Getting real world coordinates from Forge model

Question

Is it possible to get the real world coordinates form the original model in the Forge viewer? It looks like when a model is loaded into the Viewer it is placed with the center of the model in the origin of the Viewer.

score 2 · Accepted Answer · edited May 23 '17 at 12:09

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viewer.model.getData().globalOffset is what you are looking for: Aligning Coordinate Systems in Autodesk Forge Viewer

edited May 23 '17 at 12:09

Community

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answered Mar 30 '17 at 14:47

Felipe

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This is exactly what I was looking for! – FrodeTo Mar 30 '17 at 19:24

score 0 · Answer 2 · answered Mar 30 '17 at 07:27

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Afaik, the Forge viewer centres the model. In other words, the origin of the viewer coordinate system is the centroid of the model. The scale of the model remains unchanged. As a result, you can transform the original model coordinates to Forge viewer and vice versa simply by adding or subtracting the model centroid.

answered Mar 30 '17 at 07:27

Jeremy Tammik

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Thanks for the answer, Jeremey. Do you know if the original model coordinates is located somewhere in the viewer model? If a customer uploads a model we do not know these values. – FrodeTo Mar 30 '17 at 08:36
Hi Frode, Probably not in general. Also, the details will always depend on the seed CAD file, e.g., the source authoring system. – Jeremy Tammik Mar 30 '17 at 11:50

Getting real world coordinates from Forge model

2 Answers2