{ "X3D": { "encoding":"UTF-8", "@profile":"Immersive", "@version":"3.1", "@xsd:noNamespaceSchemaLocation":"https://www.web3d.org/specifications/x3d-3.1.xsd", "JSON schema":"https://www.web3d.org/specifications/x3d-4.0-JSONSchema.autogenerated.json", "head": { "meta": [ { "@name":"title", "@content":"CadGeometryPrototypes.x3d" }, { "@name":"description", "@content":"This scene provides tool developers with X3D Amendment 1 CAD Component node prototypes, providing backwards compatibility with VRML97 and X3D v3.0." }, { "@name":"creator", "@content":"Travis Rauch, Alan Shaffer, Mounir Sidhom, Patrick Sullivan and Don Brutzman" }, { "@name":"created", "@content":"28 April 2005" }, { "@name":"modified", "@content":"2 December 2024" }, { "@name":"warning", "@content":"Do not use these prototypes in an up-to-date X3D browser that already provides CAD support." }, { "@name":"info", "@content":"Recommended practice: avoid using these prototypes, instead use native definitions for CAD nodes using an up-to-date X3D browser." }, { "@name":"info", "@content":"These scenes are not intended for regular authoring - use X3D v3.2+ CAD component instead. Example scenes using these prototypes do not get support for making embdedded metadata values visible at run time, though metadata can certainly be saved in the scene file OK." }, { "@name":"reference", "@content":"CadGeometryExternPrototypes.x3d" }, { "@name":"reference", "@content":"https://www.web3d.org/files/specifications/19775-1/V3.3/Part01/components/CADGeometry.html" }, { "@name":"reference", "@content":"https://www.web3d.org/files/specifications/19775-1/V3.3/Part01/CADInterchange.html" }, { "@name":"subject", "@content":"CADAssembly CADFace CADLayer CADPart IndexedQuadSet QuadSet" }, { "@name":"identifier", "@content":"https://www.web3d.org/x3d/content/examples/Basic/CAD/CadGeometryPrototypes.x3d" }, { "@name":"generator", "@content":"X3D-Edit 3.3, https://www.web3d.org/x3d/tools/X3D-Edit" }, { "@name":"license", "@content":"../license.html" }, { "@name":"translated", "@content":"20 April 2026" }, { "@name":"generator", "@content":"X3dToJson.xslt, https://www.web3d.org/x3d/stylesheets/X3dToJson.html" }, { "@name":"reference", "@content":"X3D JSON encoding: https://www.web3d.org/wiki/index.php/X3D_JSON_Encoding" } ] }, "Scene": { "-children":[ { "#comment":"===========================================" }, { "WorldInfo": { "@title":"CadGeometryPrototypes.x3d" } }, { "ProtoDeclare": { "@name":"IndexedQuadSet", "@appinfo":"The IndexedQuadSet node represents a 3D shape composed of a collection of individual quadrilaterals (quads). IndexedQuadSet uses the indices in its index field to specify the vertices of each quad from the coord field. Each quad is formed from a set of four vertices of the Coordinate node identified by four consecutive indices from the index field If the index field does not contain a multiple of four coordinate values the remaining vertices shall be ignored.", "@documentation":"https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/components/CADGeometry.html#IndexedQuadSet", "ProtoInterface": { "field": [ { "@name":"set_index", "@accessType":"inputOnly", "@appinfo":"range [0..∞) or -1", "@type":"MFInt32", "-children":[ { "#comment":"No specific initialization value" } ] }, { "@name":"attrib", "@accessType":"inputOutput", "@appinfo":"[X3DVertexAttributeNode]", "@type":"MFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] }, { "@name":"color", "@accessType":"inputOutput", "@appinfo":"[X3DColorNode]", "@type":"SFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] }, { "@name":"coord", "@accessType":"inputOutput", "@appinfo":"[X3DCoordinateNode]", "@type":"SFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] }, { "@name":"fogCoord", "@accessType":"inputOutput", "@appinfo":"[FogCoordinate]", "@type":"SFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] }, { "@name":"normal", "@accessType":"inputOutput", "@appinfo":"[X3DNormalNode]", "@type":"SFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] }, { "@name":"texCoord", "@accessType":"inputOutput", "@appinfo":"[X3DTextureCoordinateNode]", "@type":"SFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] }, { "@name":"ccw", "@accessType":"initializeOnly", "@type":"SFBool", "@value":true }, { "@name":"colorPerVertex", "@accessType":"initializeOnly", "@appinfo":"colorPerVertex ignored in IndexedQuadSet, and always treated as true", "@type":"SFBool", "@value":true }, { "@name":"normalPerVertex", "@accessType":"initializeOnly", "@type":"SFBool", "@value":true }, { "@name":"solid", "@accessType":"initializeOnly", "@type":"SFBool", "@value":true }, { "@name":"index", "@accessType":"initializeOnly", "@appinfo":"range [0..∞) or -1", "@type":"MFInt32", "-children":[ { "#comment":"No specific initialization value" } ] }, { "@name":"metadata", "@accessType":"inputOutput", "@appinfo":"[X3DMetadataObject]", "@type":"SFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] } ] }, "ProtoBody": { "-children":[ { "IndexedFaceSet": { "@DEF":"RenderedIQS", "IS": { "connect": [ { "@nodeField":"attrib", "@protoField":"attrib" }, { "@nodeField":"color", "@protoField":"color" }, { "@nodeField":"colorPerVertex", "@protoField":"colorPerVertex" }, { "@nodeField":"coord", "@protoField":"coord" }, { "@nodeField":"fogCoord", "@protoField":"fogCoord" }, { "@nodeField":"normal", "@protoField":"normal" }, { "@nodeField":"texCoord", "@protoField":"texCoord" }, { "@nodeField":"ccw", "@protoField":"ccw" }, { "@nodeField":"normalPerVertex", "@protoField":"normalPerVertex" }, { "@nodeField":"solid", "@protoField":"solid" } ] } } }, { "#comment":"Initial node in the PROTO body is actual node type, and the only node rendered. 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The coord field contains a Coordinate node that defines the 3D vertices that define the quad. Each quad is formed from a consecutive set of four vertices of the coordinate node. If the coordinate node does not contain a multiple of four coordinate values the remaining vertices shall be ignored.", "@documentation":"https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/components/CadGeometry.html#QuadSet", "ProtoInterface": { "field": [ { "@name":"attrib", "@accessType":"inputOutput", "@appinfo":"[X3DVertexAttributeNode]", "@type":"MFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] }, { "@name":"color", "@accessType":"inputOutput", "@appinfo":"[X3DColorNode]", "@type":"SFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] }, { "@name":"coord", "@accessType":"inputOutput", "@appinfo":"[X3DCoordinateNode]", "@type":"SFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] }, { "@name":"fogCoord", "@accessType":"inputOutput", "@appinfo":"[FogCoordinate]", "@type":"SFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] }, { "@name":"normal", "@accessType":"inputOutput", "@appinfo":"[X3DNormalNode]", "@type":"SFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] }, { "@name":"texCoord", "@accessType":"inputOutput", "@appinfo":"[X3DTextureCoordinateNode]", "@type":"SFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] }, { "@name":"ccw", "@accessType":"initializeOnly", "@type":"SFBool", "@value":true }, { "@name":"colorPerVertex", "@accessType":"initializeOnly", "@appinfo":"colorPerVertex ignored in QuadSet, and always treated as true", "@type":"SFBool", "@value":true }, { "@name":"normalPerVertex", "@accessType":"initializeOnly", "@type":"SFBool", "@value":true }, { "@name":"solid", "@accessType":"initializeOnly", "@type":"SFBool", "@value":true }, { "@name":"metadata", "@accessType":"inputOutput", "@appinfo":"[X3DMetadataObject]", "@type":"SFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] } ] }, "ProtoBody": { "-children":[ { "IndexedFaceSet": { "@DEF":"RenderedQS", "IS": { "connect": [ { "@nodeField":"attrib", "@protoField":"attrib" }, { "@nodeField":"color", "@protoField":"color" }, { "@nodeField":"colorPerVertex", "@protoField":"colorPerVertex" }, { "@nodeField":"coord", "@protoField":"coord" }, { "@nodeField":"fogCoord", "@protoField":"fogCoord" }, { "@nodeField":"normal", "@protoField":"normal" }, { "@nodeField":"texCoord", "@protoField":"texCoord" }, { "@nodeField":"ccw", "@protoField":"ccw" }, { "@nodeField":"normalPerVertex", "@protoField":"normalPerVertex" }, { "@nodeField":"solid", "@protoField":"solid" } ] } } }, { "#comment":"Initial node in the PROTO body is actual node type, and the only node rendered. Remaining ProtoBody nodes not rendered" }, { "Group": { "@DEF":"UnrenderedQS", "-children":[ { "Script": { "@DEF":"QuadSetToIndexedFaceSet", "@directOutput":true, "field": [ { "@name":"index", "@accessType":"initializeOnly", "@type":"MFInt32", "-children":[ { "#comment":"initialized in ecmascript" } ] }, { "@name":"set_index", "@accessType":"inputOnly", "@type":"MFInt32" }, { "@name":"renderedQS", "@accessType":"initializeOnly", "@type":"SFNode", "-children":[ { "IndexedFaceSet": { "@USE":"RenderedQS" } } ] }, { "@name":"localTraceEnabled", "@accessType":"initializeOnly", "@type":"SFBool", "@value":true }, { "@name":"coordIndexNew", "@accessType":"initializeOnly", "@type":"MFInt32", "-children":[ { "#comment":"constructed during initialization" } ] } ], "#sourceCode":[ "", "", "ecmascript:", "", "function initialize()", "{", "\t//colorPerVertex ignored in QuadSet, and always treated as \"true\"", "\tRenderedQS.colorPerVertex = true;", "", "\t// calculate index value from QuadSet coord values", "\tif (renderedQS.coord)", "\t{", "\t\tnumberOfCoordinatePoints = renderedQS.coord.point.length;", "\t}", "\telse", "\t{", "\t\ttracePrint ('no Coordinate node found');", "\t\treturn;", "\t}", "\tif (numberOfCoordinatePoints < 4)", "\t{", "\t\talwaysPrint ('warning, numberOfCoordinatePoints=' + numberOfCoordinatePoints + ' insufficient to construct a quad, QuadSet ignored');", "\t\treturn;", "\t}", "", "\tcoordIndexNew = new MFInt32 ();", "", "\t// ii walks through index array,", "\t// goal is to initialize coordIndexNew list to match quads", "\tfor (ii=0; ii <= numberOfCoordinatePoints-1; ii+=4)", "\t{", "\t\t// check if at least 4 vertices remaining to build a quad", "\t\tif ((numberOfCoordinatePoints - ii) < 4)", "\t\t{", "\t\t\talwaysPrint ('error, index field does not contain a multiple' +", "' of four coordinate values.');", "\t\t\talwaysPrint ('The remaining vertices shall be ignored');", "\t\t\treturn;", "\t\t}", "", "\t\tif ((index[ii] == index[ii+1]) || (index[ii] == index[ii+2]) || (index[ii] == index[ii+3]) ||", "\t\t (index[ii+1] == index[ii+2]) || (index[ii+1] == index[ii+3]) ||", "\t\t (index[ii+2] == index[ii+3]))", "\t\t{", "\t\t\talwaysPrint ('index=' + index);", "\t\t\talwaysPrint ('error, pair of equal indices in quad');", "\t\t\treturn;", "\t\t}", "", "\t\tif (index[ii] >= 0)", "\t\t{", "\t\t\t// add another quad from latest 4 points of fan set to QS", "\t\t\t// order is ccw, i.e. in correct halfplane direction", "\t\t\t// note: there is an implicit \"malloc\" here for the'length' element of the array", "\t\t\tcoordIndexNew [coordIndexNew.length] = index[ii];", "\t\t\tcoordIndexNew [coordIndexNew.length] = index[ii+1];", "\t\t\tcoordIndexNew [coordIndexNew.length] = index[ii+2];", "\t\t\tcoordIndexNew [coordIndexNew.length] = index[ii+3];", "\t\t\tcoordIndexNew [coordIndexNew.length] = -1;", "\t\t}", "", "\t // incremental trace of array being built", "\t tracePrint ('coordIndexNew=' + coordIndexNew);", "\t}", "\trenderedQS.set_coordIndex = coordIndexNew;", "\ttracePrint ('renderedQS.coordIndex=' + renderedQS.coordIndex);", "\t// match colorIndex if any Color node exists", "//\tif (nodesHolder.color)", "//\t{", "//\t if (nodesHolder.color.color.length > 0)", "//\t {", "\t\t// Could implement color count check here", "//\t }", "//\t}", "", "\t// no need to set colorIndex since indexedFaceSet semantics handles this", "}", "function set_index (value, timestamp)", "{", "\tindex = value;", "\tinitialize ();", "}", "function tracePrint(outputString)", "{", " if (localTraceEnabled)", "\t Browser.println ('[IndexedQuadSet]' + outputString);", "}", "function alwaysPrint(outputString)", "{", "\tBrowser.println ('[IndexedQuadSet]' + outputString);", "}", "", "" ] } }, { "Group": { "-metadata": { "MetadataString": { "@name":"metadataHolder", "IS": { "connect": [ { "@nodeField":"metadata", "@protoField":"metadata" } ] } } } } } ] } } ] } } }, { "#comment":"========================================" }, { "ProtoDeclare": { "@name":"CADAssembly", "@appinfo":"The CADAssembly node holds a set of assemblies or parts grouped together.", "ProtoInterface": { "field": [ { "@name":"addChildren", "@accessType":"inputOnly", "@type":"MFNode" }, { "@name":"removeChildren", "@accessType":"inputOnly", "@type":"MFNode" }, { "@name":"children", "@accessType":"inputOutput", "@appinfo":"The children field can contain X3DProductStructureChildNode types. Each child will be either a sub-assembly or a part.", "@type":"MFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] }, { "@name":"name", "@accessType":"inputOutput", "@appinfo":"The name field documents the name of this CADAssembly.", "@type":"SFString" }, { "@name":"bboxCenter", "@accessType":"initializeOnly", "@appinfo":"Bounding box center: position offset from origin of local coordinate system.", "@type":"SFVec3f", "@value":[0,0,0] }, { "@name":"bboxSize", "@accessType":"initializeOnly", "@appinfo":"Bounding box size: automatically calculated can be specified as an optimization or constraint.", "@type":"SFVec3f", "@value":[-1,-1,-1] }, { "@name":"metadata", "@accessType":"inputOutput", "@appinfo":"[X3DMetadataObject]", "@type":"SFNode", "-children":[ { "#comment":"Specification initialization: NULL node" } ] } ] }, "ProtoBody": { "-children":[ { "Group": { "IS": { "connect": [ { "@nodeField":"addChildren", "@protoField":"addChildren" }, { 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"-geometry": { "ProtoInstance": { "@name":"QuadSet", "fieldValue": [ { "@name":"coord", "-children":[ { "Coordinate": { "@point":[-1.5,0,0,-1.5,1,-1,-0.5,1,-1,-0.5,0,0,0.5,0,0,1.5,0,0,1.5,1,-1,0.5,1,-1] } } ] } ] } } } } ] } }, { "#comment":"========================================" }, { "#comment":"Silence scene warnings by providing ordered ProtoInstance examples. Note warning above that this scene is for developmental use. The ProtoInstance form of the CAD nodes should not be used, native X3D encoding should be used instead." }, { "ProtoInstance": { "@name":"CADLayer", "fieldValue": [ { "@name":"children", "-children":[ { "ProtoInstance": { "@name":"CADAssembly", "fieldValue": [ { "@name":"children", "-children":[ { "ProtoInstance": { "@name":"CADPart", "fieldValue": [ { "@name":"children", "-children":[ { "ProtoInstance": { "@name":"CADFace", "fieldValue": [ { "@name":"shape", "-children":[ { "Shape": { "-geometry": { "Cylinder": { "@bottom":false, "@height":0.000001, "@radius":0.000001, "@side":false } }, "-appearance": { "Appearance": { "-material": { "Material": { } } } } } } ] } ] } } ] } ] } } ] } ] } } ] } ] } } ] } } }