Multiple points using drawpoint in a panel with imscrollpanel

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Muhammad Abir
Muhammad Abir 2021년 4월 29일
I have a code that opens two images and a scroll panel of the same images, and using drawpoint to select points to get the coordinates. I need to scroll the draggable window to select the points from different location of the image. The problem is when I drag the draggable window, the program selects a points before I even click the top image. Any solution will be greatly appreciated.
clc; % Clear the command window.
close all; % Close all figures (except those of imtool.)
imtool close all; % Close all imtool figures if you have the Image Processing Toolbox.
clear; % Erase all existing variables. Or clearvars if you want.
workspace; % Make sure the workspace panel is showing.
format long g;
format compact;
fontSize = 13;
scr_siz = get(0,'ScreenSize') ;
hFigL = figure ('Name','Control Point Selection','NumberTitle','off', 'Renderer',...
'painters', 'Position', [10 10 1800 1200], 'Toolbar', 'none',...
'Menubar', 'none');
movegui(hFigL,'center');
subplot(121)
ImageL= rgb2gray(imread('saturn.png'));
ImageL= imrotate(ImageL, -45);
hImL = imshow(ImageL);
axes1Handle=gca;
[M1, N1]= size(ImageL);
subplot(122)
ImageR= rgb2gray(imread('saturn.png'));
hImR= imshow(ImageR);
axes2Handle=gca;
[M2, N2]= size(ImageR);
hSPL = imscrollpanel(hFigL,hImL); % Handle to scroll panel.
set(hSPL,'Units', 'normalized',...
'Position', [0, .5, 0.5, .5])
hSPR = imscrollpanel(hFigL,hImR);
set(hSPR,'Units','normalized',...
'Position',[0.5 0.5 0.5 0.5])
hMagBox = immagbox(hFigL, hImL);
boxPositionL = get(hMagBox, 'Position');
set(hMagBox,'Position', [0, 0, boxPositionL(3), boxPositionL(4)]);
hOvPanelL = imoverviewpanel(hFigL,hImL);
set(hOvPanelL,'Units','Normalized', 'Position',[0 0 0.5 .5]);
hMagBoxR = immagbox(hFigL, hImR);
boxPositionR = get(hMagBoxR, 'Position');
set(hMagBoxR,'Position', [0, 0, boxPositionR(3), boxPositionR(4)])
hOvPanelR = imoverviewpanel(hFigL,hImR);
set(hOvPanelR,'Units','Normalized','Position',[0.5 0 0.5 .5]);
% Get the scroll panel API to programmatically control the view.
apiL = iptgetapi(hSPL);
apiL.setMagnification(2);
apiR = iptgetapi(hSPR);
apiR.setMagnification(2);
% Get the current magnification and position.
mag1 = apiL.getMagnification();
r1 = apiL.getVisibleImageRect();
%
apiL.setVisibleLocation(0.5,0.5);
apiR.setVisibleLocation(0.5,0.5);
%
mag2 = apiR.getMagnification();
r2 = apiR.getVisibleImageRect();
%
apiL.setMagnification(apiL.findFitMag())
apiL.setMagnificationAndCenter(4,M1/2,N1/2)
%
apiR.setMagnification(apiR.findFitMag())
apiR.setMagnificationAndCenter(4,N2/2,M2/2)
i=1;
while (i < 6)
axes(axes1Handle)
h1= drawpoint('Color','r');
h1.Label = sprintf('%d', i);
h1.LabelAlpha= 0;
h1.LabelTextColor= 'g';
x1(i)= h1.Position(1);
y1(i)= h1.Position(2);
axes(axes2Handle)
h2 = drawpoint('Color','r');
h2.Label = sprintf('%d', i);
h2.LabelAlpha= 0;
h2.LabelTextColor= 'g';
x2(i)= h2.Position(1);
y2(i)= h2.Position(2);
i = i + 1;
end
P= [x1; y1]
Q= [x2; y2]

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