The content of this article is the GD drawing process of PHP. Now I share it with everyone. Friends in need can take a look
<?php /** * GD库画图流程 * 1. 新建空白画布(指定宽高) * 2. 创建颜料 * 3. 画图形(椭圆,矩形,直线等),或写字 * 4. 输出/保存图形 * 5. 销毁画布(关闭画板) * 填充颜色注意事项: * 1.在画图之前填充的是整个背景色 * 2.在画图之后填充,需要找准对应的坐标以填充 * */ //1. 新建空白画布(指定宽高) $pic = imagecreatetruecolor(200, 300); //2. 创建颜料(RGB) $red = imagecolorallocate($pic, 255, 0, 0); $blur = imagecolorallocate($pic, 0,0,255); //3. 画图形(椭圆,矩形,直线等),或写字 imageellipse($pic, 100, 150, 200, 300, $red); //填充背景色(X Y 坐标) imagefill($pic, 200, 10, $blue); //4. 输出/保存图形 imagepng($pic , './t1.png'); //5. 销毁画布(关闭画板) imagedestroy($pic); ?>
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