On 4/13/2012 1:50 PM, Carl Godkin wrote:
I think a lot of formats support the concept of NODATA. The GDAL API
has functions for checking for this in the GDALRasterBand class, for
instance, as
double GDALRasterBand::GetNoDataValue() in the C++ or in the C API
as GDALGetRasterNoDataValue().
I'
On Fri, Apr 13, 2012 at 12:07 PM, David Strip wrote:
> What data formats besides geotiff support a NODATA value? Is there a
> uniform GDAL approach to determining the NODATA value or otherwise
> determining if a pixel is a NODATA pixel? I know that this value is stored
> in a geotiff tag, but th
David,
Some formats support identifying a particular pixel value as nodata
and some do not.
When they don't and you write nodata, we usually try to store the
information in an
.aux.xml file (auxilary metadata) which at least GDAL based applications would
recognise.
Best regards,
Frank
On Fri, Ap
What data formats besides geotiff support a NODATA value? Is there a
uniform GDAL approach to determining the NODATA value or otherwise
determining if a pixel is a NODATA pixel? I know that this value is
stored in a geotiff tag, but that won't work for other formats.
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