[PyMOL] draw sticks between given coordinates

[Daniele N. <dan...@gm...>]

Hello!

I am trying to draw sticks given a set of coordinates and sometimes I
succeed, sometimes I do not. In my silly mind, what I would like to do is
to give two set of 3D coordinates and have a stick drawn between them. For
example, given the set of coordinates

0.0 0.0 0.0            # coord 1 start
1.0 0.0 0.0            # coord 1 end
0.0 0.0 0.0            # coord 2 start
0.0 1.0 0.0            # coord 2 end
1.0 0.0 0.0            # coord 3 start
0.0 1.0 0.0            # coord 3 end

I would like to obtain a triangle. This actually happens. However, if I
replace all the 1.0 with 2.0, I only get the two short sides of the
triangle and if I replace the 1.0 with 3.0 I get nothing.

I deduce that there is a certain distance below which a stick is drawn (?).
I do not see how to make this criterion work for my problem, given that
there could be coordinates that are very close but do not need to be
connected and coordinates that are very far and that do need to be
connected.

So my question is: how to draw sticks between points, given the "head" and
the "tail" coordinates of each stick I want to draw?

Thank you in advance.

PS: sorry if the question is silly, I have looked around and found
nothing...