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- function [xx,yy] = calcunitcoordinates(res)
- % function [xx,yy] = calcunitcoordinates(res)
- %
- % <res> is the number of pixels on a side
- %
- % return <xx> and <yy> which contain x- and y-coordinates corresponding
- % to equally spaced points within the space bounded by -.5 and .5.
- % these points can be treated as centers of pixels.
- %
- % example:
- % [xx,yy] = calcunitcoordinates(2);
- % isequal(xx,[-.25 .25; -.25 .25]) & isequal(yy,[.25 .25; -.25 -.25])
- % notice that the second argument proceeds from .5 to -.5.
- % this ensures that the results match the usual coordinate axes
- % where the top is the positive y-axis.
- [xx,yy] = meshgrid(linspacepixels(-.5,.5,res),linspacepixels(.5,-.5,res));
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