Module: TT::Definition

Defined in:
TT_Lib2/definition.rb

Overview

Collection of Face methods.

Since:

  • 2.0.0

Class Method Summary collapse

Class Method Details

.set_origin(definition, origin) ⇒ Boolean

Sets the origin of the ComponentDefinition to a given 3d point.

Parameters:

  • definition (Sketchup::ComponentDefinition)
  • origin (Geom::Point3d)

Returns:

  • (Boolean)

Since:

  • 2.0.0



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# File 'TT_Lib2/definition.rb', line 22

def self.set_origin(definition, origin)
  return false if definition.image?
  # Set the origin - move the entities and counter-adjust the instances.
  t = Geom::Transformation.new( origin )
  definition.entities.transform_entities( t.inverse, definition.entities.to_a )
  definition.instances.each { |i|
    i.transformation = i.transformation * t
  }
  return true
end

.set_origin_by_bounds(definition, origin) ⇒ Boolean

Sets the origin of the ComponentDefinition to a given point on its bounds.

origin can be an integer of the following values:

BB_LEFT_FRONT_BOTTOM  = 0
BB_RIGHT_FRONT_BOTTOM = 1
BB_LEFT_BACK_BOTTOM   = 2
BB_RIGHT_BACK_BOTTOM  = 3
BB_LEFT_FRONT_TOP     = 4
BB_RIGHT_FRONT_TOP    = 5
BB_LEFT_BACK_TOP      = 6
BB_RIGHT_BACK_TOP     = 7
BB_BOTTOM_CENTER      = 8
BB_TOP_CENTER         = 9
BB_LEFT_CENTER        = 10
BB_RIGHT_CENTER       = 11
BB_FRONT_CENTER       = 12
BB_BACK_CENTER        = 13
BB_CENTER             = 14

All these constants are defined under TT.

Parameters:

  • definition (Sketchup::ComponentDefinition)
  • origin (Integer)

Returns:

  • (Boolean)

Since:

  • 2.0.0



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# File 'TT_Lib2/definition.rb', line 61

def self.set_origin_by_bounds(definition, origin)
  return false if definition.image?
  
  bb = definition.bounds
  
  # Compute the origin
  if origin.is_a?(Numeric)
    case origin
    when (0..7)
      new_origin = bb.corner(origin)
    when BB_CENTER
      new_origin = bb.center
    when BB_BOTTOM_CENTER
      p1 = bb.corner(BB_LEFT_FRONT_BOTTOM)
      p2 = bb.corner(BB_RIGHT_BACK_BOTTOM)
      new_origin = Geom::Point3d.linear_combination(0.5, p1, 0.5, p2)
    when BB_TOP_CENTER
      p1 = bb.corner(BB_LEFT_FRONT_TOP)
      p2 = bb.corner(BB_RIGHT_BACK_TOP)
      new_origin = Geom::Point3d.linear_combination(0.5, p1, 0.5, p2)
    when BB_LEFT_CENTER
      p1 = bb.corner(BB_LEFT_FRONT_BOTTOM)
      p2 = bb.corner(BB_LEFT_BACK_TOP)
      new_origin = Geom::Point3d.linear_combination(0.5, p1, 0.5, p2)
    when BB_RIGHT_CENTER
      p1 = bb.corner(BB_RIGHT_FRONT_BOTTOM)
      p2 = bb.corner(BB_RIGHT_BACK_TOP)
      new_origin = Geom::Point3d.linear_combination(0.5, p1, 0.5, p2)
    when BB_FRONT_CENTER
      p1 = bb.corner(BB_LEFT_FRONT_BOTTOM)
      p2 = bb.corner(BB_RIGHT_FRONT_TOP)
      new_origin = Geom::Point3d.linear_combination(0.5, p1, 0.5, p2)
    when BB_BACK_CENTER
      p1 = bb.corner(BB_LEFT_BACK_BOTTOM)
      p2 = bb.corner(BB_RIGHT_BACK_TOP)
      new_origin = Geom::Point3d.linear_combination(0.5, p1, 0.5, p2)
    else
      raise ArgumentError
    end
  elsif origin.is_a?(Geom::Point3d) || (origin.is_a?(Array) && origin.size = 3)
    new_origin = origin
  else
    raise ArgumentError
  end
  
  self.set_origin(definition, bb.center)
end