Re: [Jmol-users] color temperature on an absolute scale

[Miguel <mi...@jm...>]

Jaim wrote:
>> In every case, we will map the temperatureRange to the 33 colors of the
>> red -> white -> blue scale.
>
> Will it be possible to request colors for these 3 points?
> Something like temperatureColor [green,white,blue]

My first reaction was "No".

Then I gave it a little more thought and decided that the answer is "Maybe".

Q: If I do it, will you really *use* it?

Q: Other people: will anybody else use it?

Q: If I do it for 'temperature', are we going to want it for other things
too (like charge) ?


>> If values fall outside the current temperatureRange limits we can
>> either:
>> 1. map them to the extreme values of the range (easy)
>> 2. map them to some other color outside the range (not quite as easy).
>
> There's a third option: just ignore coloring the out-of-scale point.

This is not an option. At the point at which we are applying the color it
is too late.

> By requesting a non standard temperatureRange we can filter
> the display based on temperature values.

The proper way to handle this is by using atom expressions to restrict
your set. You can do this by saying:

  select temperature > 50; color temperature

-- 2 minutes later --

I just checked this and there is a bug. Internally I scale all bfactors by
100. So, in order for this to work you have to say 'select temperature >
5000'. It is a trivial fix and will be in the next release.


Miguel