contrib/gel/vtol/vtol_face_2d.h File Reference

Represents the basic 2D topological entity with 2d geometry (region) More...

#include <vcl_iosfwd.h>
#include <vsol/vsol_region_2d_sptr.h>
#include <vtol/vtol_face.h>

Classes
class	vtol_face_2d

Detailed Description

Represents the basic 2D topological entity with 2d geometry (region)

The vtol_face_2d class is used to represent a topological face. A vtol_face_2d maintains a pointer to the region which describes the mathematical geometry of the face. The connectivity between faces may be obtained from the superior 2-chains of the face. The boundary of the face may be obtained from the inferior 1-chains of the face.

    Modifications:
     JLM Dec 1995: Added timeStamp (Touch) to
         operations which affect bounds.
     JLM Dec 1995: Added method for ComputeBoundingBox
         (Need to decide proper policy for curved surfaces
         and possibly inconsistent planar surface geometry)
     JSL Computed Area()
     JLM Sep 1996: Fixed the face copy constructor which
         did not handle the construction of new vtol_edge_2d(s) properly.
         The old implementation always constructed ImplicitLine(s)
         for the curve of each new edge.  See vtol_edge_2d.h for the required
         alterations of the vtol_edge_2d constructors.  There is still an
         issue with proper copying of the vtol_face_2d's Surface.  It isn't
         done correctly.
     PVR Aug 97: is_within_projection() implementation restored.
     AWF Jul 1998: General topology speedup by replacing calls to
         vertices() et al with iterators.  Benchmark: constructing
         40K triangles, old: 37 sec, new: 9 sec.
     PTU may-2000 ported to vxl
     Dec. 2002, Peter Vanroose -interface change: vtol objects -> smart pointers
     9 Jan. 2003, Peter Vanroose - added "copy_geometry()"

Definition in file vtol_face_2d.h.

Classes

Detailed Description