Obtaining Global Positioning System related data in Model Derivative translated model

Question

While using the Forge Viewer to visualize BIM models, we were able to confirm that original models placed at GPS coordinate location are properly translated with Model Derivative, making BIM be placed at geo coordinates(or at least, model's global offset with some geo coordinates).

However, we were not able to distinguish whether model derivative translated BIM Models were based on GPS coordinates or not. I was wondering if there exists a flag that provides us that information.

Thanks in advance!

Answer 1

Please accept our sincere apologies for the delay, we have a backlog of support cases.

As I know, Forge platform doesn't play well with GIS information currently. Apologizing for any inconvenience caused. Consequently, our InfraWorks team is looking for companies and developers who can help us narrow down the use cases, please refer here for the detail: https://forge.autodesk.com/blog/call-input-infraworks-api

However, you can use the following codes to tell the Forge Viewer (after v.3.1) do not centralize models after loading, if your Revit models are placed with some GIS coordinates in Revit shared coordinates system.

var loadOptions = {
  applyRefPoint: true,
  globalOffset: { x:0, y:0, z:0 }
};

this.viewer.loadModel(
            svfUrl, 
            loadOptions,
            onLoadModelSuccess,
            onLoadModelError
);