Thank you, Paul.
I understand now that if I want positive and negative densities at
different levels, I will need to load the PHFOFCWT map twice, with
checked and unchecked "is difference map?" and have negative density at
3sigma (with checked diff.map) and positive density at 1 sigma (with
unchecked diff.map).
Maia
Paul Emsley wrote:
chern wrote:
Hi all,
Is it possible to separately adjust the levels of positive and
negative electron density?
No (and yes).
When I try to build a fragment with a poor density I want to decrease
the level of positive density from 3 sigma to 2 or even 1 sigma to
see more positive density, but then the whole map becomes red with
negative density.
That is supposed to indicate something to you.
Can I shut off the negative density at all, leaving only the positive
density in the PHFOFCWT maps?
Yes - sort of. When you read in the mtz file, uncheck the "is
difference map?" check box, then you will not get a negative level.
You will have to colour the new map "by hand" though.
( I would like also to color them separately). It is possible to do
so in xtalview.
As above - if you want scroll negative levels then you will need to do
something like:
(set-stop-scroll-diff-map-level -5)
Paul.
