PHP绘制3D图形 之 自定义图形及矢量图.doc

上一篇进行了一些简单3D图形实例，本篇介绍自定义及矢量图实例。首先绘制一个三尖角星体，分别由“前面”，“后面”和三个“侧面”组成。自定义多边形代码：setColor(new Image_3D_Color(255, 255, 255);/创建光源$light1 = $image-createLight(light,array(-50, -50, -50);$light1-setColor(new Image_3D_Color(100, 250, 100);$light2 = $image-createLight(light,array(50, -50, 0);$light2-setColor(new Image_3D_Color(100, 100, 250);$light3 = $image-createLight(light,array(50, 50, 0);$light3-setColor(new Image_3D_Color(50, 0, 100);/创建多边形数组$polygons = array();/前面点坐标$polygons = array( array(0, -120, 0), array(-18, -12, 0), array(-86, 48, 0), array(0, 18, 0), array(86, 48, 0), array(18, -12, 0) );/后面点坐标$polygons = array( array(0, -120, 60), array(-18, -12, 60), array(-86, 48, 60), array(0, 18, 60), array(86, 48, 60), array(18, -12, 60) );/三侧面点坐标$polygons = array( array(0, -120, 0), array(-18, -12, 0), array(-86, 48, 0), array(-86, 48, 60), array(-18, -12, 60),array(0, -120, 60) );$polygons = array( array(-86, 48, 0), array(0, 18, 0), array(86, 48, 0), array(86, 48, 60), array(0, 18, 60), array(-86, 48, 60) );$polygons = array( array(86, 48, 0), array(18, -12, 0), array(0, -120, 0), array(0, -120, 60), array(18, -12, 60),array(86, 48, 60) );/绘制3D图像foreach ($polygons as $poly) $points = array(); foreach ($poly as $set) $points = new Image_3D_Point($set0, $set1, $set2); $p = $image-createObject(polygon, $points); $p-setColor(new Image_3D_Color(255, 255, 255);$image-transform($image-createMatrix(Rotation, array(-10, -25, -15);$image-createRenderer(perspectively);$image-createDriver(gd);$image-render(300, 300, anim.png);echo ;?效果图：矢量图 可缩放的矢量图形（Scalable Vector Graphics，SVG）文件格式是组成2D图像的矢量XML文件。 在2001年，W3C对该格式进行了标准化，但其在Web方面的使用因为浏览器显示SVG文件的牵制而不很流行。 目前，最好的选择是Firefox它有内置的SVG支持，或具有Adobe SVG插件的IE。下面通过一个实例生成SVG文件。代码：setColor(new Image_3D_Color(255, 255, 255);for ($x=0; $x 4; $x+) for ($y=0; $y 4; $y+) for ($z=0; $z createObject(sphere, array(r = 25, detail = 3); /后面150用于设置图像透明度 $sphere-setColor(new Image_3D_Color(255, 162, 0, 150); $sphere-transform($image-createMatrix(Move, array($x * 75) + 50, $y * 75, $z * 75); $sphere-transform($image-createMatrix(Rotation, array($rot_x, $rot_y, $rot_z); $image-transform($image-createMatrix(Move, array(-225, -100, 0);$image-createRenderer(perspectively);/使用SVG驱动生成矢量