CGAL 5.4.4  3D Envelopes

#include <CGAL/Env_surface_data_traits_3.h>
Traits.
The class Env_surface_data_traits_3
is a model of the EnvelopeTraits_3
concept and serves as a decorator class that allows the extension of the surfaces defined by the base traitsclass (the Traits
parameter), which serves as a geometric traitsclass (a model of the EnvelopeTraits_3
concept), with extraneous (nongeometric) data fields.
The traitsclass decorator extends the Surface_3
and the Xy_monotone_surface_3
types as detailed below. Each Surface_3
object is associated with a single data field of type SData
, and each Xy_monotone_surface_3
object is associated with a single data field of type XyData
. When a surface is subdivided into \( xy\)monotone surfaces, its data field is converted using the conversion functor, which is specified by the Cnv
templateparameter, and the resulting objects is copied to all Xy_monotone_surface_3
objects induced by this surface. The conversion functor should provide an operator with the following prototype:
XyData operator() (const SData& d) const;
By default, the two data types are the same, so the conversion operator is trivial and just copies the data object:
SData =  XyData 
Cnv =  _Default_convert_functor<SData,XyData> 
Classes  
class  Surface_3 
The Surface_3 class nested within the surfacedata traits extends the Base_traits_3::Surface_3 type with an extra data field. More...  
class  Xy_monotone_surface_3 
The Xy_monotone_surface_3 class nested within the surfacedata traits extends the Base_traits_3::Xy_monotone_surface_3 type with an extra data field. More...  
Types  
typedef Traits  Base_traits_3 
the base traitsclass.  
typedef Base_traits_3::Surface_3  Base_surface_3 
the base surface.  
typedef Base_traits_3::Xy_monotone_surface_3  Base_xy_monotone_surface_3 
the base \( xy\)monotone surface surface.  
typedef Cnv  Convert 
the conversion functor.  
typedef SData  Surface_data 
the type of data associated with surfaces.  
typedef XyData  Xy_monotone_surface_data 
the type of data associated with \( xy\)monotone surfaces.  