[gdal-dev] ogr2ogr: why only inserting the first file?

2008-11-06 Thread Matt Wilkie
Hello world, I'm trying to merge a bunch of shapefiles using the syntax below. I could have sworn this was working for me last year, but maybe I just didn't look closely enough at the time. 1. Download 2 or more of these files, unpack somewhere: http://ftp2.cits.rncan.gc.ca/pub/canvec/50k_gml

Re: [gdal-dev] resampling artifacts

2008-11-06 Thread Even Rouault
Brent, Have you tried with GDAL 1.6.0 beta ? Much work has been done in that area and those artifacts should have disappeared and people. See http://trac.osgeo.org/gdal/ticket/2627 Le Friday 07 November 2008 00:08:51 Brent Fraser, vous avez écrit : > Has anyone experienced resampling artifacts

[gdal-dev] resampling artifacts

2008-11-06 Thread Brent Fraser
Has anyone experienced resampling artifacts using gdalwarp? I'm using v1.5.2, and with lanczos or cubicspline resampling, I get a vertical line and a horizontal line of seemingly random pixels about 6 pixels wide running through the center of the output image. I'm resampling a 16-bit t

Re: [gdal-dev] DIMAP driver fail to get some meta data

2008-11-06 Thread Even Rouault
Guillaume, yes, what you've observed is consistant with the source code of the driver. To improve the situation, I've added in r15687 support for setting metadata at the raster band level (that is to say with GDALRasterBand::GetMetadata) Here's the new output : $ apps/gdalinfo dimap/DN000340T_

[gdal-dev] Re: gdal_merge

2008-11-06 Thread Jukka Rahkonen
Matt Wilkie gov.yk.ca> writes: > > > By the way, to get the order of precidence you want you should also > > reverse the order of the input images so that image1.tif is last > > (overlayed to top of everything else). > > Thanks for clarifying this Frank. > > Is there way to do the same with gd

[gdal-dev] Re: [R-sig-Geo] Using RGDAL to "copy" header information...

2008-11-06 Thread Roger Bivand
On Wed, 5 Nov 2008, Jonathan Greenberg wrote: R-geographers... I'm trying to solve a problem to implement a line-by-line tiled processing using RGDAL (read 1 line of an image, process the one line, write one line of the image to a binary file). Everything except for the final step I'm able