Hi Tamas,
2009/8/14 Tamas Szekeres :
> Hi Jorge,
>
> I really appreciate your efforts to sort these issues out. I consider these
> issues would be crucial especially when the requested block number is large
> or when using non regular (and possibly overlapped) blocking where each
> IReadBlock may
Hi Jorge,
I really appreciate your efforts to sort these issues out. I consider these
issues would be crucial especially when the requested block number is large
or when using non regular (and possibly overlapped) blocking where each
IReadBlock may result in fetching multiple raster rows.
However
2009/8/14 Jorge Arévalo :
>> Jorge,
>>
>> I would note that one round trip per block is not necessarily so terrible
>> if the block size is reasonably large (128x128 or larger for instance).
>>
>
> Yes, but don't you think it could be a good idea trying to avoid extra
> server rounds, in general?
Hello,
2009/8/14 Mateusz Loskot :
> Jorge Arévalo wrote:
>> Hello,
>>
>> I've asked several concepts related with RasterIO-related methods in
>> Dataset and RasterBand. Thanks to your responses, I've a better
>> understanding of the GDAL drivers' I/O method. But I've a couple of
>> doubts I need t
Hello,
2009/8/14 Frank Warmerdam :
> 2009/8/14 Jorge Arévalo :
>> Problem: In basic GDAL WKT Raster driver, each row of a raster table
>> (one block, in regularly blocked rasters) means one server round. This
>> is slow, and "sub-optimal".
>
> Jorge,
>
> I would note that one round trip per block
Jorge Arévalo wrote:
> Hello,
>
> I've asked several concepts related with RasterIO-related methods in
> Dataset and RasterBand. Thanks to your responses, I've a better
> understanding of the GDAL drivers' I/O method. But I've a couple of
> doubts I need to solve to finish the GSoC, although I'd l
2009/8/14 Jorge Arévalo :
> Problem: In basic GDAL WKT Raster driver, each row of a raster table
> (one block, in regularly blocked rasters) means one server round. This
> is slow, and "sub-optimal".
Jorge,
I would note that one round trip per block is not necessarily so terrible
if the block siz
Hello,
I've asked several concepts related with RasterIO-related methods in
Dataset and RasterBand. Thanks to your responses, I've a better
understanding of the GDAL drivers' I/O method. But I've a couple of
doubts I need to solve to finish the GSoC, although I'd like to
continue developing the dr
