GDAL
thinplatespline.h
1 /******************************************************************************
2  * $Id: thinplatespline.h 36411 2016-11-21 22:03:48Z rouault $
3  *
4  * Project: GDAL Warp API
5  * Purpose: Declarations for 2D Thin Plate Spline transformer.
6  * Author: VIZRT Development Team.
7  *
8  * This code was provided by Gilad Ronnen (gro at visrt dot com) with
9  * permission to reuse under the following license.
10  *
11  ******************************************************************************
12  * Copyright (c) 2004, VIZRT Inc.
13  *
14  * Permission is hereby granted, free of charge, to any person obtaining a
15  * copy of this software and associated documentation files (the "Software"),
16  * to deal in the Software without restriction, including without limitation
17  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
18  * and/or sell copies of the Software, and to permit persons to whom the
19  * Software is furnished to do so, subject to the following conditions:
20  *
21  * The above copyright notice and this permission notice shall be included
22  * in all copies or substantial portions of the Software.
23  *
24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
25  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
26  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
27  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
28  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
29  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
30  * DEALINGS IN THE SOFTWARE.
31  ****************************************************************************/
32 
33 #ifndef THINPLATESPLINE_H_INCLUDED
34 #define THINPLATESPLINE_H_INCLUDED
35 
36 #ifndef DOXYGEN_SKIP
37 
38 #include "gdal_alg.h"
39 #include "cpl_conv.h"
40 
41 typedef enum
42 {
43  VIZ_GEOREF_SPLINE_ZERO_POINTS,
44  VIZ_GEOREF_SPLINE_ONE_POINT,
45  VIZ_GEOREF_SPLINE_TWO_POINTS,
46  VIZ_GEOREF_SPLINE_ONE_DIMENSIONAL,
47  VIZ_GEOREF_SPLINE_FULL,
48 
49  VIZ_GEOREF_SPLINE_POINT_WAS_ADDED,
50  VIZ_GEOREF_SPLINE_POINT_WAS_DELETED
51 } vizGeorefInterType;
52 
53 //#define VIZ_GEOREF_SPLINE_MAX_POINTS 40
54 #define VIZGEOREF_MAX_VARS 2
55 
56 class VizGeorefSpline2D
57 {
58  bool grow_points();
59 
60  public:
61 
62  explicit VizGeorefSpline2D(int nof_vars = 1) :
63  type(VIZ_GEOREF_SPLINE_ZERO_POINTS),
64  _nof_vars(nof_vars),
65  _nof_points(0),
66  _max_nof_points(0),
67  _nof_eqs(0),
68 #if 0
69  _tx(0.0),
70  _ty(0.0),
71  _ta(10.0),
72 #endif
73  _dx(0.0),
74  _dy(0.0),
75  x(NULL),
76  y(NULL),
77  u(NULL),
78  unused(NULL),
79  index(NULL)
80  {
81  for( int i = 0; i < VIZGEOREF_MAX_VARS; i++ )
82  {
83  rhs[i] = NULL;
84  coef[i] = NULL;
85  }
86 
87  grow_points();
88  }
89 
90  ~VizGeorefSpline2D() {
91  CPLFree( x );
92  CPLFree( y );
93  CPLFree( u );
94  CPLFree( unused );
95  CPLFree( index );
96  for( int i = 0; i < _nof_vars; i++ )
97  {
98  CPLFree( rhs[i] );
99  CPLFree( coef[i] );
100  }
101  }
102 
103 #if 0
104  int get_nof_points(){
105  return _nof_points;
106  }
107 
108  void set_toler( double tx, double ty ){
109  _tx = tx;
110  _ty = ty;
111  }
112 
113  void get_toler( double& tx, double& ty) {
114  tx = _tx;
115  ty = _ty;
116  }
117 
118  vizGeorefInterType get_interpolation_type ( ){
119  return type;
120  }
121 
122  void dump_data_points()
123  {
124  for ( int i = 0; i < _nof_points; i++ )
125  {
126  fprintf(stderr, "X = %f Y = %f Vars = ", x[i], y[i]);
127  for ( int v = 0; v < _nof_vars; v++ )
128  fprintf(stderr, "%f ", rhs[v][i+3]);
129  fprintf(stderr, "\n");
130  }
131  }
132 
133  int delete_list()
134  {
135  _nof_points = 0;
136  type = VIZ_GEOREF_SPLINE_ZERO_POINTS;
137  if ( _AA )
138  {
139  CPLFree(_AA);
140  _AA = NULL;
141  }
142  if ( _Ainv )
143  {
144  CPLFree(_Ainv);
145  _Ainv = NULL;
146  }
147  return _nof_points;
148  }
149 #endif
150 
151  bool add_point( const double Px, const double Py, const double *Pvars );
152  int get_point( const double Px, const double Py, double *Pvars );
153 #if 0
154  int delete_point(const double Px, const double Py );
155  bool get_xy(int index, double& x, double& y);
156  bool change_point(int index, double x, double y, double* Pvars);
157  void reset(void) { _nof_points = 0; }
158 #endif
159  int solve(void);
160 
161  private:
162 
163  vizGeorefInterType type;
164 
165  const int _nof_vars;
166  int _nof_points;
167  int _max_nof_points;
168  int _nof_eqs;
169 
170 #if 0
171  // Disabled because the methods that use there is disabled.
172  double _tx, _ty;
173  double _ta;
174 #endif
175 
176  double _dx, _dy;
177 
178  double *x; // [VIZ_GEOREF_SPLINE_MAX_POINTS+3];
179  double *y; // [VIZ_GEOREF_SPLINE_MAX_POINTS+3];
180 
181 // double rhs[VIZ_GEOREF_SPLINE_MAX_POINTS+3][VIZGEOREF_MAX_VARS];
182 // double coef[VIZ_GEOREF_SPLINE_MAX_POINTS+3][VIZGEOREF_MAX_VARS];
183  double *rhs[VIZGEOREF_MAX_VARS];
184  double *coef[VIZGEOREF_MAX_VARS];
185 
186  double *u; // [VIZ_GEOREF_SPLINE_MAX_POINTS];
187  int *unused; // [VIZ_GEOREF_SPLINE_MAX_POINTS];
188  int *index; // [VIZ_GEOREF_SPLINE_MAX_POINTS];
189 
190  private:
191  CPL_DISALLOW_COPY_ASSIGN(VizGeorefSpline2D)
192 };
193 
194 #endif /* #ifndef DOXYGEN_SKIP */
195 
196 #endif /* THINPLATESPLINE_H_INCLUDED */
#define CPLFree
Alias of VSIFree()
Definition: cpl_conv.h:81
Various convenience functions for CPL.
Public (C callable) GDAL algorithm entry points, and definitions.
#define CPL_DISALLOW_COPY_ASSIGN(ClassName)
Helper to remove the copy and assignment constructors so that the compiler will not generate the defa...
Definition: cpl_port.h:1084

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