Hello
I want to implement a vector mbtile viewer and am considering using gdal to
extract the data.
I am wondering if gdal public API allows to :
- Retrieve metadata such as :
o the min and max zoom levels for each layer
o the min and max tile indexes for each layer and zoom level
You are right, Even
Sorry for the confusion !
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Hi Even
I have looked at cpl_multiproc.cpp implementation and I believe that I cannot
use multithreading for the mbtiles conversion (even if I define
GDAL_NUM_THREADS)
The compilation of cpl_multiproc.cpp depends on several compilation flags :
·CPL_MULTIPROC_STUB
·CPL_MULT
Hi Even
I managed to get it working. There was a bug in my code which prevented
features to be added to the second layer. In that case, the driver does not
export the empty layer.
In the MVT driver documentation, it says : Part of the conversion is
multi-threaded by default, using as many threa
I also tried the MVT driver and got the same problem : the output metadata.json
only lists one layer.
Should I create all layers first before adding features to them ?
The C++ API documentation does not explain how to write several layers in the
case of a MBTILES/MVT dataset
De : DELEPINE Chri
Hello
I am trying to create a vector mbtile containing several layers (using C++ GDAL
API) but it does not work. My output mbtile only contains one layer (ogrinfo
only lists one layer)
What I do is the following :
GDALDriver* driver = (GDALDriver*)GDALGetDriverByName("MBTiles");
GDALDataset* po
