<div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Jul 22, 2014 at 10:46 PM, <span dir="ltr"><<a href="mailto:Raphael.Viscarra-Rossel@csiro.au" target="_blank">Raphael.Viscarra-Rossel@csiro.au</a>></span> wrote:<br>
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<div>Thank you Daniel and Anna for the suggestions.</div>
<div>Daniel, I wonder how I might display the ‘common’ colour legend when visualising the maps? </div>
<div>When the maps are visualised, the colour legend changes to the min max of the current map displayed.</div></div></div></blockquote><div> </div><div>Look at range option. You have to know the min/max values though. I am not sure what's the best option in grass64. r.series would work but it creates maps which is unnecessary.</div>
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<div>Anna, I use GRASS 6.4.2 – so I guess I should upgrade…</div></div></div></blockquote><div><br></div><div>I would recommend that. </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div>Thank you again.</div>
<div>Raphael.</div>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10pt;font-family:'Century Gothic';color:rgb(84,141,212)">Raphael
<b>VISCARRA ROSSEL</b> | Principal Research Scientist | CSIRO Land and Water | Bruce E. Butler Laboratory, Clunies Ross St, Black Mountain, Acton ACT 2601 | PO BOX 1666 Canberra ACT 2600 | t. <a href="tel:%2B61%202%206246%205945" value="+61262465945" target="_blank">+61 2 6246 5945</a> | m. <a href="tel:%2B61%20467%20769%20364" value="+61467769364" target="_blank">+61 467 769 364</a> | Chair International Union
of Soil Science Working Group on Proximal Soil Sensing | <a href="http://www.researcherid.com/rid/B-4061-2011" target="_blank">www.researcherid.com/rid/B-4061-2011</a> | <a href="http://scholar.google.com.au/citations?hl=en&user=KpJdvKEAAAAJ" target="_blank">scholar.google.com.au/citations?hl=en&user=KpJdvKEAAAAJ</a></span></p>
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<span style="font-weight:bold">From: </span>Anna Petrášová <<a href="mailto:kratochanna@gmail.com" target="_blank">kratochanna@gmail.com</a>><br>
<span style="font-weight:bold">Date: </span>Wednesday, 23 July 2014 12:15 pm<br>
<span style="font-weight:bold">To: </span>Daniel Victoria <<a href="mailto:daniel.victoria@gmail.com" target="_blank">daniel.victoria@gmail.com</a>><br>
<span style="font-weight:bold">Cc: </span>"Viscarra Rossel, Raphael (L&W, Black Mountain)" <<a href="mailto:Raphael.Viscarra-Rossel@csiro.au" target="_blank">Raphael.Viscarra-Rossel@csiro.au</a>>, grass <<a href="mailto:grass-user@lists.osgeo.org" target="_blank">grass-user@lists.osgeo.org</a>><br>
<span style="font-weight:bold">Subject: </span>Re: [GRASS-user] create a common colour scale<br>
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<div dir="ltr">Hi,
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<div>in case you use GRASS 7, r.colors accepts multiple maps or a file with the map names. So this should do it:</div>
<div>r.colors map=precip1,precip2,precip3 color=precipitation</div>
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<div>Also, have a look at temporal modules (GRASS 7 only). You can register the series of maps as a dataset (t.create, t.register) and then you can easily get the min, max values for the entire series and there is also t.rast.colors.</div>
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<div>Anna<br>
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<div class="gmail_quote">On Tue, Jul 22, 2014 at 9:41 PM, Daniel Victoria <span dir="ltr">
<<a href="mailto:daniel.victoria@gmail.com" target="_blank">daniel.victoria@gmail.com</a>></span> wrote:<br>
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<div>Hi Raphael,<br>
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This is what I did some time ago when I had the same problem<br>
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1) Find out the overall minimun and maximum precipitation over all maps.<br>
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2) Use r.colors with the rules option to compose a colortable that cover my entire precip range.<br>
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3) Apply the same colortable to all maps<br>
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4) plot and be happy<br>
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Hope it helps<br>
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Daniel<br>
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<div>On Tue, Jul 22, 2014 at 10:01 PM, <span dir="ltr"><<a href="mailto:Raphael.Viscarra-Rossel@csiro.au" target="_blank">Raphael.Viscarra-Rossel@csiro.au</a>></span> wrote:<br>
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<div>Hello</div>
<div>I wonder if anyone knows how to create a common colour scale for different raster maps?</div>
<div>I want to display all six maps on the same page with the single colour scale but I cannot find how to do this in GRASS.</div>
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<div>More specifically, I have six raster maps of rainfall for different time periods (each has a different range of values) and I would like to display them all with the same colour scale. The colour scale needs to be constructed using the min and max values
of the set of six maps (and not just individual maps.</div>
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<div>Will appreciate any input please. Thank you,</div>
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<div>Raphael.</div>
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<p class="MsoNormal"><span style="font-size:10pt;font-family:'Century Gothic';color:rgb(84,141,212)" lang="EN-US">Raphael
<b>VISCARRA ROSSEL</b> | Principal Research Scientist | CSIRO Land and Water | Bruce E. Butler Laboratory, Clunies Ross St, Black Mountain, Acton ACT 2601 | PO BOX 1666 Canberra ACT 2600 | t.
<a href="tel:%2B61%202%206246%205945" value="+61262465945" target="_blank">+61 2 6246 5945</a> | m.
<a href="tel:%2B61%20467%20769%20364" value="+61467769364" target="_blank">+61 467 769 364</a> | Chair International Union of Soil Science Working Group on Proximal Soil Sensing |
<a href="http://www.researcherid.com/rid/B-4061-2011" target="_blank">www.researcherid.com/rid/B-4061-2011</a> |
<a href="http://scholar.google.com.au/citations?hl=en&user=KpJdvKEAAAAJ" target="_blank">
scholar.google.com.au/citations?hl=en&user=KpJdvKEAAAAJ</a></span></p>
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