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CAD tip CAD tip # 8406:

Question CAD 
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Q - question

How to color 3D topo surface model by elevation?

A - answer With the free add-on utility "CADstudio DTMcol" you can automatically color your topographic digital terrain model (DTM) consisting of triangular 3DFACEs by its elevations.

Just download, load it with APPLOAD and start the DTMCOL command. Select your model (or All) and choose one of the predefined color palettes (16-color, 256-color, rainbow, big rainbow, green, land, hydro or pastel colors). The tool will analyze the extreme elevations (top, bottom), calculates the color ramps and then the toposurface 3D model will be recolored automatically.

See an example of the source model and some of the results (output) of DTMcol:

Source (e.g. from the DTM tool)

Big rainbow palette

Land palette

Hydro palette

Pastel palette

Video - using DTMcol:

You can get similar results from the surfaces functionality in AutoCAD Civil 3D

100% *  CAD 
10.1.2012    7587×  
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applies to: AutoCAD ·

See also:
Tip 10682:Automatic classification of drawing objects by their properties.
Tip 9625:How to color 3D topo surface model by slope?
Tip 7852:Put Google Earth maps directly into AutoCAD.
Tip 7424:Converting bitmaps to 3D NURBS surfaces (engraving images).
Tip 7314:How to add contour labels to Civil 3D terrain models.

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