Is there a ruling for this command? In the attached image, I want to maintain the original exposed shape of TOPO 1. The second image shows the effect of merging two surfaces. Is there a way to overide this?
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IIRC : The topo that "wins" is based on selection order - try selecting them the opposite way round.
That said, it looks like the issue you're experiencing is down to the defined points present in the lower of the two topos - as Revit will not remove defined points, merely bring them all together. Remember "merge surface" isn't "consolidate surfaces" (there'd need to be a rule dialog for that) - so you may be forced to do the whole manual copy/paste points.
Q: Are they phased developments? (ie. existing & proposed) - are using the graded surface tool, so Revit "knows" what you're taking away/adding? -
Changing in which order you select gives the same result. And they are not in phase. But thanks for the advise.Comment
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The merging happens completely random when not phased. Phasing them should give you the correct merge...Martijn de Riet
Professional Revit Consultant | Revit API Developer
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the techniques described in this thread by Tim West may helpOriginally posted by Jun Austria View Post
Topography (Yeah, Yeah)There are no stupid questions, only stupid peopleComment
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