00001 // This is gel/gst/gst_edge_2d.h 00002 #ifndef gst_edge_2d_h_ 00003 #define gst_edge_2d_h_ 00004 #ifdef VCL_NEEDS_PRAGMA_INTERFACE 00005 #pragma interface 00006 #endif 00007 //: 00008 // \file 00009 // \author crossge@crd.ge.com 00010 00011 #include <vcl_iosfwd.h> 00012 #include <vbl/vbl_ref_count.h> 00013 00014 #include "gst_vertex_2d_sptr.h" 00015 00016 class gst_edge_2d : public vbl_ref_count 00017 { 00018 public: 00019 // constructor 00020 gst_edge_2d(gst_vertex_2d_sptr start, gst_vertex_2d_sptr end) 00021 : start_(start), end_(end) {} 00022 00023 // copy constructor - compiler-provided one sets ref_count to nonzero which is wrong -PVr 00024 gst_edge_2d(gst_edge_2d const& e) 00025 : vbl_ref_count(), start_(e.start_), end_(e.end_) {} 00026 00027 // getters (no setters) 00028 00029 gst_vertex_2d_sptr get_start() const { return start_; } 00030 gst_vertex_2d_sptr get_end() const { return end_; } 00031 00032 // operations 00033 void flip() { gst_vertex_2d_sptr temp= start_; start_= end_; end_= temp; } 00034 00035 // display 00036 friend vcl_ostream &operator<<( vcl_ostream &os, gst_edge_2d &e); 00037 00038 protected: 00039 gst_vertex_2d_sptr start_; 00040 gst_vertex_2d_sptr end_; 00041 }; 00042 00043 vcl_ostream &operator<<( vcl_ostream &os, gst_edge_2d &e); 00044 00045 #endif // gst_edge_2d_h_
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