Hi guys I've put together my cut and fill surface and for some reason holes have appeared in this surface showing an elevation close to -100m which is totally wrong.
is there any reason why this might be happening or what needs to be done to get around this?
I looked in my main road and design surface drawing and there is nothing apparent that stick out to me.
It's hard to say what is causing it. Typically it happens when several surfaces are pasted together and the seamlines don't merge properly. A quick way to fix the holes is to add a SHOW BOUNDARY to the surface. It will cause the triangles to form across the holes. You can create a single show boundary that encompasses all the holes, or even the entire surface.
I think I may not have understood the issue. You are working with a Volume surface and those are not holes but spikes in the triangulation. That is an entirely different situation. I can't diagnose it without a file.
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