86 php 绘图体系2

1.画圆柱

//1.画布//默认是黑色$img = imagecreatetruecolor(400,300);
$white = imagecolorallocate($img,255,255,255);
imagefill($img,0,0,$white);

//2.画扇形//创建3个颜色$red = imagecolorallocate($img,255,0,0);
$blue = imagecolorallocate($img,0,0,128);
$gray = imagecolorallocate($img,192,192,192);
//暗色$dardred = imagecolorallocate($img,144,0,0);
$dardblue = imagecolorallocate($img,0,0,80);
$dardgray = imagecolorallocate($img,144,144,144);

for($i=60;$i>=40;$i--){
    imagefilledarc($img,100,$i,100,60,0,35,$dardblue,IMG_ARC_PIE);
    imagefilledarc($img,100,$i,100,60,35,75,$dardgray,IMG_ARC_PIE);
    imagefilledarc($img,100,$i,100,60,75,360,$dardred,IMG_ARC_PIE);
}

//在上面加个盖，亮色
imagefilledarc($img,100,40,100,60,0,35,$blue,IMG_ARC_PIE);
imagefilledarc($img,100,40,100,60,35,75,$gray,IMG_ARC_PIE);
imagefilledarc($img,100,40,100,60,75,360,$red,IMG_ARC_PIE);

//输出图片
header('content-type:image/png');
imagepng($img);
imagedestroy($img);

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以上就介绍了86 php 绘图体系2，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。