I am getting this error when I am trying to create a surface from my corridor. Instead of just defining a surface along my corridor it is trying to connect all contours lines between different parts of the corridor
When creating the surface I define 2 surfaces, one with overhang correction as top links with links data set as top, and a second with overhang correction as bottom links with links data defined as datum. I have then defined the boudaries using add automatically-daylight. I have followed this procedure for 5 previous corridors with no issues (ie the surface matches the corridor) so is there anyway I could have done something different
Any help would be much appreciated
Its worked well. The only issue is that I have to define the polyline right on the edge of the corridor to get an accurate boundary. That'll be a few hours of work but I'll have to put up with it
Typically when a corridor boundary fails there could be two causes. You may have a boundary feature line that crosses itself somewhere - some people call this a bowtie, or there may be two corridor sections on top of one another so that you get duplicate points on the line. Surface boundaries with duplicate points are not allowed.
If you open the surface boundaries tab of the corridor properties and click on the ellipsis in the Definitions column then you can see what feature lines are being used and there are some tools for checking the current boundary. If you want to do things old school then you can also create a boundary by adding the featurelines manually.
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