<p dir="ltr">Hi,<br>
Could it be that for your layer, 0 = null? In that case, could this be the source of the problem? Try changing the null value to test... Just an idea.</p>
<p dir="ltr">Nicolas Cadieux M.Sc.<br>
Les Entreprises Archéotec inc. <br>
8548, rue Saint-Denis Montréal H2P 2H2<br>
Téléphone: 514.381.5112 Fax: 514.381.4995<br>
www.archeotec.ca</p>
<div class="gmail_quote">Le 2015-03-24 10:24, "george-silva [via OSGeo.org]" <<a href="/user/SendEmail.jtp?type=node&node=5195208&i=0" target="_top" rel="nofollow" link="external">[hidden email]</a>> a écrit :<br type='attribution'><blockquote style='border-left:2px solid #CCCCCC;padding:0 1em' class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div><div><div><div><div><div>Hello everyone,<br /><br /></div>It seems that we have a bug on raster calculator. I tried searching the web for this, but here's the story:<br /><br /></div>I'm developing a plugin that makes extensive use of the raster calculator. So far so good. I can enter my custom expressions and it seems to be working fine.<br /><br /></div>However one of my formulas contains a LN (natural log). So, to test this properly I've created a raster all with 1 value. The LN for 1 is 0, so the whole raster should be zeroed.<br /><br /></div><div>The raster calculator, even while programming or using the software, tells me that the expression is valid.<br /></div><div><br /></div>That's not the case.<br /><br /></div>Questions:<br /><br /></div>1) Is LN not implemented in the raster calculator? Is implemented? What is the syntax? Is it documented? <br clear="all" /><div><div><div><div><div><div><div><br /></div><div>2) Workarounds?<br /><br /></div><div>Is it a bug? I'm trying to look my redmine password so I can file a bug or contribute with documents for testing.<br /><br /></div><div>Thanks<br /><br /></div><div>George<br /></div><div><br />-- <br /><div><div dir="ltr">George R. C. Silva<br />SIGMA Consultoria<div>----------------------------<br /><div><a href="http://www.consultoriasigma.com.br/" target="_top" rel="nofollow" link="external">http://www.consultoriasigma.com.br/</a><div style="padding:0px;margin-left:0px;margin-top:0px;word-wrap:break-word;color:black;font-size:10px;text-align:left;line-height:130%"></div><div style="padding:0px;margin-left:0px;margin-top:0px;word-wrap:break-word;color:black;font-size:10px;text-align:left;line-height:130%"></div><div style="padding:0px;margin-left:0px;margin-top:0px;word-wrap:break-word;color:black;font-size:10px;text-align:left;line-height:130%"></div></div></div></div></div>
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