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This function is used in the template function
create_new(). It setson_free_storetotrue. See Point Reference; Data Members, and Point Reference; Constructors and Setting Functions.
Sets all of the coordinates in all of the sets of coordinates (i.e.,
world_coordinates,user_coordinates,view_coordinates, andprojective_coordinates) to 0 and resetstransform
Calls
apply_transform()and sets the values ofworld_coordinatesto 0, whose absolute values are less thanepsilon()* factor .
Sets
Transformto the identityTransform. Performed inapply_transform(), after the latter updatesworld_coordinates. Point Reference; Applying Transformations.