[gdal-dev] Creating a .TAB for an ASCII Grid in MapInfo

2012-07-03 Thread Fodder
Hi Guys, Hopefully a simple one. I'm trying to create a tab file to support an ASC ASCII Grid file with the projection coming from a mid/mif. Can anyone tell me the ogr2ogr or gdal commands to achieve this? The tab is reasonably simple text file so I could probably hack it with the mid/mif header

[Gdal-dev] GDAL affine transform Non-North-Up

2008-12-18 Thread Fodder
Hi All, If I know the co-ordinates for all 4 corners of a non-north-up image, how can I calculate the 6 GDAL affine transform parameters? Cheers, Fodder -- View this message in context: http://www.nabble.com/GDAL-affine-transform-Non-North-Up-tp21087047p21087047.html Sent from the GDAL - Dev

Re: Re: Re[Gdal-dev] ndering optimization [Re: Looking for huge vector dataset]

2008-11-27 Thread Fodder
think that SetScale (As Frank suggested) would be just as relevant as SetSpatialFilter or SetAttributeFilter Cheers, Fodder aaime wrote: > > My 2 cents from Geotools/Geoserver land. We are using both tecniques in > fact, that is: > * our renderer subsystem gathers data from th

Re: [Gdal-dev] gdal_grid: Comments from a new player

2008-10-22 Thread Fodder
Thanks Andrey Andrey Kiselev wrote: > > On Tue, Oct 21, 2008 at 11:01:36PM -0700, Fodder wrote: >> The latest version of GdalGrid (in FWTools) seems to not use the >> radius values properly for the Nearest algorithm. In my project, I >> used 4000 for both but I e

Re: [Gdal-dev] OGR: DXF driver

2008-10-21 Thread Fodder
Hi, Please refer to my email, I'm happy to play a role. Cheers, Fodder Andreas Neumann-7 wrote: > > I understand. It is not a big contract. I will see who could take the > lead. I know of several organizations in Switzerland who would have an > interest in an O

Re: [Gdal-dev] gdal_grid: Comments from a new player

2008-10-21 Thread Fodder
for the entire display (which is what I would expect because my entire project is 4000x4000). Cheers, Fodder Andrey Kiselev wrote: > > On Sun, Jun 01, 2008 at 05:29:26PM -0700, Fodder wrote: >> - One more thing I've noticed. The 'nearest' interpolation algorithm &g

Re: [Gdal-dev] OGR: DXF driver

2008-10-14 Thread Fodder
ons interested in jointly contributing? On your proposal, you say that it would not support REGION, is it normal for polygons to be recorded as special polylines in DXF (such as from AutoCAD for example)? Would it support attributes, such as a DXF of contour lines with elevation attributes? Cheers,

Re: [Gdal-dev] OGR: DXF driver

2008-10-13 Thread Fodder
fund the entire development, but perhaps there are others that might also contribute Cheers, Fodder Aurélien Kamel-2 wrote: > > Hello, > > > > Does somebody knows where I could find (if existing) a DXF driver for OGR > that supports reading (writing is not necessary)

Re: [Gdal-dev] Algorithm Development

2008-09-08 Thread Fodder
orted? - What vector sources will be supported (if any) (points only, or polyline polygon etc)? - Will it be incorporated in Gdal_Grid? - When you say regions, do you mean vector polygons or raster zones? Cheers, Fodder -- View this message in context: http://www.nabble.com/Algorithm-Development-tp19

Re: [Gdal-dev] Tif file getting larger and larger

2008-08-14 Thread Fodder
Thanks for that Vincent, very interesting. Vincent Schut-2 wrote: > > > In case someone is interested, personally I use these optimization rules: > - random write access: don't compress, strip or tile and pixel or band > interleave according to read/write algorithm; > - mainly intended for r

Re: [Gdal-dev] Tif file getting larger and larger

2008-08-14 Thread Fodder
Ah, dear, so if I want to frequently change values in TIF file, I basically can't use compression as the file will quickly get larger than the uncompressed version. Is this a fair comment? Also, I've noticed that after 5-8 re-writes of the whole dataset (RasterIO the whole grid from a buffer),

[Gdal-dev] Tif file getting larger and larger

2008-08-13 Thread Fodder
Hi, I have a program that is reading and writing to a GeoTif file using Open, RasterIO and Close calls and Float32 data types. However, I find that the file just gets larger and larger whenever I write to the file even though I'm trying to overwrite the existing data. For example, if open a Tif