Hey all. I'm working at DigitalGlobe now and have been immersed in some
really exciting GIS work. Anyhow the reason I'm writing is I've been
working with the Geographic Data Abstraction Library:
http://gdal.maptools.org/index.html
It occurred to me that GDAL could very well be extremely useful in NCL as
a data object. GDAL has the ability to provide the type of random access
to pixels that raster contouring needs and GDAL supports reprojection of
map projected imagery using the PROJ4 library. What this means for NCL and
NCAR Graphics is it would be possible to support a wide range of standard
Geo referenced imagery as input to NCL. GDAL IO could be used to implement
the type of access raster contouring needs allowing NCL contours and other
graphics to be overlayed easily.
Just a thought. Below is the list of supported image formats. By the way
there are lots of optional formats *including* HDF and netCDF. See:
http://www.remotesensing.org/gdal/gdal_building.html
-ethan
-bash-2.05b$ gdalinfo --formats
Supported Formats:
VRT (rw): Virtual Raster
GTiff (rw): GeoTIFF
NITF (rw): National Imagery Transmission Format
HFA (rw): Erdas Imagine Images (.img)
SAR_CEOS (ro): CEOS SAR Image
CEOS (ro): CEOS Image
ELAS (rw): ELAS
AIG (ro): Arc/Info Binary Grid
AAIGrid (rw): Arc/Info ASCII Grid
SDTS (ro): SDTS Raster
DTED (rw): DTED Elevation Raster
PNG (rw): Portable Network Graphics
JPEG (rw): JPEG JFIF
MEM (rw): In Memory Raster
JDEM (ro): Japanese DEM (.mem)
GIF (rw): Graphics Interchange Format (.gif)
ESAT (ro): Envisat Image Format
BSB (ro): Maptech BSB Nautical Charts
XPM (rw): X11 PixMap Format
BMP (rw): MS Windows Device Independent Bitmap
PCIDSK (rw): PCIDSK Database File
PNM (rw): Portable Pixmap Format (netpbm)
DOQ1 (ro): USGS DOQ (Old Style)
DOQ2 (ro): USGS DOQ (New Style)
ENVI (rw): ENVI .hdr Labelled
EHdr (rw): ESRI .hdr Labelled
PAux (rw): PCI .aux Labelled
MFF (rw): Atlantis MFF Raster
MFF2 (rw): Atlantis MFF2 (HKV) Raster
FujiBAS (ro): Fuji BAS Scanner Image
GSC (ro): GSC Geogrid
FAST (ro): EOSAT FAST Format
BT (rw): VTP .bt (Binary Terrain) 1.3 Format
LAN (ro): Erdas .LAN/.GIS
L1B (ro): NOAA Polar Orbiter Level 1b Data Set
FIT (rw): FIT Image
USGSDEM (rw): USGS Optional ASCII DEM (and CDED)
GXF (ro): GeoSoft Grid Exchange Format
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