Re: [gdal-dev] Experiences with the WMS driver

2022-01-05 Thread mladen-g
Hi Joaquim, FYI your curl command will work if you update the URL to what is in the HTML file message (looks like it was moved to HTTPS instead of HTTP). I understand it's not what you want in the end, just thought I'd point it out in case it's useful for troubleshooting. Quoting jl...@

Re: [gdal-dev] C# bindings for (fast) reproject, resample, and send to DB

2019-10-16 Thread mladen-g
Hello, Can you be more specific about what steps you are suggesting I take, and how that would improve performance? Are you saying that gdalwarp-ing to gpkg is more performant than writing to VRT? I looked at the geopackage docs and it seems that all results are encoded as ARGB, so in th

[gdal-dev] C# bindings for (fast) reproject, resample, and send to DB

2019-10-10 Thread mladen-g
Hello, I've been using GDAL for a while, but I am still a newbie to the API. I see there are some experts on this group, so apologies if I'm asking something simple (my searches did not reveal the answers I was looking for). Here is my problem: I need to take an input raster, split int

Re: [gdal-dev] GDALOpen failed on GRC grid

2012-03-14 Thread mladen-g
Hi, I did some more research, and compared a working grid against the one that fails to open. Here is the working grid, which is almost exactly the same as the failing one (~50K difference in file sizes): http://dl.dropbox.com/u/53500018/WorkingGdalOpen.zip Comparing the two in a binary e

[gdal-dev] GDALOpen failed on GRC grid

2012-03-13 Thread mladen-g
Hello all, I'm experiencing an error when trying to open a GRC grid (Northwood VerticalMapper Classified Grid) with gdal_translate. The command and error is: C:\>gdal_translate -of vrt "C:\temp\ClassficationGrid-UK-Technologies_1.grc" "C:\temp\ClassficationGrid-UK-Technologies_1.vrt"

[gdal-dev] Re: Weird gdal2tiles performance inconsistency

2012-02-08 Thread mladen-g
Hi Vadim, Just wanted to say thanks for suggesting the tilers-tools package. Over the past few weeks I've done some testing with it, and while it has some minor quirks, I think it's overall a better solution for me. I do still see the strange performance drop in low zoomlevels, but since

[gdal-dev] Weird gdal2tiles performance inconsistency

2011-12-22 Thread mladen-g
Hi all, I'm seeing some very strange performance from gdal2tiles on a particular grid, so I'm wondering if someone has an insight into why this is happening. The problem is that when I tile the grid at zoom level 7, I get much better performance than with other zoomlevels, including lower

Re: [gdal-dev] gdal_translate to TIFF -- color mismatch

2011-12-15 Thread mladen-g
Wow, that was fast. Thanks! I see that the fix is in 1.8.2... Do you know will this be a separate release or will the fixes be merged into 1.9.0? I ask because I see some recent discussions suggesting that 1.9.0 may be released by the end of the year. Thanks again for the quick response

[gdal-dev] gdal_translate to TIFF -- color mismatch

2011-12-15 Thread mladen-g
Hi all, I am trying to use gdal_translate to convert a .grd file (Northwood/VerticalMapper format) to TIFF. However, the colors in the translated file don't seem to be interpolated correctly based on the color scheme, for values near the end of the range. Here is a link to the original G