Overlay features on a very large R-Set image using imtool

I am currently using imtool to view a very large composite satellite image which has been converted to a R-Set file. How can I overlay a number of feature files (shape files) that will be retained through zooming, panning etc?

[Anna Weeks]

I have managed to achieve what I wanted by adding the following to the MATLAB toolbox file RSETTileManager.m (see attached file) Could this could be incorporated as a standard feature of imtool?

%% Allow line features to be retained other_objs = findall(obj.ax,'type','line'); for i = 1:numel(other_objs) uistack(other_objs(i),'top'); end %%

[Anand]

I don't see an attachment...