Problem with hold on plot

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Cristián Vera
Cristián Vera 2020-2-3
评论： Adam Danz 2020-2-4
Hi, im working with some data, specifically the particles in a nozzle.
The point is that I want to create an animation using plot and for. To do this, I made a sketch of the nozzle using simple lines with plot, then for takes care of showing particles.
The problem I have is that because I need to show the sketch and the particles, I use hold on, which generates a repetition in the data of particles, which I dont want. How can I solve this problem? Be able to graph the particles and the sketch in the animation without repeating particle data.
Here is the sketch:
bosquejo.jpg
And that's how it shouldn't look:
no.jpg
And this is how it should look, but with the background sketch:
si.JPG
Animation code, just in case:
figure
hold on
title(['Velocidad en alimentador ' titulo])
for time=1:20:size(Xt,2);
pointsize=5;
plot([180e-3,180e-3],[-10e-3,10e-3],'LineWidth',4)
plot([0,20]*1e-3,[17.5,17.5]*1e-3,'k',[20,40]*1e-3,[17.5,1]*1e-3,'k',[40,170]*1e-3,[1,8]*1e-3,'k',[170,170]*1e-3,[8,-8]*1e-3,'k',[170,40]*1e-3,[-8,-1]*1e-3,'k',[40,20]*1e-3,[-1,-17.5]*1e-3,'k',[20,0]*1e-3,[-17.5,-17.5]*1e-3,'k',[0,0]*1e-3,[-17.5,17.5]*1e-3,'k')
scatter(Xt(:,time),Yt(:,time), pointsize, Vt(:,time),'filled')
ylim([-18e-3,18e-3])
xlim([0e-3,180e-3])
pause(0.001)
end
I hope the question is understood.
Greeting and thank you very much in advance!

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采纳的回答

Adam Danz
Adam Danz 2020-2-3
The loop should only contain the data you're adding to the plot.
Try this out.
figure
axes()
hold on
ylim([-18e-3,18e-3])
xlim([0e-3,180e-3])
title(['Velocidad en alimentador ' titulo])
pointsize=5;
plot([180e-3,180e-3],[-10e-3,10e-3],'LineWidth',4)
plot([0,20]*1e-3,[17.5,17.5]*1e-3,'k',[20,40]*1e-3,[17.5,1]*1e-3,'k',[40,170]*1e-3,[1,8]*1e-3,'k',[170,170]*1e-3,[8,-8]*1e-3,'k',[170,40]*1e-3,[-8,-1]*1e-3,'k',[40,20]*1e-3,[-1,-17.5]*1e-3,'k',[20,0]*1e-3,[-17.5,-17.5]*1e-3,'k',[0,0]*1e-3,[-17.5,17.5]*1e-3,'k')
for time=1:20:size(Xt,2);
scatter(Xt(:,time),Yt(:,time), pointsize, Vt(:,time),'filled')
pause(0.001)
end
  9 个评论
显示 7更早的评论
Cristián Vera
Cristián Vera 2020-2-4
It worked!!! Thank you for your time and kindly help!
What a relief... =)
Adam Danz
Adam Danz 2020-2-4
Ha! Glad I could help.

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