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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">Hi Milena,<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">You can use the
<b>Rescale Raster</b> function in QGIS, you can get this by typing <b>Rescale </b>
into the <b>Processing Toolbox.<o:p></o:p></b></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Set your
<b>Minimum value</b> (in your case 0), your <b>Maximum Value</b> (in your case 1), specify your NoData Value (if required) specify a location to save the output and click
<b>Run</b><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">Hope that helps, Regards,<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">Richard<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"><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"><o:p> </o:p></span></p>
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——</span><br>
<span style="FONT-FAMILY: Arial, sans-serif; FONT-WEIGHT: bold; COLOR: #004d44">Richard McDonnell MSc GIS, FME Certified Professional</span><br>
<span style="FONT-FAMILY: Arial, sans-serif; COLOR: #004d44"><i>FRM Data Management</i></span><br>
<br>
<span style="FONT-FAMILY: Arial, sans-serif; COLOR: #004d44">——</span><br>
<span style="FONT-FAMILY: Arial, sans-serif; FONT-WEIGHT: bold; COLOR: #004d44">Oifig na nOibreacha Poiblí</span><br>
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<br>
<span style="FONT-FAMILY: Arial, sans-serif; FONT-WEIGHT: bold; COLOR: #565148">Sráid Jonathan Swift, Baile Átha Troim, Co na Mí, C15 NX36
</span><br>
<span style="FONT-FAMILY: Arial, sans-serif; COLOR: #565148">Jonathan Swift Street, Trim, Co Meath, C15 NX36</span><br>
<span style="FONT-FAMILY: Arial, sans-serif; COLOR: #565148">——</span><br>
<span style="FONT-FAMILY: Arial, sans-serif; COLOR: #565148">M +353 87 688 5964 T +353 1 647 6543</span><br>
<a href="https://gov.ie/opw">https://gov.ie/opw</a><br>
<br>
<span style="FONT-FAMILY: Arial, sans-serif; COLOR: #004d44">——<br>
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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"> Qgis-user <qgis-user-bounces@lists.osgeo.org>
<b>On Behalf Of </b>Milena Muehler<br>
<b>Sent:</b> 24 March 2021 08:38<br>
<b>To:</b> qgis-user@lists.osgeo.org<br>
<b>Subject:</b> [Qgis-user] merging raster layer<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"><span style="font-family:"Helvetica Neue",serif">Hi,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">I'm a newcomer and use raster layers for my current analysis.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">I would like to combine / proceed additions / merge all layers but I need to make the values uniform right? <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">I have a layer whose values are scaled so that the values are scaled from 0-1. (0 = no land modification 1 = high land modification).<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">the other layer, for example population density, has simple values from a minimum of 0 to a maximum of 650,000 per pixel (for population density). I also want to scale this layer to a
0-1 metric scale.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">All layers should have values from a minimum of 0 to a maximum of 1.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">Is that possible, and if so, via which function?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">As you can see, I am a total beginner and have not yet had any contact with QGIS or GIS data in general.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">Thank you so much <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">best regards<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">Milena<o:p></o:p></span></p>
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