Geoff wrote:
> Recent postings have considered 'monitor' and possible alternatives to
> display measurements, bond and torsion angles etc
>
> e.g. Miguel said
>>It seems that many people want to use 'monitor' to create artificial
>> bonds. The combination of 'monitor 1 2' and 'set monitor off'.
>
>>This is incompatible with the Jmol design. For example, measurements
>> are drawn 'above' the atoms so that they will remain visible, even if
>> the atoms are at 100% spacefill.
>
>>Therefore, I am probably going to implement a new command in Jmol
>> called 'measure'. Then 'monitor' can do whatever is necessary for
>> RasMol/Chime compatibility, and 'measure' can be used for measurements.
>
> It would be good if some version of 'set picking' could also be
> implemented with 'monitor' (or it's alternative) as this allows for
> interactive measurements of bond lengths, angles torsions etc. This
> assumes it's not already in Jmol and I've missed it!
Here is the story regarding 'measurements' in Jmol:
* the Jmol application has had 'measurements' for some time
* distance, angle, and torsion angle have all been available
* there was a terminology problem because 'torsion' was
incorrectly identified as 'dihedral' .. a crystallographer
pointed out the terminology 'bug' a few months ago
* both the Jmol app and the JmolApplet have supported
monitor 1 2
as well as
monitor 1 2 3
monitor 1 2 3 4
* the JmolApplet has not had an interactive way for an
end-user to make arbitrary measurements
* the biggest problem has been figuring out mouse gestures
and UI 'modes'
> The RasMol 2.7.2.1 Manual says
> -----------------------------------------------------------------------
> Measuring Distances, Angles and Torsions: Interactive measurement of
> distances, angles and torsions is achieved using the commands: 'set
> picking distance', 'set picking monitor', 'set picking angle' and 'set
> picking torsion', respectively.
[snip]
In my opinion ...
* This is too complicated
* There are too many modes and too much state involved
* RasMol was not developed as a GUI application. Rather,
it was developed as a command-line tool.
So ...
* I have been struggling for some time to come up with
appropriate mouse gestures for measurements
* it is difficult because almost all the mouse gestures
are already taken
* (and the poor Mac users only have one button :-)
* this weekend I went ahead and did some work on this
* the code has been checked in to CVS
* it will be released within a week or two in 10pre7
* we will have to wait and see whether or not people like it
:-)
Miguel
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