Changing quiver arrow vertices

Hi,

I need to be able to set the length of the quiver arrows depending on a certain magnitude and without using the scaling properties.

For that I have made a function that adjust the vertices position for the Tail and Head of the quiver plots (the quiver.Head.VertexData and quiver.Tail.VertexData).

No problem in creating the new values for the vertices.

I set the new properties using set(q_handle,'VertexData',VertexData) and I see that the new data are now in the quiver handle.

Now comes the problem...

This does not show graphically on the plot except if I request matlab to pause (for at least 0.011 sec) or if I change it while in KEYBOARD mode.

Is there a work around so that I don't have to ask it to pause?

I need to make a lot of quiver plots on the same figure (due to different mesh sizes) and these quickly add-up...

Cheers,

Alex.

ps: I use '9.5.0.1049112 (R2018b) Update 3'

[dpb]

drawnow help, maybe???

[De Spiegeleer Alexandre]

I tried but that did not help.