maximum in bytes that we allow, //delete every file in it! We check this only once per run. if ($tmpdirsize > $maxbytes){ runlink($tmpdir); } //Draw the chart $graph->DrawGraph(); //Now, the image is ready - print it to the file! $graph->PrintImage(); //Set correct permissions chmod($temp_png,0644); //Determine the image size in order to set it correct in the img tag below. $size = getimagesize ("$temp_png"); echo "<a name=\"graphics\"><H3 align=\"center\">Graphics</H3></a><p align=\"center\"><img src=\"$temp_png\" {$size[3]}>"; } // Compute the second image here if (isset($principal_array["1"])){ $graph = new PHPlot; //Create a file with random name in the temp dir, starting with $prefix $temp = tempnam($tmpdir,$prefix); //Add the .png ending and rename it, otherwise some web servers will not serve it. $temp_png = $temp . '.' . "png"; rename($temp,$temp_png); //Specify this random file to be the output file of the image $graph->SetOutputfile($temp_png); $graph->SetFileFormat("png"); // is default anyway //Don't draw the image yet $graph->SetPrintImage(0); //Don't output the file headers - we're inline! $graph->SetIsInline("1"); $graph->SetDataType( "linear-linear"); //First dataset to plot $graph->SetDataValues($principal_array); //Specify plotting area details $graph->SetImageArea(600,400); $graph->SetPlotType( "lines"); $graph->SetTitleFontSize( "2"); $graph->SetTitle( "Interest vs. principal (monthly)"); $graph->SetPlotAreaWorld(0,0,($current_year*12*1.1),($monthly_payment * 1.1)); $graph->SetPlotBgColor( "white"); $graph->SetPlotBorderType( "left"); $graph->SetBackgroundColor( "white"); //Define the X axis $graph->SetXLabel( "Month"); $graph->SetHorizTickIncrement( "24"); $graph->SetXGridLabelType( "plain"); //Define the Y axis $graph->SetVertTickIncrement(($monthly_payment / 10)); $graph->SetPrecisionY(0); $graph->SetYGridLabelType( "data"); $graph->SetLightGridColor( "blue"); $graph->SetDataColors( array("green"), array("black") ); //Draw the first chart $graph->DrawGraph(); //Second chart on the image //Second dataset to plot $graph->SetDataValues($interest_array); //$graph->SetDataColors( array( "blue"), array( "black") ); //We already got them in the first graph $graph->SetDrawXDataLabels(0); //Draw a legend //Define the legend texts $graph->SetLegend(array("Principal","Interest")); //Set the colors for the legend texts $graph->SetDataColors( array( "green","blue"), array( "black","black") ); //Draw the legend $graph->DrawLegend(450,175,""); //Set the correct color for the second chart $graph->SetDataColors( array( "blue"), array( "black") ); //Draw the New data over the first chart $graph->DrawLines(); //Now, the image is ready - print it to the file! $graph->PrintImage(); //Set correct permissions chmod($temp_png,0644); //Determine the image size in order to set it correct in the img tag below. $size = getimagesize ("$temp_png"); echo "<p align=\"center\"><img src=\"$temp_png\" {$size[3]}>"; } function dirsize($directory){ if (!is_dir($directory)) return -1; $size = 0; if ($DIR = opendir($directory)){ while (($dirfile = readdir($DIR)) !== false){ if (is_link($directory . '/' . $dirfile) || $dirfile == '.' || $dirfile == '..') continue; if (is_file($directory . '/' . $dirfile)) $size += filesize($directory . '/' . $dirfile); else if (is_dir($directory . '/' . $dirfile)){ $dirSize = dirsize($directory . '/' . $dirfile); if ($dirSize >= 0) $size += $dirSize; else return -1; } } closedir($DIR); } return $size; } function runlink($directory){ if (!is_dir($directory)) return -1; if ($DIR = opendir($directory)){ while (($dirfile = readdir($DIR)) !== false){ if (is_link($directory . '/' . $dirfile) || $dirfile == '.' || $dirfile == '..') continue; if (is_file($directory . '/' . $dirfile)) unlink($directory . '/' . $dirfile); else if (is_dir($directory . '/' . $dirfile)){ runlink($directory . '/' . $dirfile); } } closedir($DIR); } } //******************************* End of Graphics ******************************//
This class converts data (sorted) into image/graph <?php /** * This class converts data (sorted) into image/graph * * @author Rochak Chauhan * @uses PHP 5.x */ class DataToGraph { private $x_axis_text = ''; private $y_axis_text= ''; private $x_dataArray = array(); private $y_dataArray = array(); private $width = 800; private $height = 600; private $black = ''; private $red = ''; private $image = ''; /** * Contructor function * * @param string $x_axis * @param string $y_axis * @param array $x_dataArray * @param array $y_dataArray * * @return string */ public function DataToGraph($x_axis, $y_axis, $x_dataArray, $y_dataArray) { if (trim($x_axis) == '') { throw new Exception("Please enter a name for x-axis"); } if (trim($y_axis) == '') { throw new Exception("Please enter a name for y-axis"); } if (trim($x_axis) == '') { throw new Exception("Please enter a name for x-axis"); } if (count($x_dataArray) > count($y_dataArray)) { throw new Exception("The elements of X-axis exceeds the elements of Y-axis"); } if (count($x_dataArray) < count($y_dataArray)) { throw new Exception("The elements of Y-axis exceeds the elements of X-axis"); } foreach ($x_dataArray as $xdata) { if (!is_numeric($xdata)) { throw new Exception("All the elements of X-axis array should be numeric"); } } foreach ($y_dataArray as $ydata) { if (!is_numeric($ydata)) { throw new Exception("All the elements of X-axis array should be numeric"); } } $this->x_axis_text = $x_axis; $this->y_axis_text = $y_axis; $this->x_dataArray = $x_dataArray; $this->y_dataArray = $y_dataArray; } /** * This function displays the generated image * * @param integer $imageWidth * * @return string */ public function displayImage($imageWidth, $imageHeight){ if (trim($imageWidth) == '') { throw new Exception("Image width cannot be blank"); } if (!is_numeric($imageWidth)) { throw new Exception("Image width can only be anumeric value"); } // initialise graph constants $this->margin = $this->width*(0.04); $this->width = $imageWidth; $this->height = $imageHeight; $this->drawCanvas(); $im = $this->image; if (!is_resource($im)) { throw new Exception("<br />No image canvas drawn. Please call drawCanvas function before assigning image resourse."); } // create short lines on X and Y Axis $this->createScaleOnY_axis(); $this->createScaleOnX_axis(); // get all X and Y coordinates $xlineLength = ($this->width-(2*$this->margin)); $ylineLength = ($this->height-(2*$this->margin)); $xScalingFactor = $xlineLength / $this->getMaximumLimit($this->x_dataArray) ; $yScalingFactor = $ylineLength / $this->getMaximumLimit($this->y_dataArray) ; for ($i=0; $i< count($this->x_dataArray); $i++){ $coordinatesArray[$i] = array ( 'x' => ($this->x_dataArray[$i]*$xScalingFactor), 'y' => ($this->y_dataArray[$i]*$yScalingFactor) ); } // plot points on X and Y Axis $this->plotPoints($coordinatesArray); imagejpeg($im, "graph.jpg"); return '<br /><img src="graph.jpg" />'; } /** * This function * * * @return void * */ private function plotPoints($coordinatesArray) { foreach ($coordinatesArray as $coordinates) { imagefilledrectangle ($this->image, $coordinates['x']-5, $this->height-$coordinates['y']-5, $coordinates['x'], $this->height-($this->margin), $this->red ); } } /** * This function creats scale on X-axis * * @return void */ private function createScaleOnY_axis() { $lineLength = ($this->height-(2*$this->margin)); $scale = ( $lineLength/10 ); for ($i = 1; $i <= 10 ; $i++) { imageline($this->image, ($this->margin-5), (($this->height-($this->margin)) - $i*$scale), ($this->margin+5), (($this->height-($this->margin)) - $i*$scale), $this->black ); } } /** * This function creats scale on Y-axis * * @return void */ private function createScaleOnX_axis() { $lineLength = ($this->width-(2*$this->margin)); $scale = ( $lineLength/10 ); for ($i = 1; $i <= 10 ; $i++) { imageline($this->image, ($this->margin + $i*$scale), (($this->height-($this->margin)) - 5), ($this->margin + $i*$scale), (($this->height-($this->margin)) + 5), $this->black ); } } /** * This function draws the imaage canvas along with X and Y coordinated * * @return void */ private function drawCanvas() { if ($this->width == '' || !is_numeric($this->width)) { throw new Exception("<br />Invalid value for width: $this->width. <br />Line: ". __LINE__." <br />Function: ".__FUNCTION__." <br />File: ".__FILE__); } if ($this->height == '' || !is_numeric($this->height)) { throw new Exception("<br />Invalid value for height: $this->height. <br />Line: ". __LINE__." <br />Function: ".__FUNCTION__." <br />File: ".__FILE__); } $fontSize = $this->width/10; $this->image = imagecreate($this->width, $this->height); $background_color = imagecolorallocate($this->image, 255, 200, 100); $this->black = imagecolorallocate($this->image, 0, 0, 0); $this->red = imagecolorallocate($this->image, 255, 0, 0); $text_color = imagecolorallocate($this->image, 233, 14, 91); // write x and y string imagestring($this->image, $fontSize, $this->margin-(.5*$this->margin), 5, $this->x_axis_text, $text_color); imagestringup($this->image, $fontSize, ($this->width-$this->margin*.5), ($this->height-$this->margin+20), $this->y_axis_text, $text_color); // write values on Y imagestring($this->image, 3, ($this->margin-(.5*$this->margin)), ($this->height-($this->margin)), '0', $text_color); $xlineLength = ($this->width-(2*$this->margin)); $ylineLength = ($this->height-(2*$this->margin)); $xscale = ( $xlineLength/10 ); $yscale = ( $ylineLength/10 ); $xLimit = $this->getMaximumLimit($this->x_dataArray)/10; $yLimit = $this->getMaximumLimit($this->y_dataArray)/10; for ($i=1; $i<=10; $i++) { imagestring($this->image, 3, $this->margin+($i*$xscale)-(.4*$this->margin), $this->height-($this->margin*.5), ($xLimit*$i), $this->red); imagestring($this->image, 3, $this->margin-($this->margin), $this->height-($i*$yscale + $this->margin)-($this->margin*.2), ($yLimit*$i), $this->red); } imageline($this->image, $this->margin, ($this->height-$this->margin), $this->margin, $this->margin, $this->black); imageline($this->image, $this->margin, ($this->height-$this->margin), ($this->width-$this->margin), ($this->height-$this->margin), $this->black); } /** * This function returns the maximum value in the array * * @param array $inputArray * * @return int */ private function getMaximumLimit($inputArray) { asort($inputArray); $max = end($inputArray); if ( ($max > 9) && ( ($max%100) != 0) ) { return ( $max + (100 - ($max%100)) ); } elseif ( ($max < 10) && ( ($max%10) != 0) ) { return ( $max + (10 - ($max%10)) ); } else { return $max; } } } ?>
Draws a dynamic PNG bar graph image from data in parameters <? // Welcome to "Club of the developers PHP" // http://phpclub.unet.ru/index_e.php3 ?> <?php /**************************************************************************/ /* you must supply to this script 3 parameters : title,width and data. */ /* - title is the title of the graph */ /* - width is the width of the generated graph */ /* - data is used for the values to be displayed */ /* to split the data you have to use separators "^" and "^^" */ /* -> item_title^value^^ */ /* ---------------------------------------------------------------------- */ /* call this script directly in the browser or in your html page with the */ /* img tag. */ /* example 1 : */ /* graph.php3?title=foo&width=500&data=a^15^^b^20^^ */ /* example 2 : */ /* <html> */ /* ... */ /* <img src="graph.php3?title=foo&width=500&data=a^15^^b^20^^"> */ /* ... */ /* </html> */ /* ---------------------------------------------------------------------- */ /* you can use as many data items as you want */ /* you need the GD library in your php module */ /* don't forget to encode you parameters (unicode) */ /* Steve Maranda steve_maranda@teluq.uquebec.ca */ /* Have fun ! */ //title $title = urldecode($title); //data $data = urldecode($data); //start positions of graph $x = 40; $y = 30; //right margin $right_margin= 20; $bar_width = 10; $total = 0; $max = 0; $unit = (($width-$x)-$right_margin) / 100; $items= explode( "^^",$data); //calculate total while (list($key,$item) = each($items)) { if ($item) { $pos = strpos($item, "^"); $value = substr($item,$pos+1,strlen($item)); $total = $total + $value; } } reset($items); //calculate height of graph $height = sizeof($items) * ($bar_width + 20); Header( "Content-type: image/png"); $im = imagecreate($width,$height); // Allocate colors $white=ImageColorAllocate($im,255,255,255); $yellow=ImageColorAllocate($im,240,240,70); $blue=ImageColorAllocate($im,0,64,128); $bar=ImageColorAllocate($im,64,100,168); //background ImageFilledRectangle($im,0,0,$width,$height,$blue); //title $title_x = (imagesx($im)-7.5*strlen($title))/2; ImageString($im,3,$title_x,4,$title,$white); //date //ImageString($im,1,$width-150,17,date("D M jS Y h:i:s A"),$white); //line Imageline($im,$x,$y-5,$x,$height-15,$bar); //draw data while (list($key,$item) = each($items)) { if ($item) { $pos = strpos($item, "^"); $item_title = substr($item,0,$pos); $value = substr($item,$pos+1,strlen($item)); //display percent ImageString($im,3,$x-25,$y-2,intval(round(($value/$total)*100)). "%",$yellow); //value right side rectangle $px = $x + ( intval(round(($value/$total)*100)) * $unit); //draw rectangle value ImageFilledRectangle($im,$x,$y-2,$px,$y+$bar_width,$bar); //draw item title ImageString($im,2,$x+5,$y+9,$item_title,$white); //draw empty rectangle ImageRectangle($im,$px+1,$y-2,($x+(100*$unit)),$y+$bar_width,$bar); //display numbers ImageString($im,1,($x+(100*$unit))-40,$y+12,$value. "/".$total,$white); } $y=$y+($bar_width+20); } // Display modified image ImagePng($im); // Release allocated ressources ImageDestroy($im); ?>
I guess you already had the Idea of this class. It create a Dynamic Bar Chart of your Dynamic Report, This class can be used for Finance Report, Site Log Report, or any other application that need Bar Chart Auto Generation <?php /* ******************************************************************** * This script is written by Hermawan Haryanto [hermawan@haryanto] * * Objective : To create Bar Chart of given Data * * Can be used for Finance Report, Log Report, * * or anything that need bar chart * * Create date : 09:25 - March 01, 2002 * * Licensed : GPL - Copyleft * ******************************************************************** */ class easyChart { var $title; var $width; var $height; var $bartitle; var $barheight; var $barwidth; var $background; var $multiply; var $spacebar; var $leftspace; var $rightspace; var $upspace; var $bottomspace; var $leftlegend; var $linecolor; var $barcolor; var $titlecolor; var $legendcolor; var $barinfocolor; function easyChart() { $this->title = "Chart Title"; $this->background = Array(153,204,102); $this->linecolor = Array(240,240,240); $this->barcolor = Array(255,255,153); $this->titlecolor = Array(111,166,55); $this->legendcolor = Array(0,0,0); $this->barinfocolor = Array(0,0,0); $this->width = 600; $this->height = 500; $this->barwidth = 20; $this->leftspace = 75; $this->rightspace = 25; $this->upspace = 50; $this->bottomspace = 50; $this->leftlegend = 10; } function setTitleColor($color) { $this->titlecolor = explode(",",$color); } function setLegendColor($color) { $this->legendcolor = explode(",",$color); } function setBarInfoColor($color) { $this->barinfocolor = explode(",",$color); } function setBarColor($color) { $this->barcolor = explode(",",$color); } function setLineColor($color) { $this->linecolor = explode(",",$color); } function setLeftLegend($leftlegend) { $this->leftlegend = $leftlegend; } function setLeftSpace($leftspace) { $this->leftspace = $leftspace; } function setRightSpace($rightspace) { $this->rightspace = $rightspace; } function setTitle($title) { $this->title = $title; } function setBackground($color) { $this->background = explode(",",$color); } function setWidth($width) { $this->width = $width; } function setHeight($height) { $this->height = $height; } function setBarWidth($barwidth) { $this->barwidth = $barwidth; } function addBar($bartitle,$barheight) { $this->bartitle[] = $bartitle; $this->barheight[] = $barheight; } function prepare() { $arr = $this->barheight; sort($arr); reset($arr); $this->highestvalue = end($arr); $this->valueincriement = $this->highestvalue / $this->leftlegend; $this->multiply = ( ($this->height-($this->upspace + $this->bottomspace)) / $this->highestvalue); $this->spacebar = ( ($this->width - ($this->leftspace + $this->rightspace)) - ($this->barwidth * count($arr) ) ) / (count($arr)+1); $this->legendspace = ($this->height - ($this->upspace+$this->bottomspace)) / $this->leftlegend; if($this->barwidth * count($this->barheight) > ($this->width-($this->upspace+$this->bottomspace))){ $err = "Bar width is to large"; } if($err!=""){ print $err; exit; } } function generateChart() { $im = ImageCreate($this->width,$this->height); $white = ImageColorAllocate($im,255,255,255); $background = ImageColorAllocate($im,$this->background[0],$this->background[1],$this->background[2]); $black = ImageColorAllocate($im,0,0,0); $gray = ImageColorAllocate($im,100,100,100); $linecolor = ImageColorAllocate($im,$this->linecolor[0],$this->linecolor[1],$this->linecolor[2]); $barcolor = ImageColorAllocate($im,$this->barcolor[0],$this->barcolor[1],$this->barcolor[2]); $titlecolor = ImageColorAllocate($im,$this->titlecolor[0],$this->titlecolor[1],$this->titlecolor[2]); $legendcolor = ImageColorAllocate($im,$this->legendcolor[0],$this->legendcolor[1],$this->legendcolor[2]); $barinfocolor = ImageColorAllocate($im,$this->barinfocolor[0],$this->barinfocolor[1],$this->barinfocolor[2]); @ImageFilledRectangle($im,0,25,$this->width,$this->height-15,$background); @ImageFilledRectangle($im,1,26,$this->width-2,$this->height-16,$white); @ImageFilledRectangle($im,2,27,$this->width-3,$this->height-17,$background); @ImageFilledRectangle($im,$this->leftspace,$this->upspace-10,$this->width-$this->rightspace,$this->height-($this->bottomspace-20),$white); $titlewidth = strlen($this->title) * ImageFontWidth(5); $titlexpos = ($this->width - $titlewidth)/2; @ImageString ($im, 5, $titlexpos, 5, $this->title, $titlecolor); @ImageString ($im, 1, 0, $this->height - 10, "easyChart.class - Get your own copy at http://hermawan.haryan.to it's Licensed under GNU Public License", $black); for($i=0;$i<=$this->leftlegend;$i++){ $legendx = 5; $legendy = $this->upspace + ($this->legendspace * $i) - 6; @ImageString($im, 2, $legendx, $legendy, $this->highestvalue-($this->valueincriement*$i), $legendcolor); @ImageLine ($im, $this->leftspace, $legendy+6, $this->width - $this->rightspace, $legendy+6, $linecolor); } for($i=0;$i<count($this->barheight);$i++){ $j=$i+1; $x1 = ($j * $this->spacebar) + ($i * $this->barwidth) + $this->leftspace; $y1 = $this->height - ($this->barheight[$i]*$this->multiply) - $this->upspace; $x2 = $x1 + $this->barwidth; $y2 = $this->height - $this->bottomspace; $bartitlewidth = strlen($this->bartitle[$i]) * ImageFontWidth(2); $centerofbar = $x1 + ($this->barwidth / 2); $bartitlex = $centerofbar - ($bartitlewidth/2); $bartitley = $y2 + 5; @ImageFilledRectangle($im, $x1, $y1, $x2, $y2, $barcolor); @ImageString($im, 2, $bartitlex, $bartitley, $this->bartitle[$i], $barinfocolor); } @ImageJPEG($im); @ImageDestroy($im); } }; ?> <?php $chart = new easyChart(); // Object initialized $chart->setTitle("This is my Bar Chart Title"); // Title of Chart $chart->setBackground("153,204,102"); // Background of chart [opt] $chart->setLineColor("225,225,225"); // Line color separator [opt] $chart->setBarColor("255,255,153"); // Bar color [opt] $chart->setTitleColor("111,166,55"); // Color Title [opt] $chart->setLegendColor("0,0,0"); // Legend Color [opt] $chart->setBarInfoColor("0,0,0"); // Bar Info Color [opt] $chart->setWidth(600); // Width of Chart $chart->setHeight(500); // Height of Chart $chart->setBarWidth(20); // Bar Width $chart->setLeftSpace(75); // Left Space $chart->setRightSpace(25); // Right Space $chart->setLeftLegend(10); // Left Legend $chart->addBar("Jan",12000000); // Sample content of chart $chart->addBar("Peb",15000000); $chart->addBar("Mar",10000000); $chart->addBar("Apr",9000000); $chart->addBar("Mei",18000000); $chart->addBar("Jun",12000000); $chart->addBar("Jul",160000); $chart->addBar("Ags",14000000); $chart->addBar("Sept",12000000); $chart->addBar("Okt",17000000); $chart->addBar("Nop",14000000); $chart->addBar("Des",9000000); $chart->prepare(); // Chart Preparation $chart->generateChart(); // Chart Generation ?>
Graph drawing class. Can draw any combination of line, point, bar, or area graphs. Also supports GIF and PNG, legends, negative values, stacked/overlapping bars, numeric x-axis, brushed lines with custom brushes. <?php /* Go to this URL for the latest version: http://phpclasses.UpperDesign.com/browse.html/file/317 */ ?>
Graphite is a php graphing class which supports multiple data plots with bars, lines, or areas on a single graph. Negitive values are also supported. Check out examples <a href="http://www.cjhunter.com/~nathan/graph_example.html">here</a> <? /* Graphite - PHP graphing class (C) C.E Publications Description: Graphite is a generic php data graphing class. Version: 0.5 Author: Nathan Cassano <nathan@cjhunter.com> Homepage: http://www1.cjhunter.com/~nathan/ Example: http://www1.cjhunter.com/~nathan/graphite_exampe.gif Usage: $test = new graphite(); $test->filename = "mygif.gif"; $test->width = 400; $test->height = 300; $test->y_axis_label = "Meaningless data"; $test->y_lables = xrange(-100, 1000, 50); $test->x_axis_label = "Days of the Week"; $test->data = array(210, -59, 171, 603, 335, 427, 556); $test->data_lables = array("Sun", "Mon","Tue","Wed","Thr","Fri","Sat"); $test->init(); $test->prep(); $test->plot(20); $test->data = array(110, -9, 121, 303, 135, 227, 256); $test->graph_color = ImageColorAllocate($test->image,0,255,0); $test->prep(); $test->plot(20); $test->close(); */ class graphite { /* Public variables */ /* filename image is saved as */ var $filename = "graphite.gif"; /* Size of the gif */ var $width = 600; var $height = 400; /* Text labels describing the x and y axis */ var $x_axis_label = "x_axis"; var $y_axis_label = "y_axis"; /* The array of integers data to be plotted */ var $data = array(); /* Text labels on the x axis corresponding to each element in $data */ var $data_lables = array(); /* Text labels on the y axis describing the range of the data */ var $y_lables = array(); /* Default font to use when printing */ var $font = 3; /* Default colors */ var $background_color = 0; var $border_color = 0; var $graph_color = 0; /* * Private variables (only in thought) */ /* image handle */ var $image; /* The virtual range within that the data is displayed on the graph */ var $y_range_pos; var $y_range_neg; /* cooridnate the x axis is graphed */ var $x_axis; /* Width and Height in pixels of the plotting area */ var $plotarea_width; var $plotarea_height; /* Array of Plotted data in (x,y) format */ var $plotted_data = array(); /* * Defacto Data class constructor */ function init() { /* Create image handle */ $this->image = imagecreate($this->width, $this->height); /* Allocate Standard Colors */ $this->background_color = ImageColorAllocate($this->image, 255,255,255); $this->border_color = ImageColorAllocate($this->image, 0,0,0); $this->graph_color = ImageColorAllocate($this->image, 0,0,255); /* Find longest string of the y_lables */ $longest = strlen(max($this->y_lables)); $this->plotarea_width = $this->width - 35 - ($longest * 7); $this->plotarea_height = $this->height - 50; /* Set the display range */ if(!isset($this->y_range_pos)) { $this->y_range_pos = max($this->y_lables); } if(!isset($this->y_range_neg)) { $this->y_range_neg = abs(min($this->y_lables)); } /* Calculate where to graph the x axis */ $this->x_axis = ($this->y_range_pos / ($this->y_range_pos + $this->y_range_neg)) * $this->plotarea_height; /* Draw Background */ imagefilledrectangle($this->image, 0,0,$this->width - 1, $this->height - 1, $this->background_color); /* Draw y axis label */ imagestringup($this->image, $this->font, 10, ($this->plotarea_height / 2) + (strlen($this->y_axis_label) * 3.5), $this->y_axis_label, $this->border_color); /* Draw x axis label */ imagestring($this->image, $this->font, (($this->width - $this->plotarea_width) + $this->plotarea_width / 2) - (strlen($this->x_axis_label) * 3.5), $this->height - 25, $this->x_axis_label, $this->border_color); /* Draw plot borders */ imageline($this->image, $this->width - $this->plotarea_width, 0, $this->width - $this->plotarea_width, $this->plotarea_height, $this->border_color); imageline($this->image, $this->width - $this->plotarea_width, $this->plotarea_height, $this->width, $this->plotarea_height, $this->border_color); /* Draw x axis*/ imageline($this->image, $this->width - $this->plotarea_width, $this->x_axis, $this->width, $this->x_axis, $this->border_color); /* Draw y lables, if present */ if($num_lable = count($this->y_lables)) { reset($this->y_lables); /* Calculate the space between each label */ $label_space = $this->plotarea_height / ($num_lable - 1); for($y = $this->plotarea_height; $y > -1; $y = $y - $label_space) { $label = current($this->y_lables); $left_offset = strlen($label) * 7; /* Write label string */ imagestring($this->image, $this->font, $this->width - $this->plotarea_width - $left_offset - 4, $y - 1, $label, $this->border_color); /* Draw Data marker */ imageline($this->image, $this->width - $this->plotarea_width - 2, $y, $this->width - $this->plotarea_width, $y, $this->border_color); next($this->y_lables); } } /* Draw data lables, if present */ if($num_lable = count($this->data_lables)) { current($this->data_lables); /* Calculate the space between each label */ $label_space = $this->plotarea_width / ($num_lable + 1); for($x = ($this->width - $this->plotarea_width) + $label_space; $x < $this->width; $x = $x + $label_space) { $label = current($this->data_lables); $left_offset = (strlen($label) * 6) / 2; /* Write label string */ imageline($this->image, $x, $this->plotarea_height, $x, $this->plotarea_height + 2, $this->border_color); /* Draw Data marker */ imagestring($this->image, $this->font, $x - $left_offset, $this->plotarea_height + 4, $label, $this->border_color); next($this->data_lables); } } } /* * Plot data to plotted_data */ function prep() { /* If data_lables present get spacing from data_lables */ if($num_lable = count($this->data_lables)) { $label_space = $this->plotarea_width / ($num_lable + 1); /* If data present get spacing from data */ }elseif($num_lable = count($this->data)){ $label_space = $this->plotarea_width / ($num_lable + 1); }else{ echo "Error: No data to prepare"; exit; } reset($this->data); $plotted_index = 0; for($x = ($this->width - $this->plotarea_width) + $label_space; $x < $this->width; $x = $x + $label_space) { $data_entry = current($this->data); /* if data_entry off the top of the chart, clip it */ if($data_entry > $this->y_range_pos) {$data_entry = $this->y_range_pos;} /* if data_entry off the bottom of the chart, clip it */ if($data_entry < ($this->y_range_neg * -1)) {$data_entry = $this->y_range_neg * -1;} if($data_entry >= 0) { $y = $this->x_axis - ($this->x_axis * ($data_entry / $this->y_range_pos)); }else{ $y = $this->x_axis + (($this->plotarea_height - $this->x_axis) * (($data_entry * -1) / $this->y_range_neg)); } /* Write plotting data to plotted_data variable */ $this->plotted_data[$plotted_index] = array($x, $y); $plotted_index++; next($this->data); } } /* * Plot data to image as solid bars */ function plot($bar_width = 10) { reset($this->plotted_data); $bar_width = $bar_width / 2; while(list($x, $y) = current($this->plotted_data)) { if($y < $this->x_axis) { imagefilledrectangle($this->image, $x - $bar_width, $y, $x + $bar_width, $this->x_axis, $this->graph_color); }else{ imagefilledrectangle($this->image, $x - $bar_width, $this->x_axis, $x + $bar_width, $y, $this->graph_color); } next($this->plotted_data); } } /* * Save file and free memory */ function close() { imagegif($this->image, $this->filename); imagedestroy($this->image); } } /* * graphite_line Class extend plot() function */ class graphite_line extends graphite { function plot() { $count = count($this->plotted_data); reset($this->plotted_data); $y_last = $this->x_axis; list($x_last, $junk) = current($this->plotted_data); reset($this->plotted_data); for($i = 0; $i < $count; $i++) { list($x_next, $y_next) = current($this->plotted_data); imageline($this->image, $x_next, $y_next, $x_last, $y_last, $this->graph_color); $x_last = $x_next; $y_last = $y_next; next($this->plotted_data); } imageline($this->image, $x_last, $y_last, $x_next, $this->x_axis, $this->graph_color); } } /* * graphite_area Class extend plot() function */ class graphite_area extends graphite { function plot() { reset($this->plotted_data); list($x, $y) = current($this->plotted_data); $poly[] = $x; $poly[] = $this->x_axis; reset($this->plotted_data); while(list($x, $y) = current($this->plotted_data)) { $poly[] = $x; $poly[] = $y; $x_last = $x; next($this->plotted_data); } $poly[] = $x_last; $poly[] = $this->x_axis; imagefilledpolygon($this->image, $poly, count($poly) / 2, $this->graph_color); } } /* * Returns an array of integers given a range */ function xrange($begin, $end, $step = 1) { if($begin > $end){ if($step >= 0) {echo "Error: 'step' argument is positive or zero"; exit;} for($i = $begin; $i >= $end; $i = $i + $step) {$range[] = $i;} }else{ if($step <= 0){echo "Error: 'step' argument is negitive or zero"; exit;} for($i = $begin; $i <= $end; $i = $i + $step) {$range[] = $i;} } return $range; } ?>
Generates a bar graph view of the result of an online poll. <? /*The example uses the following files: poll.php3 : the main script gifdraw.php3 : draws the GIF graph poll.yn : maintains votes submitted (yes:no) poll.gif : a blank 200x100 GIF To download the source go to http://www.campusindia.org/poll/poll.zip */ /* poll.php3 * * Online polling script * by Sreshth Kumar <skumar@deutech.com> * */ ?> <HTML><HEAD><TITLE>Online Poll</TITLE></HEAD><BODY> <H2>Online Poll</H2> <P> <? if(isset($cmd) && $cmd=="answered"): // Show answer echo "You answered <B>$pollanswer</B>"; echo "<P>The poll results so far:<P>"; // Read from file $fp=fopen("poll.yn", "r"); $data=fgets($fp, 4096); $answer = explode(":", $data); fclose($fp); // Check answer and update file if($pollanswer=="YES"): $answer[0]++; elseif($pollanswer=="NO"): $answer[1]++; endif; // Write to file $fp=fopen("poll.yn", "w"); $data = implode(":", $answer); fputs($fp, $data); fclose($fp); // Show poll result echo "<P><IMG SRC=\"gifdraw.php3?$data\" BORDER=0><P>"; endif; ?> <B>Will India send troops to Sri Lanka?</B> <P> <FORM NAME="pollform" ACTION="<?echo $PHP_SELF?>" METHOD=POST> <INPUT TYPE=hidden NAME=cmd VALUE=answered> <INPUT TYPE=radio NAME=pollanswer VALUE=YES>Yes <INPUT TYPE=radio NAME=pollanswer VALUE=NO>No <P> <INPUT TYPE=submit VALUE=Submit> </FORM> </BODY></HTML> <? /* gifdraw.php3 * * Online polling script * GIF drawing module * by Sreshth Kumar <skumar@deutech.com> * */ $data=$argv[0]; $answer = explode(":", $data); $yes=$answer[0]; $no =$answer[1]; if($yes>$no): $max=$yes; else: $max=$no; endif; $yes_barlength=round(($yes/$max)*160); $no_barlength=round(($no/$max)*160); $im=ImageCreateFromGif("poll.gif"); $font=3; $red =ImageColorAllocate($im, 255, 0, 0); $green=ImageColorAllocate($im, 0, 255, 0); $blue =ImageColorAllocate($im, 0, 0, 255); $black=ImageColorAllocate($im, 0, 0, 0); $white=ImageColorAllocate($im, 255, 255, 255); ImageFilledRectangle($im, 40,30, $yes_barlength,45, $green); ImageFilledRectangle($im, 40,55, $no_barlength,70, $red); $yes_textpos=$yes_barlength+10; $no_textpos=$no_barlength+10; $total=$yes+$no; $yes_percent=round(($yes/$total)*100); $no_percent=round(($no/$total)*100); $yes_percent="$yes_percent%"; $no_percent="$no_percent%"; $imgX=ImageSX($im); $yx=($yes_barlength+30)/2; $nx=($no_barlength+30)/2; $title="ONLINE POLL RESULTS"; $tx=round(($imgX-7.5*strlen($title))/2); $legend="$total votes cast"; $lx=round(($imgX-7.5*strlen($legend))/2); ImageString($im, $font, $tx, 5, $title, $blue); ImageString($im, $font, 10, 30, "YES", $black); ImageString($im, $font, 10, 55, "NO", $black); ImageString($im, $font, $yx, 30, $yes, $white); ImageString($im, $font, $nx, 55, $no, $white); ImageString($im, $font, $yes_textpos, 30, $yes_percent, $black); ImageString($im, $font, $no_textpos, 55, $no_percent, $black); ImageString($im, $font, $lx, 80, $legend, $black); Header("Content-type: image/gif"); ImageGif($im); ImageDestroy($im); ?>
This the easy way to make a line chart. This app. containts 2 files : 1. graph.php -- as a class library 2. image.php -- as image creator -- graph.php --- <?php /* =================================== File : image.php Atuhor : Ruddy J.Suhatril email : ruddy_js@yahoo.com http://ruddy.powernet.or.id Written : 11 September 2001 Last Updated : 12 September 2001 =================================== This app. contains 2 files : 1. graph.php (this file) as class file 2. image.php as image creator This app. is absolutely free. If you have any suggestion or question please contact me !!! :) */ class row { var $datanya,$head; function row(){ $this->datanya=array(); } function cell($legend,$dat){ $this->datanya[$legend]=$dat; } function xp(){ return $this->datanya; } } class phpGraphIt { var $tabledata,$rowdata,$confdata; var $series,$imagefile,$rwdata,$version; function phpGraphIt(){ $this->tabledata=array(); $this->series=array(); $this->imagefile="image.php"; $this->graphtype=0; $this->confdata=array("x"=>600, "y"=>400, "showlegend"=>0, "showgrid"=>1, "gridy"=>10); $this->version="1.0.0"; } function setgridy($shw){ $this->confdata["gridy"]=$shw; } function showgrid($shw){ $this->confdata["showgrid"]=$shw; } function showlegend($shw){ $this->confdata["showlegend"]=$shw; } function setarea($x,$y){ $this->confdata["x"]=$x; $this->confdata["y"]=$y; } function setType($type){ $this->graphType=$type; } function series($data="",$mean){ $this->series[strtolower($data)]=$mean; } function xseries($rwdata=""){ $this->rwdata=$rwdata; $this->tabledata[$rwdata]=array(); $this->rowdata=new row; } function cell($legend,$data){ $this->rowdata->cell(strtolower($legend),$data); $this->tabledata[$this->rwdata]=$this->rowdata->xp(); } function loadGraph(){ switch($this->graphtype){ default : $imagefile="image.php"; break; } $serdata=base64_encode(serialize($this->series)); $graphdata=base64_encode(serialize($this->tabledata)); $confdata=base64_encode(serialize($this->confdata)); return $imagefile."?graphdata=".$graphdata."&serdata=".$serdata."&confdata=".$confdata; } } ?> -- image.php --- <?php /* =================================== Class : phpGraphIt Atuhor : Ruddy J.Suhatril email : ruddy_js@yahoo.com http://ruddy.powernet.or.id Written : 11 September 2001 Last Updated : 12 September 2001 =================================== This app. contains 2 files : 1. graph.php as class file 2. image.php (this file) as image creator This app. absolutely free. If you have any suggestion or question please contact me, */ if((!empty($graphdata))&&(!empty($serdata))){ $dataser=unserialize(base64_decode($serdata)); $datagraph=unserialize(base64_decode($graphdata)); $dataconf=unserialize(base64_decode($confdata)); foreach($dataconf as $key=>$val){ $$key=$val; } $minx=50; $maxy=30; $maxx=$x-50; $miny=$y-50; $fonty=1; $fontx=1; $lnglegend=4; header("Content-type: image/jpeg"); $im=imagecreate($x,$y); $color[1]=imagecolorallocate($im,0,0,124); $color[3]=imagecolorallocate($im,255,0,255); $color[2]=imagecolorallocate($im,0,255,255); $color[4]=imagecolorallocate($im,150,0,255); $color[5]=imagecolorallocate($im,150,55,55); $white=imagecolorallocate($im,255,255,255); $black=imagecolorallocate($im,0,0,0); imagefill($im,0,0,$white); //Serach criteria for maxseries and maksimum value $maxdata=0; $maxseries=0; $maxrowdata=1; foreach($datagraph as $dat){ $mindata=min($dat); ksort($dat); $i=0; foreach($dat as $key=>$val){ $i++; if($maxdata<=$val) $maxdata=$val; } if($maxseries<=$i) $maxseries=$i; $maxrowdata++; } //Process to create grid y $vy=$miny; $vx=$minx; $vx0=$minx-1; $vx1=$minx+1; $maxyxis=$miny-$maxy; $county=round($maxyxis/$gridy); $grd=$maxdata/$gridy; imageline($im,$minx,$miny,$maxx,$miny,$black); for($i=0;$i<=$gridy;$i++){ if($showgrid){ imagedashedline($im,$minx,$vy,$maxx,$vy,$black); } $vy0=$vy-1; $vy1=$vy+1; $strgridy=floor($i*$grd); $stlength=strlen($strgridy); $strposx=($minx-$stlength)-($stlength*5)-1; $strposy=$vy-($fonty*4); imagefilledrectangle($im,$vx0,$vy0,$vx1,$vy1,$black); imagestring($im,$fonty,$strposx,$strposy,$strgridy,$black); $vy-=$county; } //Process to create x series $maxxis=$maxx-$minx; $countx=floor($maxxis/$maxseries); $vx=$minx; $vy=$miny; $vy0=$vy-1; $vy1=$vy+1; imageline($im,$minx,$miny,$minx,$maxy,$black); for($i=1;$i<=$maxseries;$i++){ $place[$i]=$vx; $vx0=$vx-1; $vx1=$vx+1; $strposy=$vy+10; $strposx=$vx; imagefilledrectangle($im,$vx0,$vy0,$vx1,$vy1,$black); imagestring($im,$fontx,$strposx,$strposy,$dataser[$i],$black); $vx+=$countx; } //Create line graph reset($datagraph); $h=1; $strposx=$minx; $strposy=$y-20; while(list($key,$val)=each($datagraph)){ if($showlegend){ $strposx1=$strposx+$lnglegend*5; imageline($im,$strposx,$strposy,$strposx1,$strposy,$color[$h]); $strposx=$strposx1+10; $strposy1=$strposy-3; imagestring($im,$fontx,$strposx,$strposy1,$key,$black); $strposx=$strposx1+(strlen($key)*$fontx*10); } for($i=1;$i<=$maxseries;$i++){ $j=$i+1; if(isset($val[$j])&&($val[$j]!=0)){ $yy=round($miny-(($val[$i]/$maxdata)*$maxyxis)); $yy1=round($miny-(($val[$j]/$maxdata)*$maxyxis)); imageline($im,$place[$i],$yy,$place[$j],$yy1,$color[$h]); } } $h++; } imagejpeg($im); imagedestroy($im); } else { // No image } ?>