MRVertex.h

00001 /*
00002 File: MRVertex.h
00003 
00004 Function: 
00005 
00006 Author: Andrew Willmott, originally from code by Michael Garland,
00007 but a lot's changed since then =).
00008 
00009 Copyright: (c) 1997-2000, Andrew Willmott
00010 */
00011 
00012 #ifndef __MRVertex__
00013 #define __MRVertex__
00014 
00015 #include "gcl/Geometry.h"
00016 #include "gcl/Colour.h"
00017 #include "cl/Flags.h"
00018 #include "cl/NArray.h"
00019 
00020 class MRModel;
00021 class MRVertex;
00022 class MRCodes;
00023 
00024  struct FaceIdx
00025 {
00026  Int v[3];
00027 };
00028 
00029  typedef NArray<FaceIdx> FaceIdxArray;
00030  typedef NArray<MRVertex> MRVertexes;
00031  typedef NArray<MRCodes> MRCodesList;
00032  typedef NArray<UInt32> TreeCodes;
00033  typedef NArray<Flags8> MRFlagsList;
00034 
00035  enum MRV_Flags
00036 {
00037 MRV_Active = 0x0001, 
00038 MRV_Inside = 0x0002, 
00039 MRV_FaceActive = 0x0004, 
00040 MRV_End
00041 };
00042 
00043  class MRVertex
00044 {
00045 public:
00046 MRVertex();
00047 
00048  Bool IsLeaf() { return(child[0] < 0); }
00049  Bool IsRoot() { return(parent < 0); }
00050 
00051 Void SetContraction(
00052 MRVertexes &vertices,
00053 Int iv,
00054 MRFlagsList &flags,
00055 Int child0, 
00056 Int child1,
00057 Int face0,
00058 Int face1,
00059 GCLReal err
00060 );
00061 
00062 Bool CanContract(Int iv, MRFlagsList &flags);
00063 Bool CanExpand(Int iv, MRFlagsList &flags);
00064 
00065 Void Contract(Int iv, MRFlagsList &flags);
00066 Void Expand(Int iv, MRFlagsList &flags);
00067 
00068 Void PrintID();
00069 
00070 Void PullProps(MRVertexes &vertices);
00071 // pull face properties up the vertex tree.
00072 
00073 // fields
00074 
00075  Int parent; 
00076  Int child[2]; 
00077  Int face[2]; 
00078 
00079  Byte level; 
00080  Vector areaNormal; 
00081 };
00082 
00083  class MRCodes
00084 {
00085 public:
00086 MRCodes();
00087 
00088 Void AdjustVertices(MRVertexes &vertices, MRFlagsList &flags,
00089 Int faceIndexes[3], Int leafIndexes[3]);
00090 
00091 // set properties of face.
00092 
00093 // fields
00094  UInt32 treeCode[3];
00095 };
00096 
00097 
00122 Void MRSetupHierarchy(
00123 MRVertexes &vertices, 
00124 Int iv,
00125 TreeCodes &treeCodes,
00126 Int &height,
00127 Int level,
00128 Int treeCode
00129 );
00130 
00131 #endif
00132