Re: [gdal-dev] Raster to vector conversions....

2014-07-01 Thread Luke
There is a QGIS solution on GIS Stackexchange - http://gis.stackexchange.com/a/86186/2856 Luke Wilbur60 wrote > I am trying to find a method of converting a raster grid to a polygon > vector that does NOT aggregate adjacent pixels that share the same Z > value. In other words, I would like the

Re: [gdal-dev] gdaltranslate and gdalwarp rotating and resizing image without being asked to, why?

2014-07-01 Thread Even Rouault
Le mardi 01 juillet 2014 15:50:18, Jesse McGraw a écrit : > On Mon, Jun 30, 2014 at 3:07 PM, Even Rouault > > > wrote: > > That might the problem. If you create the GCPs on the PDF and not on the > > PNG, > > and that the PDF has rotation, pdftoppm I think will apply the rotation, > > hence > > t

Re: [gdal-dev] Raster to vector conversions....

2014-07-01 Thread Even Rouault
Le mardi 01 juillet 2014 22:07:36, William Hudspeth a écrit : > Hello, > > I am trying to find a method of converting a raster grid to a polygon > vector that does NOT aggregate adjacent pixels that share the same Z > value. In other words, I would like the output vector to be a grid of > polygons

[gdal-dev] Raster to vector conversions....

2014-07-01 Thread William Hudspeth
Hello, I am trying to find a method of converting a raster grid to a polygon vector that does NOT aggregate adjacent pixels that share the same Z value. In other words, I would like the output vector to be a grid of polygons where the number of polygons is equal to the number of pixels in the

Re: [gdal-dev] gdal_translate 1.11 netcdf output is a flipped Y image

2014-07-01 Thread Even Rouault
Le mardi 01 juillet 2014 12:13:57, 00darki a écrit : > Hi, > > I'm trying to convert netcdf files to geotiff image, i'm using > gdal_translate.exe, and the result of the command is a Y flipped image > (north is south and south is north ..). > > I've learned many topics on this issue but I havn't

Re: [gdal-dev] gdal_translate 1.11 netcdf output is a flipped Y image

2014-07-01 Thread Andre Joost
Am 01.07.2014 14:51, schrieb 00darki: *gdal_translate.exe -a_ullr "-180" "90" "180" "-90" -a_srs "EPSG:3408" D:/GDAL/MapServer/mnt0.nc D:/GDAL/MapServer/mnt00_geotif00.tif I guess that the bounds must meet the CRS of the tif. Since that is not lat/lon, the bounds make no sense to me. HT

Re: [gdal-dev] gdaltranslate and gdalwarp rotating and resizing image without being asked to, why?

2014-07-01 Thread Jesse McGraw
On Mon, Jun 30, 2014 at 3:07 PM, Even Rouault wrote: > > > That might the problem. If you create the GCPs on the PDF and not on the > PNG, > and that the PDF has rotation, pdftoppm I think will apply the rotation, > hence > the axis swapping. > Remember, I'm using the PNG I've created for all gd

Re: [gdal-dev] gdal_translate 1.11 netcdf output is a flipped Y image

2014-07-01 Thread 00darki
*gdal_translate.exe -a_ullr "-180" "90" "180" "-90" -a_srs "EPSG:3408" D:/GDAL/MapServer/mnt0.nc D:/GDAL/MapServer/mnt00_geotif00.tif Warning 1: No UNIDATA NC_GLOBAL:Conventions attribute Input file size is 4321, 2161 0...10...20...30...40...50...60...70...80...90...100 - done.* Same result,

Re: [gdal-dev] gdal_translate 1.11 netcdf output is a flipped Y image

2014-07-01 Thread Jean-Claude Repetto
Le 01/07/2014 12:13, 00darki a écrit : I've tried to use -a_ullr and -a_srs option but this doesn't make any difference. *gdal_translate.exe -a_ullr "-90" "90" "-180" "180" -a_srs "EPSG:4326" Hi, Your ullr parameters are not in the right order. Try : gdal_translate -a_ullr -180 90 180 -90 Je

[gdal-dev] gdal_translate 1.11 netcdf output is a flipped Y image

2014-07-01 Thread 00darki
Hi, I'm trying to convert netcdf files to geotiff image, i'm using gdal_translate.exe, and the result of the command is a Y flipped image (north is south and south is north ..). I've learned many topics on this issue but I havn't found any solution .. *gdal_translate.exe D://mnt0.nc