Use Plot as function

Hey People,

im trying to implement a multiple live plot function for my data. Instead of long description, here some code for understanding:

Main:

while plotting == true
for i=0:0.05:10  
x = sin(i);
Input.Value(1,1) = i;
Input.Value(1,2) = x;
y = cos(i);
Input.Value(2,1) = i;
Input.Value(2,2) = y;
plotting = Liveplot(Input);
end
end

and the Liveplot function:

function [Running] = Liveplot(Input)
for i=1:size(Input.Value,1)
    figure(i);
    hold on;
    plot(Input.Value(i,1),Input.Value(i,2));
    drawnow;
    hold off;
end
end

(sure some code between is missing, hope you understand my thinking)

I want a line between my parameters - a graph, interpolation, ... and not only points at the plot (see image below)

If i dont tell my plot to make '+', i dont see any points at the plot.

How can i see my graph of the datapoints (the line between)?

(at picture both functions in one plot...)

Answer 1

[madhan ravi]

https://www.mathworks.com/help/matlab/ref/animatedline.html

[Marco Poppe]

Can you give me some example code? I dont get this ..

[madhan ravi]

See https://www.mathworks.com/matlabcentral/answers/439232-a-loop-problem-in-matlab#answer_355911 and the link in the answer there are lot of examples.

Answer 2

[Sayyed Ahmad Fani Yazdi]

if you change your code to the following code

clear all
close all
clc

count=1
In.Value(1,1) = 0;
In.Value(2,1) = 0;

for i=0:2*pi/100:2*pi  
x = sin(i);
y = cos(i);
In1.Value(1,count) = i;
In1.Value(2,count) = x;
In2.Value(1,count) = i;
In2.Value(2,count) = y;
count=count+1
end
Liveplot(In1)
hold on
Liveplot(In2)

and overload your plot function like this.

function Liveplot(In)
    plot(In.Value(1,:),In.Value(2,:),'b-')
end

[Marco Poppe]

Then i dont have the option to see my plot in time while simulating. Im trying to write a liveplot function

[Sayyed Ahmad Fani Yazdi]

change in your liveplot function

plot(Input.Value(i-1:1,1),Input.Value(i-1:i,2),'-b');

so your code create a line and not a point.