ArcClose2D
ArcClose2D is a geometry node that defines a linear circular arc, closed by PIE or CHORD line segments, with center (0,0) in X-Y plane, with angles measured starting at positive x-axis and sweeping towards positive y-axis.
The ArcClose2D node belongs to the Geometry2D component and its container field is geometry. It is available since X3D version 3.0 or later.
Fields
SFNode [in, out] metadata NULL [X3DMetadataObject]
Metadata are not part of the X3D world and not interpreted by the X3D browser, but they can be accessed via the ECMAScript interface.
SFString [in, out] closureType "PIE" ["PIE"|"CHORD"]
Defines whether pair of line segments connect to center (PIE), or single line-segment chord connects arc endpoints (CHORD).
Warning
Simple-geometry parameters cannot be changed after initial creation.
SFFloat [in, out] startAngle [-2π,2π]
Arc extends from startAngle counterclockwise to endAngle, in radians.
Warning
Simple-geometry dimensions are initializeOnly and cannot be changed after initial creation, for animation use Transform scale instead.
SFFloat [in, out] endAngle 1.5708 [-2π,2π]
Arc extends from startAngle counterclockwise to endAngle, in radians.
Warning
Simple-geometry dimensions are initializeOnly and cannot be changed after initial creation, for animation use Transform scale instead.
SFFloat [ ] radius 1 (0,∞)
Circle radius, of which the arc is a portion.
Warning
Simple-geometry dimensions are initializeOnly and cannot be changed after initial creation, for animation use Transform scale instead.
SFBool [ ] solid FALSE
Setting solid true means draw only one side of polygons (backface culling on), setting solid false means draw both sides of polygons (backface culling off).
Hint
If in doubt, use solid='false' for maximum visibility.
Warnings
Default value true can completely hide geometry if viewed from wrong side! Solid false not supported in VRML97.
Example
XML Encoding
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<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.3//EN" "http://www.web3d.org/specifications/x3d-3.3.dtd"> <X3D profile='Full' version='3.3' xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance' xsd:noNamespaceSchemaLocation='http://www.web3d.org/specifications/x3d-3.3.xsd'> <head> <meta name='comment' content='World of Titania'/> </head> <Scene> <NavigationInfo type='"EXAMINE"' transitionType='"ANIMATE"'/> <Background skyAngle='1.5708' skyColor='0.1 0.1 0.1, 0.3 0.3 0.3' groundAngle='1.5708' groundColor='0.1 0.1 0.1, 0.3 0.3 0.3'/> <Viewpoint description='Initial View' position='0 0 3.08613' centerOfRotation='-0.0197983 -0.0453368 0'/> <Transform DEF='ArcClose2D'> <Shape> <Appearance> <Material DEF='Santafe11' ambientIntensity='0.110396' diffuseColor='0.228655 0.195513 0.425484' specularColor='0.324504 0.404255 0.404255' shininess='0.542553'/> </Appearance> <ArcClose2D startAngle='2' endAngle='6'/> </Shape> </Transform> </Scene> </X3D> |
Classic Encoding
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#X3D V3.3 utf8 Titania V4.0.6 PROFILE Full META "comment" "World of Titania" NavigationInfo { type "EXAMINE" transitionType "ANIMATE" } Background { skyAngle 1.5708 skyColor [ 0.1 0.1 0.1, 0.3 0.3 0.3 ] groundAngle 1.5708 groundColor [ 0.1 0.1 0.1, 0.3 0.3 0.3 ] } Viewpoint { description "Initial View" position 0 0 3.08613 centerOfRotation -0.0197983 -0.0453368 0 } DEF ArcClose2D Transform { children Shape { appearance Appearance { material DEF Santafe11 Material { ambientIntensity 0.110396 diffuseColor 0.228655 0.195513 0.425484 specularColor 0.324504 0.404255 0.404255 shininess 0.542553 } } geometry ArcClose2D { startAngle 2 endAngle 6 } } } |
JSON Encoding
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{ "X3D": { "encoding": "UTF-8", "@profile": "Full", "@version": "3.3", "@xsd:noNamespaceSchemaLocation": "http://www.web3d.org/specifications/x3d-3.3.xsd", "JSON schema": "http://www.web3d.org/specifications/x3d-3.3-JSONSchema.json", "head": { "meta": [ { "@name": "comment", "@content": "World of Titania" } ] }, "Scene": { "-children": [ { "NavigationInfo": { "@type": [ "EXAMINE" ], "@transitionType": [ "ANIMATE" ] } }, { "Background": { "@skyAngle": [ 1.5708 ], "@skyColor": [ 0.1, 0.1, 0.1, 0.3, 0.3, 0.3 ], "@groundAngle": [ 1.5708 ], "@groundColor": [ 0.1, 0.1, 0.1, 0.3, 0.3, 0.3 ] } }, { "Viewpoint": { "@description": "Initial View", "@position": [ 0, 0, 3.08613 ], "@centerOfRotation": [ -0.0197983, -0.0453368, 0 ] } }, { "Transform": { "@DEF": "ArcClose2D", "-children": [ { "Shape": { "-appearance": { "Appearance": { "-material": { "Material": { "@DEF": "Santafe11", "@ambientIntensity": 0.110396, "@diffuseColor": [ 0.228655, 0.195513, 0.425484 ], "@specularColor": [ 0.324504, 0.404255, 0.404255 ], "@shininess": 0.542553 } } } }, "-geometry": { "ArcClose2D": { "@startAngle": 2, "@endAngle": 6 } } } } ] } } ] } } } |
Titania
X_ITE