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Hi, Javier!<br><br>Let me explain:<br>I have a very large vector of rivers, with many CATs. Here in Brazil we have a law that say that, in general, a 30m area aside of rivers should be preserved with trees.<br>Them I look in a high resolution orbital image and where I find a portion river without trees I v.extract that portion of river, v.buffer 30m, v.patch that buffer to larger common vector of buffers, g.remove the buffer and the extracted vector.<br><br>It is not a batch process, but I think it could be indeed scripted, and I would apreciate some help with that.<br><br>Anyway, I still want to discover is if it is possible to pipe grass commands, I don't know much of programing but if I'm not wrong piping mean that the output of an application becomes the input of another application.<br><br>Achim told me not to pipe, but I am a obstinate kind of person (I think most of us are)...<br><br>ops, I almost forgot, in the company I use windows (becouse I can't use linux there), but at home I use Ubuntu linux.<br><br>Regards<br><br>Pablo Torres Carreira
<br><br><br><br><hr id="stopSpelling">From: fjgarciaprieto@hotmail.com<br>To: pablotcarreira@hotmail.com<br>Subject: RE: [GRASS-user] Piping Commands<br>Date: Mon, 23 Nov 2009 19:28:29 +0000<br><br>
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Hi, I'm not an expert or anything else, but maybe I can help you.<br><br>You are using Windows or Linux?<br><br>Sometime ago I have to upload a large number of images (Ortophotos) to grass (more than the command aloud me and I use a Linux script to do that performed over the basis of processing each group of files and then perform another operations on the result.<br><br>Is this what are you looking for?<br><br><hr id="ecxstopSpelling">From: pablotcarreira@hotmail.com<br>To: grass-user@lists.osgeo.org<br>Date: Mon, 23 Nov 2009 12:56:46 -0200<br>Subject: [GRASS-user] Piping Commands<br><br>
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<br>Hi, <br><br>I want to do the following:<br>v.extract some lines from a vector and them<br>v.buffer those lines<br><br>How do I pipe these commands?<br><br><br><br><br><br>Pablo Torres Carreira
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