[General] Manage 'natural' colors for a map drapped over a DEM

ThGonon · January 2, 2017, 06:06

Dear all,

First, I wish you an happy new year.
I'm posting here because I need to display a map drapped over a DEM in Paraview, exported from GRASS7. Using the Grayscale preset, on RGB_Image Magnitude, I can display it in black and white. But I would like to display it with colors, to get my real map, but viewed in 3D. Anyone knows which preset I need to use ???

Thank you for any answer and help

Thierry

ThGonon · January 2, 2017, 08:24

So, by unchecking Map Scalars (it can't be seen directly, you have to search for Map Sca... in the Properties panel), I get quite good colors... But !! My blues are red and res appear blue !!! but the other colors are ok... So is there something wrong when exporting from GRASS ???

ThGonon · January 3, 2017, 03:16

Just a last message on this topic, to say that there's no coloring problem in fact... I just made a mistake in GRASS, before exporting... So, be very careful in naming your bands in GRASS !!!

filipedireito · January 3, 2017, 14:29

In paraview you have the option "invert transfer function".

ThGonon · January 3, 2017, 15:26

Thanks for your reply... I saw this function before, but it wasn't solving my problem... It was just a mistake on my side !

January 2, 2017, 06:06	Manage 'natural' colors for a map drapped over a DEM	#1
ThGonon New Member Thierry Gonon Join Date: Jan 2017 Posts: 4 Rep Power: 9	Dear all, First, I wish you an happy new year. I'm posting here because I need to display a map drapped over a DEM in Paraview, exported from GRASS7. Using the Grayscale preset, on RGB_Image Magnitude, I can display it in black and white. But I would like to display it with colors, to get my real map, but viewed in 3D. Anyone knows which preset I need to use ??? Thank you for any answer and help Thierry

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January 2, 2017, 08:24		#2
ThGonon New Member Thierry Gonon Join Date: Jan 2017 Posts: 4 Rep Power: 9	So, by unchecking Map Scalars (it can't be seen directly, you have to search for Map Sca... in the Properties panel), I get quite good colors... But !! My blues are red and res appear blue !!! but the other colors are ok... So is there something wrong when exporting from GRASS ???

January 3, 2017, 03:16		#3
ThGonon New Member Thierry Gonon Join Date: Jan 2017 Posts: 4 Rep Power: 9	Just a last message on this topic, to say that there's no coloring problem in fact... I just made a mistake in GRASS, before exporting... So, be very careful in naming your bands in GRASS !!!

January 3, 2017, 14:29		#4
filipedireito New Member Filipe Direito Join Date: Mar 2010 Location: Porto, PORTUGAL Posts: 9 Rep Power: 16	In paraview you have the option "invert transfer function".

January 3, 2017, 15:26		#5
ThGonon New Member Thierry Gonon Join Date: Jan 2017 Posts: 4 Rep Power: 9	Thanks for your reply... I saw this function before, but it wasn't solving my problem... It was just a mistake on my side !