[gdal-dev] Problems with gdalwarp re-projecting from lat-long to Lambert Conformal

[Kyle Shannon]

Bill,

It may be necessary to create an intermediate file that supports creation (I
think the (rw+) flag on gdalinfo --formats shows which formats support
create, AAIGrid supports CreateCopy() but not Create()).  Use gdalwarp to
make a vrt file, then translate the file to AAIGrid:

/usr/local/gdal/bin/gdalwarp -of VRT -s_srs EPSG:4326 -t_srs
'+proj=lcc +lat_1=33n +lat_2=45n +lon_0=97w' mcd12_sep2109.asc
lambert_mcd12_sep2109.vrt

then:

/usr/local/gdal/bin/gdal_translate -of AAIGrid -s_srs EPSG:4326 -t_srs
 '+proj=lcc +lat_1=33n +lat_2=45n +lon_0=97w' lambert_mcd12_sep2109.vrt
lambert_mcd12_sep2109.asc

hope that helps,

regards,

-Kyle


On Tue, Mar 2, 2010 at 8:57 AM, Bill Hudspeth <wbhk at unm.edu> wrote:

> Hello,
>
> Thanks for responding. When I use gdalinfo --formats, I see that AAIGrid
> is included in the list of acceptable formats. However, when I use
>
> /usr/local/gdal/bin/gdalwarp -of AAIGrid -s_srs EPSG:4326 -t_srs
> '+proj=lcc +lat_1=33n +lat_2=45n +lon_0=97w' mcd12_sep2109.asc
> lambert_mcd12_sep2109.asc
>
> I get,
>
> Output driver `AAIGrid' not recognised or does not support
> direct output file creation.  The following format drivers are
> configured
> and support direct output:
>  VRT: Virtual Raster
>  GTiff: GeoTIFF
>  NITF: National Imagery Transmission Format
>  HFA: Erdas Imagine Images (.img)
>  ELAS: ELAS
>  MEM: In Memory Raster
>  BMP: MS Windows Device Independent Bitmap
>  PCIDSK: PCIDSK Database File
>  ILWIS: ILWIS Raster Map
>  HDF4Image: HDF4 Dataset
>  PNM: Portable Pixmap Format (netpbm)
>  ENVI: ENVI .hdr Labelled
>  EHdr: ESRI .hdr Labelled
>  PAux: PCI .aux Labelled
>  MFF: Atlantis MFF Raster
>  MFF2: Atlantis MFF2 (HKV) Raster
>  BT: VTP .bt (Binary Terrain) 1.3 Format
>  IDA: Image Data and Analysis
>  RMF: Raster Matrix Format
>
>
> ????
>
>
>
>
>
> On Tue, 2010-03-02 at 08:50 +0100, Markus Neteler wrote:
> > On Mon, Mar 1, 2010 at 7:12 PM, Bill Hudspeth <wbhk at unm.edu> wrote:
> > ...
> > > When I try to re-project the exported AAIGrid to another projection, I
> > > use:
> > >
> > > gdalwarp -s_srs EPSG:4326 -t_srs '+proj=lcc +lat__1=33n +lat_2=45n
> > > +lon_0=97w' MODIS_output_latlong.asc MODIS_output_lambert.asc
> >
> > Note that without -of format] you generate a GeoTIFF file...
> >
> > > While the resultant projection information looks correct,
> > >
> > > Driver: GTiff/GeoTIFF
> >    ^^^^^^^^^^^^^^^^^^^^^^^
> >
> > > The resultant text file has only the following on the top line:
> >
> > ... it is binary, not a text file. check
> >
> >  gdalwarp --formats
> >
> > for the available formats.
> >
> > Markus
>
>
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