{ "X3D": { "encoding":"UTF-8", "@profile":"Immersive", "@version":"3.0", "@xsd:noNamespaceSchemaLocation":"https://www.web3d.org/specifications/x3d-3.0.xsd", "JSON schema":"https://www.web3d.org/specifications/x3d-4.0-JSONSchema.autogenerated.json", "head": { "meta": [ { "@name":"title", "@content":"ViewpointSequencerPrototype.x3d" }, { "@name":"description", "@content":"Animate through a set of Viewpoint or GeoViewpoint nodes and repeat" }, { "@name":"creator", "@content":"Don Brutzman" }, { "@name":"created", "@content":"10 December 2002" }, { "@name":"modified", "@content":"3 February 2024" }, { "@name":"subject", "@content":"Viewpoint Tour" }, { "@name":"reference", "@content":"CubeWithLabeledSidesViewpointSequencerIndex.html" }, { "@name":"reference", "@content":"https://www.web3d.org/x3d/content/examples//Basic/Geospatial/CaliforniaCampusesIndex.html" }, { "@name":"info", "@content":"Two versions of this scene are maintained in order to avoid Cross-Origin Resource Sharing (CORS) restrictions when referenced from X3D models embedded inside HTML." }, { "@name":"reference", "@content":"https://savage.nps.edu/Savage/Tools/Animation/ViewpointSequencerPrototype.x3d" }, { "@name":"reference", "@content":"https://www.web3d.org/technicalinfo/specifications/vrml97/part1/nodesRef.html#ScalarInterpolator" }, { "@name":"identifier", "@content":"https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/Animation/ViewpointSequencerPrototype.x3d" }, { "@name":"generator", "@content":"X3D-Edit 4.0, https://www.web3d.org/x3d/tools/X3D-Edit" }, { "@name":"license", "@content":"../../license.html" }, { "@name":"translated", "@content":"16 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":[ { "WorldInfo": { "@title":"ViewpointSequencerPrototype.x3d" } }, { "ProtoDeclare": { "@name":"ViewpointSequencer", "@appinfo":"Sequentially binds each Viewpoint in a set of Viewpoint USE nodes, creating an automatic tour for a scene", "ProtoInterface": { "field": [ { "@name":"viewpoints", "@accessType":"initializeOnly", "@appinfo":"Viewpoint USE nodes that are sequentially bound", "@type":"MFNode", "-children":[ { "#comment":"initialization nodes (if any) go here" } ] }, { "@name":"interval", "@accessType":"inputOutput", "@appinfo":"number of seconds between viewpoint shifts", "@type":"SFTime", "@value":5 }, { "@name":"enabled", "@accessType":"inputOutput", "@appinfo":"whether ViewpointSequencer is enabled or not", "@type":"SFBool", "@value":true }, { "@name":"set_enabled", "@accessType":"inputOnly", "@appinfo":"whether ViewpointSequencer is enabled or not", "@type":"SFBool" }, { "@name":"previous", "@accessType":"inputOnly", "@appinfo":"bind previous Viewpoint in list", "@type":"SFBool" }, { "@name":"next", "@accessType":"inputOnly", "@appinfo":"bind next Viewpoint in list", "@type":"SFBool" }, { "@name":"toggleMessage", "@accessType":"inputOutput", "@appinfo":"Select message to toggle ViewpointSequencer", "@type":"MFString", "@value":["Click text to toggle","ViewpointSequencer"] }, { "@name":"toggleMessageFontSize", "@accessType":"initializeOnly", "@appinfo":"Font size for toggleMessage text", "@type":"SFFloat", "@value":1 }, { "@name":"toggleMessageColor", "@accessType":"inputOutput", "@appinfo":"Color for toggleMessage text", "@type":"SFColor", "@value":[0.6,0.4,0.13] }, { "@name":"traceEnabled", "@accessType":"inputOutput", "@appinfo":"enable console output", "@type":"SFBool", "@value":false } ] }, "ProtoBody": { "-children":[ { "Group": { "@DEF":"ProtoBodyGroup", "-children":[ { "TimeSensor": { "@DEF":"Trigger", "@loop":true, "IS": { "connect": [ { "@nodeField":"enabled", "@protoField":"enabled" }, { "@nodeField":"cycleInterval", "@protoField":"interval" } ] } } }, { "TimeSensor": { "@DEF":"TraceHolder", "IS": { "-children":[ { "#comment":"this node and field is used to hold value of ProtoInterface field" } ], "connect": [ { "@nodeField":"enabled", "@protoField":"traceEnabled" } ] } } }, { "Script": { "@DEF":"SequencerScript", "@directOutput":true, "field": [ { "@name":"viewpoints", "@accessType":"initializeOnly", "@type":"MFNode" }, { "@name":"set_enabled", "@accessType":"inputOnly", "@appinfo":"whether ViewpointSequencer is enabled or not", "@type":"SFBool" }, { "@name":"TriggerNode", "@accessType":"initializeOnly", "@type":"SFNode", "-children":[ { "TimeSensor": { "@USE":"Trigger" } } ] }, { "@name":"TraceHolderNode", "@accessType":"initializeOnly", "@type":"SFNode", "-children":[ { "TimeSensor": { "@USE":"TraceHolder" } } ] }, { "@name":"triggerNext", "@accessType":"inputOnly", "@type":"SFTime" }, { "@name":"previous", "@accessType":"inputOnly", "@type":"SFBool" }, { "@name":"next", "@accessType":"inputOnly", "@type":"SFBool" }, { "@name":"index", "@accessType":"initializeOnly", "@type":"SFInt32", "@value":0 }, { "@name":"viewpointCount", "@accessType":"initializeOnly", "@type":"SFInt32", "@value":0 }, { "@name":"traceEnabled", "@accessType":"initializeOnly", "@type":"SFBool", "@value":false } ], "-children":[ { "#comment":"local Script variables needing persistent values" } ], "IS": { "connect": [ { "@nodeField":"viewpoints", "@protoField":"viewpoints" }, { "@nodeField":"previous", "@protoField":"previous" }, { "@nodeField":"next", "@protoField":"next" }, { "@nodeField":"set_enabled", "@protoField":"set_enabled" } ] }, "#sourceCode":[ "", "", "ecmascript:", "", "function initialize ()", "{", "\tindex = 0;", "\tviewpointCount = viewpoints.length;", "\ttraceEnabled = TraceHolderNode.loop;", "", "\ttracePrint ('initialize: viewpoints.length=' + viewpointCount);", "\ttracePrint ('initialize: Viewpoint [' + index + '] ' + viewpoints[index].description);", "", "\tif (TriggerNode.enabled=='false') return;", "\tif (viewpointCount > 0) viewpoints[index].set_bind = true;", "}", "", "function set_enabled (newValue, timeStamp)", "{", "\tenabled = newValue;", "\ttracePrint ('enabled=' + newValue);", " if ((newValue == true) && (viewpoints.length >= 1))", " viewpoints[0].bind = true;", "}", "", "function triggerNext(triggerTime, timeStamp)", "{", "\tif ((TriggerNode.enabled=='false') || (viewpointCount==0)) return;", "\tif (index < viewpointCount - 1)", "\t\tindex++;", "\telse\tindex = 0;", "\tif (viewpointCount > 1) viewpoints[index].set_bind = true;", "\ttracePrint ('triggerNext: Viewpoint [' + index + '] ' + viewpoints[index].description);", "}", "", "function previous (value, timeStamp)", "{", " if ((TriggerNode.enabled=='false') || (viewpointCount==0)) return;", " if (value==true) // trigger on true events only", " {", "\tif (index > 0)", "\t\tindex--;", "\telse\tindex = viewpointCount - 1;", "\tif (viewpointCount > 1) viewpoints[index].set_bind = true;", "\ttracePrint ('previous: Viewpoint [' + index + '] ' + viewpoints[index].description);", " }", "}", "function next (value, timeStamp)", "{", " if ((TriggerNode.enabled=='false') || (viewpointCount==0)) return;", " if (value==true) // trigger on true events only", " {", "\tif (index < viewpointCount - 1)", "\t\tindex++;", "\telse\tindex = 0;", "\tif (viewpointCount > 1) viewpoints[index].set_bind = true;", "\ttracePrint ('next: Viewpoint [' + index + '] ' + viewpoints[index].description);", " }", "}", "", "function tracePrint(outputString)", "{", "\tif (traceEnabled) Browser.println ('[ViewpointSequencer] ' + outputString);", "}", "", "function alwaysPrint(outputString)", "{", "\tBrowser.println ('[ViewpointSequencer] ' + outputString);", "}", "", "" ] } }, { "ROUTE": { "@fromField":"cycleTime", "@fromNode":"Trigger", "@toField":"triggerNext", "@toNode":"SequencerScript" } }, { "Group": { "@DEF":"TouchTextGroup", "-children":[ { "TouchSensor": { "@DEF":"TouchTextSensor", "@description":"Click text to toggle ViewpointSequencer" } }, { "Billboard": { "@axisOfRotation":[0,0,0], "-children":[ { "Shape": { "-geometry": { "Text": { "IS": { "connect": [ { "@nodeField":"string", "@protoField":"toggleMessage" } ] }, "-fontStyle": { "FontStyle": { "@justify":["MIDDLE","MIDDLE"], "IS": { "connect": [ { "@nodeField":"size", "@protoField":"toggleMessageFontSize" } ] } } } } }, "-appearance": { "Appearance": { "-material": { "Material": { "IS": { "connect": [ { "@nodeField":"diffuseColor", "@protoField":"toggleMessageColor" } ] } } } } } } }, { "#comment":"An invisible box behind the string helps to toggle the ViewpointSequencer" }, { "Shape": { "-geometry": { "Box": { "@size":[7.8,2,0.1] } }, "-appearance": { "Appearance": { "-material": { "Material": { "@diffuseColor":[1,1,1], "@transparency":1 } } } } } } ] } }, { "BooleanToggle": { "@DEF":"TouchToggle" } }, { "ROUTE": { "@fromField":"isActive", "@fromNode":"TouchTextSensor", "@toField":"set_boolean", "@toNode":"TouchToggle" } }, { "#comment":"TouchToggle toggle_changed should likely revert to TouchToggle toggle when inputOutput fields supported in Script, or native implementation provided." }, { "ROUTE": { "@fromField":"toggle", "@fromNode":"TouchToggle", "@toField":"set_enabled", "@toNode":"SequencerScript" } }, { "ROUTE": { "@fromField":"toggle", "@fromNode":"TouchToggle", "@toField":"enabled", "@toNode":"Trigger" } } ] } } ] } } ] } } }, { "#comment":"===============Example==============" }, { "Anchor": { "@description":"select to view ViewpointSequencer example", "@parameter":["target=_blank"], "@url":["ViewpointSequencerExample.x3d","https://www.web3d.org/x3d/content/examples/Savage/Tools/Animation/ViewpointSequencerExample.x3d","ViewpointSequencerExample.wrl","https://www.web3d.org/x3d/content/examples/Savage/Tools/Animation/ViewpointSequencerExample.wrl"], "-children":[ { "Shape": { "-geometry": { "Text": { "@string":["ViewpointSequencerPrototype","defines a prototype","Click text to see example scene","ViewpointTourExample"], "-fontStyle": { "FontStyle": { "@justify":["MIDDLE","MIDDLE"], "@size":0.9 } } } }, "-appearance": { "Appearance": { "-material": { "Material": { "@diffuseColor":[1,1,0.2] } } } } } }, { "Shape": { "-children":[ { "#comment":"transparent Box to make text more selectable" } ], "-geometry": { "Box": { "@size":[11,5,0.1] } }, "-appearance": { "Appearance": { "-material": { "Material": { "@diffuseColor":[1,1,1], "@transparency":1 } } } } } } ] } } ] } } }