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Jiří Žára

Jiří Žára. Contents. Web3D Consortium X3D specification GeoVRML NurbsVRML. 2. X3Dom + js. DOM Manipulation: setting attributes <transform id=“ boxTR ”> <shape> <appearance> <material id=“ mat ” diffuseColor =“1 0 0”> </material> </appearance> <box id=“ redBox ”></box>

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Jiří Žára

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  1. Jiří Žára

  2. Contents • Web3D Consortium • X3D specification • GeoVRML • NurbsVRML 2

  3. X3Dom + js • DOM Manipulation: setting attributes • <transform id=“boxTR”> • <shape> • <appearance> • <material id=“mat” diffuseColor=“1 0 0”> • </material> • </appearance> • <box id=“redBox”></box> • <inline id=“inID” url=“nic.x3d”></inline> • </shape> • </transform> • JS manipulation: • document.getElementById(‘mat’).setAttribute(‘diffuseColor’,’green’); • document.getElementById(‘redBox’).setAttribute(‘size’,’1 2 3’); • document.getElementById(‘boxTR’).setAttribute(‘rotation’,’1 0 0 -3’); • document.getElementById(“inID”).setAttribute(“url”,”path/model.x3d”); • - This cause replacing of inlined geometry “immediately” Inspired by X3Dom talk at Fraunhofer IGD (Sep. 2012), texts and images are adapted from the talk also

  4. id / DEF • If both id and DEF are set both attributes will have different values • If only DEF is given id is unset • If only id is given DEF and id will be set • <Transform id=‘trNode’ DEF=‘tr’> … </Transform> • <PositionInterpolator id=‘p1’ DEF=‘p1’key=‘…’ keyValue=‘…’ /> • <OrientationInterpolator DEF=‘o1’ key=‘…’ keyValue=‘…’ /> • Valid: • document.getElementById(‘trNode’); • <ROUTE fromNode=‘o1’ fromField=‘…’ toNode=‘tr’toField=‘…' /> • <ROUTE fromNode=‘p1’ fromField=‘…’ toNode=‘tr’ toField=‘…' /> • Invalid: • document.getElementById(‘o1’); • <ROUTE fromNode=‘p1’ fromField=‘…’ toNode=‘trNode’ toField=‘…' /> Inspired by X3Dom talk at Fraunhofer IGD (Sep. 2012), texts and images are adapted from the talk also

  5. X3Dom + js • DOM Manipulation: Node appending / removal • <group id=‘root’></group> • JS to add nodes: • root = document.getElementById(‘root’); • trans = document.createElement(‘Transform’); • trans.setAttribute(‘translation’, ‘1 2 3’); • root.appendChild(trans); • JS to remove nodes: • root.removeChild(trans); Inspired by X3Dom talk at Fraunhofer IGD (Sep. 2012), texts and images are adapted from the talk also

  6. X3Dom + js HTML Events: User Interaction through DOM Events <transform id=“boxTR”> <shape> <appearance> <material id=“mat” diffuseColor=“1 0 0”> </material> </appearance> <box id=“redBox” onclick=“document.getElementById(‘mat’). setAttribute(‘diffuseColor’,’green’);” > </box> </shape> </transform> Test it ! Inspired by X3Dom talk at Fraunhofer IGD (Sep. 2012), texts and images are adapted from the talk also

  7. X3Dom + js HTML Events: User Interaction through DOM Events2 <transform id=“boxTR”> <shape> <appearance> <material id=“mat”></material> </appearance> <box id=“redBox”></box> </shape> </transform> <script type="text/javascript"> document.onload = function() { document.getElementById(‘redBox').addEventListener('click', function() { document.getElementById('mat').setAttribute('diffuseColor', ‘green'); }, false) }; </script> Test it ! Inspired by X3Dom talk at Fraunhofer IGD (Sep. 2012), texts and images are adapted from the talk also

  8. X3Dom + js • HTML Events: Ultimate DOM manipulation • <transform id=“boxTR”> • <shape> • <box id=“redBox”></box> • </shape> • <inline id=“inID” url=“nic.x3d” nameSpaceName="carusel"> • </inline> • </transform> • How to read attribute ? • document.getElementById(‘redBox’).getAttribute(‘size’); • How to access inlined elements ? • Define nameSpaceName • To access nodes nameSpaceName.”__”.inlinedNodeID(two underscores) • document.getElementById(‘carusel__mat’).getAttribute(‘…’); Test it ! Inspired by X3Dom talk at Fraunhofer IGD (Sep. 2012), texts and images are adapted from the talk also

  9. AR & X3Dom ? No problem  • Video capture & display FLASH • Object detection Marker tracking FLARToolkit (Flash AR Toolkit) • 3D real-time rendering X3Dom (flash window overlay) Test it ! Inspired by X3Dom talk at Fraunhofer IGD (Sep. 2012), texts and images are adapted from the talk also

  10. AR & X3Dom ? flash Marker detector camera trigger javaScript function set_marker_transform(value) { document.getElementById(‘rootT’) .setAttribute(matrix, value); } X3Dom <x3d> <scene> <matrixtransform id=“rootT”> </matrixtransform> <transform> HUD if we want </transform> </scene> </x3d> 3D scene

  11. X3D editor https://savage.nps.edu/X3D-Edit/

  12. examples • http://examples.x3dom.org/IG/syn/index-inline.html • http://www.3dcoform.eu/x3dom/ • http://x3dom.org/x3dom/example/x3dom_bmwConfig.html • http://x3dom.org/x3dom/example/x3dom_canvas.html Inspired by X3Dom talk at Fraunhofer IGD (Sep. 2012), texts and images are adapted from the talk also

  13. howto X3Dom ? Entry points for getting started • X3DOM online documentation and code examples • http://x3dom.org/docs/dev/ (tutorials and docs) • http://www.x3dom.org/school/ (12 simple examples) • http://www.x3dom.org/iX/ (7 examples with animation) • http://www.x3dom.org/x3dom/test/functional/ (lots of feature tests) • More docs and tools • http://www.instantreality.org/downloads/ (InstantPlayer and aopt converter) • http://doc.instantreality.org/documentation/getting-started/ (links to X3D) Inspired by X3Dom talk at Fraunhofer IGD (Sep. 2012), texts and images are adapted from the talk also

  14. … end of this part • Todo: • Přidat ukázky animací a routování • bitLODGeometry / texture • http://www.x3dom.org/x3dom/test/functional/BVHRefiner.html • Shadery, cube map • Uděláme z toho samostatnou přednášku X3D + X3Dom • Možná další příklady X3D / VRML (vztah k 1.) • X3dom + js (interakce, prototypy, shadery, ar?) 14

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