How to plot a center of pressure plot, where the plot is constantly being updated and the new point connects to the previous point.

I have my x and y values stored in a .mat file. Is there a way to display them where the new point in connected to the previous point as shown in the example image below.

[KSSV]

USe plot

Answer 1

[Image Analyst]

s = load(fileName)
x = s.x;
y = s.y;
plot(x, y, 'b-', 'LineWidth', 2);
grid on;
xlabel('x');
ylabel('y');

[Jonas Bender]

Dear Image Analyst,

this works well. However, why is this dot indexing for x and y?

Thanks, Jonas

[Image Analyst]

The way we usually recommend getting variables from a MAT file is to load all of them into a single structure variable, which can avoid cluttering up a workspace with lots more variables that might not be needed. Then to get a variable, which is a field of the structure you can use the normal OOP dot referencing method. From the help:

S = load(___) loads data into S, using any of the input argument combinations in previous syntaxes. If filename is a MAT-file, then S is a structure array; if filename is an ASCII file, then S is an m-by-n double-precision array containing data from the file, where m is the number of lines in the file and n is the number of values on each line.