Having trouble forming face.....
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I'm trying to make a backed valley rafter in sketchup,for some reason I cant get one of the backed side to form a face
I'm on dial so I can't watch the video tuts online,could some one explain to me what I'm doing wrong.
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The problem is that the edges bounding that area are not coplanar thus they will never close a face despite they form a closed loop. With this piece,you can do two things:
- restart it and take care of the edges forming a coplanar and closed loop (this is what I'd do)
- draw a diagonal line to divide it into two triangles (this case the faces would form) and soften the line with the Ctrl + tool (you have some hidden lines around anyway - softening is better than hiding though)
This is what I did in the attached file.
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It closes neatly if I draw a diagonal line, but if I erase it afterwards, the faces are erased too. This implies that it is not coplanar, if ever so slightly. If accuracy is not important, you can just smooth the line (ctrl-eraser) but maybe you should start again.
Instead of trying to construct the rafter from scratch with lines, you could try a different approach, drawing planes for the top and bottom rafter surfaces, vertical planes for the rafter sides, and using the Intersect functions to cut out the final shape. See attached for the rough idea
Anssi
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@gaieus said:
The problem is that the edges bounding that area are not coplanar thus they will never close a face despite they form a closed loop. With this piece,you can do two things:
- restart it and take care of the edges forming a coplanar and closed loop (this is what I'd do)
- draw a diagonal line to divide it into two triangles (this case the faces would form) and soften the line with the Ctrl + tool (you have some hidden lines around anyway - softening is better than hiding though)
This is what I did in the attached file.
Thank you,
Thats perfect,thank you for that neat little trick ctrl+eraser works out perfect,
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And Shift+Erase will hide the lines. There is a significan difference between the two however; with hidden lines, the faces remain separate while with softening, they will be "joined" to form a (curved) surface.
On faces divided with hidden lines only, you can still access texture positioning, PushPull and all the stuff that can only be applied on single faces while to do this on smoothed surfaces, you will always turn on hidden geometry first.
(Very briefly...)
The best would still be what both me and Anssi suggested; start over and care for all the faces being created of single faces where you need not hide/soften edges. Much easier to work with.
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