1 |
<?xml version="1.0" encoding="UTF-8"?>
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2 |
<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.3//EN" "https://www.web3d.org/specifications/x3d-3.3.dtd">
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3 | <X3D profile='Interchange' version='3.3' xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance' xsd:noNamespaceSchemaLocation='https://www.web3d.org/specifications/x3d-3.3.xsd'> |
4 | <head> |
5 | <component level='3' name='NURBS'/> |
6 | <meta name='title' content='NurbsSwungSurfaceExample.x3d'/> |
7 | <meta name='description' content='X3D Architecture example: NurbsSwungSurface demonstration.'/> |
8 | <meta name='creator' content='Doug Sanden and Don Brutzman'/> |
9 | <meta name='created' content='13 April 2022'/> |
10 | <meta name='modified' content='22 November 2023'/> |
11 | <meta name='Image' content='NurbsSwungSurfaceExample.png'/> |
12 | <meta name='specificationSection' content='X3D Architecture, 27 NURBS component, 27.4.11 NurbsSwungSurface'/> |
13 | <meta name='specificationUrl' content='https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/components/nurbs.html#NurbsSwungSurface'/> |
14 | <meta name='identifier' content='https://www.web3d.org/x3d/content/examples/Basic/X3dSpecifications/NurbsSwungSurfaceExample.x3d'/> |
15 | <meta name='generator' content='X3D-Edit 4.0, https://savage.nps.edu/X3D-Edit'/> |
16 | <meta name='license' content='../license.html'/> |
17 | </head> |
18 | <Scene> |
19 | <Group> |
20 | <Shape> |
21 | <LineSet vertexCount='2' containerField='geometry'> |
22 | <Coordinate point='0 0 0 4 0 0'/> |
23 | </LineSet> |
24 | <Appearance> |
25 | <Material emissiveColor='1 0 0'/> |
26 | <LineProperties linewidthScaleFactor='4' containerField='lineProperties'/> |
27 | </Appearance> |
28 | </Shape> |
29 | <Shape> |
30 | <LineSet vertexCount='2' containerField='geometry'> |
31 | <Coordinate point='0 0 0 0 4 0'/> |
32 | </LineSet> |
33 | <Appearance> |
34 | <Material emissiveColor='0 1 0'/> |
35 | <LineProperties linewidthScaleFactor='4' containerField='lineProperties'/> |
36 | </Appearance> |
37 | </Shape> |
38 | <Shape> |
39 | <LineSet vertexCount='2' containerField='geometry'> |
40 | <Coordinate point='0 0 0 0 0 4'/> |
41 | </LineSet> |
42 | <Appearance> |
43 | <Material emissiveColor='0 0 1'/> |
44 | <LineProperties linewidthScaleFactor='4' containerField='lineProperties'/> |
45 | </Appearance> |
46 | </Shape> |
47 | </Group> |
48 | <Background skyColor='1 1 1' transparency='1.0'/> |
49 | <Viewpoint/> |
50 | <Transform> |
51 | <Shape> |
52 | <Appearance> |
53 | <Material transparency='.5'/> |
54 | </Appearance> |
55 | <NurbsSwungSurface containerField='geometry'> |
56 | <NurbsCurve2D containerField='profileCurve' controlPoint='.5 .25 0 .25 0 1 .25 1 .25 2 0 2' knot='0 0 0 .25 .5 .75 1 1 1' tessellation='8' weight='1 1 1 1 1 1'/> |
57 | <NurbsCurve2D containerField='trajectoryCurve' controlPoint='2 -.5 1.5 -.25 1.5 -.25 1.5 1.0 2.0 1.5 2.0 2.0 1.0 2.0 1.0 1.5 -.25 1.5 -.25 2.0 -.5 2.0' knot='0 0 0 1 2 3 4 5 6 7 8 9 9 9' tessellation='8' weight='1 1 1 1 1 1 1 1 1 1 1'/> |
58 | </NurbsSwungSurface> |
59 | </Shape> |
60 | </Transform> |
61 | <Transform> |
62 | <Shape> |
63 | <Appearance> |
64 | <Material DEF='CYAN' diffuseColor='0 .8 .8'/> |
65 | <LineProperties linewidthScaleFactor='6' containerField='lineProperties'/> |
66 | </Appearance> |
67 | <!-- To convert a NurbsCurve2D control curve to a displayable NurbsCurve 1. rename element NurbsCurve2D -> NurbsCurve 2. cut controlPoint= field and paste into child node CoordinateDouble point field 3. edit point field adding a 3rd (z) = 0 to each xy point --> |
68 | <NurbsCurve DEF='PROFILE' knot='0 0 0 .25 .5 .75 1 1 1' weight='1 1 1 1 1 1' containerField='geometry'> |
69 | <CoordinateDouble containerField='controlPoint' point='.5 .25 0 0 .25 0 0 1 0 .25 1 0 .25 2 0 0 2 0'/> |
70 | </NurbsCurve> |
71 | </Shape> |
72 | <Shape> |
73 | <Appearance> |
74 | <Material DEF='MAGENTA' diffuseColor='.8 0 .8'/> |
75 | <LineProperties linewidthScaleFactor='6' containerField='lineProperties'/> |
76 | </Appearance> |
77 | <NurbsCurve DEF='TRAJECTORY' knot='0 0 0 1 2 3 4 5 6 7 8 9 9 9' weight='1 1 1 1 1 1 1 1 1 1 1' containerField='geometry'> |
78 | <CoordinateDouble containerField='controlPoint' point='2 -.5 0 1.5 -.25 0 1.5 -.25 0 1.5 1.0 0 2.0 1.5 0 2.0 2.0 0 1.0 2.0 0 1.0 1.5 0 -.25 1.5 0 -.25 2.0 0 -.5 2.0 0'/> |
79 | </NurbsCurve> |
80 | </Shape> |
81 | </Transform> |
82 | </Scene> |
83 | </X3D> |
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