Dear all,<br><br>I extracted drainage from DEM using r.stream.extract using several thresholds.<br>I don't know why I can export the vectors generated using some threshols (50 and 1000),<br>but for others (500 and 2000) I get error messages (Bad file descriptor: Files) when<br>
exporting with v.out.ogr ....<br>To complicate a little bit more, the same file I exported without problem (threshols=50),<br>I don't know why I get the same error message (Bad file descriptor: Files) when<br>trying rasterized the heads using:<br>
v.to.rast input=My_vetor_th0050 output=My_vetor_th0050_HEADS type=point use=attr column=type_code<br><br>I am running all this under Windos 7.<br>Any help are welcome.<br><br>cheers<br><br>milton<br>