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From: LindsE on 12 Apr 2010 08:49
Hi there;

I believe this may be a fairly trivial job, but I'm certainly having
trouble with it as I'm new to such mapping functions.

I'm attempting to plot a Geotiff image in Matlab. I am able to view
the image using:
mapshow(filename) but the projection, as found using "geotiffinfo" is:
GCS = Unknown datum based upon the Authalic Sphere
Datum = Not specified (based on Authalic Sphere)
Ellipsoid = Sphere
CT Projection = CT_Stereographic

I want to somehow rotate the image such that it appears on a Mercator
Projection Map.

Based on what I've read, I understand that geoshow would be a good way
to do this, but when I try to plot: geoshow(filename)
I get a memory error:
"??? Error using ==> mtimes
Out of memory. Type HELP MEMORY for your options.
Error in ==> pix2map at 45
t = [row col] * R(1:2,:);

Error in ==> pixedges at 43
[x,y] = pix2map(R,r,c);

Error in ==> buildRasterData>buildTextureComponent at 272
[y, x] = pixedges(R, sz);

Error in ==> buildRasterData at 62
rasterdata = buildFcn(mapfilename, dataArgs, buildArgs{:});

Error in ==> georastershow at 149
rasterdata = buildRasterData( ...

Error in ==> geoshow at 256
h = showFcn(varargin{:});"



Can anyone offer a suggestion as to how I might be able to put this
image on a more common projection, it would certainly be appreciated.

Thanks in advance;
Lindsay
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