I think it is possible to get this information through the coin camera node : cn=Gui.ActiveDocument.ActiveView.getCameraNode() # the coin node of the camera cn.orientation.getValue().getValue() # the quaternion that describes the camera orientation Some more info here : https://grey.colorado.edu/co...

Update my question. Please see above. Thx.

Say I have some custom view orientation in which the global coordinate frame looks like the picture below with no axis aligned to the edges of the computer monitors screen: xyz.png I know how to get the direction vector for the camera with Gui.ActiveDocument.ActiveView.getViewDirection() But this is...

Recently I encountered the same question with Draft.Label, found this: def getTextSize(textNode): from pivy import coin v = FreeCADGui.ActiveDocument.ActiveView.getViewer().getSoRenderManager().getViewportRegion() b = coin.SoGetBoundingBoxAction(v) textNode.getBoundingBox(b) return b.getBoundingBox...

Is there no built in method to get view height in FreeCAD units or annotation rectangle dimension in pixels besides parsing these strings? This would be a 3D-vector. The annotation is just a pixel object at top of the view, which can point in any direction in FreeCAD coordinates. Then is there the ...

How do pixel amounts from QtGui relate to FreeCAD vectors so I can accomplish this positioning? This is not a fixed value and changes each time you zoom in and out. You can try the following, to get the height of the view in FreeCAD units among other information. Gui.activeDocument().activeView().g...

I am trying to find the height and width of the AnnotationLabel rectangles that contain the text so I can position them with respect to the centre of the rectangle instead of the lower left corner. I got pixel width and heights from QtGui and basically by trial and error positioned a test point to t...

Here is a paper on geometric modeling problems with CAD software.

http://ww3.cad.de/foren/ubb/uploads/Mei ... /allen.pdf

Why is CAD/3D modeling so frustrating:

https://www.quora.com/Why-is-3D-modeling-so-frustrating

Maybe it would be good to point out if these problems are also problems in other CAD packages. If not then why?
I am somewhat sympathetic to the statement that a real expert knows the problems of a domain and ways to overcome or avoid them.
So where else does FreeCAD fail?

It is not clear to me what this topological naming issue is? Can you flesh this out more?