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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Hi Mariana,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">You might have in invalid geometry.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">One of your polygon have a selfintersection.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Try to control your polygons with the topologychecker.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Vector>Topologychecker>Configure<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Choose the layer >Choose ‘Must not have invalid geometries’<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Click Add Rule<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Click Show Errors<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Click Validate All<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif""><a href="https://www.youtube.com/watch?v=_GK2ll_TcQo">https://www.youtube.com/watch?v=_GK2ll_TcQo</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Lene Fischer<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Fra:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Qgis-user [mailto:qgis-user-bounces@lists.osgeo.org]
<b>På vegne af </b>Mariana Buzzi<br>
<b>Sendt:</b> 19. januar 2016 04:29<br>
<b>Til:</b> Ramon Andiñach<br>
<b>Cc:</b> qgis-user@lists.osgeo.org<br>
<b>Emne:</b> Re: [Qgis-user] Problems with clipper and snappin options<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p>Hi Ramon!<br>
I check to the CRS and this is right!i can't use the clip option,may be is because I did the mask with the option raster to vectorial. I don't know!!!!what can I do?<br>
I can do the advance digital!!!!<br>
Thanks so much!!!!<br>
Regards <br>
Mariana<o:p></o:p></p>
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<p class="MsoNormal">El 18/01/2016 03:44, "Ramon Andiñach" <<a href="mailto:custard@westnet.com.au">custard@westnet.com.au</a>> escribió:<o:p></o:p></p>
<p class="MsoNormal">Hi,<br>
I think the listsever has (deliberately) dropped your images.<br>
<br>
Two suggestions:<br>
1. Can you check and make sure that both your layers have the same CRS?<br>
If they aren't your first move should be to save one of the layers so they have the same CRS.<br>
<br>
2. On the snapping settings, change the snapping mode to "Advanced" (Avanzado?). This allows you to set options for individual layers.<br>
<br>
Hope this helps.<br>
<br>
-ramon.<br>
<br>
> On 18 Jan 2016, at 13:17, Mariana Buzzi <<a href="mailto:marianabuzzi86@gmail.com">marianabuzzi86@gmail.com</a>> wrote:<br>
><br>
> Good night people!<br>
> I'm making masks that correspond to landscape units (LU). The polygon corresponds to the LU called pampas. This polygon was done through the creation of a vector and scanned with mouse function of landscape features shape. As you can see, my first problem
emerges at that I can not cut the pampa (light blue) with clipper program.<br>
> The second problem arises with me snnapping options. I need to do two polygons .. rudimentary scanning did not want to, but I wanted to use the snapping options so that the edges are accurate. But I could not.<br>
><br>
> I hope you can help me.<br>
> Thank you.<br>
> A big hello from Patagonia.<br>
> Mariana<br>
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