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Nix Geospatial Team

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Nix Geospatial packages maintenance. Team board - https://github.com/orgs/NixOS/projects/47/views/110 Servers

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21 Feb 2024
@imincik:matrix.orgIvan Mincik (imincik)Good reminder why I use Nix19:34:49
@imincik:matrix.orgIvan Mincik (imincik)Please review this trivial patch version update - https://github.com/NixOS/nixpkgs/pull/286713 . Thanks.21:04:05
@vengmark2:matrix.orgl0b0
In reply to @imincik:matrix.org
What about opening issue in GDAL ?
The first thing someone is going to ask is how to reproduce, and I think I'll need some help with that. There are a bajillion options, and I'm not very familiar with cmake, and even less familiar with GDAL. 		23:46:11
@vengmark2:matrix.orgl0b0
In reply to @imincik:matrix.org
What about opening issue in GDAL ?
* The first thing someone is going to ask is how to reproduce, and I think I'll need some help with that. There are a bajillion options, and I'm not very familiar with cmake, and even less familiar with GDAL. I'd be surprised if they'd be OK with running nix-build to test it, but I could start with that. 		23:46:58
@vengmark2:matrix.orgl0b0 Looks like there's already a relevant issue. 23:48:01
@vengmark2:matrix.orgl0b0 * Looks like there's already a relevant issue. I'll try building libtiff with lerc to see if that fixes it… 23:50:47
22 Feb 2024
@vengmark2:matrix.orgl0b0Is anyone familiar enough with libtiff to create some tests? I feel like if LERC support should be added to libtiff then it should be tested in the libtiff package, not in GDAL.00:05:25
@imincik:matrix.orgIvan Mincik (imincik)
In reply to @vengmark2:matrix.org
Looks like there's already a relevant issue. I'll try building libtiff with lerc to see if that fixes it…
Is it working with https://github.com/NixOS/nixpkgs/pull/290556 		09:17:53
@imincik:matrix.orgIvan Mincik (imincik)
In reply to @vengmark2:matrix.org
Looks like there's already a relevant issue. I'll try building libtiff with lerc to see if that fixes it…
* Is it working with https://github.com/NixOS/nixpkgs/pull/290556 ? 		09:17:57
@vengmark2:matrix.orgl0b0Yep, that's how I verified the libtiff change. There's no libtiff test to verify that LERC support has been enabled yet.09:18:44
@vengmark2:matrix.orgl0b0

You should be able to verify with

git checkout l0b0/libtiff-lerc-support
git cherry-pick l0b0/gdal-test-separation
git cherry-pick l0b0/gdal-lerc-support
nix-build --attr pkgs.gdal.passthru.tests
09:24:05
@vengmark2:matrix.orgl0b0 *

You should be able to verify with

git checkout l0b0/libtiff-lerc-support
git cherry-pick l0b0/gdal-test-separation
git cherry-pick l0b0/gdal-lerc-support
nix-build --attr pkgs.gdal.passthru.tests.compress-lerc
09:24:45
@vengmark2:matrix.orgl0b0 *

You should be able to verify with

git checkout l0b0/libtiff-lerc-support
git cherry-pick l0b0/gdal-test-separation
git cherry-pick l0b0/gdal-lerc-support
nix-build --attr pkgs.gdal.passthru.tests.compress-lerc

(It takes forever to build, though.)

09:25:13
@imincik:matrix.orgIvan Mincik (imincik)

What about trying tiffinfo to check which compression is enabled

./result-bin/bin/tiffinfo ~/Projects/osgeo/qgis/code/tests/testdata/raster_layer.tiffTIFFReadDirectory: Warning, Unknown field with tag 33550 (0x830e) encountered.
TIFFReadDirectory: Warning, Unknown field with tag 33922 (0x8482) encountered.
TIFFReadDirectory: Warning, Unknown field with tag 34735 (0x87af) encountered.
TIFFReadDirectory: Warning, Unknown field with tag 34736 (0x87b0) encountered.
TIFFReadDirectory: Warning, Unknown field with tag 34737 (0x87b1) encountered.
=== TIFF directory 0 ===
TIFF Directory at offset 0x67b86 (424838)
  Image Width: 337 Image Length: 315
  Resolution: 36, 36 pixels/inch
  Bits/Sample: 8
  Compression Scheme: None
  Photometric Interpretation: RGB color
  Extra Samples: 1<unassoc-alpha>
  Orientation: row 0 top, col 0 lhs
  Samples/Pixel: 4
  Rows/Strip: 6
  Planar Configuration: single image plane
  Tag 33550: 0.146439,0.146439,0.000000
  Tag 33922: 0.000000,0.000000,0.000000,-124.091282,56.207996,0.000000
  Tag 34735: 1,1,0,7,1024,0,1,2,1025,0,1,1,2048,0,1,4326,2049,34737,7,0,2054,0,1,9102,2057,34736,1,1,2059,34736,1,0
  Tag 34736: 298.257224,6378137.000000
  Tag 34737: WGS 84|
09:25:42
@imincik:matrix.orgIvan Mincik (imincik) tiffinfo contains Compression Scheme: None field 09:26:26

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