Dear Frank Thanks for the swift response.
Viswanath. --- On Thu, 15/10/09, Frank Warmerdam <[email protected]> wrote: > From: Frank Warmerdam <[email protected]> > Subject: Re: [gdal-dev] Change Resampling method > To: "vvv jjj" <[email protected]> > Cc: [email protected] > Date: Thursday, 15 October, 2009, 8:01 PM > vvv jjj wrote: > > Hi > > > > I'm trying to read raster file (simple Tiff) raster > data using RasterIO and > > display the raster data without creating another > dataset. By default GDAL > > uses nearest neighbor resampling algorithm. I would > like to use other > > resampling methods (lanscoz). I do not need to write > in a new file (no > > hDstDS object is present) as I just need to display > the resample data. Is it > > possible to change the resampling method without > creating another dataset to > > read the raster data. > > Viswanath, > > The RasterIO() method offers no mechanism to control the > resampling. The > only way to get advanced resampling options is to use the > warp api in > which case you would need a destination dataset even if it > is just a > memory buffer wrapped as a dataset (using the MEM driver > for instance). > > This gets rather involved! > > Alternatively you could read the data at full resolution > and apply the > resampling yourself. > > > Pls let me know if I missed anything or posted in a > wrong form, as I'm new > > to GDAL. Thanks in Advance. > > This is the right place, and welcome. > > Best regards, > -- > ---------------------------------------+-------------------------------------- > I set the clouds in motion - turn up | > Frank Warmerdam, [email protected] > light and sound - activate the windows | http://pobox.com/~warmerdam > and watch the world go round - Rush | > Geospatial Programmer for Rent > > Now, send attachments up to 25MB with Yahoo! India Mail. Learn how. http://in.overview.mail.yahoo.com/photos _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
