DGtal 1.3.0
Loading...
Searching...
No Matches
exampleGridCurve3d-2.cpp
Go to the documentation of this file.
1
54#include <iostream>
55#include "DGtal/base/Common.h"
56
57#include "DGtal/helpers/StdDefs.h"
58#include "DGtal/topology/KhalimskySpaceND.h"
59#include "DGtal/topology/SurfelAdjacency.h"
60#include "DGtal/topology/DigitalSurface.h"
61#include "DGtal/topology/SetOfSurfels.h"
62#include "DGtal/topology/DigitalSurface2DSlice.h"
63#include "DGtal/topology/helpers/Surfaces.h"
64
65#include "DGtal/io/viewers/Viewer3D.h"
66#include "DGtal/io/readers/VolReader.h"
67#include "DGtal/io/DrawWithDisplay3DModifier.h"
68#include "DGtal/images/ImageSelector.h"
69#include "DGtal/images/ImageHelper.h"
70#include "DGtal/kernel/sets/DigitalSetInserter.h"
71#include "DGtal/io/Color.h"
72
73#include "DGtal/geometry/curves/GridCurve.h"
74
75#include "ConfigExamples.h"
76
77
78
80using namespace std;
81using namespace DGtal;
82using namespace Z3i;
84
85int main( int argc, char** argv )
86{
87 trace.info() << "exampleGridCurve3d-2: the type of data to be displayed "
88 << "may be given as argument as follows: "
89 << argv[0] << " inner" << endl;
90 trace.info() << "Available types are: gridcurve (default), inner, outer, incident" << endl;
91
92 string type = (argc > 1) ? string(argv[1]) : "gridcurve";
93 trace.info() << "Chosen type: " << type << endl;
94
95 //vol reading and digital set construction
96 trace.beginBlock( "Reading vol file into an image." );
98 std::string inputFilename = examplesPath + "samples/cat10.vol";
99 Image image = VolReader<Image>::importVol(inputFilename);
100 DigitalSet set3d (image.domain());
102 trace.info() << set3d.size() << " voxels." << std::endl;
103 trace.endBlock();
104
105 //Khalimsky space construction
106 trace.beginBlock( "Construct the Khalimsky space from the image domain." );
107 KSpace ks;
108 trace.endBlock();
109
110 //digital surface construction
111 typedef SurfelAdjacency<KSpace::dimension> MySurfelAdjacency;
112 MySurfelAdjacency surfAdj( true ); // interior in all directions.
113
114 trace.beginBlock( "Extracting boundary by scanning the space. " );
115 typedef KSpace::Surfel Surfel;
117 typedef SetOfSurfels< KSpace, SurfelSet > MySetOfSurfels;
119 MySetOfSurfels theSetOfSurfels( ks, surfAdj );
120 Surfaces<KSpace>::sMakeBoundary( theSetOfSurfels.surfelSet(),
121 ks, set3d,
122 image.domain().lowerBound(),
123 image.domain().upperBound() );
124 MyDigitalSurface digSurf( theSetOfSurfels );
125 trace.info() << digSurf.size() << " surfels." << std::endl;
126 trace.endBlock();
127
128 //slice retrieving
129 trace.beginBlock( "Extracting slice and constructing a grid curve. " );
131 typedef DigitalSurface2DSlice< MyTracker > My2DSlice;
132
133 //Extract an initial boundary cell
134 Surfel surf = *digSurf.begin();
135 MyTracker* tracker = digSurf.container().newTracker( surf );
136
137 // Extract the bondary contour associated to the initial surfel in
138 // its first direction
139 My2DSlice slice( tracker, *(ks.sDirs( surf )) );
140 delete tracker;
141
143 GridCurve<KSpace> gc(ks);
144 gc.initFromSCellsRange( slice.begin(), slice.end() );
146
147 trace.endBlock();
148
149
150 // for 3D display with Viewer3D
151 QApplication application(argc,argv);
152 trace.beginBlock( "Display all with QGLViewer." );
153 Viewer3D<Space, KSpace> viewer(ks);
154 viewer.show();
155 // Displaying all the surfels in transparent mode
156 viewer << SetMode3D( surf.className(), "Transparent");
157 for( MyDigitalSurface::ConstIterator it = theSetOfSurfels.begin(),
158 it_end = theSetOfSurfels.end(); it != it_end; ++it )
159 viewer<< *it;
160
161
162 // Displaying slice
163 viewer << Viewer3D<Space, KSpace>::shiftSurfelVisu;
164 viewer << SetMode3D( surf.className(), "");
165 viewer.setFillColor( Color( 50, 50, 255 ) );
166
167 if (type == "gridcurve")
168 {
169 viewer << gc;
170 }
171 else if (type == "inner")
172 {
173 viewer << gc.getInnerPointsRange();
174 }
175 else if (type == "outer")
176 {
177 viewer << gc.getOuterPointsRange();
178 }
179 else if (type == "incident")
180 {
181 viewer << gc.getIncidentPointsRange();
182 }
183 else
184 {
185 trace.info() << "Display type not known." << std::endl;
186 }
187
188 viewer << Viewer3D<Space, KSpace>::updateDisplay;
189 trace.endBlock();
190
191 return application.exec();
192}
193// //
Structure representing an RGB triple with alpha component.
Definition: Color.h:68
Aim: A wrapper class around a STL associative container for storing sets of digital points within som...
Aim: this output iterator class is designed to allow algorithms to insert points in the digital set....
Aim: Represents a 2-dimensional slice in a DigitalSurface. In a sense, it is a 4-connected contour,...
Aim: Represents a set of n-1-cells in a nD space, together with adjacency relation between these cell...
const DigitalSurfaceContainer & container() const
DigitalSurfaceContainer::SurfelConstIterator ConstIterator
DigitalSurfaceContainer::DigitalSurfaceTracker DigitalSurfaceTracker
ConstIterator begin() const
virtual void setFillColor(DGtal::Color aColor)
Aim: describes, in a cellular space of dimension n, a closed or open sequence of signed d-cells (or d...
Definition: GridCurve.h:173
IncidentPointsRange getIncidentPointsRange() const
Definition: GridCurve.h:486
OuterPointsRange getOuterPointsRange() const
Definition: GridCurve.h:474
InnerPointsRange getInnerPointsRange() const
Definition: GridCurve.h:462
bool initFromSCellsRange(const TIterator &itb, const TIterator &ite)
Aim: implements association bewteen points lying in a digital domain and values.
Definition: Image.h:70
Aim: This class is a model of CCellularGridSpaceND. It represents the cubical grid as a cell complex,...
std::set< SCell > SurfelSet
Preferred type for defining a set of surfels (always signed cells).
DirIterator sDirs(const SCell &p) const
Given a signed cell [p], returns an iterator to iterate over each coordinate the cell spans.
Aim: A model of CDigitalSurfaceContainer which defines the digital surface as connected surfels....
Definition: SetOfSurfels.h:74
static void sMakeBoundary(SCellSet &aBoundary, const KSpace &aKSpace, const PointPredicate &pp, const Point &aLowerBound, const Point &aUpperBound)
Aim: Represent adjacencies between surfel elements, telling if it follows an interior to exterior ord...
void beginBlock(const std::string &keyword="")
std::ostream & info()
double endBlock()
virtual void show()
Overload QWidget method in order to add a call to updateList() method (to ensure that the lists are w...
DigitalSurface< MyDigitalSurfaceContainer > MyDigitalSurface
MyDigitalSurface::SurfelSet SurfelSet
DGtal is the top-level namespace which contains all DGtal functions and types.
void setFromImage(const I &aImg, const O &ito, const typename I::Value &aThreshold=0)
Trace trace
Definition: Common.h:154
STL namespace.
ImageContainerBySTLVector< Domain, Value > Type
Definition: ImageSelector.h:78
Modifier class in a Display3D stream. Useful to choose your own mode for a given class....
Represents a signed cell in a cellular grid space by its Khalimsky coordinates and a boolean value.
std::string className() const
Return the style name used for drawing this object.
static ImageContainer importVol(const std::string &filename, const Functor &aFunctor=Functor())
int main()
Definition: testBits.cpp:56