PHPはヒストグラムを描画します-PHPチュートリアル-php.cn

/***
* @project 棒グラフプログラム
* @license GPL
* @package
* @file GrapBar.php
* @date 2007-4-3
* @version 1.0
* @最終更新日
* 棒グラフの定義 (縦棒グラフ) クラス
*
* 注意: 使用する前に、フォントパスが存在し、アクセスが許可されていることを確認してください。エラーが発生した場合は、php.ini 設定の open_basedir 項目も確認してください。そのようなパスがない場合は、追加してください。
*
* レポートなどのためのインテリジェントな棒グラフプログラム
*
** が含まれています。*/
define("DEFAULT_FONT_PATH", "c:/windows/fonts/simhei.ttf");
クラス SingleBar
{
private $_x;
プライベート $_y;
プライベート $_h;
パブリック $_l = 50;
プライベート $_w = null;
プライベート $_srcPoints = array();
プライベート $_points = array();
public function __construct($x, $y, $h, $l = 50, $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))
);
}
パブリック関数 getPoints()
{
$points = array();
foreach($this->_srcPoints as $key => $val)
{
$points[] = $val[0];
$points[] = $val[1];
}
$ポイントを返します;
}
public function getTopPoints()
{
return array_slice($this->_points, 0, 8); //顶坐标
}
public function getBelowPoints()
{
return array_merge(array_slice($this->_points, 0, 2), array_slice($this->_points, 8, 4), array_slice($ this->_points, 2, 2)); //下坐标
}
public function getRightSidePoints()
{
return array_merge(array_slice($this->_points, 2, 2), array_slice($this->_points, 10, 4), array_slice($ this->_points, 4, 2)); //右侧坐标
}
public functiondraw($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, $top_color); //画顶面
imagepolygon($image, $this->getTopPoints(), 4, $borderColor); //画顶面边線
imagefilledpolygon($image, $this->getBelowPoints(), 4, $below_color); //画下面
imagepolygon($image, $this->getBelowPoints(), 4, $borderColor); //画下面边線
if ($type == 'LEFT')
{
imagefilledpolygon($image, $this->getRightSidePoints(), 4, $side_color); //画右面
imagepolygon($image, $this->getRightSidePoints(), 4, $borderColor); //画面边線
}
}
public function getRGB($color)
{
$ar = array();
$color = hexdec($color);
$ar['R'] = ($color>>16) & 0xff;
$ar['G'] = ($color>>8) & 0xff;
$ar['B'] = ($color) & 0xff;
$ar を返します。
}
}
クラス Bar
{
プライベート $_W;
プライベート $_H;
プライベート $_bgColor = "ffffff";
プライベート $_barHeights = array();
プライベート $_barTexts = array();
プライベート $_barColors = array();
公開 $_title;
public $_paddingTop = 30;
public $_paddingBottom = 100;
public $_paddingLeft = 45;
public $_paddingRight = 2;
パブリック $_barL = 50;
公開 $image;
public function __construct($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);
}
パブリック関数ストローク()
{
$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);
}
パブリック関数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);
$x1 = $paddingLeft;
$y1 = $paddingTop;
$x2 = $img_w - $paddingRight;
$y2 = $img_h - $paddingBottom;
imagerectangle($this->image, $x1, $y1, $x2, $y2, $border_color);
imagefilledpolygon($this->image, array($x1-5,$y1+10, $x1-5,$y2+10, $x1,$y2, $x1,$y1), 4, $side_bg) ;
imagepolygon($this->image, array($x1-5,$y1+10, $x1-5,$y2+10, $x1,$y2, $x1,$y1), 4, $border_color) ;
imagefilledpolygon($this->image, array($x1-5,$y2+10, $x2-5,$y2+10, $x2,$y2, $x1,$y2), 4, $side_bg) ;
imagepolygon($this->image, array($x1-5,$y2+10, $x2-5,$y2+10, $x2,$y2, $x1,$y2), 4, $border_color) ;
imageline($this->image, $x1, $y2, $x2, $y2, $side_bg2);
$total_h = $img_h - $paddingTop - $paddingBottom;
$every_h = $total_h/11;
for($i=1; $i {
imageline($this->image, $x1, $y1+($every_h*$i), $x2, $y1+($every_h) *$i)、$line_color); //画ネットワーク
}
$max_h = max($this->_barHeights);
for($i=1; $i {
$value = $max_h - (($max_h/10)*($i-1));
$value = strval($value);
$str_w = strlen($value)*5;
imageline($this->image, $x1-5-3, $y1+10+($every_h*$i), $x1-3+1, $y1+10+($every_h*$i), $dial_color); //画刻度線
imagestring($this->image, 3, $x1-5-3-$str_w-1, $y1+10+($every_h*$i)-5, $value, 0x000000);
}
}
パブリック関数drawBars()
{
$counts = count($this->_barHeights);
if (empty($this->_barColors))
{
$color = $this->setColor();
$this->_barColors = array_slice($color, 0, $counts);
//シャッフル($this->_barColors);
}
$every_w = ($this->_W - $this->_paddingLeft - $this->_paddingRight)/$counts; //每一段宽
$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; //标尺总高さ
$stander_h = $ruler_h - ($ruler_h/11); //标尺10等分の高さ
$i = 0;
foreach ($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;
$c1 = $R > 0 ?デチェック($R) : '00';
$c2 = $G > 0 ? dechex($G) : '00';
$c3 = $B > 0 ? dechex($B) : '00';
$t_color = $b_color;
$s_color = $c1。 $c2 。 $c3;
$SingleBar = 新しい SingleBar($x, $y, $h, $barL);
$SingleBar->draw($this->image, $t_color, $b_color, $s_color);
$i++;
}
}
public functiondrawTitle()
{
if (empty($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, 12, 0, $x, $y, 0x000000, DEFAULT_FONT_PATH, $this->_title);
}
パブリック関数drawLables()
{
$x1 = $this->_paddingLeft - 5;
$y1 = $this->_H - $this->_paddingBottom + 20;
$x2 = $this->_W - $this->_paddingRight;
$y2 = $this->_H - 10;
//imagefilledrectangle($this->image, $x1, $y1, $x2, $y2, 0xffffff);
imagerectangle($this->image, $x1, $y1, $x2, $y2, 0x000000);
$space = 5;
$x = $x1 + 3;
$y = $y1 + 3;
foreach ($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, $bg); //绘12*12の四角形
imagerectangle($this->image, $x, $y, $x+12, $y+12, 0x000000); //绘12*12の四角形
imagettftext($this->image, 12, 0, $x+12+3, $y+12, 0x000000, DEFAULT_FONT_PATH, $val);
$x += 12 + $space + (strlen($val)*8) + $space;
if ($x + (strlen($val)*8) >= $this->_W - $this->_paddingLeft - $this->_paddingRight)
{
$x = $x1 + 3;
$y = $y + 12 + 3;
}
}
}
パブリック関数resetPaddingBottom()
{
$ruler_w = $this->_W - $this->_paddingLeft - $this->_paddingRight;
$label_w = $this->getLableTotalWidth();
$lines = ceil($label_w / $ruler_w);
$h = 12 * $lines + (3 * ($lines + 1)) + 30;
$h を返します;
}
パブリック関数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) + ((12 + 3 + $space) * $counts);
$tx_w を返します;
}
public function setBg($color)
{
$this->_bgColor = $color;
}
public function setTitle($title)
{
$this->_title = $title;
}
public function setColor()
{
$ar = array('ff', '00', '33', '66', '99', 'cc');
$color = array();
for ($i=0; $i {
for ($j=0; $j {
for($k=0; $k {
$color[] = $ar[$i] . $ar[$j] 。 $ar[$k]; $color2 = array();
for ($i=1; $i {
$color2[] = $color[$i];
}
$color2 を返します。
}
パブリック関数 getRGB($color)
{
$ar = array();
$color = hexdec($color);
$ar['R'] = ($color>>16) & 0xff;
$ar['G'] = ($color>>8) & 0xff;
$ar['B'] = ($color) & 0xff;
$ar を返します。
}
}
/***/
$bar = new Bar(500, 300, array(600, 300, 30, 500, 400, 250, 350, 360), array('AAAAA', 'BBBBB') 、'CCCCC'、'DDDDD'、'EEEEEE'、'FFFFFF'、'GGGGGG'、'HHHHHHHHH'));
$bar->setTitle('打造完美柱状態图!');
$bar->ストローク();
/***/
?>
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