For a map with ETOPO, how to limit elevation [Z] such that the plotted marker and name are not covered by the map?
Right now, my marker and name is covered by the elevation. I tried editing [Z], a 1200 x 1950 double, which is madness, and I know this is not the way to alter the elevation. Not allowed to use any additional mapping toolbox.
% Creating figure
figure% Construct map axes for region
worldmap australia% Returning the map projection structure from the current map axes
mstruct = gcm;% Defining limits for lat and long - adjusting map axis
latlim = mstruct.maplatlimit;lonlim = mstruct.maplonlimit;% Read ETOPO file within the specified lat and long limits
% "Z" is data grid, an array of elevations
% "refvec" is the three-element referencing vector
[Z, refvec] = etopo(etopoFile,2, latlim, lonlim);% Plotting marker on map
plotm(-37.814, 144.96332, '.k','markersize',8)% Naming on map
textm(-37.814, 144.96332,point name,'FontSize',12)% Displaying map data, with extracted etopo value
geoshow(Z, refvec, 'DisplayType', 'surface');% Color the map based on the terrain elevation data, Z.
demcmap(Z, 500);
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