php: Image processing---three-dimensional pie chart

// 创建图像 $image = imagecreatetruecolor(600, 450); // 分配一些颜色 $white = imagecolorallocate($image, 0xFF, 0xFF, 0xFF); $gray = imagecolorallocate($image, 0xC0, 0xC0, 0xC0); $darkgray = imagecolorallocate($image, 0x90, 0x90, 0x90); $navy = imagecolorallocate($image, 0x00, 0x00, 0x80); $darknavy = imagecolorallocate($image, 0x00, 0x00, 0x50); $red = imagecolorallocate($image, 0xFF, 0x00, 0x00); $darkred = imagecolorallocate($image, 0x90, 0x00, 0x00); $green = imagecolorallocate($image, 0, 200, 0); //填充画布背景颜色； imagefill($image,0,0,$green); // 创建 3D 效果 for ($i = 180; $i > 150; $i--) { imagefilledarc($image, 250, $i, 300, 150, 0, 45, $darknavy, IMG_ARC_PIE); imagefilledarc($image, 250, $i, 300, 150, 45, 75 , $darkgray, IMG_ARC_PIE); imagefilledarc($image, 250, $i, 300, 150, 75, 360 , $darkred, IMG_ARC_PIE); } imagefilledarc($image, 250, 150, 300, 150, 0, 45, $navy, IMG_ARC_PIE); imagefilledarc($image, 250, 150, 300, 150, 45, 75 , $gray, IMG_ARC_PIE); imagefilledarc($image, 250, 150, 300, 150, 75, 360 , $red, IMG_ARC_PIE); // 输出图像 header('Content-type: image/png'); imagepng($image); imagedestroy($image);

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