Panda3D
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eggMesherFanMaker.I
00001 // Filename: eggMesherFanMaker.I
00002 // Created by:  drose (22Mar05)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 
00016 ////////////////////////////////////////////////////////////////////
00017 //     Function: EggMesherFanMaker::operator <
00018 //       Access: Public
00019 //  Description: Provides a unique ordering between different fan
00020 //               makers based on the leading edge.
00021 ////////////////////////////////////////////////////////////////////
00022 INLINE bool EggMesherFanMaker::
00023 operator < (const EggMesherFanMaker &other) const {
00024   nassertr(!_edges.empty() && !other._edges.empty(), false);
00025   return _edges.front() < other._edges.front();
00026 }
00027 
00028 ////////////////////////////////////////////////////////////////////
00029 //     Function: EggMesherFanMaker::operator !=
00030 //       Access: Public
00031 //  Description: Provides a unique ordering between different fan
00032 //               makers based on the leading edge.
00033 ////////////////////////////////////////////////////////////////////
00034 INLINE bool EggMesherFanMaker::
00035 operator != (const EggMesherFanMaker &other) const {
00036   return !operator == (other);
00037 }
00038 
00039 ////////////////////////////////////////////////////////////////////
00040 //     Function: EggMesherFanMaker::operator ==
00041 //       Access: Public
00042 //  Description: Provides a unique ordering between different fan
00043 //               makers based on the leading edge.
00044 ////////////////////////////////////////////////////////////////////
00045 INLINE bool EggMesherFanMaker::
00046 operator == (const EggMesherFanMaker &other) const {
00047   return _edges.front() == other._edges.front();
00048 }
00049 
00050 ////////////////////////////////////////////////////////////////////
00051 //     Function: EggMesherFanMaker::is_empty
00052 //       Access: Public
00053 //  Description: Returns true if the fan maker has no edges, false
00054 //               otherwise.
00055 ////////////////////////////////////////////////////////////////////
00056 INLINE bool EggMesherFanMaker::
00057 is_empty() const {
00058   return (_edges.empty());
00059 }
00060 
00061 ////////////////////////////////////////////////////////////////////
00062 //     Function: EggMesherFanMaker::is_valid
00063 //       Access: Public
00064 //  Description: Returns true if the fan maker has enough edges to
00065 //               define at least one fan, false otherwise.
00066 ////////////////////////////////////////////////////////////////////
00067 INLINE bool EggMesherFanMaker::
00068 is_valid() const {
00069   return (_edges.size() > 2);
00070 }
00071 
00072 ////////////////////////////////////////////////////////////////////
00073 //     Function: EggMesherFanMaker::is_coplanar_with
00074 //       Access: Public
00075 //  Description: Returns true if the strip and the other strip are
00076 //               coplanar.
00077 ////////////////////////////////////////////////////////////////////
00078 INLINE bool EggMesherFanMaker::
00079 is_coplanar_with(const EggMesherFanMaker &other) const {
00080   return _planar && other._planar &&
00081     _strips.front()->is_coplanar_with(*other._strips.front(),
00082                                       egg_coplanar_threshold);
00083 }
00084 
00085 INLINE ostream &
00086 operator << (ostream &out, const EggMesherFanMaker &fm) {
00087   fm.output(out);
00088   return out;
00089 }
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