I am presently using -srcwin for copying AOI to a different file. does -projwin have any advantage over -srcwin?
Akhy On Wed, Mar 28, 2012 at 5:29 PM, Jay L. <jzl5...@psu.edu> wrote: > Akshay, > > 1) An AOI can be created using the -projwin option in gdal_translate. You > can use that option when creating a new raster with a new tiles size. > > 2) Using the Python bindings it is possible to read a segment of a raster > into memory without allocating memory. I am unsure using another other > language. > > Jay > > > On Wed, Mar 28, 2012 at 5:16 AM, Mateusz Loskot <mate...@loskot.net>wrote: > >> On 28 March 2012 07:45, akshay gupta <akshaygupta...@gmail.com> wrote: >> > 2) When I read an image through ReadBlock() i had to allocate some >> memory >> > and pass it in the function. Is there some way that i get the image data >> > stored in GDALRasterBlock directly without passing my own allocated >> memory. >> >> http://www.gdal.org/classGDALRasterBlock.html#_details >> >> "In normal situations applications do not interact directly >> with the GDALRasterBlock - instead it it utilized >> by the RasterIO() interfaces to implement caching" >> >> Best regards, >> -- >> Mateusz Loskot, http://mateusz.loskot.net >> > >
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