How to build an intelligent bar chart program in PHP

This article mainly introduces the method of PHP to build the Intelligent bar Chart program, the interested friend's reference, hope to be helpful to everyone.

This article mainly introduced the PHP to create the Intelligent bar Chart program, used for reports and other related information, as follows:

<?php/*** * @project Bar Graph program * @license GPL * @package * @file grapbar.php * @date 2007-4-3 * @version 1.0 * @last Modified * Define histogram (column chart) class * * Note that before using, make sure that the font path exists and allow access, and if there is an error, check the Open_basedir item in the php.ini configuration, if not, add it, or set the package in the program including * * Intelligent bar Chart Program, used for reports, etc. * ***/define ("Default_font_path", "C:/windows/fonts/simhei.ttf");  Class Singlebar {private $_x;  Private $_y;  Private $_h;  Public $_l = 50;  Private $_w = null;  Private $_srcpoints = Array ();    Private $_points = Array ();  Public function __construct ($x, $y, $h, $l = n, $w = null) {$this->_x = $x;  $this->_y = $y;  $this->_h = $h;  $this->_l = $l;  $this->_w = $w;  $this->_srcpoints = $this->getsrcpoints ();  $this->_points = $this->getpoints (); The Public Function getsrcpoints () {return Array (array ($this->_x, $this->_y), Array ($this->_x+$ this->_l, $this->_y), Array ($this->_x+ (1.35* $this->_l), $this->_y-(0.35* $this->_l)), Array ($this->_x+ (0.35* $this->_l), $this->_y-(0.35* $this->_l)), Array ($this->_x, $this->_y+ $this _h), Array ($this->_x+ $this->_l, $this->_y+ $this->_h), Array ($this->_x+ (1.35* $this->_l), $this-&G  t;_y+ $this->_h-(0.35* $this->_l));  Public Function getpoints () {$points = array ();   foreach ($this->_srcpoints as $key = + $val) {$points [] = $val [0];  $points [] = $val [1];  } return $points; Public Function gettoppoints () {return array_slice ($this->_points, 0, 8);//Top coordinates} public function getbelowp Oints () {return Array_merge (Array_slice ($this->_points, 0, 2), Array_slice ($this->_points, 8, 4), Array_slice ($t His->_points, 2, 2)); The following coordinates} public function getrightsidepoints () {return Array_merge (Array_slice ($this->_points, 2, 2), Array_slice ( $this->_points, 4), Array_slice ($this->_points, 4, 2)); Right coordinate} public function draw ($image, $topColor, $belowColor, $sideColor, $bOrdercolor = null, $type = ' left ') {if (Is_null ($borderColor)) {$borderColor = 0XCCCCCC;  } $top _rgb = $this->getrgb ($topColor);  $below _rgb = $this->getrgb ($belowColor);  $side _rgb = $this->getrgb ($sideColor);  $top _color = imagecolorallocate ($image, $top _rgb[' R '], $top _rgb[' G '], $top _rgb[' B ']);  $below _color = imagecolorallocate ($image, $below _rgb[' R '], $below _rgb[' G '], $below _rgb[' B ']);     $side _color = imagecolorallocate ($image, $side _rgb[' R '], $side _rgb[' G '], $side _rgb[' B ']); Imagefilledpolygon ($image, $this->gettoppoints (), 4, $top _color); Draw Top Face Imagepolygon ($image, $this->gettoppoints (), 4, $borderColor); Draw Top Edge Imagefilledpolygon ($image, $this->getbelowpoints (), 4, $below _color); Draw below Imagepolygon ($image, $this->getbelowpoints (), 4, $borderColor);   Draw the following edge if ($type = = ' Left ') {Imagefilledpolygon ($image, $this->getrightsidepoints (), 4, $side _color);//Draw Right Side Imagepolygon ($image, $this->getrightsidepoints (), 4, $borderColor);  Draw Side Edge}} public Function getRGB ($color) {$ar = array ();  $color = Hexdec ($color);  $ar [' R '] = ($color >>16) & 0xFF;  $ar [' G '] = ($color >>8) & 0xFF;  $ar [' B '] = ($color) & 0xFF;  return $ar;  }} class Bar {private $_w;  Private $_h;  Private $_bgcolor = "FFFFFF";  Private $_barheights = Array ();  Private $_bartexts = Array ();  Private $_barcolors = Array ();  Public $_title;  Public $_paddingtop = 30;  Public $_paddingbottom = 100;  Public $_paddingleft = 45;  Public $_paddingright = 2;  Public $_barl = 50;    Public $image;  Public function __construct ($imgW, $imgH, $barHeights, $barTexts = null, $barColors = null) {$this->_w = $imgW;  $this->_h = $imgH;  $this->_barheights = $barHeights;  $this->_bartexts = $barTexts;  $this->_barcolors = $barColors;  $this->_paddingbottom = $this->resetpaddingbottom ();  $this->_h = $this->resetheight ();  $this->image = Imagecreatetruecolor ($this->_w, $this->_h); } PUBlic function Stroke () {$this->drawbg ();  $this->drawbars ();  $this->drawtitle ();  $this->drawlables ();  Ob_start ();  Header ("Content-type:image/png");  Imagepng ($this->image); Header ("Content-type:".)     Image_type_to_mime_type (Imagetype_jpeg));  Imagejpeg ($this->image);  Imagedestroy ($this->image);  } public Function Drawbg () {$img _w = $this->_w;  $img _h = $this->_h;  $paddingTop = $this->_paddingtop;  $paddingBottom = $this->_paddingbottom;  $paddingLeft = $this->_paddingleft;  $paddingRight = $this->_paddingright;  $rgb = $this->getrgb ($this->_bgcolor);  $BG = Imagecolorallocate ($this->image, $rgb [' R '], $rgb [' G '], $rgb [' B ']);  Imagefilledrectangle ($this->image, 0, 0, $img _w, $img _h, $BG);  $side _BG = Imagecolorallocatealpha ($this->image, 220, 220, 220, 75);  $side _bg2 = imagecolorallocate ($this->image, 220, 220, 220);  $border _color = imagecolorallocate ($this->image, 190, 190, 190); $line _color = ImagecolOrallocate ($this->image, 236, 236, 236);     $dial _color = imagecolorallocate ($this->image, 131, 131, 131);  $x 1 = $paddingLeft;  $y 1 = $paddingTop;  $x 2 = $img _w-$paddingRight;  $y 2 = $img _h-$paddingBottom;  Imagerectangle ($this->image, $x 1, $y 1, $x 2, $y 2, $border _color);     Imagefilledpolygon ($this->image, Array ($x 1-5, $y 1+10, $x 1-5, $y 2+10, $x 1, $y 2, $x 1, $y 1), 4, $side _BG);  Imagepolygon ($this->image, Array ($x 1-5, $y 1+10, $x 1-5, $y 2+10, $x 1, $y 2, $x 1, $y 1), 4, $border _color);     Imagefilledpolygon ($this->image, Array ($x 1-5, $y 2+10, $x 2-5, $y 2+10, $x 2, $y 2, $x 1, $y 2), 4, $side _BG);  Imagepolygon ($this->image, Array ($x 1-5, $y 2+10, $x 2-5, $y 2+10, $x 2, $y 2, $x 1, $y 2), 4, $border _color);     Imageline ($this->image, $x 1, $y 2, $x 2, $y 2, $side _bg2);  $total _h = $img _h-$paddingTop-$paddingBottom;  $every _h = $total _H/11; for ($i =1; $i <=10; $i + +) {imageline ($this->image, $x 1, $y 1+ ($every _h* $i), $x 2, $y 1+ ($every _h* $i), $line _color); /Draw Network cable} $max _h = max ($this->_barheights);   for ($i =1; $i <=10; $i + +) {$value = $max _h-(($max _H/10) * ($i-1));   $value = Strval ($value);   $str _w = strlen ($value); Imageline ($this->image, $x 1-5-3, $y 1+10+ ($every _h* $i), $x 1-3+1, $y 1+10+ ($every _h* $i), $dial _color);  Draw tick lines imagestring ($this->image, 3, $x 1-5-3-$str _w-1, $y 1+10+ ($every _h* $i) -5, $value, 0x000000);  }} Public Function Drawbars () {$counts = count ($this->_barheights);   if (Empty ($this->_barcolors)) {$color = $this->setcolor ();   $this->_barcolors = array_slice ($color, 0, $counts);  Shuffle ($this->_barcolors); } $every _w = ($this->_w-$this->_paddingleft-$this->_paddingright)/$counts;  Each section wide $barL = $every _w; $barL = ($barL > $this->_barl*1.35+6)?  $this->_barl: $barL/1.35-6;  $max _h = max ($this->_barheights); $ruler _h = $this->_h-$this->_paddingtop-$this->_paddingbottom; Ruler total height $stander _h = $ruler _h-($ruler _H/11);  Ruler 10 The height of the equal $i = 0; foreach ($this,_barheights as $val) {$h = ($stander _h/$max _h) * $VAL;   $x = $this->_paddingleft + ($every _w* $i) + (($every _w-($barL *1.35)/2);   $y = $this->_h-$this->_paddingbottom + 10-$h;   $t _color = $this->_barcolors[$i];   $b _color = $this->_barcolors[$i];        $s _color = $this->_barcolors[$i];   $rgb = $this->getrgb ($this->_barcolors[$i]);   $R = $rgb [' R '] * 0.7;   $G = $rgb [' G '] * 0.7;      $B = $rgb [' B '] * 0.7; $c 1 = $R > 0?   Dechex ($R): ' 00 '; $c 2 = $G > 0?   Dechex ($G): ' 00 '; $c 3 = $B > 0?     Dechex ($B): ' 00 ';   $t _color = $b _color; $s _color = $c 1. $c 2.     $c 3;   $SingleBar = new Singlebar ($x, $y, $h, $barL);   $SingleBar->draw ($this->image, $t _color, $b _color, $s _color);  $i + +;  }} Public Function Drawtitle () {if (Empty ($this->_title)) {return;  } $font = 5;  $font _w = Imagefontwidth ($font);  $len = strlen ($this->_title);  $x = ($this->_w + $this->_paddingleft-$this->_paddingright)/2; $x-= ($len* $font _w)/2;  $y = ($this->_paddingtop-$font _w)/2 + 12;  Imagestring ($this->image, $font, $x, $y, $title, 0x000000);  Imagettftext ($this->image, 0, $x, $y, 0x000000, Default_font_path, $this->_title);  } public Function Drawlables () {$x 1 = $this->_paddingleft-5;  $y 1 = $this->_h-$this->_paddingbottom + 20;  $x 2 = $this->_w-$this->_paddingright;  $y 2 = $this->_h-10;  Imagefilledrectangle ($this->image, $x 1, $y 1, $x 2, $y 2, 0XFFFFFF);  Imagerectangle ($this->image, $x 1, $y 1, $x 2, $y 2, 0x000000);  $space = 5;  $x = $x 1 + 3;  $y = $y 1 + 3;   foreach ($this->_bartexts as $key = + $val) {$color = $this->_barcolors[$key];   $rgb = $this->getrgb ($color);   $BG = Imagecolorallocate ($this->image, $rgb [' R '], $rgb [' G '], $rgb [' B ']); Imagefilledrectangle ($this->image, $x, $y, $x +12, $y +12, $BG); Painted 12*12 rectangular imagerectangle ($this->image, $x, $y, $x +12, $y +12, 0x000000); Draw 12*12 Rectangle Imagettftext ($this->image,0, $x +12+3, $y +12, 0x000000, Default_font_path, $val);   $x + = + $space + (strlen ($val) *8) + $space;   if ($x + (strlen ($val) *8) >= $this->_w-$this->_paddingleft-$this->_paddingright) {$x = $x 1 + 3;   $y = $y + 12 + 3; }}} Public function Resetpaddingbottom () {$ruler _w = $this->_w-$this->_paddingleft-$this->_paddingr  ight;  $label _w = $this->getlabletotalwidth ();  $lines = ceil ($label _w/$ruler _w);  $h = * $lines + (3 * ($lines + 1)) + 30;  return $h;  Public Function Resetheight () {$padding _bottom = $this->resetpaddingbottom ();  if ($this->_h-$padding _bottom < 222) {return 222 + $padding _bottom;  } return $this->_h;  Public Function Getlabletotalwidth () {$counts = count ($this->_bartexts);  $space = 5;  $total _len = 0;  foreach ($this->_bartexts as $val) {$total _len + = strlen ($val);  } $tx _w = ($total _len * 9) + ((3 + + $space) * $counts);  return $TX _w; } public Function SETBG ($color) {$this->_bgcolor = $color;  The Public Function Settitle ($title) {$this->_title = $title;  } public Function SetColor () {$ar = array (' FF ', ' xx ', ' "'", ' "'", ' "", ' cc ');  $color = Array (); for ($i =0; $i <6; $i + +) {for ($j =0; $j <6; $j + +) {for ($k =0; $k <6; $k + +) {$color [] = $ar [$i]. $ar [$j ] .   $ar [$k];  }}} $color 2 = array ();  for ($i =1; $i <216; $i + = 4) {$color 2[] = $color [$i];  } return $color 2;  Public Function getRGB ($color) {$ar = array ();  $color = Hexdec ($color);  $ar [' R '] = ($color >>16) & 0xFF;  $ar [' G '] = ($color >>8) & 0xFF;  $ar [' B '] = ($color) & 0xFF;  return $ar; }}/***/$bar = new Bar (+, (+, +, +, +, +), array (' AAAAA ', ' bbbbb ', ' ccccc ', ' ddddd ', ' eeeeee ', ' FFFFFF ', ' ggggggg ', ' hhhhhhhhh '); $bar->settitle (' Create the perfect histogram! '); $bar->stroke (); /***/?>

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