how to draw velocity with direction in paraView?

immortality · January 5, 2013, 12:55

hi all
in my case velocity is directed through positive or negative x-axis .then I want to draw the velocity with its sign.how can i have a figure of velocity over time at a certain point with its true direction not only its magnitude.is it possible with paraView or the data should extract and plot separately?
thanks a lot.

gschaider · January 5, 2013, 19:34

Quote:

Originally Posted by immortality

hi all
in my case velocity is directed through positive or negative x-axis .then I want to draw the velocity with its sign.how can i have a figure of velocity over time at a certain point with its true direction not only its magnitude.is it possible with paraView or the data should extract and plot separately?
thanks a lot.

Have a look at the icon-bar in PV: just to the left of the drop-down with which you selected "U" there is a dropdown that says "Magnitude". The other options in this dropdown are "X", "Y" and "Z" ... guess what that means

immortality · January 6, 2013, 03:32

thank you very much dear bernard.i'll test it.

immortality · January 7, 2013, 12:11

it works when showing x-velocity distribution.but when I want to draw the time trace at a given poit it draws U(Magnitude)only not x-velocity magnitude.

gschaider · January 7, 2013, 15:38

Quote:

Originally Posted by immortality

it works when showing x-velocity distribution.but when I want to draw the time trace at a given poit it draws U(Magnitude)only not x-velocity magnitude.

Don't use that time-trace. Usually (for line-plots) there are 4 Options: magnitude and the components. Manitude is selected. The other 3 are not.

immortality · January 7, 2013, 16:26

thanks.i drew that.after select the point and plot over time,U0 should be selected.thanks for the clue.

January 5, 2013, 12:55	how to draw velocity with direction in paraView?	#1
immortality Senior Member Ehsan Join Date: Oct 2012 Location: Iran Posts: 2,208 Rep Power: 27	hi all in my case velocity is directed through positive or negative x-axis .then I want to draw the velocity with its sign.how can i have a figure of velocity over time at a certain point with its true direction not only its magnitude.is it possible with paraView or the data should extract and plot separately? thanks a lot.

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January 6, 2013, 03:32		#3
immortality Senior Member Ehsan Join Date: Oct 2012 Location: Iran Posts: 2,208 Rep Power: 27	thank you very much dear bernard.i'll test it.

January 7, 2013, 12:11		#4
immortality Senior Member Ehsan Join Date: Oct 2012 Location: Iran Posts: 2,208 Rep Power: 27	it works when showing x-velocity distribution.but when I want to draw the time trace at a given poit it draws U(Magnitude)only not x-velocity magnitude.

January 7, 2013, 16:26		#6
immortality Senior Member Ehsan Join Date: Oct 2012 Location: Iran Posts: 2,208 Rep Power: 27	thanks.i drew that.after select the point and plot over time,U0 should be selected.thanks for the clue.