how can i animate the line using for loop and if statement

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Rajawarman Thiruselvam 2021-7-6

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https://ww2.mathworks.cn/matlabcentral/answers/872698-how-can-i-animate-the-line-using-for-loop-and-if-statement

评论： Mathieu NOE 2021-7-7

采纳的回答： Mathieu NOE

clear all

close all

clc

h = animatedline;

axis([1 4 1 4])

for x=1:4

if x==1

y(x)=1;

elseif x==2

y(x)=1;

elseif x==3

y(x)=2;

elseif x==4

y(x)=1;

elseif x>4

break;

addpoints(h,x(x),y(x));

drawnow

x=1:4;

end

I want the line should be move slowly through these points, please help me to fix this.

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采纳的回答

Mathieu NOE 2021-7-6

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/872698-how-can-i-animate-the-line-using-for-loop-and-if-statement#answer_740793

在 MATLAB Online 中打开

hello

you can do much simpler , as x and y are fully defined in the initialization section , then you only have to loop - four times and that's it ! no need for if elseif statements

clear all
close all
clc
figure
h = animatedline;
axis([0 5 0 5])
x=1:4;
y = [1 1 2 1];
for ci=1:4
        addpoints(h,x(ci),y(ci));
        pause(0.5);
        drawnow
        
end
    

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Rajawarman Thiruselvam 2021-7-7

Thank you! how can i change the colors of these lines except red,blue, green

for example i want orange and dark green or some other colors. how can i do this??

Mathieu NOE 2021-7-7

在 MATLAB Online 中打开

hello

see

Color specification - MATLAB ColorSpec (Color Specification) - MathWorks France

code updated for orange and green colors

clear all
close all
clc
figure
h1 = animatedline;
h1.Marker = '*';
h1.Color = [1 0.4 0]; % orange
h2 = animatedline;
h2.Marker = '+';
h2.Color = [0 1 0]; % green
axis([0 5 0 5])
x1=1:4;
n = 100;
xx1=linspace(x1(1),x1(end),n);
y1 = [1 1 2 1];
y2 = [2 2 3 2]; 
yy1 = interp1(x1,y1,xx1);
yy2 = interp1(x1,y2,xx1);
for ci=1:n
        addpoints(h1,xx1(ci),yy1(ci));
        addpoints(h2,xx1(ci),yy2(ci));
        pause(0.1);
        drawnow
        
end
    