Anchors

(Example from: The Annotated VRML 2.0 Reference Manual)
#VRML V2.0 utf8
Group { children [
  Transform {
    translation -5 0 0
    children Anchor {
      url "http://www.barbie.web/~barbie/dollhouse.wrl"
      description "Link to Barbie's Home Page pad"
      children Shape {
        appearance DEF A1 Appearance {
	  material Material {
	    diffuseColor 1 1 1  ambientIntensity 0.33
	    specularColor 1 1 1  shininess 0.5
	  }
	}
        geometry Box {}
      }
    }
  }
  Transform {
    children Anchor {
      url "#NiceView"
      description "Link to a nice view of the scene"
      children Shape {
        appearance USE A1
        geometry Sphere {}
      }
    }
  }
  Transform {
    translation 5 0 0
    children Anchor {
      url "http://www.barbie.web/~barbie#NiceView"
      parameter "target=name_of_frame"
      description "Link to a nice view of the scene"
      children Shape {
        appearance USE A1
        geometry Cone {}
      }
    }
  }
  DEF NiceView Viewpoint {
    position 0 0 -20
    orientation 0 0 -1 0
    description "NiceView"
  }
]}

  


mrl