[gdal-dev] Displaying vector files

such data. Thanks, Akshay gupta ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev

[gdal-dev] Problem reading JPEG image format

Hi all, I am having problems trying to read .jpg images using gdal. Using GDAL I am able to read jpg images using GA_ReadOnly mode but in GA_Update mode its giving errors. Can any one tell me what might be the problem, and suggest me a turnaround to open jpg image in update mode. Thanks in adva

Re: [gdal-dev] GDAL Tiling

n 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 wro

Re: [gdal-dev] GDAL Tiling

this is outside of your program, but it looks like you are > going to need to modify the input data pre-processing. > > > Jay > > > > On Tue, Mar 27, 2012 at 11:14 AM, akshay gupta > wrote: > >> Hi, >> >> I have few questions regarding GDAL tiling an

Re: [gdal-dev] GDAL Tiling

Thanks for your quick reply, I dont want to use GDALRasterIO, I dont want to allocate memory of size equal that of image or ROI, i want to make use of tiling as much as possible. Can you provide more detail on how to create tiles tiff files by default. Akhy On Tue, Mar 27, 2012 at 9:30 PM, Chaitan

[gdal-dev] GDAL Tiling

Hi, I have few questions regarding GDAL tiling and overviews. 1) Is there any In build direct function in GDAL from where i can set the size of the tiles(raster block size). 2)I an facing an strange situation. I have an TIFF image, and I am trying to read it block by block using ReadBlock(). When

[gdal-dev] Saving shape files in GDAL/OGR

Hi, I have a loaded an raster image using GDAL, and i want to provide a drawing tool using which user can draw an irregular shape on the raster image and then save the shape and the enclosing pixels in a vector format for future use. Can any one tell me how to do this in GDAL/OGR? Thanks and reg

[gdal-dev] caching in gdal

Hi all, How exactly does caching work in gdal. If I have 2 or more images opened simultaneously in gdal, does gdal consider the tiles(or scanlines) belonging to different images separately or does it keeps a common set, can any body explain how it is done in gdal. Thanks and regards, Akshay _