Comments on: Electron and positron

By: hagen

hagen — Wed, 13 Jun 2012 08:05:44 +0000

Thanks for your comments, I have changed the text and the code accordingly in order to fix this.

By: Jose

Jose — Tue, 12 Jun 2012 17:31:57 +0000

Sorry for a new comment. When creating successive electrons, positrons, or so on, the last of the circles is ‘overwritten’ by the next object. This is difficult to notice if the ‘max’ variable is high enough as in the examples, but if it is low enough you can see the loose of one circle per object. To avoid this, the ending of ‘electron.gnu’ and ‘positron.gnu’ could be rewritten as:

# Set new object and label number
object_number = object_number+max
label_number = label_number+1

In addition, with this change, if you need to clear all this objects but not others, you can write:
gnuplot> unset for [n=object_number-1:1:-1] object n
gnuplot> unset for [n=label_number-1:1:-1] label n
gnuplot> object_number=1; label_number=1

And replot conveniently. Thanks!

By: Jose

Jose — Tue, 12 Jun 2012 16:06:53 +0000

Thank you very much for this article, it has been very useful for me. Nevertheless, using Gnuplot 4.6 over AquaTerm, the border of the circles appeared, so that I had to add the ‘noborder’ modifier which specifies that no bounding lines are drawn:

set for [n=0:max-1] object n+object_number circle \
at posx(x,n,max/1.0),posy(y,n,max/1.0) size size(n,max/1.0)
set for [n=0:max-1] object n+object_number \
fc rgb star(n,max/1.0) fillstyle solid noborder lw 0