Re: [Jmol-developers] draw line or vector

[Jaime P. <Jai...@we...>]

According to Miguel:
> Q: What mechanism do you want to use to declare the start and end points
> of a line?

You may apply the 'set' Rasmol command to a 'line' object:

  set line color <colour>   
  set line weight <value>
  set line type [ arrow | plain ] 
  set line x1 y1 z1 x2 y2 z2 

The last one sets the line position in the space and draws it.
The arrow point, if line type arrow selected, is to be drawn at the
x2,y2,z2 point.

Or adapt the current gnuplot syntaxt

(to draw an arrow)     set arrow from x1,y1,z1 to x2,y2,z2
(to draw a plain line) set arrow from x1,y1,z1 to x2,y2,z2 nohead

set arrow {<tag>} {from <position>} {to <position>} {{no}head}
                { {linestyle | ls <line_style>}
                  | {linetype | lt <line_type>}
                    {linewidth | lw <line_width} }

> Q: What is the relationship between line/vector and model? That is, when
> you declare a line, is it in a single model?

Better take a look to the under development page at
http://bioportal.weizmann.ac.il/dipol-bin/dipol2j.cgi?pdb_id=2ace

I would rather draw the Dipole and Mass moments vectors with arrows.

Jaim
-- 
 Dr Jaime Prilusky                      | Jai...@we...
 Head of Bioinformatics ISPC            |
 R&D Bioinformatics and Data Management |
 Weizmann Institute of Science          | fax: 972-8-9344113
 76100 Rehovot - Israel                 | tel: 972-8-9344959

 info URL http://bip.weizmann.ac.il/staff/jaime_prilusky.html
 OCA is at http://bip.weizmann.ac.il/oca/