LCC projections support broken

[jdesboeufs]

The support of LCC projections seems to be broken since PROJ6 integration. So I'm stuck to 0.10.0 version in production for now.

Example code:

const gdal = require('gdal-next')

const wgs84 = gdal.SpatialReference.fromProj4('+init=epsg:4326')

const dataset = gdal.open('/vsizip/test.zip')
const layer = dataset.layers.get(0)
const transform = new gdal.CoordinateTransformation(layer.srs, wgs84)

const geometry = layer.features.get(0).getGeometry()
geometry.transform(transform)

You can try with this file:

curl https://www.data.gouv.fr/fr/datasets/r/1cbb1e3a-b915-4103-95ad-6a9feb3c8187 > test.zip

[yocontra]

@jdesboeufs Could you make a repo that expresses this as a test using some assertions? Then I can run the tests against each version of gdal and look into the issue, and have a better idea of it actually being fixed without having to manually look at the output. I'm not super familiar with the expected output so will make it much easier.

[jdesboeufs]

After some additional research, it seems the transformation "Lambert Conformal Conic" used in the coordinates system is not supported anymore in PROJ7. It also breaks with ogr2ogr 3.1. It's a real problem for me, but it's not the responsability of gdal-next.

[jdesboeufs]

I reopen the issue since I'm able to "repair" the projection with ogr2ogr. So if ogr2ogr is able to read and save, then open read and transform, gdal-next could too.

[mmomtchev]

@jdesboeufs this is working for me in the latest version, can you please retry and give me feedback

[jdesboeufs]

It's working!

Thank you very much!