I looked at the Intersect Arc and Line tool… and I was able to reproduce the “flipping intersect point”… sort of. RT did some really strange stuff with this tool, and I’m still not quite sure why it does what it does.
First thing I noticed is that to reproduce the flippping when moving the basepoint, the arc has to be past the line segment… like:
This does not produce the flipping:
Secondly, and the part that really has me baffled, is if you move the basepoint far enough away from the origin point (0,0), the flipping stops???
The tool acts weird because it’s trying decide which intersect point to used based on position of the basline points and the way the tool is extending the segment.
Line segment A4 to A1:
Line segment A4 to A1:
Line segment A4 to A1:
Again I think the solution would be to change the way the tool extends the segment in both directions, and add the option to select 1st or 2nd intesect point.