Re: [Qgis-user] New User: Cropping makes HUGE files (and I know about COMPRESS-LZW)

2018-03-09 Thread Alex M
Can you supply the bounding box you are using (or the full command). Also which version of QGIS on which OS? You are correct that something is odd. Thanks, Alex On 03/09/2018 02:04 PM, Dennis Grant wrote: > I did that, and I got a file that was 150 Gb (and still growing after an > hour) > >

Re: [Qgis-user] New User: Cropping makes HUGE files (and I know about COMPRESS-LZW)

2018-03-09 Thread Alex M
The Clipper dialog is missing GUI options to set the compression. In the box at the bottom, edit the command to add the following "-co COMPRESS=DEFLATE -co PREDICTOR=2 -co ZLEVEL=9" That will apply compression to the output. Thanks, Alex On 03/09/2018 01:44 PM, Dennis Grant wrote: > Hi all, I

[Qgis-user] New User: Cropping makes HUGE files (and I know about COMPRESS-LZW)

2018-03-09 Thread Dennis Grant
Hi all, I have a very specific problem I'm attempting to solve, and I'm sad to say it has defeated me. What I am trying to do is generate a 3D model of the terrain relief in a certain area so that it can be fed into a CNC machine for subsequent carving. So then, step 1 - get a DEM GEOTIFF from