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I'm an new user to qgis/GRASS and I've run into a problem with the nviz module.

In trying to visualise a raster heat map created from vector contours in 3D using the nviz module in GRASS tools in qgis. I received the following error dialogue box:

Can't find usable tk.tcl in the following directories:

I'm running QGIS 1.7.4 Wroclaw on Win7 32 bit and GRASS 6.4.2

I looked in these directories and both tcl8.5 and tk8.5 were missing. I did find tcl8.5.11 and tk8.5.11 on sourceforge. I'm now not sure how to proceed. Will these files fix my problem and how do I get them running and into the right directories?

Any help is greatly appreciated.

Kind regards

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Thanks for your reply will check it out. Cheers – user7677 May 21 '12 at 21:35

Be sure that you installed also the tcl/tk libraries through the OSGeo4W installer.

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