MATLAB Function Reference (Volume 2: Graphics)

Image PropertiesWhen a handle is not visible in its parent’s list of children, it cannot be returnedby functions that obtain handles by searching the object hierarchy or queryinghandle properties. This includes get, findobj, gca, gcf, gco, newplot, cla, clf,and close.When a handle’s visibility is restricted using callback or off, the object’shandle does not appear in its parent’s Children property, figures do not appearin the root’s CurrentFigure property, objects do not appear in the root’sCallbackObject property or in the figure’s CurrentObject property, and axesdo not appear in their parent’s CurrentAxes property.You can set the root ShowHiddenHandles property to on to make all handlesvisible, regardless of their HandleVisibility settings (this does not affect thevalues of the HandleVisibility properties).Handles that are hidden are still valid. If you know an object’s handle, you canset and get its properties, and pass it to any function that operates on handles.HitTest{on} | offSelectable by mouse click. HitTest determines if the image can become thecurrent object (as returned by the gco command and the figure CurrentObjectproperty) as a result of a mouse click on the image. If HiTest is off, clicking onthe image selects the object below it (which maybe the axes containing it).Interruptible{on} | offCallback routine interruption mode. The Interruptible property controlswhether an image callback routine can be interrupted by subsequently invokedcallback routines. Only callback routines defined for the ButtonDownFcn areaffected by the Interruptible property. MATLAB checks for events that caninterrupt a callback routine only when it encounters a drawnow, figure,getframe, or pause command in the routine.Parenthandle of parent axesImage’s parent. The handle of the image object’s parent axes. You can move animage object to another axes by changing this property to the new axes handle.Selectedon | {off}Is object selected? When this property is on, MATLAB displays selectionhandles if the SelectionHighlight property is also on. You can, for example,2-240