Hidden geometry, possibly from dxf file
-
Can someone explain what these lines are and how to safely delete them please?! It's an imported dxf file which I am trying to draw over in a 2d plane. They are hidden but interfere with any line I draw by intersecting it. They're not on any layer from the imported file that I can see. I haven't come across this before in this work flow. I want to rotate the drawing, but that makes it even worse, because the hidden geometry stretches. Its driving me nuts!
-
If they are hidden in SketchUp, you should be able to turn them off to make them not visible. Before you do that and before you start tracing, select all and make a group or component. That will prevent the new edges you draw from intersecting with them.
You could also erase/delete the ones you can easily get to.
We've seen cases where the Z-values of points in a supposedly 2D DXF file were all over the place. Do these lines look better in the top view with the camera set to Parallel Projection?
-
Yes, I can turn them off, but they are connected to the drawing proper, which turns most of that off as well. Likewise, if I delete them, I delete most of the drawing. I guess I should have grouped at it you say, but I’ve done this a few times now and not had the problem before.
Its actually two dxf files laid over each other, which may have something to do with it - a proper topo survey set in a wider plan from UK Ordnance Survey.
I’m using a top view, parallel projection to work in 2D - looking at it from other angles, the file does appear to be flat (although I appreciate it may not be by a very small amount). The screenshots are top view.
When asking for dxf or dwg files from consultants, is there anything I should be specifying to minimise aggravation?
-
Discovered that if I export as a 2D graphic (dwg) and then import that, it has got rid of all the rubbish. All of the layer controls have gone, but I don't need those anyway. This method has the added bonus of truly flattening the file as well.
Advertisement