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Could not project the selected entities into the current sketch.
famadorian
Member Posts: 390 ✭✭✭
Here, I'm trying to project the line entity onto the sketch, but it wants me to pick a point, like the end of the line instead.
I can do that, but it should be able to project this line as a point onto the sketch;)
I can do that, but it should be able to project this line as a point onto the sketch;)
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NeilCooke
Moderator, Onshape Employees Posts: 5,379 
Projecting a line normal to the sketch plane is not supported, since the result is just a point that you can reference anyway without projection. What would happen if the line was no longer perpendicular to the sketch plane? The point would turn into a line and your sketch would break.Senior Director, Technical Services, EMEAI0
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The problem is that you would get undefined behavior if the line gets changed/rotated earlier in the model tree. Should the "use" constraint now make the point coincident with an endpoint of the line? The line's midpoint? Change the sketch geometry to a line and try to reconnect any constraints? I think it's cleanest if Onshape doesn't let you get into this situation by not letting you project geometry that creates degenerate curves/weird setups.
However, it would be nice if there were more of an explanation for why it can't project the line.