| 1 |
<?xml version="1.0" encoding="UTF-8"?>
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| 2 |
<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 4.0//EN" "https://www.web3d.org/specifications/x3d-4.0.dtd">
|
| 3 | <X3D profile='Immersive' version='4.0' xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance' xsd:noNamespaceSchemaLocation='https://www.web3d.org/specifications/x3d-4.0.xsd'> |
| 4 | <head> |
| 5 | <meta name='title' content=' ExtrusionFigureX3dSpecification.x3d '/> |
| 6 | <meta name='description' content='X3D Extrusion spine-aligned cross-section plane (SCP) at a spine point. Modeled after Figure 13.5 in X3D Specification.'/> |
| 7 | <meta name='creator' content='Al Shaffer'/> |
| 8 | <meta name='created' content='4 February 2005'/> |
| 9 | <meta name='modified' content='28 September 2025'/> |
| 10 |
<meta name='Image' content='Extrusion.gif' />
|
| 11 | <meta name='specificationSection' content='X3D encodings, ISO/IEC 19776-1.3, Part 1: XML encoding, Figure 13.5 - Spine-aligned cross-section plane at a spine point.'/> |
| 12 | <meta name='specificationUrl' content='https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/components/geometry3D.html#f-Spine-alignedcross-section'/> |
| 13 | <meta name='identifier' content=' https://www.web3d.org/x3d/content/examples/Basic/X3dSpecifications/ExtrusionFigureX3dSpecification.x3d '/> |
| 14 | <meta name='generator' content='X3D-Edit 4.0, https://www.web3d.org/x3d/tools/X3D-Edit'/> |
| 15 | <meta name='license' content='../license.html'/> |
| 16 | </head> |
| 17 | <Scene> |
| 18 | <WorldInfo title='ExtrusionFigureX3dSpecification.x3d'/> |
| 19 | <Background groundColor='1 1 1' skyColor='1 1 1'/> |
| 20 | <Viewpoint description='X3D Specification Figure 13.5, Extrusion Spine-aligned Cross-section Plane (SCP)' orientation='1 0 0 -0.43' position='-0.5 5.5 12'/> |
| 21 | <Viewpoint description='Front view, Spine-aligned Cross-section Plane (SCP)' position='0 0 14'/> |
| 22 | <Viewpoint description='Overhead view, Spine-aligned Cross-section Plane (SCP)' orientation='1 0 0 -1.428899' position='0 14 2'/> |
| 23 | <Transform> |
| 24 | <!-- Draw partial coordinate axis. Code derived from CoordinateAxes.x3d by Don Brutzman, 21 January 2002 --> |
| 25 | <Transform DEF='HALF_COORD_AXIS'> |
| 26 | <Group> |
| 27 | <!-- Vertical Y arrow and labels --> |
| 28 | |
| 29 | <Transform translation='0 1 0'> |
| 30 | <Shape> |
| 31 |
<!-- Appearance
ARROW_APPEARANCE is a DEF node that has 1 USE node: USE_1 -->
<Appearance DEF='ARROW_APPEARANCE'> |
| 32 | <Material diffuseColor='0 1 .7'/> |
| 33 | </Appearance> |
| 34 | <Cylinder bottom='false' radius='.05' top='false'/> |
| 35 | </Shape> |
| 36 | </Transform> |
| 37 | <Transform translation='0 2 0'> |
| 38 | <Shape DEF='ARROW_POINTER'> |
| 39 | <Cone bottomRadius='.16' height='.4'/> |
| 40 | <Appearance USE='ARROW_APPEARANCE'/> |
| 41 | </Shape> |
| 42 | </Transform> |
| 43 | </Group> |
| 44 | <Transform translation='0.15 2.1 0.15'> |
| 45 | <Billboard axisOfRotation='0 0 0'> |
| 46 | <Shape> |
| 47 | |
| 48 | <Material diffuseColor='0 0 0'/> |
| 49 | </Appearance> |
| 50 | <Text string='"+Y axis"'> |
| 51 |
<!-- FontStyle
LABEL_FONT is a DEF node that has 2 USE nodes: USE_1, USE_2 --> <FontStyle DEF='LABEL_FONT' family='"SANS"' justify='"BEGIN" "END"' size='.4' style='ITALIC'/> |
| 52 | </Text> |
| 53 | </Shape> |
| 54 | </Billboard> |
| 55 | </Transform> |
| 56 | </Group> |
| 57 | <Transform rotation='0 0 1 -1.57079'> |
| 58 | <!-- Horizontal X arrow and label --> |
| 59 | <Group> |
| 60 | <Group USE='ARROW'/> |
| 61 | <Transform rotation='0 0 1 1.57079' translation='-0.15 2.1 0.15'> |
| 62 | <Billboard axisOfRotation='0 0 0'> |
| 63 | <Shape> |
| 64 | <Appearance USE='LABEL_APPEARANCE'/> |
| 65 | <Text string='"+X axis"'> |
| 66 | <FontStyle USE='LABEL_FONT'/> |
| 67 | </Text> |
| 68 | </Shape> |
| 69 | </Billboard> |
| 70 | </Transform> |
| 71 | </Group> |
| 72 | </Transform> |
| 73 | <Transform rotation='1 0 0 1.57079'> |
| 74 | <!-- Perpendicular Z arrow and label --> |
| 75 | <Group> |
| 76 | <Group USE='ARROW'/> |
| 77 | <Transform rotation='1 0 0 -1.57079' translation='0.15 2.1 -0.15'> |
| 78 | <Billboard axisOfRotation='0 0 0'> |
| 79 | <Shape> |
| 80 | <Appearance USE='LABEL_APPEARANCE'/> |
| 81 | <Text string='"+Z axis"'> |
| 82 | <FontStyle USE='LABEL_FONT'/> |
| 83 | </Text> |
| 84 | </Shape> |
| 85 | </Billboard> |
| 86 | </Transform> |
| 87 | </Group> |
| 88 | </Transform> |
| 89 | </Transform> |
| 90 | <!-- Draw spine-aligned cross-section plane at a spine point --> |
| 91 | <Transform DEF='SPINE_CROSS_SECTION'> |
| 92 | <Group> |
| 93 | <!-- Draw sphere and label at center of coordinate axis --> |
| 94 | <Group> |
| 95 | <Transform> |
| 96 |
<!-- Shape
DARK_GRAY_SPHERE is a DEF node that has 2 USE nodes: USE_1, USE_2 -->
<Shape DEF='DARK_GRAY_SPHERE'> |
| 97 | <Sphere radius='0.3'/> |
| 98 | |
| 99 | <Material diffuseColor='0.15 0.15 0.15'/> |
| 100 | </Appearance> |
| 101 | </Shape> |
| 102 | </Transform> |
| 103 | <Transform translation='-1 0 0'> |
| 104 | <Billboard axisOfRotation='0 0 0'> |
| 105 | <Shape> |
| 106 | <Appearance USE='LABEL_APPEARANCE'/> |
| 107 | <Text string='"spine[i]"'> |
| 108 |
<!-- FontStyle
LABEL_FONT2 is a DEF node that has 2 USE nodes: USE_1, USE_2 --> <FontStyle DEF='LABEL_FONT2' family='"SANS"' justify='"MIDDLE" "MIDDLE"' size='0.4' style='ITALIC'/> |
| 109 | </Text> |
| 110 | </Shape> |
| 111 | </Billboard> |
| 112 | </Transform> |
| 113 | </Group> |
| 114 | <!-- Draw spine rods --> |
| 115 | <Group> |
| 116 | <Transform rotation='0 0 1 0.64'> |
| 117 | <Transform translation='0 2.5 0'> |
| 118 | |
| 119 | <Cylinder bottom='false' height='5.0' radius='0.08' top='false'/> |
| 120 | <Appearance> |
| 121 | <Material diffuseColor='0.82 0.13 0.56'/> |
| 122 | </Appearance> |
| 123 | </Shape> |
| 124 | </Transform> |
| 125 | </Transform> |
| 126 | <Transform rotation='0 0 1 -0.64'> |
| 127 | <Transform translation='0 -2.5 0'> |
| 128 | <Shape USE='RED_ROD'/> |
| 129 | </Transform> |
| 130 | </Transform> |
| 131 | </Group> |
| 132 | <!-- Draw two spheres and labels at ends of spines --> |
| 133 | <Group> |
| 134 | <Transform translation='-3 4 0'> |
| 135 | <Shape USE='DARK_GRAY_SPHERE'/> |
| 136 | <Transform translation='0 0.7 0'> |
| 137 | <Billboard axisOfRotation='0 0 0'> |
| 138 | <Shape> |
| 139 | <Appearance USE='LABEL_APPEARANCE'/> |
| 140 | <Text string='"spine[i+1]"'> |
| 141 | <FontStyle USE='LABEL_FONT2'/> |
| 142 | </Text> |
| 143 | </Shape> |
| 144 | </Billboard> |
| 145 | </Transform> |
| 146 | </Transform> |
| 147 | <Transform translation='-3 -4 0'> |
| 148 | <Shape USE='DARK_GRAY_SPHERE'/> |
| 149 | <Transform translation='0 -0.7 0'> |
| 150 | <Billboard axisOfRotation='0 0 0'> |
| 151 | <Shape> |
| 152 | <Appearance USE='LABEL_APPEARANCE'/> |
| 153 | <Text string='"spine[i-1]"'> |
| 154 | <FontStyle USE='LABEL_FONT2'/> |
| 155 | </Text> |
| 156 | </Shape> |
| 157 | </Billboard> |
| 158 | </Transform> |
| 159 | </Transform> |
| 160 | </Group> |
| 161 | <!-- Draw tangent and label between spines --> |
| 162 | <Group> |
| 163 | <Transform translation='-3 0 0'> |
| 164 | <Shape> |
| 165 | <Cylinder height='8' radius='.02'/> |
| 166 | <Appearance USE='DARK_GRAY'/> |
| 167 | </Shape> |
| 168 | </Transform> |
| 169 | <Transform rotation='0 0 1 3.14' translation='-3 -3.55 0'> |
| 170 | <Shape> |
| 171 | <Cone bottomRadius='.15' height='.5'/> |
| 172 | <Appearance USE='DARK_GRAY'/> |
| 173 | </Shape> |
| 174 | </Transform> |
| 175 | <Transform translation='-3.2 0 0'> |
| 176 | <Billboard> |
| 177 | <Shape> |
| 178 | <Appearance USE='LABEL_APPEARANCE'/> |
| 179 | <Text string='"t a n g e n t"'> |
| 180 | <FontStyle family='"SANS"' horizontal='false' justify='"MIDDLE" "END"' size='0.5' style='ITALIC'/> |
| 181 | </Text> |
| 182 | </Shape> |
| 183 | </Billboard> |
| 184 | </Transform> |
| 185 | <Transform rotation='0 0 1 1.57' translation='-1.5 0 0'> |
| 186 | <Shape> |
| 187 | <Cylinder height='3' radius='.015'/> |
| 188 | <Appearance> |
| 189 | <Material diffuseColor='.2 .2 .2' transparency='.5'/> |
| 190 | </Appearance> |
| 191 | </Shape> |
| 192 | </Transform> |
| 193 | <Transform translation='-2.7 0.15 0'> |
| 194 | <Shape> |
| 195 | <Cylinder height='.3' radius='.02'/> |
| 196 | <Appearance USE='DARK_GRAY'/> |
| 197 | </Shape> |
| 198 | </Transform> |
| 199 | <Transform rotation='0 0 1 1.57' translation='-2.85 0.3 0'> |
| 200 | <Shape> |
| 201 | <Cylinder height='.3' radius='.02'/> |
| 202 | <Appearance USE='DARK_GRAY'/> |
| 203 | </Shape> |
| 204 | </Transform> |
| 205 | </Group> |
| 206 | <!-- Draw SCP (spine-aligned cross-section plane) and label --> |
| 207 | <Group> |
| 208 | <Transform> |
| 209 | <Shape> |
| 210 | <IndexedFaceSet solid='false' coordIndex='0 1 2 3 4 -1'> |
| 211 | <Coordinate point='1.35 0 1.35 1.35 0 -1.35 -1.35 0 -1.35 -1.35 0 1.35 1.35 0 1.35'/> |
| 212 | </IndexedFaceSet> |
| 213 | <Appearance> |
| 214 | <Material diffuseColor='0.27 0.51 0.71' transparency='.5'/> |
| 215 | </Appearance> |
| 216 | </Shape> |
| 217 | </Transform> |
| 218 | <Transform rotation='1 0 0 -1.57' translation='.5 0 -1'> |
| 219 | <Shape> |
| 220 | <Text string='"SCP"'> |
| 221 | <FontStyle family='"SANS"' size='0.4' style='BOLDITALIC'/> |
| 222 | </Text> |
| 223 | <Appearance USE='LABEL_APPEARANCE'/> |
| 224 | </Shape> |
| 225 | </Transform> |
| 226 | </Group> |
| 227 | </Group> |
| 228 | </Transform> |
| 229 | <!-- Draw title of model --> |
| 230 | <Group> |
| 231 | <Transform translation='-0.2 -5.5 0'> |
| 232 | <Shape> |
| 233 | <Text string='"Spine-aligned Cross-section Plane (SCP) at Spine Point"'> |
| 234 | <FontStyle DEF='LABEL_FONT3' family='"SANS"' justify='"MIDDLE" "MIDDLE"' size='0.45' style='BOLD'/> |
| 235 | </Text> |
| 236 | <Appearance USE='LABEL_APPEARANCE'/> |
| 237 | </Shape> |
| 238 | </Transform> |
| 239 | </Group> |
| 240 | </Transform> |
| 241 | </Scene> |
| 242 | </X3D> |
<!--
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matches XML terminology
<XmlElement
DEF='idName' attribute='value'/>
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(Grey background inside box: inserted documentation)
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