addpoints
Add points to animated line
Description
addpoints(
adds points defined by an,x,y)x and y to the animated
line specified by an. Create an animated line with the animatedline function. To display
the updates on the screen, use drawnow or drawnow
limitrate. New points automatically connect to previous points.
Examples
Create an animated line object with no data. Then, add five points to the line. Use a circle to mark each point.
h = animatedline('Marker','o'); x = 1:5; y = 1:5; addpoints(h,x,y)
To plot nonnumeric points, such as datetime and duration values, start by initializing the animated line with values of the type you want to plot. You can specify either the first point in your plot or placeholder values such as NaT or NaN.
For example, plot datetime values on the x-axis and duration values (minutes) on the y-axis. Initialize the animated line with a NaT value and a minutes(NaN) value. Then create a datetime vector (x) and a duration vector (y) and add the points in those vectors to the animated line.
an = animatedline(NaT,minutes(NaN),"Marker","o"); x = datetime(2018,5,1:5); y = minutes([1 7 3 11 4]); addpoints(an,x,y)
Create an animated line using the animatedline function. Then, add points to the line within a loop to create an animation. Set the axis limits before the loop to prevent the limits from changing.
figure h = animatedline; axis([0 4*pi -1 1]) for x = linspace(0,4*pi,10000) y = sin(x); addpoints(h,x,y) drawnow limitrate end
