Hi Even,
just to conclude :-)
Yes, you were right (as usual !):
Using "gdalbuildvrt -addalpha" along with "gdal_translate -co
TILING_SCHEME=xxx" does the job.
I just needed to be *very* patient:
1) gdal_translate takes a long time: more than an hour.
Without "-co TILING_SCHEME=xxx" option, it tak
> I turned the debug mode on.
> There are calls to GDALWarpKernel().
You'll always get calls to GDALWarpKernel() with gdal_translate
-of GPKG -co TILING_SCHEME
> Furthermore, I don't understand the line :
> WARP: SetAlphaMax: AlphaMax not set
You can ignore it. AlphaMax is set when the number of
Hi Even,
I am getting closer !
I added the -addalpha to the VRT image.
gdalbuildvrt -addalpha MyImage.vrt MyImageEast.tif MyImageWest.tif
1) The final GPKG is much better with the *default* parameters :
gdal_translate -of GPKG MyImage.vrt MyImage.gpkg
The output GPKG image only contains the re
Philippe,
> 1) gdalwarp using *"-co"* options yield to errors, even with -tr and -t_srs
> options
> PROMPT> gdalwarp -overwrite -of GPKG -co TILING_SCHEME=InspireCRS84Quad -co
> ZOOM_LEVEL_STRATEGY=AUTO -tr 0.56168363154 0.56168363154 -t_srs
> EPSG:4326 MyImageEast.tif MyImageWest.tif out.
Sorry my previous message is a bit screwed up (part of the message has been
lost)
1) gdalwarp using *"-co"* options yield to errors, even with -tr and -t_srs
options
PROMPT> gdalwarp -overwrite -of GPKG -co TILING_SCHEME=InspireCRS84Quad -co
ZOOM_LEVEL_STRATEGY=AUTO -tr 0.56168363154 0.561
On lundi 23 novembre 2020 09:14:26 CET Bugbuster wrote:
> Even,
> Your last suggestion (gdalwarp) sounds quite interesting.
> I still don't know how to manage the different GPKG options (e.g.
> TILING_SCHEME)
TILING_SCHEME is a bit particular as a creation option in the GPKG driver. You
can pass
Even,
Your last suggestion (gdalwarp) sounds quite interesting.
I still don't know how to manage the different GPKG options (e.g.
TILING_SCHEME)
I tried to use *"-co"* option:
I also tried to use *"-doo"* option.
PROMPT> gdalwarp -of GPKG -co TILING_SCHEME=InspireCRS84Quad MyImageEast.tif
MyIm
Hello,
> I created a "single raste_table" GPKG image, based on a VRT image :
>
>
> It does work. However, the output image is HUGE: all the empty tiles within
> [-179.0° ; +179.0°] are created.
> * Is there a way to tell gdal_translate not to create those useless tiles ?
> * does GPKG format sup
Dear all,
I would like to manage an image which spans over the antimeridian in GPKG
format.
After reading some information in the GDAL forum, I did a few tests and I
have some questions.
First of all, I divided my image MyImage.tif (CRS = EPSG:4326) into 2
sub-images :
1) MyImageEast.tif, which sp
