csgeom/path.h
Go to the documentation of this file.00001 /* 00002 Copyright (C) 2001 by Jorrit Tyberghein 00003 00004 This library is free software; you can redistribute it and/or 00005 modify it under the terms of the GNU Library General Public 00006 License as published by the Free Software Foundation; either 00007 version 2 of the License, or (at your option) any later version. 00008 00009 This library is distributed in the hope that it will be useful, 00010 but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 Library General Public License for more details. 00013 00014 You should have received a copy of the GNU Library General Public 00015 License along with this library; if not, write to the Free 00016 Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00017 */ 00018 00019 #ifndef __CS_PATH_H__ 00020 #define __CS_PATH_H__ 00021 00022 00030 #include "csextern.h" 00031 00032 #include "csgeom/spline.h" 00033 #include "csgeom/vector3.h" 00034 #include "csutil/scf_implementation.h" 00035 00036 #include "igeom/path.h" 00037 00044 class CS_CRYSTALSPACE_EXPORT csPath : 00045 public scfImplementation1<csPath, iPath> 00046 { 00047 protected: 00048 csCatmullRomSpline spline; 00049 00050 private: 00051 void SetVectorAsDimensionValues (int dim, csVector3* v) 00052 { 00053 int i; 00054 int N = spline.GetPointCount(); 00055 float* x, * y, * z; 00056 x = new float [N]; 00057 y = new float [N]; 00058 z = new float [N]; 00059 for (i = 0 ; i < N ; i++) 00060 { 00061 x[i] = v[i].x; 00062 y[i] = v[i].y; 00063 z[i] = v[i].z; 00064 } 00065 spline.SetDimensionValues (dim+0, x); 00066 spline.SetDimensionValues (dim+1, y); 00067 spline.SetDimensionValues (dim+2, z); 00068 delete[] x; 00069 delete[] y; 00070 delete[] z; 00071 } 00072 00073 public: 00074 00076 csPath (int p) : scfImplementationType(this), spline (9, p) 00077 { } 00078 00080 virtual ~csPath () 00081 { } 00082 00084 virtual int Length () 00085 { 00086 return spline.GetPointCount(); 00087 } 00092 int GetPointCount() 00093 { 00094 return Length(); 00095 } 00097 virtual void CalculateAtTime (float time) 00098 { 00099 spline.Calculate (time); 00100 } 00105 virtual void Calculate (float time) 00106 { 00107 CalculateAtTime(time); 00108 } 00110 virtual int GetCurrentIndex () 00111 { 00112 return spline.GetCurrentIndex(); 00113 } 00115 virtual float GetTime (int idx) 00116 { 00117 return spline.GetTimeValue(idx); 00118 } 00123 float GetTimeValue (int idx) const 00124 { 00125 return spline.GetTimeValue(idx); 00126 } 00128 virtual void SetTime (int idx, float t) 00129 { 00130 spline.SetTimeValue(idx,t); 00131 } 00136 virtual void SetTimeValue (int idx, float t) 00137 { 00138 SetTime(idx, t); 00139 } 00146 void SetTimes (float const* t) 00147 { 00148 spline.SetTimeValues(t); 00149 } 00154 void SetTimeValues (float const* t) 00155 { 00156 SetTimes(t); 00157 } 00159 float const* GetTimes () const 00160 { 00161 return spline.GetTimeValues(); 00162 } 00167 float const* GetTimeValues () const 00168 { 00169 return GetTimes(); 00170 } 00172 virtual void SetPositionVectors (csVector3* v) 00173 { 00174 SetVectorAsDimensionValues (0, v); 00175 } 00177 virtual void SetUpVectors (csVector3* v) 00178 { 00179 SetVectorAsDimensionValues (3, v); 00180 } 00182 virtual void SetForwardVectors (csVector3* v) 00183 { 00184 SetVectorAsDimensionValues (6, v); 00185 } 00187 virtual void SetPositionVector (int idx, const csVector3& v) 00188 { 00189 spline.SetDimensionValue (0, idx, v.x); 00190 spline.SetDimensionValue (1, idx, v.y); 00191 spline.SetDimensionValue (2, idx, v.z); 00192 } 00194 virtual void SetUpVector (int idx, const csVector3& v) 00195 { 00196 spline.SetDimensionValue (3, idx, v.x); 00197 spline.SetDimensionValue (4, idx, v.y); 00198 spline.SetDimensionValue (5, idx, v.z); 00199 } 00201 virtual void SetForwardVector (int idx, const csVector3& v) 00202 { 00203 spline.SetDimensionValue (6, idx, v.x); 00204 spline.SetDimensionValue (7, idx, v.y); 00205 spline.SetDimensionValue (8, idx, v.z); 00206 } 00208 virtual void GetPositionVector (int idx, csVector3& v) 00209 { 00210 v.x = spline.GetDimensionValue (0, idx); 00211 v.y = spline.GetDimensionValue (1, idx); 00212 v.z = spline.GetDimensionValue (2, idx); 00213 } 00215 virtual void GetUpVector (int idx, csVector3& v) 00216 { 00217 v.x = spline.GetDimensionValue (3, idx); 00218 v.y = spline.GetDimensionValue (4, idx); 00219 v.z = spline.GetDimensionValue (5, idx); 00220 } 00222 virtual void GetForwardVector (int idx, csVector3& v) 00223 { 00224 v.x = spline.GetDimensionValue (6, idx); 00225 v.y = spline.GetDimensionValue (7, idx); 00226 v.z = spline.GetDimensionValue (8, idx); 00227 } 00228 00230 virtual void GetInterpolatedPosition (csVector3& pos) 00231 { 00232 pos.x = spline.GetInterpolatedDimension (0); 00233 pos.y = spline.GetInterpolatedDimension (1); 00234 pos.z = spline.GetInterpolatedDimension (2); 00235 } 00237 virtual void GetInterpolatedUp (csVector3& pos) 00238 { 00239 pos.x = spline.GetInterpolatedDimension (3); 00240 pos.y = spline.GetInterpolatedDimension (4); 00241 pos.z = spline.GetInterpolatedDimension (5); 00242 } 00244 virtual void GetInterpolatedForward (csVector3& pos) 00245 { 00246 pos.x = spline.GetInterpolatedDimension (6); 00247 pos.y = spline.GetInterpolatedDimension (7); 00248 pos.z = spline.GetInterpolatedDimension (8); 00249 } 00251 float const* GetDimensionValues (int dim) const 00252 { 00253 return spline.GetDimensionValues(dim); 00254 } 00256 float GetDimensionValue (int dim, int idx) const 00257 { 00258 return spline.GetDimensionValue(dim, idx); 00259 } 00264 void InsertPoint (int idx) 00265 { 00266 spline.InsertPoint(idx); 00267 } 00269 void RemovePoint (int idx) 00270 { 00271 spline.RemovePoint(idx); 00272 } 00273 }; 00274 00277 #endif // __CS_PATH_H__
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