最终的输出应该是这样的图像(HELLO WORLD)绘制文本: PHP GD如何通过线
下面是我在做什么: -
$im = imagecreate(400,400);
$txtcol = imagecolorallocate($im, 0xFF, 0x00, 0x00);
$size = 20;
$txt = 'DUMMY TEXT';
$font = './font/Capriola-Regular.ttf';
/*two points for base line*/
$x1 = 50; $x2 = 300;
$y1 = 150; $y2 = 170;
/*bof finding line angle*/
$delta_x = $x2-$x1;
$delta_y = $y2-$y1;
$texangle = (rad2deg(atan2($delta_y,$delta_x)) * 180/M_PI)-360;
/*eof finding the line angle*/
imageline($im,$x1,$y1,$x2,$y2,$txtcol); //Drawing line
imagettftext($im, $size, $texangle, $x1, $y1, $txtcol, $font, $txt); // Drawing text over line at line's angle
和电流输出像:
任何人能告诉什么错我的代码?
感谢
'imagettftext'中定义了$ ty吗? – webnoob 2013-02-15 12:52:19
对不起,不是$ ty其$ y1 @webnoob感谢通知我:) – ROBIN 2013-02-15 13:15:32
我认为问题是找到线角度。你认为@webnoob – ROBIN 2013-02-15 13:23:53