can someone tell my what does this do please..?? set(gca, 'XTick', [])

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this is the code im using.
axes(handles.axes1); UP = imagesc(imread('UP.jpg')); set(gca, 'XTick',[]); set(gca, 'YTick',[]); set(gca, 'XColor','w'); set(gca, 'YColor','w'); axes(handles.axes2); DOWN = imagesc(imread('DOWN.jpg')); set(gca, 'XTick',[]); set(gca, 'YTick',[]); set(gca, 'XColor','w'); set(gca, 'YColor','w'); set(handles.axes1,'hittest','off'); set(UP,'hittest','off'); set(handles.axes2,'hittest','off'); set(DOWN,'hittest','off');
I don't know what is gca used for. And also I have this part of the code which I don't know what is used for either.
_handles.xy1 = round(get(handles.axes1,'Currentpoint')); x1 = handles.xy1(1,1); y1 = handles.xy1(1,2);_
Sorry if this is a very simple question. This is all new to me.

Answers (2)

Jamie
Jamie on 27 Nov 2013
Hi Jonathan,
The command sets the axis tick labels for the current figure. gca gets the axis of the current figure (Get Current Axis) XTick and YTick are the properties in which MATLAB stores the location of the respective tick marks
  1 Comment
Jamie
Jamie on 27 Nov 2013
Edited: Jamie on 27 Nov 2013
handles.axes2 is simply an axis handle i.e.
axis_handle = findobj(gcf,'type','axis')

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Image Analyst
Image Analyst on 27 Nov 2013
set(gca, 'XTick', []) removes the tick marks from the x axis.

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