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Forums >> Revit Building >> Tips & Tricks >> Importing a METRIC CAD survey file generates topo lines at wrong elevation
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Joined: Tue, Nov 17, 2009
148 Posts
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Greetings ... I am trying to generate a Toposurface using the "Select Import Instance" command. In METRIC ... - My Revit environment is based on the Metric template supplied with Revit 2011. Units are set to millimeters ...
- the CAD file is in metric units w/ millimeters set as the Units.
When I create the toposurface, the points are not at the correct elevation. The CAD file has the contour lines at 516 but Revit generates the topo at 516000. I know that this is a meter vs. millimeter issue so I reset the units (CAD file) to "meters" but I got the exact same result. I've imported the CAD file with the units set to meters and then millimetersIf someone can offer help, I'd be truly grateful. Ian
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Ian Shafer
Principal Consultant
True North S&F Consultants |
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"I know that this is a meter vs. millimeter issue so I reset the units (CAD file) to "meters" but I got the exact same result. " - And in your Revit project did you cange your units to METERS too?
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I Hope and I Wish to LEARN more, and more, and more.... REVIT |
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thanks for your interest. I did change the Revit file to import in meters ... but the cad file came in 1/1000 scale.I also changed the Revit file environment to meters but then the existing information (walls, level marks) also changed. Perhaps I need to import the site into a brand new model then set up the levels and re-add the walls ...?
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Ian Shafer
Principal Consultant
True North S&F Consultants |
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