How to draw the both sided arrow lines.

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Smithy le 15 Déc 2022
Commenté : Smithy le 15 Déc 2022
Hello everybody,
I would like to draw a line with both sided arrow. And I tried with quiver function.
I can make the one sided arrow head with this function. I checked matlab document and example,
but I did not find the way how to draw the both sided arrow lines.
plot([0 0],[0 10],'k'); hold on;
plot([10 10],[0 10],'k');
quiver(0, 0, 10, 0, 'off', 'k'); % scale 'off'
axis([-10 20 -10 20])

Réponse acceptée

Walter Roberson
Walter Roberson le 15 Déc 2022
annotation('doublearrow', x, y)
Be careful! The default units are 'normalized' (to the figure), and there is no way to select 'data' units. This means that you cannot draw an annotation in an axes, you can only draw an annotation that happens to align with the axes based on the current axes position... and which will probably get misaligned if you move or resize or zoom or pan the axes.
Because of these faults, you should look in the File Exchange for replacements that at least build the positions based on data coordinates, and which might know how to automatically reposition.
  1 commentaire
Smithy le 15 Déc 2022
Thank you very much for your kind answer. As your proposal, I found the function of Normalized Coordinates for Annotations in File Exchange. Now it works well. Thank you once more.

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