Hi,
I think that it is the main canvas trying to reproject all layers to a
common (but not related to any Earth's) CRS. As if the datum
transformations between these systems were not defined, and the absence of
the WGS-84 pivot was insurmountable.
In my opinion, the most convenient thing to
Hi,
QGIS georeferencing is made in C++, so i think you can't get its workflow
in the Python console.
You can see the code of the georeferencer in:
https://github.com/qgis/QGIS/tree/master/src/app/georeferencer
Regards,
Gabriel
El sáb, 20 may 2023 a la(s) 11:53, Mike Flannigan via QGIS-User
Hi Tim,
I could help keep an eye on new submissions and test them on my machine.
My osgeo username is gabrieldeluca. Count on me if you think I can be of
help.
Regards,
Gabriel
El mar, 4 abr 2023 a la(s) 12:40, Tim Sutton via QGIS-Developer (
qgis-develo...@lists.osgeo.org) escribió:
>
Hi Árni,
You can try setting the SQLITE_USE_OGR_VFS=YES configuration option, as
mentioned at https://github.com/qgis/QGIS/issues/27899.
Be sure to read the implications of changing the default (NO) option:
https://gdal.org/drivers/vector/sqlite.html#configuration-options
You can change the
this type of
transformation. It only requires numpy and is very efficient at finding
transformation parameters. The algorithm on which it is based is not mine.
You can use the script if you consider it convenient, I published it with a
MIT license at https://github.com/gabriel-de-luca/simil.
Regards
Hi, I usually do a brief adjustment on pixel values prior to
georeferencing, to make sure that no pixel has the value I need to assign
to nodata.
Depending on the source dataset, I usually try to replace the zeros with
ones, and reserve the zero for nodata.
El vie, 1 de oct. de 2021 a la(s)
Hi Walt,
There are some options to georeference a vector layer:
Since it is 2D, you can georeference it to a projected coordinate system
with ogr2ogr command line application, in the same way that a raster layer
can be georeferenced from control points. You can use any transformation
method
El vie., 31 de ene. de 2020 a la(s) 08:10, Humberto Nel Florez Ramos (
hnflorezra...@gmail.com) escribió:
> regards.
> I could not load a layer in tiff format. The error that qgis shows is:
>
> "No transform is available between Unknown CRS: ENGCRS [" PCS Name =
> unnamed ", EDATUM [" "], CS
About how to remedy these situations, you can use the v.clean GRASS
provider algorithm, selecting the snap cleaning tool.
Kind Regards,
Gabriel
El mié., 15 de ene. de 2020 a la(s) 16:10, Gabriel De Luca (
pablogabrieldel...@gmail.com) escribió:
> When digitizing, coordinates are taken f
When digitizing, coordinates are taken from the canvas and stored to the
layer. If the canvas (project) CRS is not the same as the layer CRS, a
transformation and/or conversion must be done between the taken and stored
coordinates. That transformation and/or conversion performed between the
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