Recipe: Hold Segment in Space

created by marsfan

Profile

• Name: Hold Segment in Space
• ID: 103597
• Shared with: Public
• Parent: None
• Children: None
• Created on: June 15, 2020 at 05:15 AM UTC
• Updated on: June 15, 2020 at 05:15 AM UTC
• Description:

  Locks selected segments in space

  How it works: ; For each selected segment add bands in each cardinal direction (Up, Down, Left, Right, Front, Back) of the segment, set their strength to 10, and sets the target length to the current length.

Code

function setBandParameters(idx)
    if (idx==0) then
        error("Band could not be created")
    else
        band.SetStrength(idx, 10)
        band.SetGoalLength(idx, band.GetLength(idx))
    end
end


length = 2
for i=1,structure.GetCount() do
    if selection.IsSelected(i) then
        if i==1 then
            xAxis = i+2
        else
            xAxis = i-1
        end
        if i==structure.GetCount() then
            yAxis = i-2
        else
            yAxis = i+1
        end
        idx = band.Add(i, xAxis, yAxis, length, 0, 0)
        setBandParameters(idx)
        idx = band.Add(i, xAxis, yAxis, length, math.pi / 2, 0)
        setBandParameters(idx)
        idx = band.Add(i, xAxis, yAxis, length, math.pi, 0)
        setBandParameters(idx)
        idx = band.Add(i, xAxis, yAxis, length, math.pi/2, math.pi/2)
        setBandParameters(idx)
        idx = band.Add(i, xAxis, yAxis, length, math.pi/2, math.pi)
        setBandParameters(idx)
        idx = band.Add(i, xAxis, yAxis, length, math.pi/2, 3 * math.pi / 2)
        setBandParameters(idx)

    end
end

Comments

[Bruno Kestemont]

This recipe existed a time ago ("band to native" or something like that) but I was unable to find it back.

It's useful for the electron density puzzles !