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<p>Hi Nicholas:</p>
<p>If you activate the various providers under the Processing
toolbox options, you can have direct access to the various
algorithms I mentioned. I often generate a quick general model,
export as a python script and then refine the script as required.</p>
<p>I am running 3.16.2-Hannover.</p>
<p>Kirk<br>
</p>
<p>On 2/25/2021 9:26 PM, Nicolas Cadieux wrote:<br>
</p>
<blockquote type="cite"
cite="mid:591D18F0-CFF8-4074-BE93-8F594000578E@gmail.com">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"
moz-do-not-send="true">https://gitlab.com/njacadieux</a></div>
</div>
<div dir="ltr"><br>
<blockquote type="cite">Le 25 févr. 2021 à 15:44, Kirk
Schmidt <a class="moz-txt-link-rfc2396E" href="mailto:kirk@nortekresources.com"><kirk@nortekresources.com></a> a écrit :<br>
<br>
</blockquote>
</div>
<blockquote type="cite">
<div dir="ltr">
<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>
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</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 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" moz-do-not-send="true">kirk@nortekresources.com</a>
Web: <a class="moz-txt-link-abbreviated" href="http://www.nortekresources.com" moz-do-not-send="true">www.nortekresources.com</a></pre>
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</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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