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5c481dd
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SVMCrossVal.git
private
fbs_buildSphere.m
debugging
Christoph Budziszewski
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5c481dd
at 2009-04-26 18:27:56
fbs_buildSphere.m
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function sphere = fbs_buildSphere(mapping,center,radius,vdim) if radius == 0 sphere = center; return end iVoxel = 1; % returns the IDs within Sphere coord = mapping.indexToCoordMap.get(center); vxrad = ceil((radius*ones(1,3))./(ones(1,1)*vdim))'; [x y z] = ndgrid(-vxrad(1,iVoxel):sign(vdim(1)):vxrad(1,iVoxel), ... -vxrad(2,iVoxel):sign(vdim(2)):vxrad(2,iVoxel), ... -vxrad(3,iVoxel):sign(vdim(3)):vxrad(3,iVoxel)); sel = (x./vxrad(1,iVoxel)).^2 + (y./vxrad(2,iVoxel)).^2 + ... (z./vxrad(3,iVoxel)).^2 <= 1; x = coord(1,1)+x(sel(:)); y = coord(2,1)+y(sel(:)); z = coord(3,1)+z(sel(:)); sphere = []; for iCoord = 1:size(x,1); key = java.util.Vector(3,0); key.add(0,x(iCoord)); key.add(1,y(iCoord)); key.add(2,z(iCoord)); id = mapping.coordToIndexMap.get(key); sphere = [sphere id]; end end
