I remember seeing Paul Aubin do this by making a line at the join and cutting back to the line but these lines are very difficult to select.
Can someone show me a trick for cutting away the unseen part of this little California roof underneath. It needs to be just an overbuild roof.
Thank You
I can only think that the Roof of the Left if too low for it to cut but should work, try that Face first this time does that make a difference?
Another possible solution is drag the Left Edge of the linking Roof back so it can find a Face to meet against rather than cut back?
Finally you could use the Dormer Tool which may be what you originally suggested for the side that will not join automatically
Use Join Geometry to join the middle roof with the other two roofs. Then in a roof plan or site plan you'll be able to see the valley lines, add a reference plane at each. Then edit the sketch of each roof and modify the sketch so the boundary follows the valley edge. If the eave does not leave an edge that can be slope defining. You can create two roofs that have their slope defining edge at the ridge instead, using a negative pitch. This way the "cricket" roof between the other two can end in a "point". If you post a version of the file with just the roofs I can modify it to show you what I'm describing.
Steve Stafford
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I see that somehow, in the course of my 100 attempts, the roof shrank. It should go all the way to the outside on both ends.
With that said though, I think the problem is that these two roofs are separate roofs, (see attachment),
and I can't get join geometry to work to bind them together. If I could, this operation would probably work.
Copy the roofs to a blank file and upload it here?
Steve Stafford
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Here's your file after I tweaked the roofs. I used Join Geometry on each roof so the valley line remains visible while editing the roof. Have a look. There is some subtle alignment issues between them that I didn't dig into but the general concept is there.
Steve Stafford
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Where the three roofs meet at the bottom of the valleys and where the two parallel roofs meet each other at their valley. It's tiny, you have to zoom in to see it.
Steve Stafford
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All the roofs I need to use Join Geometry on did so without issue. I don't know why they didn't for you but I didn't have any walls in the model to interact with the roofs. It's possible that a wall that is attached to one or more of the roofs was interfering because of its own relationship to the roof(s).
Steve Stafford
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