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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Dear Brent,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Yes that works for me too !<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Sometimes I look for what is familiar and overlook the obvious – a little embarrassing, but I know now .<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Many thanks<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Darrel<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Brent Wood [mailto:pcreso@yahoo.com]
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<b>Sent:</b> 27 November 2015 21:53<br>
<b>To:</b> PostGIS Users Discussion <postgis-users@lists.osgeo.org>; Darrel Maddy <darrel.maddy@newcastle.ac.uk><br>
<b>Subject:</b> Re: [postgis-users] Help with SQL query?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Verdana",sans-serif;color:black">Darrel<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Verdana",sans-serif;color:black">You can use the logical operators in the QGIS raster calculator as a binary conditional :<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Verdana",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Verdana",sans-serif;color:black">eg: raster a is used to generate a new raster with default 0, but pixel value=1 where pixels in a have a value >300... use the following operation<o:p></o:p></span></p>
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<pre style="margin-bottom:12.0pt;background:white" id="yui_3_16_0_1_1448654630060_50162"><code id="yui_3_16_0_1_1448654630060_50164"><span style="color:black">(a > 300.0)</span></code><span style="color:black"><br><br></span><code><span style="font-family:"Verdana",sans-serif;color:black">Save the result as a grid rather than a image. It works for me....</span></code><span style="color:black"><o:p></o:p></span></pre>
<p class="MsoNormal" style="background:white"><span style="font-family:"Verdana",sans-serif;color:black">Brent<o:p></o:p></span></p>
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