PHP Drawing Bar Chart

/*** * @project Bar Graph Program * @license GPL * @package * @file grapbar.php * @date 2007-4-3 * @version 1.0 * @last Modified * Define Column chart (column chart) class * * Note that before using, make sure that the font path exists and allow access, if there is an error, also check the Open_basedir entry in the php.ini configuration, if this path is not added, or set in the program contains * * Intelligent Bar Chart Program 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 = a, $w = null) { $this->_x = $x; $this->_y = $y; $this->_h = $h; $this->_l = $l; $this->_w = $w; $this->_srcpoints = $this->getsrcpoints (); $this->_points = $this->getpoints (); } Public Function getsrcpoints () { Return Array ( Array ($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->_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 getbelowpoints () { Return Array_merge (Array_slice ($this->_points, 0, 2), Array_slice ($this->_points, 8, 4), Array_slice ($this- _points, 2, 2)); Bottom coordinate } Public Function getrightsidepoints () { Return Array_merge (Array_slice ($this->_points, 2, 2), Array_slice ($this->_points, ten, 4), Array_slice ($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, $top _color); Draw the top face Imagepolygon ($image, $this->gettoppoints (), 4, $borderColor); Draw Top Edge Imagefilledpolygon ($image, $this->getbelowpoints (), 4, $below _color); Draw below Imagepolygon ($image, $this->getbelowpoints (), 4, $borderColor); Draw the bottom edge if ($type = = ' Left ') { Imagefilledpolygon ($image, $this->getrightsidepoints (), 4, $side _color); Draw right Side Imagepolygon ($image, $this->getrightsidepoints (), 4, $borderColor); Draw side edges } } Public Function getRGB ($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), $dial _color); Draw a tick mark Imagestring ($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 is 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); Height of ruler 10 $i = 0; foreach ($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, $BG); Draw a 12*12 Rectangle Imagerectangle ($this->image, $x, $y, $x +12, $y +12, 0x000000); Draw a rectangular box of 12*12 Imagettftext ($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->_paddingright; $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 = $color; } Public Function Settitle ($title) { $this->_title = $title; } Public Function SetColor () { $ar = Array (' FF ', ' xx ', ' + ', ' n ', ' A ', ' 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 (+, +,--), Array (' AAAAA ', ' bbbbb ', ' ccccc ', ' ddddd ', ' eeeeee ', ' FFFFFF ', ' ggggggg ', ' hhhhhhhhh '); $bar->settitle (' Create the perfect histogram! '); $bar->stroke (); /***/ ?> Copy Code

Bar chart, PHP

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