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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US">Hi Moritz,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US">Does the below make sense?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US">Perhaps I have connected the point and line vectors incorrectly?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US">Josh<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;text-transform:uppercase">JOSHUA GEOGHEGAN |</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#003057"> GIS Specialist</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Joshua Geoghegan
<br>
<b>Sent:</b> Wednesday, 24 November 2021 10:24 AM<br>
<b>To:</b> Moritz Lennert <mlennert@club.worldonline.be>; grass-user@lists.osgeo.org<br>
<b>Subject:</b> RE: [GRASS-user] Grass Graphic Model v.net.distance Not Accepting point layer in From or To fields<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US">Hi Moritz,<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US">When I set it to layer 2 (which is the point layer I connected) and close the v.net.distance dialog, and reopen it I see the form reload and it switches back to 1.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US">I also try to create the where clause and now it says no table linked to layer 2 even though I linked it with v.db.connect.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US">I tried connecting the attribute table to the same vector for the points, as well as trying connecting to the linked point/network vector.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US">Am I missing a step perhaps? Is the attribute table coming straight from the shapefile I am importing?<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><img border="0" width="443" height="228" style="width:4.6145in;height:2.375in" id="Picture_x0020_1" src="cid:image009.png@01D7E2CD.869D5570"><span style="mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US">Below are the steps up until v.net.distance, with my network being cleaned up beforehand.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US">The highlighted section is where I import the points up until the v.net.distance.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US">I probably don’t need the v.db.addtable. That was there so I could populate the distance for each route but I guess v.net.distance outputs that.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US">It still didn’t work when I removed that.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US">Hopefully that makes sense.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><img border="0" width="1268" height="138" style="width:13.2083in;height:1.4375in" id="Picture_x0020_3" src="cid:image010.png@01D7E2CD.869D5570"><span style="mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText">JOSHUA GEOGHEGAN | GIS Specialist | MORNINGTON PENINSULA SHIRE
<o:p></o:p></p>
<p class="MsoPlainText">Phone: 03 5950 1321 <o:p></o:p></p>
<p class="MsoPlainText">Email: <a href="mailto:joshua.geoghegan@mornpen.vic.gov.au">
joshua.geoghegan@mornpen.vic.gov.au</a><o:p></o:p></p>
<p class="MsoPlainText">Private Bag 1000, Rosebud VIC 3939 | 90 Besgrove Street, Rosebud VIC 3939<o:p></o:p></p>
<p class="MsoPlainText"><a href="http://www.mornpen.vic.gov.au">www.mornpen.vic.gov.au</a> | Twitter @MornPenShire | Facebook @MornPenShire<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Mornington Peninsula Shire acknowledges and pays respect to the Bunurong/Boon Wurrung people,<o:p></o:p></p>
<p class="MsoPlainText"><span style="mso-fareast-language:EN-US">the Traditional Custodians of these lands and waters.</span><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-US">-----Original Message-----<br>
From: Moritz Lennert <<a href="mailto:mlennert@club.worldonline.be">mlennert@club.worldonline.be</a>>
<br>
Sent: Tuesday, 23 November 2021 6:07 PM<br>
To: Joshua Geoghegan <<a href="mailto:joshua.geoghegan@mornpen.vic.gov.au">joshua.geoghegan@mornpen.vic.gov.au</a>>;
<a href="mailto:grass-user@lists.osgeo.org">grass-user@lists.osgeo.org</a><br>
Subject: RE: [GRASS-user] Grass Graphic Model v.net.distance Not Accepting point layer in From or To fields</span><o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Hi Joshua,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Le 23 novembre 2021 01:45:14 GMT+01:00, Joshua Geoghegan <<a href="mailto:joshua.geoghegan@mornpen.vic.gov.au"><span style="color:windowtext;text-decoration:none">joshua.geoghegan@mornpen.vic.gov.au</span></a>> a écrit :<o:p></o:p></p>
<p class="MsoPlainText">>Thanks Moritz,<o:p></o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">>What would be the reason behind the point layer switching back to layer 1 in v.net.distance if I have linked the point and network?<o:p></o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">>I'll test your two options in the meantime, but it still switches back to layer 1.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">I'm not sure I understand what you mean by "switching back". Most modules have layer=1as the default setting. That doesn't mean that the specific layer you work on does not have other layers. Have you checked whether you can set it to
layer=2 ?<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">To help you, we would need some more info:<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">- What is the exact command you use to connect the lines and the points ?<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">- What is the output of v.category with option=report on the resulting file ?<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Moritz<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">>[<a href="cid:image001.png@01D7E05F.93540130"><span style="color:windowtext;text-decoration:none">cid:image001.png@01D7E05F.93540130</span></a>]<o:p></o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">>Regards,<o:p></o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">>JOSHUA GEOGHEGAN | GIS Specialist | MORNINGTON PENINSULA SHIRE<o:p></o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">>Phone: 03 5950 1321<o:p></o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">>Email: <a href="mailto:joshua.geoghegan@mornpen.vic.gov.au">
<span style="color:windowtext;text-decoration:none">joshua.geoghegan@mornpen.vic.gov.au</span></a><o:p></o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">>Private Bag 1000, Rosebud VIC 3939 | 90 Besgrove Street, Rosebud VIC 3939<o:p></o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><a href="http://www.mornpen.vic.gov.au"><span style="color:windowtext;text-decoration:none">www.mornpen.vic.gov.au</span></a> | Twitter @MornPenShire | Facebook @MornPenShire<o:p></o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">>Mornington Peninsula Shire acknowledges and pays respect to the Bunurong/Boon Wurrung people,<o:p></o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">>the Traditional Custodians of these lands and waters.<o:p></o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">>-----Original Message-----<o:p></o:p></p>
<p class="MsoPlainText">>From: Moritz Lennert <<a href="mailto:mlennert@club.worldonline.be"><span style="color:windowtext;text-decoration:none">mlennert@club.worldonline.be</span></a>><o:p></o:p></p>
<p class="MsoPlainText">>Sent: Monday, 22 November 2021 6:32 PM<o:p></o:p></p>
<p class="MsoPlainText">>To: <a href="mailto:grass-user@lists.osgeo.org"><span style="color:windowtext;text-decoration:none">grass-user@lists.osgeo.org</span></a>; Joshua Geoghegan <<a href="mailto:joshua.geoghegan@mornpen.vic.gov.au"><span style="color:windowtext;text-decoration:none">joshua.geoghegan@mornpen.vic.gov.au</span></a>><o:p></o:p></p>
<p class="MsoPlainText">>Subject: Re: [GRASS-user] Grass Graphic Model v.net.distance Not Accepting point layer in From or To fields<o:p></o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">>Hi Joshua,<o:p></o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">>Le 21 novembre 2021 22:12:42 GMT+01:00, Joshua Geoghegan <<a href="mailto:joshua.geoghegan@mornpen.vic.gov.au%3cmailto:joshua.geoghegan@mornpen.vic.gov.au"><span style="color:windowtext;text-decoration:none">joshua.geoghegan@mornpen.vic.gov.au<mailto:joshua.geoghegan@mornpen.vic.gov.au</span></a>>>
a écrit :<o:p></o:p></p>
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<p class="MsoPlainText">>>Hi there,<o:p></o:p></p>
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<p class="MsoPlainText">>>I have been stuck on a problem and I was hoping you could help, as I had no luck on GIS Stack Exchange.<o:p></o:p></p>
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<p class="MsoPlainText">>>I have a point and network layer connected in Grass GIS via the graphic modeler.<o:p></o:p></p>
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<p class="MsoPlainText">>What exactly do you mean by 'the graphic modeler'. I assume you connect the two using v.net ?<o:p></o:p></p>
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<p class="MsoPlainText">>> I am trying to find the shortest path between the first point (ROUND=0) and every other point (ROUND != 0) on the same point layer. For some reason I can select this layer (layer 2) in both From and To tabs and add category 1-500
(which is more than the number of points), but when I try the where clause and test for values in the ROUND field on the SQL Builder the results show up as '', even though the imported shp file has values. When I hit OK and come back into the form it has reverted
back to layer 1 in the From and To tabs, which is road network layer.<o:p></o:p></p>
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<p class="MsoPlainText">>>What could be the issue here?<o:p></o:p></p>
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<p class="MsoPlainText">>As the v.net man page states: "While the arcs created with v.net will retain any attribute information associated with the input vector line/boundary file in data layer 1, nodes created and stored in data layer 2 will not have any associated
attribute information."<o:p></o:p></p>
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<p class="MsoPlainText">>You have two options:<o:p></o:p></p>
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<p class="MsoPlainText">>1) Find out what to the category number of the point is that has ROUND=0 and use that as from_cats, and all the others as to_cats.<o:p></o:p></p>
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<p class="MsoPlainText">>This could be done with v.db.select using columns=cat (assuming the column containing the cat values is called 'cat') and where=ROUND=0.<o:p></o:p></p>
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<p class="MsoPlainText">>2) Connect the attribute table of your original point map to the point layer of the connected network map using v.db.connect and the use the from_where and to_where parameters as you did.<o:p></o:p></p>
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<p class="MsoPlainText">>If any of that is not clear, don't hesitate to come back to us.<o:p></o:p></p>
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<p class="MsoPlainText">>Moritz<o:p></o:p></p>
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