Re: [gdal-dev] Clipping shapefiles

2008-09-12 Thread Craig Leat
Hi Matthew Matthew Huck wrote: > Thanks for that, I seem to have something working now (or so I think), my > shape file is the contours lines for a reasonably hilly area (100Mb), and > I'm clipping it to an area of about 1/12. The only thing is it's still > running about 17 hours later. Is v.ove

Re: [gdal-dev] Clipping shapefiles

2008-09-10 Thread Matthew Huck
Hi, Thanks for that, I seem to have something working now (or so I think), my shape file is the contours lines for a reasonably hilly area (100Mb), and I'm clipping it to an area of about 1/12. The only thing is it's still running about 17 hours later. Is v.overlay slow or have I done something

Re: [gdal-dev] Clipping shapefiles

2008-09-06 Thread Ari Jolma
Matthew Huck kirjoitti: Hi, I've got a reasonably large shapefile that I wish to break down into areas that match the topographic maps in NZMG. I've got a python script that creates a shapefile with each topomap as a polygon in it (and I can create a shapefile per topo map too if required).

Re: [gdal-dev] Clipping shapefiles

2008-09-04 Thread Craig Leat
Hi Matthew Matthew Huck wrote: > Hi, I've got a reasonably large shapefile that I wish to break down > into areas that match the topographic maps in NZMG. I've got a python > script that creates a shapefile with each topomap as a polygon in it > (and I can create a shapefile per topo map too if

[gdal-dev] Clipping shapefiles

2008-09-03 Thread Matthew Huck
Hi, I've got a reasonably large shapefile that I wish to break down into areas that match the topographic maps in NZMG. I've got a python script that creates a shapefile with each topomap as a polygon in it (and I can create a shapefile per topo map too if required). What I can't work out how to