Tue, Nov 26 2002
15:01:08
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Request created by guest
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Subject: NVIZ Whiteout
Platform: GNU/Linux/i386
grass obtained from: Trento Italy site
grass binary for platform: Compiled from Sources
GRASS Version: 5.0.0
I have a georeferenced Aster-DEM and Spot-Data in a LL-Location.
Displaying each of them individually within NVIZ works fine.
Alas, draping the Spot imagery over the DEM fails in a strange way:
The Spot-datas color table was set to WAVE to ensure a bright and colorful
result, while DEM was set to a rather dull GREY.EQ table.
Applying the Spot data as "color" for the DEM renders a purely white
landscape.
The mentioned spot scene is definetely not a sibirian 'winter wonderland' or
a frozen lake, there should be quite a bit of data appearing on screen.
Both data sets are well behaved: r.info shows ranges of 73-250 (DEM) and
1-14 (Spot), no NULLs.
I already probed for a possible scaling problem:
The DEMs resolution is 0:00:00.9 while the Spot imagery is about 0:00:00.3
Setting the g.region to the lower of the two values didn't affect the
white-out phenomena at all.
Any help/advice would be much appreciated
Peter |
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Wed, Apr 5 2006
11:19:49
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Subject changed to NVIZ Whiteout when raster color is SPOT imagery by hbowman
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Mon, Jul 31 2006
16:30:48
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Mail sent by mneteler
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Peter,
is this still an issue?
Markus |
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Mon, Jul 31 2006
17:08:09
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Mail sent by peter.loewe@gmx.de
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Mon, 31 Jul 2006 17:08:06 +0200
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=?iso-8859-1?Q?=22Peter_L=F6we=22?= <peter.loewe@gmx.de>
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<20060731143048.52A18101EE0@lists.intevation.de>
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Subject |
Re: [bug #1442] (grass) NVIZ Whiteout when raster color is SPOT imagery
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Markus Neteler via RT <grass-bugs@intevation.de>
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i don't hope so !
--
Dr. Peter Löwe
Diplom-Geograph
<loewe@geomancers.net>
<peter.loewe@gmx.de>
Echte DSL-Flatrate dauerhaft für 0,- Euro*. Nur noch kurze Zeit!
"Feel free" mit GMX DSL: http://www.gmx.net/de/go/dsl
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Mon, Feb 5 2007
21:53:56
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Status changed to resolved by mneteler
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