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

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Johannes Köbele
Johannes Köbele 2020-8-9
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
Image Analyst
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
Johannes Köbele 2020-8-9
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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回答（1 个）

Alan Moses
Alan Moses 2020-8-12
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
Hope this helps!

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