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Is there a way to convert 2D features to "3D" features in QGIS? I know there is a way to do this in ArcMap by using an attribute value in the attribute table, but I am looking to do this with shapefiles in QGIS.

Thanks...

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I want to convert to 3D from 2D –  Rashed Oct 16 at 11:15
    
Convert what? Lines, polygons, points? –  Ryan Garnett Oct 17 at 1:04

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up vote 4 down vote accepted

You can use the v.to.3d module in the GRASS toolkit (installed with QGIS) to do 2d to 3d layer transformation.

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Thank you, this seems to be the exact tool, however, when I look for the tool in the GRASS Tools I do not see it. There are four tools available (r.topidx, vdrape, v.random and nviz) when filtered by 3D, but no v.to.3d. I am new to Grass Tools, is there something I am doing incorrectly? –  Ryan Garnett Jun 21 '12 at 16:08
    
The module is new to version 6.4.0, see link grass.osgeo.org/announces/announce_grass640.html –  artwork21 Jun 21 '12 at 16:28
    
I have downloaded and installed the newest version of Grass (6.4.1-1). After installation I do not see the v.to.3d tool available within QGIS. What am I missing? –  Ryan Garnett Jun 21 '12 at 17:12

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