Why isn't animatedline showing a line plot?

Question

Rebecca Ward 2021-3-9

1
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/767447-why-isn-t-animatedline-showing-a-line-plot

评论： Rebecca Ward 2021-3-9

Hi, I'm trying to plot an animation with 4 subplots. It is working fine except that the plots only show up if I put in a marker, not just a line.

Here is the code - can anyone advise as to how to get lines to show?

load dfRH;
load xxout;
seq = 1:6:1418;
SimT = xxout(seq,3)-273.15;
ACH = csvread('ACH_AO_1000.csv');
IAS = csvread('IAS_AO_1000.csv');
ACH_mean = mean(ACH,2)*9+1;
IAS_mean = mean(IAS,2)*0.75+0.1;
figure('WindowStyle','docked');
for k = 1:100
    subplot(1,4,1)
    title('Relative Humidity Data');
    xlabel('timestep');
    ylabel('Relative Humidity (%)');
    h1 = animatedline('Marker','.','Color','b');
    xlim([1,100])
    ylim([0,100])
    x = k;
    y1 = dfRH(k,1)*100;
    addpoints(h1,x,y1);
        pause(0.05)
    drawnow
    
    subplot(1,4,2)
    title('Ventilation Rate');
    xlabel('timestep');
    ylabel('Ventilation Rate (ACH)');
    h2 = animatedline('Marker','o','Color','k');
    xlim([1,100])
    ylim([0,10])
    y2 = ACH_mean(k);
    addpoints(h2,x,y2);
        pause(0.05)
    drawnow
    
    subplot(1,4,3)
    title('Internal Air Speed');
    xlabel('timestep');
    ylabel('Internal Air Speed (m/s)');
    h3 = animatedline('Marker','x','Color','k');
    xlim([1,100])
    ylim([0,1])
    y3 = IAS_mean(k);
    addpoints(h3,x,y3);
        pause(0.05)
    drawnow
    
    subplot(1,4,4)
    title('Temperature');
    xlabel('timestep');
    ylabel('Temperature (^oC)');
    h4 = animatedline('Marker','.','Color','r');
    xlim([1,100])
    ylim([0,30])
    y4 = SimT(k);
    addpoints(h4,x,y4);
        pause(0.05)
    drawnow
end

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Answer 1

Cris LaPierre 2021-3-9

1
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https://ww2.mathworks.cn/matlabcentral/answers/767447-why-isn-t-animatedline-showing-a-line-plot#answer_643212

编辑：Cris LaPierre 2021-3-9

在 MATLAB Online 中打开

I think the animatedline commands should be outside the for loop. In fact, everything except for the addpoints related code should be outside the for loop.

Here's a simple example.

ax1 = subplot(1,4,1);
h1 = animatedline(ax1);
xlim([1,100])
ylim([0,100])
title('Ventilation Rate');
xlabel('timestep');
ylabel('Ventilation Rate (ACH)');
ax2 = subplot(1,4,2);
h2 = animatedline(ax2);
xlim([1,100])
ylim([0,-100])
title('Ventilation Rate');
xlabel('timestep');
ylabel('Ventilation Rate (ACH)');
x = 1:100;
y = 50*(sin(x)+1);
for k = 1:100
    ax1=subplot(1,4,1);
    addpoints(h1,x(k),y(k));
    drawnow
    
    subplot(1,4,2)
    addpoints(h2,x(k),-y(k));
    drawnow
end