[gdal-dev] COG and VRT behaviour

Hi GDAL, Let's say I have two GTiff files in COG format: f1.tif f2.tif f1.tif and f2.tif are created like so: gdal_translate input.tif f1.tif \ -of COG \ -co BLOCKSIZE=256 \ -co COMPRESS=JPEG \ I can easily create a vrt of these two COGs and get the expected behaviour where the VRT honours the

[gdal-dev] MVT Driver, Tiling Scheme NZTM

I am creating a custom tiling scheme for NZTM, using the MVT driver, and outputting to a directory. ogr2ogr -progress -f MVT wellyDEM_50mContour_nztm_simp ../wellyDEM_contour_50m_simp.shp -dsco MINZOOM=0 -dsco MAXZOOM=8 -dsco COMPRESS=NO -dsco TILING_SCHEME=EPSG:2193,-100,1000,2293760 In

Re: [gdal-dev] Kriging Interpolation

Ian From: Even Rouault [even.roua...@spatialys.com] Sent: Tuesday, 26 June 2018 12:21 a.m. To: gdal-dev@lists.osgeo.org Cc: Ian Reese; Jeremy Palmer Subject: Re: [gdal-dev] Kriging Interpolation Ian, Looking at your script, for the IDW, I see you don't use the max_points, nor the radius1 a

Re: [gdal-dev] Kriging Interpolation

Cheer Joakim! That I am not familiar with and will have a look From: Joaquim Manuel Freire Luís [jl...@ualg.pt] Sent: Tuesday, 26 June 2018 10:58 a.m. To: Ian Reese; Even Rouault; gdal-dev@lists.osgeo.org Cc: Jeremy Palmer Subject: RE: [gdal-dev] Kriging

Re: [gdal-dev] Kriging Interpolation

uault [mailto:even.roua...@spatialys.com] Sent: Tuesday, 26 June 2018 12:21 a.m. To: gdal-dev@lists.osgeo.org Cc: Ian Reese; Jeremy Palmer Subject: Re: [gdal-dev] Kriging Interpolation Ian, Looking at your script, for the IDW, I see you don't use the max_points, nor the radius1 and radius2 to

[gdal-dev] Kriging Interpolation

Hi Gdal, I'd like to know if it is possible to make Kriging Interpolation part of gdal_grid. We work with a good deal of scattered point elevation data and neither IDW or Linear interpolations(smooth or not smooth) produce the desired visual results. Nor are they fast enough for the density

Re: [gdal-dev] GDAL_GRID Linear: Segmentation Fault

Hi Evan, Thanks for the heads up. I am running GDAL 2.2.2. I'll upgrade and let you know how it works out. Cheers, Ian From: Even Rouault [even.roua...@spatialys.com] Sent: Friday, 15 June 2018 9:55 p.m. To: gdal-dev@lists.osgeo.org Cc: Ian

[gdal-dev] GDAL_GRID Linear: Segmentation Fault

Hi Gdal, I am trying to do a linear interpolation using gdal_grid and I am getting a segmentation fault with output grid cell sizes smaller than 8m. gdal_grid -zfield "depth" -a linear:nodata=-32768 -outsize 526 754 -of GTiff -l inshape inshape.shp outtif.tif --config GDAL_NUM_THREADS ALL_CPUS

[gdal-dev] FW: gdal_merge.py

HI Gdal, Just wanted to follow this up. Cheers, Ian From: Ian Reese Sent: Monday, 12 March 2018 6:55 p.m. To: gdal-dev@lists.osgeo.org Subject: gdal_merge.py Hi Gdal, I am having some issues with gdal_merge.py. When I merge two tifs together, the original nodata value is converted to 0, no

[gdal-dev] gdal_merge.py

Hi Gdal, I am having some issues with gdal_merge.py. When I merge two tifs together, the original nodata value is converted to 0, no matter what that original no data was. Here is my test case: Data: https://data.linz.govt.nz/x/9iitN4 DEM_BA32_3501_2013 https://data.linz.govt.nz/x/WLurgo DEM