Image location inside its corner coordinates

[Ed McNierney]

Bruno -
 
Could you post the EXTENT statement you're using?  Two things to check -
UNITS DD should be there (should not affect this problem, however) and
your EXTENT needs to be in the order MINX MINY MAXX MAXY, so it should
be:

EXTENT -48.0004159 -25.0004164 -46.5004159 -24.0004163
 
Your image is 1.5 degrees wide (X dimension) and 1 degree tall (Y
dimension) so your output image size should also be that shape (600
pixels wide by 400 pixels high, for example) or you will see the map
shrunk to fit the shape of the image.
 
    - Ed
Ed McNierney
President and Chief Mapmaker
TopoZone.com / Maps a la carte, Inc.
73 Princeton Street, Suite 305
North Chelmsford, MA  01863
Phone: +1 (978) 251-4242
Fax: +1 (978) 251-1396
ed at topozone.com 


________________________________

From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On
Behalf Of Bruno Patini Furtado
Sent: Wednesday, August 09, 2006 10:59 AM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: [UMN_MAPSERVER-USERS] Image location inside its corner
coordinates


I have a DEM image of which below I've copied the gdalinfo output. 


Driver: GTiff/GeoTIFF
Size is 1800, 1200
Coordinate System is:
GEOGCS["WGS 84",
    DATUM["WGS_1984",
        SPHEROID["WGS 84",6378137,298.2572235630016,
            AUTHORITY["EPSG","7030"]],
        AUTHORITY["EPSG","6326"]], 
    PRIMEM["Greenwich",0],
    UNIT["degree",0.0174532925199433],
    AUTHORITY["EPSG","4326"]]
Origin = (-48.000416,-24.000416)
Pixel Size = (0.00083333,-0.00083333 )
Metadata:
  AREA_OR_POINT=Area 
  TIFFTAG_SOFTWARE=IMAGINE TIFF Support
Copyright 1991 - 1999 by ERDAS, Inc. All Rights Reserved
@(#)$RCSfile: etif.c $ $Revision: 1.10.1.9 $ $Date: 2003/11/13
19:25:49EST $
  TIFFTAG_XRESOLUTION=1
  TIFFTAG_YRESOLUTION=1
  TIFFTAG_RESOLUTIONUNIT=1 (unitless) 
Corner Coordinates:
Upper Left  ( -48.0004159, -24.0004163) ( 48d 0'1.50"W, 24d 0'1.50"S)
Lower Left  ( -48.0004159, -25.0004164 ) ( 48d 0'1.50"W, 25d 0'1.50"S)
Upper Right ( -46.5004159, -24.0004163) ( 46d30'1.50"W, 24d 0'1.50"S) 
Lower Right ( -46.5004159, -25.0004164) ( 46d30'1.50"W, 25d 0'1.50"S)
Center      ( -47.2504159, -24.5004163) ( 47d15'1.50"W, 24d30'1.50"S)
Band 1 Block=1800x2 Type=UInt16, ColorInterp=Gray
  Overviews: 450x300, 225x150, 113x75, 57x38


I could take from it the EXTENT to use in my Mapfile using the Lower
Left and Upper Right coordinates. But the problem is that the image is
to small inside this coordinates and I can't find the image location
inside then by this output. Is there some other utility to get this
coordinates? 


-- 
"Minds are like parachutes, they work best when open."

Bruno Patini Furtado
Software Developer
webpage: http://bpfurtado.net
software development blog: http://bpfurtado.livejournal.com 
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