[Plplot-general] Clearing previous points from a plot

[Kyle B. <kw...@ua...>]

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Hi all,

I've just started looking into using plplot for part of a simulation
I'm writing.  I'm trying to (for now) make a 3D scatter plot that is
updated in ~real time.  I'm using c++ as the programing language and
what I've managed to do so far is:

1. Instantiate an object of the plstream class
2. Select the xwin driver using plsdev
3. call init(), env(), w3d(), box3() to setup the window
4. create 3 doubles, x y and z
5. inside a for loop, ( alter x y z and call poin3() ) to update the
plot.

This has worked well so far, but I'm having trouble finding a way to
remove the previously plotted points.  I would like to be able to just
see one point, then on the redraw, see it move to another location.
What I see now is one point, then two, then three, ect....

Can someone offer some advice on how to accomplish this?  Also, if I'm
using the wrong tool, or if I'm using an incorrect method of the
plstream class I'd love to be corrected!

Thanks,

Kyle Bentley

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