MATLAB: Draw an arc between two points –> (x1,y1,z1) and (x2,y2,z2)

3d plotsarcdraw

Hi. I have several points on the sphere. I want to combine these points with arc. I can draw these points with lines but I can't draw arcs Please help

Best Answer

hi, you can try drawing a circle but restrict it into certain region,
I started a code, try to adjust/enhance it :
 % Draw an arc between two points 
 p1=[-2 -2 -3];
 p2=[10 15 20];
 % Circle x²+y²+z²=Constant
 %=> z=sqrt(Constant-x²-y²-);
 Center=((p2+p1))./2;
 xc=Center(1);
 yc=Center(2);
 zc=Center(3);
 % Radius
 R=norm((p2-p1))/2;
 %Min=min(min(p1,p2));
 %Max=max(max(p1,p2));
 %x=linspace(Min,Max,20);
 %y=linspace(Min,Max,20);
 x=linspace(p1(1),p2(1),200);
 y=linspace(p1(2),p2(2),200);
 z=zc+sqrt((R^2)-((x-xc).^2)-((y-yc).^2));
 figure, plot3(x,y,z), grid on, hold on
 plot3(p1(1),p1(2),p1(3),'*','MarkerSize',10),
 plot3(p2(1),p2(2),p2(3),'*','MarkerSize',10),
 hold on, plot3(xc,yc,zc,'*','MarkerSize',10)
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