Author Topic: Generate boundary from contour lines  (Read 2525 times)

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CHulse

  • Swamp Rat
  • Posts: 504
Generate boundary from contour lines
« on: January 21, 2016, 02:46:19 PM »
Does anyone know of a way to "shrinkwrap" a dwg of topo lines (from an aerial survey) to generate a tight boundary? Shrinkwraplinework doesn't do it. We eventually generate a surface, but need the boundary to clip to.
Any direction would be appreciated.

Cary Hulse
Urban Forestry Manager
Wetland Studies and Solutions

Civil 3D 2020 & 2023

CHulse

  • Swamp Rat
  • Posts: 504
Re: Generate boundary from contour lines
« Reply #1 on: November 14, 2023, 06:19:39 AM »
After all thee years, I still have not found a good solution to this problem, so I thought I'd give this thread a bump.
Given a selection set of open ended plines (contour lines), how might I get an outer boundary? I'm at a loss for where to start.

Thanks
Cary Hulse
Urban Forestry Manager
Wetland Studies and Solutions

Civil 3D 2020 & 2023

Lee Mac

  • Seagull
  • Posts: 12899
  • London, England
Re: Generate boundary from contour lines
« Reply #2 on: November 14, 2023, 06:25:15 AM »

CHulse

  • Swamp Rat
  • Posts: 504
Re: Generate boundary from contour lines
« Reply #3 on: November 14, 2023, 07:24:14 AM »
Thanks Lee, I had missed that one.
Seems like this is a much more complex problem than I had imagined.
Cary Hulse
Urban Forestry Manager
Wetland Studies and Solutions

Civil 3D 2020 & 2023

BIGAL

  • Swamp Rat
  • Posts: 1386
  • 40 + years of using Autocad
Re: Generate boundary from contour lines
« Reply #4 on: November 15, 2023, 09:37:01 PM »
There is a commercial package out there it has a cost but looks very promising. Will try to find it again.
A man who never made a mistake never made anything