#VRML V2.0 utf8  
##<load file=web3d-navigate>

##:@+ simple nurb

##@ scene
NavigationInfo {
	type ["EXAMINE","ANY"]

}

DEF Viewpoint1 Viewpoint {
fieldOfView 0.844104
orientation 0 0 1 0
position 0 0 4.00859
description "Viewpoint1"
}

##@ extern proto

EXTERNPROTO NurbsSurface [
field        SFInt32  uDimension 
field        SFInt32  vDimension 
field        MFFloat  uKnot  
field        MFFloat  vKnot 
field        SFInt32  uOrder 
field        SFInt32  vOrder 
exposedField MFVec3f  controlPoint
exposedField MFFloat  weight
exposedField SFInt32  uTessellation
exposedField SFInt32  vTessellation
exposedField SFNode   texCoord
field        SFBool   ccw
field        SFBool   solid
]
[
	"urn:inet:blaxxun.com:node:NurbsSurface",
	"nurbs.wrl#NurbsSurface"  # for local testing
	"http://www.blaxxun.com/vrml/protos/nurbs.wrl#NurbsSurface"
]

##@ transform root

Transform {
translation -1.5 -1.5 0
children [
Shape { 
	geometry DEF nurb NurbsSurface {
		uOrder 4 
		vOrder 4 
		uDimension 4 
		vDimension 4 
		uKnot [ 0, 0, 0, 0, 3, 3, 3, 3]
		vKnot [ 0, 0, 0, 0, 3, 3, 3, 3]

##@ nurb surface control points
		controlPoint[
			0 0 0, 1 0 0, 2 0 0, 3 0 0,
		        0 1 0, 1 1 0, 2 1 0, 3 1 0, 
			0 2 0, 1 2 0, 2 2 0, 3 2 0, 
			0 3 0, 1 3 0, 2 3 0, 3 3 0]

		weight [
			1.000000, 1.000000, 1.000000,
			1.000000, 1.000000, 1.000000,
			1.000000, 1.000000, 1.000000,
			2.000000, 1.000000, 1.000000,
			1.000000, 1.000000, 1.000000, 1.000000,]
 		}
##@ appearance
appearance Appearance {
   material Material { diffuseColor 0 0 1 emissiveColor 1 0 0}  # Blue 
   texture ImageTexture {url "alchemy.gif"}
	#		textureTransform TextureTransform {
	#				center 0.6 0
	#				translation .5 .5
	#				scale 1 1
	#			}
     			}
}	
]
}

##</>