updateDataCursor.m
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	function updateDataCursor(hThis,hNewDataCursor,~)
	%UPDATEDATACURSOR Updates DataCursor's position.
	%
	% Thanks to <a href="http://www.mathworks.com/matlabcentral/profile/authors/3354683-yaroslav">Yaroslav Don</a> for his assistance in updating cursorbar for
	% MATLAB Graphics and for his contribution of new functionality.

	% Copyright 2003-2016 The MathWorks, Inc.

	hAxes = get(hThis,'Parent');
	cp = get(hAxes,'CurrentPoint');
	pos = [cp(1,1) cp(1,2) 0];
	hTarget = hThis.Target;

	if isTargetAxes(hThis)
	% axes: ignore interpolation, just use the axes' CurrentPoint
	hNewDataCursor.DataSource.XData = pos(1);
	hNewDataCursor.DataSource.YData = pos(2);

	else
	% put the DataCursor in a correct place
	[x,y,n] = closestvertex(hThis,pos);
	if ~isscalar(hTarget)
	if isa(hTarget,'matlab.graphics.chart.interaction.DataAnnotatable')
	hNewDataCursor.DataSource = hTarget(n);
	else
	hNewDataCursor = createNewDataCursor(hThis,hTarget(n));
	end
	end

	% update the DataCursor
	if strcmp(hAxes.Parent.Type,'figure')
	% update directly
	hNewDataCursor.Position = [x y 0];
	else
	% if the parent is not a figure (e.g., panel), the position of the
	% DataCursor is not rendered correctly; thus, a change of parents
	% is mandatory
	axesPar = hAxes.Parent;
	hAxes.Parent = ancestor(hAxes,'figure');
	hNewDataCursor.Position = [x y 0];
	hAxes.Parent = axesPar;
	end
	end