The WWWAnchor and WWWInline Nodes

Here we have the addition of some nifty nodes! The first one, the WWWAnchor node, allows you to 'attach' a URL to one of your shapes. When the user clicks on the shape, he or she will be 'transported' to that world. You may specify non-.wrl URL's, but be aware that not every VRML browser will send a non-.wrl file to the HTML browser. For example, below you see that we've attached a URL to the wooden sphere in our world. Clicking on the sphere will send you to Planet 9's Virtual San Francisco (a .wrl file). However, if, say, an .html file is attached to the sphere, some VRML browsers will let the HTML browser handle the file. The syntax for the node is fairly straightforward. Below we see that the name field is where the URL goes, map can be either NONE or POINT. If POINT is used, coordinates of the point on the object the user clicks will be added to the URL in the name field. The syntax for the addition is ?X, Y, Z. The WWWInline node allows you to add other .wrl files into your world. Thus, if you see a model on the Internet that you'd like in your world, specify the URL for the file in the name field. Here we've added a LARGE model of the Enterprise (as seen in Star Trek: The Next Generation) behind our shapes.

#VRML V1.0 ascii

Separator {
	
	PerspectiveCamera {
		position	0 30 240
		orientation 	0 0 -1 0
		focalDistance	5
		heightAngle	.785
	} #PerspectiveCamera	

	SpotLight {
		on 		TRUE
		intensity	.5
		color 		1 0 0
		location 	0 0 120		
		direction 	0 0 -1
	} #SpotLight	

	Info {
		string "This is a cool world!!"
	} #Info

	Material {
		diffuseColor 1 0 1
		shininess 0.2
		transparency 0
	} #Material
	
	MaterialBinding {
		value 	DEFAULT	
	} #MaterialBinding

	FontStyle {
		size 	15
		family  TYPEWRITER
		style	NONE
	} #FontStyle

	AsciiText {
		string 	"This is a cool demo world!"
		spacing	1
		justification CENTER
		width 0
	} #AsciiText
	
	Separator {
		Translation {
			translation 0 15 -500
		} #Translation
		WWWInline {
			name "1701d.wrl"
		} #WWWInline
	} #Separator

	DEF Cone1 Separator {
				
		Translation {
			translation 0 30 0
		} #Translation

		Cone {
			parts	ALL
			bottomRadius	15
			height		30
		} #Cone

	} #Cone1 Separator

	DEF Cube1 Separator {

		Transform {
			rotation 0 1 0 .7					
		} #Transform
		
		Translation {
			translation -45 30 0
		} #Translation
		
		Cube {
			width	30
			height	30
			depth 	30
		} #Cube
	
	} #Cube1 Separator

	DEF Cylinder1 Separator {

		Translation {
			translation 45 30 0
		} #Translation

		Cylinder {
			parts ALL
			radius 15
			height 30
		} #Cylinder
	
	} #Cylinder1 Separator
    
    WWWAnchor {
      name "http://www.planet9.com/worlds/vrsf.wrl"
      map NONE

	DEF Sphere1 Separator {
		
		Texture2 {
			filename "wood4.jpg"
		}

		Translation {
			translation 0 75 0
		} #Translation

		Sphere {
			radius 15
		}#Sphere

	} #Sphere1 Separator
    
    } #WWWAnchor
	
	DEF FaceDiamond Separator {

		DEF DiamondCoords Coordinate3 {
			point [
			0 75 25,
			12.5 62.5 12.5,
			12.5 62.5 37.5,
			-12.5 62.5 37.5,
			-12.5 62.5 12.5,
			0 50 25,
			]
		} #DiamondCoords Coordinate3
				
		USE DiamondCoords

		IndexedFaceSet {
			coordIndex [
				0, 1, 2, -1,
				0, 1, 4, -1,
				0, 4, 3, -1,
				0, 3, 2, -1,
				5, 1, 2, -1,
				5, 1, 4, -1,
				5, 4, 3, -1,
				5, 3, 2, -1,
				]
			
		} #IndexedFaceSet

	} #FaceDiamond Separator
		
	DEF LineDiamond Separator {

		Translation {
			translation 0 75 0
		} #Translation
		USE DiamondCoords	
			
		IndexedLineSet {
			coordIndex [
			  0, 1, -1,
			  0, 2, -1,
			  0, 3, -1,
			  0, 4, -1, 
			  4, 1, -1,
			  1, 2, -1,
			  2, 3, -1,
			  3, 4, -1,
			  5, 1, -1,
			  5, 2, -1,
			  5, 3, -1,
			  5, 4, -1
	                ]
			
		} #IndexedLineSet
	} #DiamondLine Separator
} #Separator

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Page designed by Pete Clark
Last updated on Feb. 11, 1996.
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