[GRASS-dev] GRASS GIS Map Display

[Sudeep Singh]

Thanks Hamish, Michael and Rashad . I will let know if I have some luck with
this.

On Sun, Aug 14, 2011 at 10:14 AM, Michael Barton <Michael.Barton at asu.edu>wrote:

> Good to know. Thanks. I've never seen it for other geospatial data entry,
> but good to know that GDAL can read such a file.
>
> Michael
> ____________________
> C. Michael Barton
> Director, Center for Social Dynamics & Complexity
> Professor of Anthropology, School of Human Evolution & Social Change
> Arizona State University
>
> voice:  480-965-6262 (SHESC), 480-727-9746 (CSDC)
> fax:          480-965-7671 (SHESC),  480-727-0709 (CSDC)
> www: http://www.public.asu.edu/~cmbarton, http://csdc.asu.edu
>
>
>
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>
> On Aug 13, 2011, at 8:52 PM, Hamish wrote:
>
> > Michael wrote:
> >> Unless there is some kind of geocoded version of PNG's (I don't
> >> know of any), the PNG would not be georeferenced and hence not
> >> useable in any way for the GIS without some kind of
> >> transformation.
> >
> > for the record, you can create a "worldfile" for a PNG the same
> > as for a plain TIFF image, and GDAL will pick it up. It needs to
> > be named the same as the image but with a .pgw extension.
> >  http://gdal.org/frmt_various.html#PNG
> >
> > I'm not sure if anything other than GDAL-based things would
> > respect that though, or if this trick helps for Sudeep's
> > question or not.
> >
> > (GDAL's virtual-raster format is another wonderful cpu-saving
> > device worth mentioning btw)
> >  http://www.gdal.org/gdal_vrttut.html
> >
> >
> > Hamish
> >
>
>
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