AutoCAD Civil 3D Meshpoint Export to Quadstone Paramics
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Uploaded by quadstoneparamics on Nov 2, 2009
This video demonstrates a meshpoint export from AutoCAD Civil 3D to Quadstone Paramics, Traffic Microsimulation software.
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Quadstone Paramics has the ability to drape overlay images to XYZ co-ordinates. Inputting the values for these co-ordinates was traditionally a manual process this is a brief summary of a procedure to streamline the workflow using the new enhancement to export to a CSV file.
CONCEPTUAL PROCEDURE:
- Use Paramics to insert the image and form the mesh.
- Export this to a CSV file. (This is essentially the XY co-ordinates with Z values set to 0)
- Import the CSV file into AutoCAD Civil 3D which has the topography for the area defined (we imported from Google Earth for this example).
- Project the nodes to the terrain model topography (contour model).
- Export the projected nodes (with the correct Z values).
- Re-import to Paramics and the overlay will have Z values for visualization purposes.
NOTE:
Civil 3D and Google Earth (and most/all other Packages for Terrain Modeling) work to real world co-ordinates. The mesh in Paramics assumes the lower left corner of the image to be (0,0). A transformation needs to be done to ensure the nodes come back into Paramics in the correct space.
For the example in this video, the transformation was already done. The easiest way to do this is to insert the CSV file that was exported from Paramics and move the DTM (Digital Terrain Model) over it, using known points to get the correct orientation. As this is fundamentally an exercise for visualization purposes and the Google Earth topographies are not hugely accurate, we were satisfied with lining it up by eye.
Quadstone Paramics
www.paramics-online.com
www.pedestrian-simulation.com
Autodesk
www.autodesk.com
Video Provided by AEC Systems
www.aecsystems.com.au
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