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Adding line change the size of the image

조회 수: 1(최근 30일)
Aurélie B
Aurélie B 2021년 5월 6일
댓글: Aurélie B 2021년 5월 6일
Hi!
I am currently working on adding lines above a image in App Designer, but when I add these lines, the image changes size and I don't want it to. Can someone help me please?
M is a 4D matrix(160,130,26,14)
profondeur, hauteur, largeur, temps are sliders, and angle 1,5 are knob
I=M(:,:,floor(profondeur),floor(temps));
affichagelignex(app);
J=imresize(I,[160 130]);
imshow(J,[],'Parent',app.UIAxes);
function affichagelignex(app)
profondeur = app.zaxegauchedroiteSlider.Value;
hauteur = app.yaxeavantarrireSlider.Value;
largeur = app.xaxepiedstteSlider.Value;
angle1 = app.AngleXYKnob.Value;
angle5 = app.AngleXZKnob.Value;
persistent h1
persistent h5
if (isempty(h1)&& isempty(h5))
h1=line(app.UIAxes,[0 130],[largeur largeur],'Color','green');
h5=line(app.UIAxes3,[0 26],[largeur largeur],'Color','green');
else
h1=line(app.UIAxes,[0 130],[largeur-hauteur*tand(angle1) largeur+(130-hauteur)*tand(angle1)],'Color','green');
h5=line(app.UIAxes3,[0 26],[largeur-profondeur*tand(angle5) largeur+(26-profondeur)*tand(angle5)],'Color','green');
end

답변(1개)

Chad Greene
Chad Greene 2021년 5월 6일
Can you get the axis limits before plotting the lines, and then set the axis back to those limits afterwards? Something like this:
ax = axis; % GET THE AXIS LIMITS
if (isempty(h1)&& isempty(h5))
h1=line(app.UIAxes,[0 130],[largeur largeur],'Color','green');
h5=line(app.UIAxes3,[0 26],[largeur largeur],'Color','green');
else
h1=line(app.UIAxes,[0 130],[largeur-hauteur*tand(angle1) largeur+(130-hauteur)*tand(angle1)],'Color','green');
h5=line(app.UIAxes3,[0 26],[largeur-profondeur*tand(angle5) largeur+(26-profondeur)*tand(angle5)],'Color','green');
end
axis(ax) % SET THE AXIS LIMITS
  댓글 수: 10
Aurélie B
Aurélie B 2021년 5월 6일
Thank you so much for helping me :)

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