Make an interactive plot which will allow you to draw a continuous line with 3 segments

figure; hold on

xlim([0 1])

ylim([0 1])

plot(rand(1),rand(1),'o')

for i = 1 : 3

[x1 y1] = ginput( 1 );

plot( x1, y1, '+')

this is what i have but it only gives me dots not lines

Answer 1

[Rik]

You're only supplying single points to the plot function. If you want a line, you should first gather all the points and then call the plot function once.

Alternatively you can create a line object with plot and edit the XData and YData properties inside your loop.