DGtal 1.3.0
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exampleAlphaThickSegmentNoisy.cpp
Go to the documentation of this file.
1
43#include <iostream>
44#include "ConfigExamples.h"
45#include "DGtal/base/Common.h"
47#include "DGtal/geometry/curves/AlphaThickSegmentComputer.h"
48#include "DGtal/helpers/StdDefs.h"
49#include "DGtal/io/readers/PointListReader.h"
51#include "DGtal/io/boards/Board2D.h"
53
54using namespace std;
55using namespace DGtal;
56
58
59int main( )
60{
61 trace.beginBlock ( "Example exampleAlphaThickSegment" );
62
64 typedef AlphaThickSegmentComputer< Z2i::RealPoint > AlphaThickSegmentComputer2D;
66
67 Board2D aBoard;
68 std::string file = examplesPath + "samples/contourSnoisy.sdp";
70 std::vector<Z2i::RealPoint> aContour = PointListReader<Z2i::RealPoint>::getPointsFromFile(file);
72
73 // displaying contour
74 aBoard << SetMode(aContour[0].className(), "Grid");
75 for (unsigned int i = 0; i< aContour.size(); i++){
76 aBoard << aContour[i];
77 aBoard.drawLine(aContour[i][0], aContour[i][1],
78 aContour[(i+1)%aContour.size()][0], aContour[(i+1)%aContour.size()][1]);
79 }
80
81
82 //initialisation of an AlphaThickSegmentComputer2D of thickness 10 and forward recognition.
85 AlphaThickSegmentComputer2D anAlphaSegment(15);
88 std::vector<Z2i::RealPoint>::const_iterator it = aContour.begin();
89 while (anAlphaSegment.extendFront(*it)) {
90 it++;
91 }
94
96 aBoard << anAlphaSegment;
98 AlphaThickSegmentComputer2D anAlphaSegment2(9);
100 anAlphaSegment2.init(aContour.begin());
101 while (anAlphaSegment2.end() != aContour.end() &&
102 anAlphaSegment2.extendFront()) {
103 }
105
107 aBoard << CustomStyle( anAlphaSegment2.className(), new CustomColors( DGtal::Color::Blue, DGtal::Color::None ) );
108 aBoard << anAlphaSegment2;
110
111 AlphaThickSegmentComputer2D anAlphaSegment3(2);
112 anAlphaSegment3.init(aContour.begin());
113 while (anAlphaSegment3.end() != aContour.end() &&
114 anAlphaSegment3.extendFront()) {
115 }
116 aBoard << CustomStyle( anAlphaSegment3.className(), new CustomColors( DGtal::Color::Green, DGtal::Color::None ) );
117 aBoard << anAlphaSegment3;
118
119
120 aBoard.saveEPS("exampleAlphaThickSegmentNoisy.eps");
121
122 trace.endBlock();
123 return 0;
124}
125// //
Aim: This class is devoted to the recognition of alpha thick segments as described in ....
Aim: This class specializes a 'Board' class so as to display DGtal objects more naturally (with <<)....
Definition: Board2D.h:71
static const Color None
Definition: Color.h:412
static const Color Green
Definition: Color.h:417
static const Color Blue
Definition: Color.h:419
void beginBlock(const std::string &keyword="")
double endBlock()
void drawLine(double x1, double y1, double x2, double y2, int depthValue=-1)
Definition: Board.cpp:368
void saveEPS(const char *filename, PageSize size=Board::BoundingBox, double margin=10.0) const
Definition: Board.cpp:805
DGtal is the top-level namespace which contains all DGtal functions and types.
Trace trace
Definition: Common.h:154
STL namespace.
Custom style class redefining the pen color and the fill color. You may use Board2D::Color::None for ...
Definition: Board2D.h:279
static std::vector< TPoint > getPointsFromFile(const std::string &filename, std::vector< unsigned int > aVectPosition=std::vector< unsigned int >())
Modifier class in a Board2D stream. Useful to choose your own mode for a given class....
Definition: Board2D.h:247