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Civil 3D Percent Slope

Printed From: CAD Forum
Category: EN
Forum Name: Civil 3D, Map, InfraWorks
Forum Description: Discussion about mapping and GIS applications Map, Civil3D, InfraWorks, MapGuide and Raster Design
URL: https://www.cadforum.cz/forum_en/forum_posts.asp?TID=13078
Printed Date: 13.May.2026 at 08:56


Topic: Civil 3D Percent Slope
Posted By: greatsyd
Subject: Civil 3D Percent Slope
Date Posted: 24.Jan.2019 at 13:34
Can anybody tell me how Civil calculates the percentage of Slopes?

Thank you very much!


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Trial and "FATAL ERROR" is the key to success!


Replies:
Posted By: nkiakas
Date Posted: 27.Mar.2019 at 07:49
Civil 3d calclulates triangles.
These triangles have a specific and only one slope.
So when civil 3d returns the slope, in fanct returns the slope of each triangle.
In fact the slope of each triangle is a slope of a "straight furface", coming from the 3 points of the triangle.
I hope i helped you 

Posted By: c.chambers
Date Posted: 28.Mar.2019 at 01:35
Are asking about the specifi formula Civil 3D uses ? If so, Civil 3D creates surfaces using the Delaunay triangulation method. 

from there slopes are derived use the triangles as described by nkiakas

C. Chambers
Infratech Civil
https://infratechcivil.com


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C. Chambers, Civil Application Specialist
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www.infratechcivil.com


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