<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Interesting Kirk,<div><br><div>The QGIS vector to raster conversion is not available in the graphical modeler or do you have another reason behind your solution? I don’t use much the graphical modeler so I appreciate your incite.</div><div><br></div><div>Cheers!<br><br><div dir="ltr">Nicolas Cadieux<div><a href="https://gitlab.com/njacadieux">https://gitlab.com/njacadieux</a></div></div><div dir="ltr"><br><blockquote type="cite">Le 25 févr. 2021 à 15:44, Kirk Schmidt <kirk@nortekresources.com> a écrit :<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
  
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    <p>To add to Nicolas" comment:</p>
    <p>1) Create your point layer from a csv (easting, northing id) as a
      minimum</p>
    <p>2) If you want to stay with process modeler, use the
      SAGA>Raster creation tools> Rasterize Algorithm to convert
      the point layer to your required resolution and size</p>
    <p>3) Use the  GDAL>Raster Analysis>Proximity or
      SAGA>Raster tools> Proximity Raster  to create your output.</p>
    <p>Kirk Schmidt<br>
    </p>
    <div class="moz-cite-prefix">On 2/25/2021 4:24 PM, Nicolas Cadieux
      wrote:<br>
    </div>
    <blockquote type="cite" cite="mid:6709fef4-1ae0-2a4f-f6d9-c4a909d17016@gmail.com">
      <p>Hi,</p>
      <p>You can cut down you use of several plugins by doing the
        following,</p>
      <p>1) Create a vector point file with a single point having the
        numerical field containing the value 1.  This file could be a
        csv containing WKT.<br>
      </p>
      <p>2) Use the vector to raster conversion.  (This will take your
        vector point file, an create a raster of x,y dimensions.  You
        point will become 1 and all other values will be 0.</p>
      <p>3) Use the Proximity raster distance gdal function.</p>
      <p>This requires no plugins so it should be easy to create a
        graphical modeler.  My favorite way would be to go to strait
        Python and to call the gdal proximity function from my Python
        script.  If you had hundred or thousands of these to do, I could
        develop a Python script that could automate the entire thing.  
        Contact me if you have questions.<br>
      </p>
      <p>Nicolas Cadieux</p>
      <p> <br>
      </p>
      <div class="moz-cite-prefix">On 2021-02-25 12:58 p.m., Fabio
        Falchi wrote:<br>
      </div>
      <blockquote type="cite" cite="mid:1815227708.4326746.1614275927041@mail.yahoo.com">
        <div class="ydp1f6623d7yahoo-style-wrap">
          <div><br>
          </div>
          <div dir="ltr" data-setdir="false">
            <div>
              <div class="ydpf1472d4cmsg-body ydpf1472d4cP_wpofO
                ydpf1472d4cmq_AS" data-test-id="message-view-body-content">
                <div class="ydpf1472d4cjb_0 ydpf1472d4cX_6MGW
                  ydpf1472d4cN_6Fd5">
                  <div>
                    <div id="ydpf1472d4cyiv3016035406">
                      <div>
                        <div class="ydpf1472d4cyiv3016035406yahoo-style-wrap">
                          <div dir="ltr">Dear all,</div>
                          <div dir="ltr"><br>
                          </div>
                          <div dir="ltr" data-setdir="false">not having
                            received any answer, I repeat the request.<br>
                          </div>
                          <div dir="ltr">I need to speed up the process
                            of obtaining rasters with distances from a
                            single point (or a single lat-lon
                            coordinate) in it. Manually I use this
                            procedure:</div>
                          <div dir="ltr">With a georeferenced raster in
                            a UTM projection I use raster calculator to
                            obtain a raster with all pixels set to zero.
                            Then, with Serval plug-in, I manually set to
                            1 the value of the pixel in the wanted
                            position (either by using a satellite
                            overlay or by using a point vector layer
                            with the appropriate coordinates). Then I
                            use the proximity function under
                            Raster>Analisys menu.</div>
                          <div dir="ltr">I want to make this via the
                            Graphical Modeler, in order to be able to
                            make the process fast and skip the manual
                            introduction with Serval plug-in. At the
                            very least, I need a mode to put the value 1
                            in the pixel of the selected null raster in
                            the position givel by lat-lon coordinates. <br>
                          </div>
                          <div dir="ltr">Thank you!</div>
                          <div dir="ltr">Best,</div>
                          <div dir="ltr">Fabio Falchi</div>
                          <div dir="ltr"><br>
                          </div>
                          <div dir="ltr">
                            <div>
                              <p class="ydpf1472d4cyiv3016035406ydp3a68e8daox-fa029a8a82-default-style"><em><span>USC
                                    - Universidade de Santiago de
                                    Compostela</span></em></p>
                              <p class="ydpf1472d4cyiv3016035406ydp3a68e8daox-fa029a8a82-default-style"><em><span>ISTIL
                                    - Light Pollution Science and
                                    Technology Institute</span></em></p>
                            </div>
                          </div>
                        </div>
                      </div>
                    </div>
                  </div>
                </div>
              </div>
            </div>
            <div><br>
            </div>
          </div>
        </div>
        <div id="yahoo_quoted_4660745305" class="yahoo_quoted">
          <div>
            <div> Il sabato 20 febbraio 2021, 18:04:14 CET, Fabio Falchi
              <a class="moz-txt-link-rfc2396E" href="mailto:fabio_falchi@yahoo.it" moz-do-not-send="true"><fabio_falchi@yahoo.it></a>
              ha scritto: </div>
            <div><br>
            </div>
            <div><br>
            </div>
            <div>
              <div id="yiv3016035406">
                <div>
                  <div class="yiv3016035406yahoo-style-wrap">
                    <div dir="ltr">Dear all,</div>
                    <div dir="ltr"><br>
                    </div>
                    <div dir="ltr">I need to speed up the process of
                      obtaining rasters with distances from a single
                      point in it. Manually I use this procedure:</div>
                    <div dir="ltr">With a georeferenced raster in a UTM
                      projection I use raster calculator to obtain a
                      raster with all pixels set to zero. Then, with
                      Serval plug-in, I manually set to 1 the value of
                      the pixel in the wanted position (either by using
                      a satellite overlay or by using a point vector
                      layer with the appropriate coordinates). Then I
                      use the proximity function under
                      Raster>Analisys menu.</div>
                    <div dir="ltr">I want to make this via the Graphical
                      Modeler, in order to be able to make the process
                      fast and skip the manual introduction with Serval
                      plug-in. At the very least, I need a mode to put
                      the value 1 in the pixel of the selected null
                      raster in the position givel by lat-lon
                      coordinates. <br>
                    </div>
                    <div dir="ltr">Thank you!</div>
                    <div dir="ltr">Best,</div>
                    <div dir="ltr">Fabio Falchi</div>
                    <div dir="ltr"><br>
                    </div>
                    <div dir="ltr">
                      <div>
                        <p class="yiv3016035406ydp3a68e8daox-fa029a8a82-default-style"><em><span>USC
                              - Universidade de Santiago de Compostela</span></em></p>
                        <p class="yiv3016035406ydp3a68e8daox-fa029a8a82-default-style"><em><span>ISTIL
                              - Light Pollution Science and Technology
                              Institute</span></em></p>
                      </div>
                    </div>
                  </div>
                </div>
              </div>
            </div>
          </div>
        </div>
        <br>
        <fieldset class="mimeAttachmentHeader"></fieldset>
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</pre>
      </blockquote>
      <pre class="moz-signature" cols="72">-- 
Nicolas Cadieux
<a class="moz-txt-link-freetext" href="https://gitlab.com/njacadieux" moz-do-not-send="true">https://gitlab.com/njacadieux</a></pre>
      <br>
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</pre>
    </blockquote>
    <pre class="moz-signature" cols="72">-- 
Kirk Schmidt, MScF, BScF, RPF
General Manager
Nortek Resource Solutions Inc.
RR # 1
Thorburn, NS
B0K 1W0
Tel (902) 922.3607
Email: <a class="moz-txt-link-abbreviated" href="mailto:kirk@nortekresources.com">kirk@nortekresources.com</a>
Web: <a class="moz-txt-link-abbreviated" href="http://www.nortekresources.com">www.nortekresources.com</a></pre>
  

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