how to plot the number of each run/plot in a scatterplot

Question

Johannes Köbele 2020-8-9

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/577282-how-to-plot-the-number-of-each-run-plot-in-a-scatterplot

回答： Alan Moses 2020-8-12

tried to realize the problem by using annotations, but the programm overwrites and keeps the number of the loop-variable zas in the plot. This produces a "black numberball". Is it possible to delete the privious number?

figure(1)
v = VideoWriter('testvideo1.avi');
open(v);
for zas=1:Schritte
    
    plot([untere_Grenze untere_Grenze],[ Grenze untere_Grenze], 'black'); % Gerade 
    title('Stickstoffgenerator')
    hold on
    plot([Grenze untere_Grenze],[untere_Grenze untere_Grenze], 'black'); % Gerade 
    hold on
    plot([Grenze Grenze],[Grenze untere_Grenze], 'black');
    hold on
    plot([untere_Grenze Grenze],[Grenze Grenze], 'black');
    hold on
    plot([0 0],[untere_Grenze Grenze], 'magenta'); % Membran
    hold on
    txt={'N2 sind um den Faktor X und O2 sind um den Faktor Y vergrößert'};
    text(1.3,1.5, 'Stickstoff', 'HorizontalAlignment','left', 'Color', 'r')
    text(1.3,1.7, 'Sauerstoff', 'HorizontalAlignment','left', 'Color', 'b')
    a=annotation('textbox',[.6 .8 .7 .2],'String',txt,'EdgeColor','none');
    
    
    numbzas=annotation('textbox',[.1 .8 .7 .2],'String',zas,'EdgeColor','none');  % used annotation !!!
    
    a.FontSize=5.4;
    
    for zp=1:2:(2*Anzahl_mol)
    
    xlim([untere_Grenze+3/10*untere_Grenze Grenze+3/10*Grenze])
    ylim([untere_Grenze+3/10*untere_Grenze Grenze+3/10*Grenze])
   
    scatter(Vector_Lage(zp,zas),Vector_Lage(zp+1,zas),350*R,'filled','red')%,'markerfacecolor','red')
    hold on
    
    end
    for zp=(2*Anzahl_mol)+1:2:(2*Gesamt_Mol)
    
    xlim([untere_Grenze+3/10*untere_Grenze Grenze+3/10*Grenze])
    ylim([untere_Grenze+3/10*untere_Grenze Grenze+3/10*Grenze])
    scatter(Vector_Lage(zp,zas),Vector_Lage(zp+1,zas),200*R2,'filled', 'blue')%,'markerfacecolor','red')
    hold on
        
    end
    
pause(.005)
frame =getframe(gcf);
writeVideo(v,frame);
hold off
end
close(v);

2 个评论
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Image Analyst 2020-8-9

It's hard to visualize what's going on without the video. Please attach a short video in a zip file.

Johannes Köbele 2020-8-9

testvideo1.zip

The mentioned "black numberball" is in the top left corner. I hope you can open the file and thanks a lot!

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Answer 1

Alan Moses 2020-8-12

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/577282-how-to-plot-the-number-of-each-run-plot-in-a-scatterplot#answer_478413

在 MATLAB Online 中打开

Hi,

Yes, it is possible to modify the number of each run. Initialize the annotation outside the loop and change the text inside the loop. Please try the following method:

txt = '';
numbzas=annotation('textbox',[.1 .8 .7 .2],'String',txt,'EdgeColor','none')
for zas=1:Schritte
    txt = sprintf('Run number: %d ',zas);
    set(numbzas,'String',txt)
end