Recipe: Freeze Backbone

created by marsfan

Profile

• Name: Freeze Backbone
• ID: 103596
• Shared with: Public
• Parent: Freeze Secondary Structures
• Children: None
• Created on: June 15, 2020 at 05:13 AM UTC
• Updated on: June 15, 2020 at 05:13 AM UTC
• Description:

  Freeze all backbone segments, leaving sidechains unfrozen.

  Does so very rapidly by selecting all element to freeze, then freezing selection. it will remember what the selection was before running and restore it afterwards.

Code

-- I have found it faster to select elements to freeze and freeze by selection than it is to 
-- loop through all elements and freeze one by one. 


preSelected = {}



for i=1, structure.GetCount() do
    -- Keep track of what is already selected, so we can revert selection later
    if selection.IsSelected(i) then
        preSelected[#preSelected+1] = i
        selection.Deselect(i)
    end

    
end


-- Select the entire protein

selection.SelectAll()


freeze.FreezeSelected(true, false)
selection.DeselectAll()
for i=1, #preSelected do
    selection.Select(preSelected[i])
end