<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">Hi,</div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">I'm making a plot in which I plot a bunch of velocity vectors that show the deviation of the material from it's average velocity. I use quiverkey to show the size scale of the vectors, but I'd also like to show the mean velocity vector on the plot.</div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">So, what I need is the meaning of the scale value. I'm using units='dots' and have set the scale value by trial and error to 0.75 to get a good looking plot. Given these, can someone tell me how to translate some value from a magnitude for a vector to a length on my plot? I've looked at the code for quiver and quiverkey and it's a bit opaque to me, at least without spending significant time studying it.</div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">Regards,</div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">Jon</div><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr">________________________________________________________<br>Jonathan D. Slavin Harvard-Smithsonian CfA<br><a href="mailto:jslavin@cfa.harvard.edu" target="_blank">jslavin@cfa.harvard.edu</a> 60 Garden Street, MS 83<br>phone: (617) 496-7981 Cambridge, MA 02138-1516<br>cell: (781) 363-0035 USA<br>________________________________________________________<br><br></div></div></div></div>
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