<div dir="ltr">Hi,<div><br></div><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><div>
<br></div><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>
<div><br></div><div>Anna<br><div class="gmail_extra"><br><br><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>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div><div><div><div>Hi Raphael,<br><br></div>This is what I did some time ago when I had the same problem<br>
</div>1) Find out the overall minimun and maximum precipitation over all maps.<br></div>
2) Use r.colors with the rules option to compose a colortable that cover my entire precip range.<br></div>3) Apply the same colortable to all maps<br></div>4) plot and be happy<br><br></div>Hope it helps<br></div>Daniel<br>
</div><div class="gmail_extra"><br><br><div class="gmail_quote"><div><div class="h5">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>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word;color:rgb(0,0,0);font-size:13px;font-family:'Century Gothic',sans-serif"><div><div class="h5">
<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>
<div><br>
</div>
<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>
<div><br>
</div>
<div>Will appreciate any input please. Thank you,</div>
<div><br>
</div>
<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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