Area

     # File lib/constraints.rb, line 82
 82:         def initialize(points, color_name=Constants::COLOR_AREA)

 83:                 mesh = Geom::PolygonMesh.new

 84:                 

 85:                 mesh.add_polygon points

 86:                 

 87:                 entities = Sketchup.active_model.entities

 88:                 

 89:                 materials = Sketchup.active_model.materials

 90:                 materials.add "area_material"

 91:                 material = materials[materials.length-1]

 92:                 material.color = color_name

 93:                 material.alpha = Constants::ALPHA

 94:                 @group = entities.add_group

 95:                 @group.entities.add_faces_from_mesh(mesh, 0, material, material)

 96:                 @group.locked = true

 97:                 

 98:                 # The face is the last entity added

 99:                 # Trick to circumvent a SU error (add_faces_from_mesh returns 0 instead of the added faces)

100:                 size_entities = @group.entities.length        

101:                 @face = @group.entities[size_entities-1]

102:         end

     # File lib/constraints.rb, line 107
107:         def cover_point?(point)

108:                 result = false

109:                 if (@face.classify_point point) <= Sketchup::Face::PointOnEdge

110:                         result = true

111:                 end

112:                 return result

113:         end

     # File lib/constraints.rb, line 116
116:         def erase()

117:                 entities = Sketchup.active_model.entities

118:                 @group.locked = false

119:                 entities.erase_entities @group

120:         end