DGtal  0.9.4beta
viewer3D-7-stdplane.cpp
1 
51 #include <cstdlib>
53 #include <iostream>
54 #include "DGtal/base/Common.h"
55 #include "DGtal/helpers/StdDefs.h"
56 #include "DGtal/io/viewers/Viewer3D.h"
57 #include "DGtal/geometry/surfaces/COBAGenericStandardPlaneComputer.h"
59 
60 using namespace std;
61 using namespace DGtal;
62 
64 // Standard services - public :
65 
66 /*
67  Displays in the \a viewer all the points in the \a domain that
68  satisfies the predicate \a pred.
69 */
70 template <typename Viewer3D, typename Domain, typename Predicate>
71 void
72 displayPredicate( Viewer3D & viewer,
73  const Domain & domain, const Predicate & pred )
74 {
75  for ( typename Domain::ConstIterator itB = domain.begin(), itE = domain.end();
76  itB != itE; ++itB )
77  {
78  if ( pred( *itB ) )
79  viewer << *itB;
80  }
81 }
82 /*
83  Displays in the \a viewer all the points in the range [it,itE).
84 */
85 template <typename Viewer3D, typename InputIterator>
86 void
87 displayRange( Viewer3D & viewer, InputIterator it, InputIterator itE )
88 {
89  for ( ; it != itE; ++it )
90  viewer << *it;
91 }
92 
93 /*
94  Returns all the points in the \a domain that belongs to the standard
95  plane mu <= a*x+b*y+c*z < mu+|a|+|b|+|c|.
96 */
97 template <typename Domain>
98 std::vector<typename Domain::Point> pointsInStandardPlane
99 ( const Domain & domain,
100  typename Domain::Integer a,
101  typename Domain::Integer b,
102  typename Domain::Integer c,
103  typename Domain::Integer mu )
104 {
105  typedef typename Domain::Integer Integer;
106  typedef typename Domain::Point Point;
107  typedef typename Domain::ConstIterator ConstIterator;
108  std::vector<Point> pts;
109  Integer mup = mu + abs(a) + abs(b) + abs(c);
110  for ( ConstIterator it = domain.begin(), itE = domain.end();
111  it != itE; ++it )
112  {
113  Point p = *it;
114  Integer r = a * p[ 0 ] + b * p[ 1 ] + c * p[ 2 ];
115  if ( ( mu <= r ) && ( r < mup ) )
116  pts.push_back( p );
117  }
118  return pts;
119 }
120 
121 
122 int main( int argc, char** argv )
123 {
124  using namespace Z3i;
125  unsigned int nb = 0;
126  unsigned int nbok = 0;
127 
128  QApplication application(argc,argv);
129 
130  unsigned int diameter = argc > 1 ? atoi( argv[ 1 ] ) : 10;
131  int a = argc > 2 ? atoi( argv[ 2 ] ) : 2;
132  int b = argc > 3 ? atoi( argv[ 3 ] ) : 3;
133  int c = argc > 4 ? atoi( argv[ 4 ] ) : 5;
134  int mu = argc > 5 ? atoi( argv[ 5 ] ) : 0;
135  trace.beginBlock ( "Testing class COBAGenericStandardPlaneComputer" );
136  trace.info() << "Recognizing plane "
137  << mu << " <= " << a << " * x + "
138  << b << " * y + " << c << " * z < "
139  << (mu+abs(a)+abs(b)+abs(c)) << std::endl;
140  Domain domain1( Point( -diameter, -diameter, -diameter ),
141  Point( diameter, diameter, diameter ) );
142 
144  typedef PlaneComputer::Primitive Primitive;
145  PlaneComputer plane;
146  plane.init( 2*diameter, 1, 1 );
147 
148  std::vector<Point> recognized = pointsInStandardPlane( domain1,
149  a, b , c, mu );
150  ++nb, nbok += plane.extend( recognized.begin(), recognized.end() ) ? 1 : 0;
151  trace.info() << "(" << nbok << "/" << nb
152  << ") All points are recognized." << std::endl;
153  trace.info() << " - Plane=" << plane
154  << std::endl;
155  Primitive strip = plane.primitive();
156  trace.info() << "strip=" << strip
157  << " axis=" << strip.mainAxis()
158  << " axiswidth=" << strip.axisWidth()
159  << " diag=" << strip.mainDiagonal()
160  << " diagwidth=" << strip.diagonalWidth()
161  << std::endl;
162  ++nb, nbok += ( strip.diagonalWidth() < sqrt(3.0) ) ? 1 : 0;
163  trace.info() << "(" << nbok << "/" << nb
164  << ") Diagonal width < sqrt(3)." << std::endl;
165  trace.emphase() << ( (nb == nbok) ? "Passed." : "Error." ) << endl;
166  trace.endBlock();
167 
168  typedef Viewer3D<> MyViewer;
169  MyViewer viewer;
170  viewer.show();
171  Color red( 255, 0, 0 );
172  Color green( 0, 255, 0 );
173  Color grey( 200, 200, 200 );
174  Domain domain2( Point( -2*diameter, -2*diameter, -2*diameter ),
175  Point( 2*diameter, 2*diameter, 2*diameter ) );
176  viewer << CustomColors3D( red, red );
177  for ( std::vector<Point>::const_iterator it = recognized.begin(),
178  itE = recognized.end(); it != itE; ++it )
179  if ( ! strip( *it ) ) viewer << *it;
180  viewer << CustomColors3D( green, green );
181  displayRange( viewer, plane.begin(), plane.end() );
182  viewer << CustomColors3D( grey, grey );
183  displayPredicate( viewer, domain2, strip );
184  viewer << MyViewer::updateDisplay;
185  trace.info() << "- Points in green have been recognized as belonging to this standard plane." << std::endl;
186  trace.info() << "- Points in grey belongs also to the parallel strip of the recognized standard plane." << std::endl;
187  trace.info() << "- Points in red belongs to the parallel strip of the recognized standard plane but not to the input standard plane: NONE should be red." << std::endl;
188 
189  return application.exec();
190 }
191 // //
void beginBlock(const std::string &keyword="")
DGtal::int32_t Integer
Definition: StdDefs.h:74
const ConstIterator & begin() const
const ConstIterator & end() const
Trace trace
Definition: Common.h:137
STL namespace.
double endBlock()
Aim: A class that recognizes pieces of digital planes of given axis width. When the diagonal width is...
std::ostream & emphase()
void init(InternalInteger diameter, InternalInteger widthNumerator=NumberTraits< InternalInteger >::ONE, InternalInteger widthDenominator=NumberTraits< InternalInteger >::ONE)
DGtal is the top-level namespace which contains all DGtal functions and types.
std::ostream & info()
Structure representing an RGB triple with alpha component.
Definition: Color.h:66
virtual void show()
Overload QWidget method in order to add a call to updateList() method (to ensure that the lists are w...