Plot pressure over a curve (2D airfoil)

Hello

I want to plot the pressure over a 2D shape of an airfoil in MATLAB. I want the value of the pressure to be shown as vectors on some specific points on the curve with various lengths showing the amount of pressure. Does anyone have any clue of how to do it?

Thank you very much.

Answer 1

[Walter Roberson]

http://www.mathworks.com/help/matlab/ref/quiver.html

[Maryam]

Thank you for very much your response. Actually, for quiver I need to have the x, y, and velocity vector. However, I want the pressure which is a scalar value, normal to that point. I also want these vectors to show the value of pressure at each point. I mean on those point with higher pressure, I want to have a longer vector. Thank you again.