topic Re: how to get contour lines from toposolid in Revit API Forum

how to get contour lines from toposolid

NZhouSNYLF — Tue, 17 Oct 2023 15:43:32 GMT

toposolid had a very big issue (at least for us) -> no contour lines displayed when "Modify Sub Elements", try to find solution or workaround, is API doable?

Re: how to get contour lines from toposolid

jeremy_tammik — Tue, 17 Oct 2023 16:47:33 GMT

I would assume that the contour lines can be accessed via view-specific geometry. Enter a view displaying them and use RevitLookup or some other database exploration tool to retrieve the toposolid view-specific element geometry. See if you can find the lines in there somewhere. If so, you should be able to copy their curve geometry and generate model curves from that.

Re: how to get contour lines from toposolid

NZhouSNYLF — Tue, 17 Oct 2023 16:56:58 GMT

thanks Jeremy, i tried RevitLookup to search contour lines for both (new) Toposolid and (old) Topography but in vain, maybe i missed something simple?

Re: how to get contour lines from toposolid

jeremy_tammik — Tue, 17 Oct 2023 17:10:27 GMT

IncludeNonVisibleObjects?

https://thebuildingcoder.typepad.com/blog/2010/05/curtain-wall-geometry.html

Re: how to get contour lines from toposolid

NZhouSNYLF — Tue, 17 Oct 2023 18:08:11 GMT

so i can only access those contour lines via geometry instead of native Revit stuff? i'll give it a try, thanks Jeremy

edit: RevitLookup can find contour lines via GeometryElement

Re: how to get contour lines from toposolid

NZhouSNYLF — Tue, 17 Oct 2023 21:54:43 GMT

hi Jeremy, i did a quick test, seems curtain wall works OK but toposolid doesn't, strangely RevitLookup looks OK but coding only list ONE solid

Re: how to get contour lines from toposolid

jeremy_tammik — Wed, 18 Oct 2023 03:37:44 GMT

RevitLookup IS coding, exactly the same as yours, unless you missed something. Compare more carefully, spot the difference, and you will see how to achieve the same.

Re: how to get contour lines from toposolid

NZhouSNYLF — Fri, 20 Oct 2023 19:08:36 GMT

thanks Jeremy, i did test for both Toposolid and TopographySurface

. RevitLookup can display contour lines info so it's doable as you mentioned early

. same coding approach works for TopographySurface but not for Toposolid

edit: need to add options.View = doc.ActiveView;

Re: how to get contour lines from toposolid

jeremy_tammik — Fri, 20 Oct 2023 19:25:53 GMT

Great! Congratulations on solving it and thank you for the confirmation. Can you add a little bit more detail on your exact solution, maybe adding a small code snippet demonstrating the crucial points? Thank you!

Re: how to get contour lines from toposolid

NZhouSNYLF — Fri, 20 Oct 2023 19:45:50 GMT

thanks Jeremy, works OK now after adding "options.View = doc.ActiveView;"