how can I draw a line knowing just the midpoint and the angle?

how can I draw a line knowing just the midpoint and the angle?

Answer 1

[Hugo]

You can do this

midpoint=[a,b]; % This defines the midpoint. You should give a and b some value. lineangle=c; % This defines the angle. Use this if your angle is in radians. lineangle=c*pi/180; % This defines the angle. Use this if your angle is in degrees.

L=1; % This defines the length of the line

x=[-.5,.5]*L*cos(angle)+midpoint(1); y=[-.5,.5]*L*sin(angle)+midpoint(2); plot(x,y);

That's all

Hope this helps.

[Mark]

Thank you very much Hugo!