Delete parts of plotted figures?
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ErikJon Pérez Mardaras
le 23 Oct 2020
Commenté : Star Strider
le 28 Oct 2020
I have made this image
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/390393/image.png)
with this code:
axis equal
hold on
caca=2*pi();
ang=linspace(0,caca);
xp=5*cos(ang);
yp=5*sin(ang);
circ=[xp;yp];
plot(xp,yp,'r');
L1=[-8 8; 3 3];
plot(L1(1,:),L1(2,:),'b')
And I want to delete the part of the line within the circle and the part of the circle under the line so the image results like this:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/390398/image.png)
Is there any way of achieving that? How can I do it?
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Star Strider
le 23 Oct 2020
Try this:
axis equal
hold on
caca=2*pi();
ang=linspace(0,caca);
xp=5*cos(ang);
yp=5*sin(ang);
circ=[xp;yp];
L1x = linspace(-8, 8);
L1y = 3*ones(size(L1x));
L1=[L1x; L1y]; % Re-define Line
incirc = inpolygon(L1x,L1y,circ(1,:),circ(2,:));
L1(1,incirc) = NaN;
L1(2,incirc) = NaN;
plot(xp(yp>=3),yp(yp>=3),'r');
plot(L1(1,:),L1(2,:),'b')
.
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