comp.lang.idl-pvwave archive: archive » How to draw a 2-D arrow [1,2] at point [3,4]?

Home » Public Forums » archive » How to draw a 2-D arrow [1,2] at point [3,4]?

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

How to draw a 2-D arrow [1,2] at point [3,4]? [message #66237]

Mon, 27 April 2009 17:39

litongmu
Messages: 7
Registered: October 2008

Junior Member

Hi all,

I am trying to draw 2-D arrows like a arrow with length 1 in the
positive x direction and length 2 in the positive y direction starting
at the point (3,4), which is just a feather plot or quiver plot. But I
do not know how to do that in IDL. I tried the VEL, and VELOVECT
commands, but to be honest, I do not get the point of these commands.
I really do not understand why the parameters in these commands have
to be 2-D arrays. And I really hope someone could save me here.
Thanks in advance.

-Tongmu

Report message to a moderator

[Message index]

How to draw a 2-D arrow [1,2] at point [3,4]?

By: litongmu on Mon, 27 April 2009 17:39

Previous Topic:	Re: wavenum, frequency FFT plot
Next Topic:	Re: How to draw a 2-D arrow [1,2] at point [3,4]?

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 16:12:01 PDT 2025

Total time taken to generate the page: 0.00417 seconds