} } }

    PHP哄骗GD库画曲线

    添加时间:2013-7-23 点击量:

    结果:

    PHP代码

    <?php 
    
    Header(Content-type: image/png;Charset:utf-8); //声明

    ¥im = imagecreate(400,200);

    //get color.
    ¥bg = imagecolorallocate(¥im,0,0,0);
    ¥red = imagecolorallocate(¥im,255,0,255);
    ¥white = imagecolorallocate(¥im,255,255,255);

    ¥arrowX = array(394,97,399,100,394,103);
    ¥arrowY = array(197,5,200,0,203,5);

    //画曲线
    for(¥i=0;¥i<380;¥i+=0.1){
    ¥x = ¥i/20;
    ¥y = sin(¥x);
    ¥y = 100 + 40¥y;
    imagesetpixel(¥im,¥i+10,¥y,¥red);
    }

    //画X轴和Y轴
    imageline(¥im,0,100,394,100,¥white);
    imageline(¥im,200,5,200,200,¥white);

    //画坐标title
    imagestring(¥im,4,350,110,XShaft,¥white);

    //画箭头
    imagefilledpolygon(¥im,¥arrowX,3,¥white);
    imagefilledpolygon(¥im,¥arrowY,3,¥white);

    imagepng(¥im);
    imagedestroy(¥im);

    ?>
    容易发怒的意思就是: 别人做了蠢事, 然后我们代替他们, 表现出笨蛋的样子。—— 蔡康永
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