用PHP动态生成虚拟现实VRML网页   

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　　多年前本人开始从事三维动画方面的学习，后学习了PHP，发现可以通过PHP动态生成VRML文档，有点类似于Generator动态生成Flash的方式。
由于VRML博大精深，这里只介绍一个简单的例子，还可以将各种VRML结点存入数据库中，这样的虚拟现实网页将……，爽！

下面是源程序。注意：在服务器上，要将让PHP处理wrl格式的文档，否则后果将是没有任何虚拟现实。本源程序直接存成wrl文件，在浏览器中要安装插件，可以到我的另一个主页上去下载：http://go.163.com/~sjtucaocao/

<?php header("Content-type: application/x-vrml");$txt="#VRML V2.0 utf8

DEF leftBox Transform
{
translation -5 0 0
children
[
Shape
{
appearance Appearance
{
material Material
{
diffuseColor 1 0 0
}
}
geometry Box{}
}
DEF SphereChild Shape
{
appearance Appearance
{
material Material
{
diffuseColor 1 0 1
}
}
geometry Sphere
{
radius 1.2
}
}
]
}

DEF rightBox Transform
{
translation 5 0 0
children
[
Shape
{
appearance Appearance
{
material Material
{
diffuseColor 0 0 1
}
}
geometry Box{}
}
]
}

DEF onoff Transform
{
translation 0 -1 0
children
[
Shape
{
appearance Appearance
{
material Material
{
diffuseColor 0 1 0
}
}
geometry Box{}
}
DEF TS TouchSensor{}
]
}

DEF S Script
{
eventIn SFBool isActive
eventOut MFNode child
field MFNode testNode USE SphereChild
url
"javascript:
function isActive(value)
{
if (value)
{
child=testNode;
}
}
"
}

ROUTE TS.isActive TO S.isActive
ROUTE S.child TO leftBox.removeChildren
ROUTE S.child TO rightBox.addChildren";echo $txt;
?>
   
  

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