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From 3D CAD to Web catalogs Dieter Weidenbrück

From 3D CAD to Web catalogs Dieter Weidenbrück. Content. Generating illustrations from 3D CAD Creation of callouts Parts lists Processing the data Viewing environment. Generating illustrations from 3D CAD. Requirements for illustrations. Graphic quality Structural quality File sizes.

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From 3D CAD to Web catalogs Dieter Weidenbrück

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  1. From 3D CAD to Web catalogsDieter Weidenbrück

  2. Content • Generating illustrations from 3D CAD • Creation of callouts • Parts lists • Processing the data • Viewing environment

  3. Generating illustrations from 3D CAD

  4. Requirements for illustrations • Graphic quality • Structural quality • File sizes

  5. Conversion to 2D • Using the 2D output of CAD systems • Requires additional work on the CAD side • Requires work in an illustration package after conversion • Sample 1: Low quality, IGES not better than HPGL • Sample 2: IGES with HLR, still substantial work required • Using the 3D output of CAD systems • Less work on the engineering side • Requires illustration package that can manage the conversion • Sample: 3D IGES Surface model

  6. Generating illustrations from 3D CAD • Combination of 3D CAD system and 2D illustration package • Using 2D output of CAD: • Additional workload on engineers • "Explode" functionality may be used • Leads to 2D file that needs to be improved and finalized • Finishing and hotspotting in 2D illustration system • Limited quality

  7. Generating illustrations from 3D CAD • Using 3D output of CAD: • Publishing department is more independent from engineering • Additional views can be generated as required • Higher graphical and structural quality • Smaller file sizes

  8. Creation of Callouts • Will be added in the illustration package • Hotspots are created on callouts or the object geometry • Sample: Hotspot variations

  9. Parts Lists • Extracted from databases • XML <?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="ipc.xsl"?> <IPCLIST IPC_THIS="assembly1.xml" IPC_FIGTITLE="Assembly" IPC_CGMFILE="assembly1.cgm"> <IPCPART> <IPC_ITEM>1</IPC_ITEM> <IPC_PN>9921137</IPC_PN> <IPC_DEN>Arm Assembly, cpl</IPC_DEN> <IPC_REF>arm</IPC_REF> <IPC_QTT>1</IPC_QTT> </IPCPART> </IPCLIST>

  10. Parts Lists • XSLT used to create parts list table • WebCGM links are created during transformation

  11. Processing the data • Automated process reads the data and prepares the catalog • Read parts lists • Examine illustrations • Find matching pairs of callout numbers • Create graphic objects on illustration • ID set by illustration system • Callout number becomes the "name" attribute • linkURI is built automatically from filename and object name • Hotspot region is created • Consistency checks • Write XML and CGM files

  12. Viewing environment • Frame set • Lower frame loads XML page containing first parts list • Parts list loads CGM file into viewer frame • No scripting except for initial loading of CGM • XML is transformed into HTML using an XSLT

  13. Demo • Data Conversion 3D to 2D • Callout handling • Files of catalog • Functionality

  14. Conclusion • Today's standards allow for usage of 3D CAD data in electronic parts catalogs • COTS tools are available to handle most of the process • Some glue is needed to automate the process • WebCGM offers functionality for a simple web-based catalog • Additional functionality requires scripting – and more work

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