Face making issues

mumbus

I like to think of myself as fairly proficient in Sketchup but occasionally situations arise that cost me so much time trying to troubleshoot. It mostly has to do with generating faces. I have attached a file with 2 different situations I have experienced recently. On the left is a curved retaining wall shape that I cant get to create a face. Everything is flat and seemed to be on plane but it just wont close. I tried draping the shape on a solid which kind of worked but it was broken up when I tried to extrude it. The second example is a site plan I imported from an engineer and placed on a solid base. You can see some closed faces have been generated and I know you sometimes need to draw a small line segment on the the shape to close it but others just wont work. I search all around this linework from the engineer and there are a few open lines that are causing the issue, but there is an area that I circled that shows a simple rectangle that should create a face and it just wont do it. I assume that if I can see the linework when looking at it from the top and the bottom of the plane that it is flat and true. I spent a lot of time trying to troubleshoot only to redraw. Any insight on this would be greatly appreciated. I am using Sketchup Make 2017.

problems.skp

mumbus

Here is another one that just happened and drives me crazy. How could I possibly offset a closed face and not have it create a closed face at that offset distance? And nothing I do closes it.There are two very similar curved faces in the file. One that creates a face on the offset and the other doesnt.

problem2.skp

Bruce Watt

The first problem is a line that does not intersect with another.

gap

The second problem is a mystery. I don't know why it will not close

pilou

Problem 2
Curious because that works fine in 2016!

Maybe a bug in 2017?
When I use Solid Solver by TIG --> SPlatch !

pbacot

Your post is a little confusing: first problem, second problem etc. It does help to know that some of the work is imported from AwfulCAD. What seems to happen is the vertices imported are not in fact on a true plane. Like Pilou I am not using 2017. It seems to have too many issues. In 2016 it appears that the bow shape offset works fine. For the rectangle in the parking median, I used "Flatten Vertices" plugin. At that point a line drawn along an edge makes a face on the rectangle. A "Make Faces"plugin may have done the same as tracing an edge, but I don't have one of those plugins installed at the moment.

mumbus

Thank you for the responses. Looks like there are some helpful plugins I need to download to assist in solving these issues. I have been using this program for about 9 years and only occasionally run into a problem like this that drives me mental. I finally decided to ask about it. Thanks for your help.

Bep

Yes it is a so-cold sloppy Cad drawing.

Use the plugin "flatten to plane" to get all geometry flat on the working plane.
Use "edge tools" plugin to find and repair as many as possible small errors.
Use the "make faces" plugin to make faces.
Use the plugin "Cleanup" to get rid of all useless geometry.

pbacot

@bep said:

Yes it is a so-cold sloppy Cad drawing.

Use the plugin "flatten to plane" to get all geometry flat on the working plane.

Use "edge tools" plugin to find and repair as many as possible small errors.

Use the "make faces" plugin to make faces.

Use the plugin "Cleanup" to get rid of all useless geometry.

I would add do some manual clean up either before or upon import of CAD, you don't need some edges (crossing over multiple surfaces, not ending on another edge etc. ) that do not really represent or delineate 3d shapes and appear to be remnants of 2d drawing. Do this before you try to make faces.