Hi,

I need to draw a vector 5eg velocity) centered on a point. The
general structure is the following:

vel=[vx1 vy1; vx2 vy2; ...]
center = [X1 Y1; X2 Y2; ...]

where vx1 and vy1 are velocities on x and y at time step 1 and so on,
and X1 Y1 represent the position on which the vector is applied at
time step 1 and so on...

How can I write a routine? (mainly I don't know the commands for
drawing the vector)

And if I have more than 1 vector/center to draw at each time step?

Thanks

no answer?

"Steve" <mail.plutus@gmail.com> wrote in message 
news:eefef54.-1@webx.raydaftYaTP...
> Hi,
>
> I need to draw a vector 5eg velocity) centered on a point. The
> general structure is the following:
>
> vel=[vx1 vy1; vx2 vy2; ...]
> center = [X1 Y1; X2 Y2; ...]
>
> where vx1 and vy1 are velocities on x and y at time step 1 and so on,
> and X1 Y1 represent the position on which the vector is applied at
> time step 1 and so on...
>
> How can I write a routine? (mainly I don't know the commands for
> drawing the vector)
>
> And if I have more than 1 vector/center to draw at each time step?

See HELP QUIVER or HELP LINE.

-- 
Steve Lord
slord@mathworks.com