Bugfix, the track parameter have been deleted after closing the window.

lib/+artoa/+controller/+track/+parameter/close.m

-function [ ] = close()
+function [ ] = close(~, ~)
 %CLOSEREQ Cleans up all variables that are used by the trackParameter GUI.
 %   Changes to the data are dropped.
 
-global artoaGui artoaWorkspace;
+global artoaGui;
 
 %% Close the figure
 
@@ -12,7 +12,9 @@ delete(artoaGui.figures.trackParameter);
 
 artoaGui = rmfield(artoaGui, 'trackParameter');
 artoaGui.figures = rmfield(artoaGui.figures, 'trackParameter');
-artoaWorkspace = rmfield(artoaWorkspace, 'trackParameter');
+% Workspace is not cleaned, because we need the values after closing the
+% window
+%artoaWorkspace = rmfield(artoaWorkspace, 'trackParameter');
 
 end