问题
Excuse the vagueness of this question, but in a model in the viewer, I'd like to know how I can establish the centre point of the visible parts. When I call fit-to-view on a model with hidden parts, I can see a dot appear in the viewer which seems to represent exactly this - the centre of the visible parts - how can I retrieve the coordinates of this point in code?
回答1:
The little green dot represents the "target" of the camera. You can get its coordinates using viewer.navigation.getTarget().
来源：https://stackoverflow.com/questions/52761235/finding-the-centre-point-of-the-visible-parts-in-the-autodesk-viewer