First, keep in mind that GRASS is a GIS, not a graphics program. So you can't just "display" any graphics file. That is not the purpose of GRASS software.
You can visualize a graphics file in the GRASS GIS environment by importing it into an XY location--i.e., where pixel coordinates are not tied to an earth coordinate system.
If you want to orient a map that comes in a graphic file format (e.g., a scanned map) so that it can be used in a GIS, you will need to georeference it so that each pixel is mapped to a corresponding earth coordinate system. You can use the georeferencing wizard in GRASS to do this.
If you want to display a photo of a place on top of a map, GRASS does not do that. You can save a map to a graphics file and then create your photo/map collage in a program like GIMP or Inkscape.
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
On Aug 12, 2011, at 9:00 AM, <grass-dev-request@lists.osgeo.org> <grass-dev-request@lists.osgeo.org> wrote:
Date: Thu, 11 Aug 2011 18:55:45 +0530
From: Sudeep Singh <sudeep495@gmail.com>
Subject: [GRASS-dev] GRASS GIS Map Display
To: GRASS-dev <grass-dev@lists.osgeo.org>
Message-ID:
<CA+an3RkNANW9ANd8BHk1=DHhqg+ES2Q9ckU9eLUSwR53NyPr0A@mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"Hi,
I want to display an image in GRASS GIS Map Display. I have a PNG file which
I want to display. How should I go about that , if some one has suggestion
for this .thanks
sudeep