griddensity.m
dd5453d97d74master

griddensity.m
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			classdef griddensity < gridquantity

			properties
			invVolume
			end

			methods
			function obj=griddensity(filename, dataset, nr, nz, Volume, MacropartSize, centered)
			if nargin<6
			MacropartSize=1;
			end
			if nargin<7
			centered=false;
			end
			obj=obj@gridquantity(filename, dataset, nr, nz, MacropartSize, centered);
			obj.invVolume=1./Volume;
			obj.invVolume(isinf(obj.invVolume))=0;
			if centered
			obj.invVolume=padarray(obj.invVolume,[1,1],0,'post');
			end
			end

			function quantity=val(obj,indices)
			if indices{1}==':'
			r=1:obj.nr;
			else
			r=indices{1};
			end
			if indices{2}==':'
			z=1:obj.nz;
			else
			z=indices{2};
			end
			if indices{3}==':'
			t=1:obj.nt;
			else
			t=indices{3};
			end
			quantity=val@gridquantity(obj,indices);
			for i=1:size(quantity,3)
			quantity(:,:,i)=quantity(:,:,i).*obj.invVolume(r,z);
			end
			end
			end
			end