In the past 20+ years using ArchiCAD I always missed some functions that would make basic drafting easier. One of them is drafting out an ellipse in axonometry. Most often it is easy to determine 4 points along the horizontal and vertical axes and their tangents. Problem is that there is no easy way to get the ellipse from here. I feel that an expensive CAD program like ArchiCAD should have a geometry method that takes it from here and I don't have to dig out my old descriptive geometry text book or start drafting all sorts of construction lines. So what I need is a geometry method where I define the centerpoint, 2 points of the arc and their tangents. That should be enough for a software to compute the rest. Or a geometry method where I define the bounding parallelogram.
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