In fact I need to remove some of the closed line according to their length.
Normally v.clean is able to remove small line with a threshold but it is not working for closed lines... I was wondering if there is an easy way to do this. Or maybe is there a possibility to cut the "closed" lines regards ________________________________ De : Rabotin Michael [[email protected]] Envoyé : mercredi 6 novembre 2013 16:54 À : [email protected] Cc : BLANDENIER Lucien Objet : Re: [GRASS-user] How to remove small closed lines Hi, maybe you can identify your closed lines with v.to.db command and the coordinate of the start point and the end point v.to.db map=mylines option=end type=line col=coordEnd v.to.db map=mylines option=start type=line col=coordStart and tests if the coordinates of the startNode and the EndNode are equals, the line is closed and you can tag your lines . And use after the v.extract command to extract only the lines which are not closed. Hope it can be helpful Michael Le 06/11/2013 16:25, [email protected]<mailto:[email protected]> a écrit : Date: Wed, 6 Nov 2013 12:59:29 +0000 From: BLANDENIER Lucien <[email protected]><mailto:[email protected]> To: "[email protected]"<mailto:[email protected]> <[email protected]><mailto:[email protected]> Subject: [GRASS-user] How to remove small closed lines Message-ID: <[email protected]><mailto:[email protected]> Content-Type: text/plain; charset="iso-8859-1" Hi, I would like to know how to remove automatically small circles (closed lines, not area). I've tried with v.clean and v.generalize but I just get to remove line which are not closed. Regards Lucien -- [INRA]<http://www.inra.fr> Michael Rabotin Ingénieur d'Etude SIG / GIS Engineer [email protected]<mailto:#> UMR LISAH - Centre de Montpellier Tèl. : +33 (0)4 99 61 23 85 Mobile : +33 (0)6 76 45 46 83 Fax : +33 (0)4 67 63 26 14 Bat 24 - 2 place Pierre Viala 34060 Montpellier cedex 2 France www.inra.fr<http://www.inra.fr> www.openfluid-project.org<http://www.openfluid-project.org>
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