Importing 3D models and units

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03-17-2021 09:43 AM
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HanaSuckstorff
New Contributor

Hi folks! I'm trying to import an OBJ file into ArcScene (local scene) in ArcPro version 2.7.1. I originally imported the OBJ mesh into SketchUp, where I set the unit at meters. I then exported the file as an OBJ and imported into ArcScene. As the basemap is in meters, a model in meters should be the proper size. But as you can see from the screenshot, it's much too small. What might account for this? How can I make this work?OBJ Import Screenshot March  17.png

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DanPatterson
MVP Esteemed Contributor

does the imported file have a defined coordinate system.

Your display units are in decimal degrees, what are your map units?  What is the coordinate system of the map?


... sort of retired...
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HanaSuckstorff
New Contributor

Thanks for your response. I set the coordinate system of the OBJ at WGS_1984_Web_Mercator_Auxiliary_Sphere, which is the coordinate system of the map, when I imported it into ArcScene. The map units are whatever the standard units are for the ArcScene basemap. I did try fiddling with the OBJ in SketchUp using architectural units. When I imported this file into ArcScene, it was significantly too large.

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