<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Verdana;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin-top:0cm;
margin-right:0cm;
margin-bottom:8.0pt;
margin-left:0cm;
line-height:106%;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.E-MailFormatvorlage17
{mso-style-type:personal-compose;
font-family:"Verdana",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 2.0cm 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=DE link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hello list,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I have trouble selecting line features using their location compared to a polygon layer using v.select. The line features I want to select from are parcel borders, and the polygon layer is made up of tubular-shaped buffers around municipal borders. I need to find the parcel borders which are inside this buffer.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>The command line in a Python script I use is:<o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US>grass.run_command('v.select', ainput='temp5', atype='line', binput='buff', blayer=1, btype='area', output='grenz', operator='within', overwrite=True)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>The process starts, but it runs incredibly slow (> 15 min) and it brings not the desired result (but trash data). When I start it in the GRASS ui, it also works very very slow.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I have only about 2000 parcel borders, so it cannot be a problem of too much features. Furthermore, the exact same selection task is processed in QGIS 3 in a second with perfect results.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I used v.build on both maps before v.select, but it does not help.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I would like to perform it in GRASS because it is part of a bigger data preparation script which makes my work a lot easier. So I need to integrate it here rather than selecting in QGIS manually.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Thanks for help,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Uwe<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=aa-ET style='font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div></body></html>