<div dir="ltr">Yeah, I also tried that, and of course, I get a nice gradient in the legend, but then I need to somehow edit tick-marks. <div>Logarithm of chlorophyll concentration is, from my point of view, uninformative. I need the actual values. </div>
<div>I just want to change the display of the legend, like making log of x or y axis in a plot, that you do not change the </div><div>values themselves, just rescale the axis for better visualization... but maybe not (yet) possible in GRASS ;)</div>
<div><br></div><div style>Thanks much!</div><div style>Vero <br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">2014-06-10 7:40 GMT-03:00 Daniel Victoria <span dir="ltr"><<a href="mailto:daniel.victoria@gmail.com" target="_blank">daniel.victoria@gmail.com</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">What if you use r.mapcalc and apply log to your map to make a new one with rescaled values? </p>
<div class="gmail_quote"><div><div class="h5">On Jun 9, 2014 12:36 PM, "Veronica Andreo" <<a href="mailto:veroandreo@gmail.com" target="_blank">veroandreo@gmail.com</a>> wrote:<br type="attribution"></div>
</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">
<div dir="ltr"><div>Hi list!</div><div><br></div><div>I have these raster maps of chlorophyll concentration (mg/m3) with a lot of very small values (from 0.02 to 1.5) and few high values (between 20 and 100)... I managed to create my own color table to get a good visualization of the variation... but when I display the legend, i loose the color variation in smaller values... </div>
<div><br></div><div>Is it possible to create a logarithmic legend or at least determine which tick-marks I'm interested in?? I've tried with "use" parameter in d.legend (which seemed to meet my needs) setting it to: 0.01,0.1,1,10,100, but works only for categories... There's no such a thing in ps.map, either... which would be the right approach? any ideas? </div>
<div><br></div><div>Thanks much in advance!</div><div>Best, </div><div><br></div><div>Vero</div></div>
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