用PHP动态生成虚拟现实VRML网页

  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,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。
  <?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;
  ?>