Fixed bug with physical voxel size. Was reading r,c instead of x,y

src/c/Mex/MexInitVolume.cpp

@@ -29,7 +29,7 @@ void MexInitVolume::execute(int nlhs, mxArray* plhs[], int nrhs, const mxArray*
 	{
 		// TODO: Should look over this and verify it's right for x-y anisotropy!
 		double* physData = (double*)mxGetData(prhs[1]);
-		physVoxel = Vec<float>(physData[1], physData[0], physData[2]);
+		physVoxel = Vec<float>(physData[0], physData[1], physData[2]);
 	}
 
 	// Compute total volume size in physical units