# imagepolygon

(PHP 4, PHP 5)

imagepolygon画一个多边形

### 说明

bool imagepolygon ( resource \$image , array \$points , int \$num_points , int \$color )

imagepolygon() 在图像中创建一个多边形。points 是一个 PHP 数组，包含了多边形的各个顶点坐标，即 points[0] = x0，points[1] = y0，points[2] = x1，points[3] = y1，以此类推。num_points 是顶点的总数。

Example #1 imagepolygon() 例子

``` <?php// create a blank image\$image = imagecreatetruecolor(400, 300);// fill the background color\$bg = imagecolorallocate(\$image, 0, 0, 0);// choose a color for the polygon\$col_poly = imagecolorallocate(\$image, 255, 255, 255);// draw the polygonimagepolygon(\$image,             array (                    0, 0,                    100, 200,                    300, 200             ),             3,             \$col_poly);// output the pictureheader("Content-type: image/png");imagepng(\$image);?> ```

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• getimagesize
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• imageantialias
• imagearc
• imagechar
• imagecharup
• imagecolorallocate
• imagecolorallocatealpha
• imagecolorat
• imagecolorclosest
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• imagecolorexactalpha
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• imagecolorresolve
• imagecolorresolvealpha
• imagecolorset
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• imagecolorstotal
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• imageconvolution
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• imagecopyresampled
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• imagecreate
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• imagecreatefromgd2part
• imagecreatefromgif
• imagecreatefromjpeg
• imagecreatefrompng
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• imagecreatetruecolor
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• imagefilledpolygon
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• imagepalettecopy
• imagepng
• imagepolygon
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• imagepsencodefont
• imagepsextendfont
• imagepsfreefont
• imagepsslantfont
• imagepstext
• imagerectangle
• imagerotate
• imagesavealpha
• imagesetbrush
• imagesetpixel
• imagesetstyle
• imagesetthickness
• imagesettile
• imagestring
• imagestringup
• imagesx
• imagesy
• imagetruecolortopalette
• imagettfbbox
• imagettftext
• imagetypes
• imagewbmp
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• image_type_to_extension
• image_type_to_mime_type
• iptcembed
• iptcparse
• jpeg2wbmp
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