Hi GRASSers, I have a line vector representing survey transects, and I need to split it into segments based on elevation (say, 100 m height difference). After scavenging the list archives and some googling I'm trying to do like that
generate contours from a DEM (r.contour) generate a 10 m buffer along each transect line (v.buffer) clip contours with the buffer (v.overlay) merge transects with clipped contours (v.patch) get intersections (v.clean tool=break err=intersections) put intersections into ASCII format (v.out ascii intersections) pipe intersections to v.segment Anyway, it seems quite a long way... maybe I'm wrong! Anyone has hints/suggestions? -- Any circuit design must contain at least one part which is obsolete, two parts which are unobtainable, and three parts which are still under development. ----------------------------------------------------------- Damiano G. Preatoni, PhD Unità di Analisi e Gestione delle Risorse Ambientali Dipartimento Ambiente-Salute-Sicurezza Università degli Studi dell'Insubria Via J.H. Dunant, 3 - 21100 Varese (ITALY) tel +39 0332421538 fax +39 0332421446 http://biocenosi.dipbsf.uninsubria.it/ ICQ: 78690321 jabber: [EMAIL PROTECTED] skype: prea.net ------------------------------------------------------------------------------- Please consider the environment before printing this email ------------------------------------------------------------------------------- Per favore non mandatemi allegati in formati proprietari Please do not send attachments in proprietary formats (Word, Excel, PowerPoint, etc.) Meglio usare formati standaridzzati e documentati Better use standard open formats (.odt, .txt, .html, .pdf, .shp, dump SQL) http://www.gnu.org/philosophy/no-word-attachments.html Standard UNI CEI ISO/IEC 26300:2007 ------------------------------------------------------------------------------- O< ascii ribbon campaign - stop html mail - http://www.asciiribbon.org
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