topic Re: intersecting planes in Modeling

intersecting planes

Anonymous — Tue, 23 May 2023 12:19:27 GMT

Hello.
I have the following planes, that need to intersect. I reached the last one (central in the picture), that needs to intersect all the previous ones.
I tried to build it as a simple, plain roof and then transform it into mesh. I moved the mesh points and it develops lines, because the plane gets divided.
All that I basically need to do is build a simple plane in 3D, that ideally contains all four points of intersection with all other planes, and then extrude it. How can I do that?

Re: intersecting planes

Anonymous — Sat, 03 Dec 2016 18:53:06 GMT

I also attach the plan of the 3D picture shown earlier.

Re: intersecting planes

DGSketcher — Mon, 05 Dec 2016 10:47:25 GMT

If your roof mitres are exactly 45 degrees on plan then you appear from the 3D to have an inconsistent roof pitch or eaves level.

Re: intersecting planes

Anonymous — Tue, 20 Dec 2016 11:51:38 GMT

Hello.
Thank you for your answer. No, the roof mitres are not 45 degrees in plan. I do not know what to do next.

Re: intersecting planes

Anonymous — Tue, 20 Dec 2016 12:05:42 GMT

This is how it looks in 3D if I transform it into a morph and drag its corners.

Re: intersecting planes

DGSketcher — Tue, 20 Dec 2016 13:16:53 GMT

A plane can only be consistently defined by three points. In your case there is a misalignment which requires the creation of a second triangle as the fourth point is not on the plane. The only way to keep the structure and hide the line would be by converting that part of the roof to a morph and using the tools to hide the edge. The split in the plane would still exist though.

Re: intersecting planes

DGSketcher — Wed, 21 Dec 2016 10:50:40 GMT

One further thought... Are you working on an existing building? Have you considered "correcting" the survey dimensions to square up the walls so you have 45 degree mitres and I assume a common eaves wall height?