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JPolyline3D.cc
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1 #include <iostream>
2 #include <fstream>
3 
5 using namespace JGEOMETRY3D ;
6 using namespace std ;
7 
8 inline void printPolyline(const JPolyline3D& pl) {
9  for (int i=0; i<(int)pl.size()-1; ++i) {
10  cout << "(" << pl[i] << ")-" ;
11  }
12  if (pl.size() > 0) {
13  cout << "(" << pl.back() << ")";
14  }
15 }
16 
17 /**
18  * \file
19  *
20  * Example program for the JGEOMETRY::JPolyline3D class.
21  * \author mjongen
22  */
23 int main( int argc, char** argv ) {
24  // create a polyline with three vertices
25  JPolyline3D pl(3) ;
26 
27  // set vertex positions
28  pl[0] = JGEOMETRY3D::JVector3D(1,0,0) ;
29  pl[1] = JGEOMETRY3D::JVector3D(0,1,0) ;
30  pl[2] = JGEOMETRY3D::JVector3D(0,0,1) ;
31 
32  // print vertex positions
33  cout << "Initial polyline: " << endl ;
34  printPolyline(pl) ;
35  cout << endl ;
36 
37  // create rotation around the z-axis
38  JRotation3Z R( 0.5*M_PI ) ;
39 
40  // rotate
41  pl.rotate(R) ;
42  cout << "After a 90 degree rotation around the z-axis:" << endl ;
43  printPolyline(pl) ;
44  cout << endl ;
45 
46  // rotate back
47  pl.rotate_back(R) ;
48  cout << "After rotating back:" << endl ;
49  printPolyline(pl) ;
50  cout << endl ;
51 
52  cout << endl ;
53  cout << "Done!" << endl ;
54 
55  return 0 ;
56 }
int main(int argc, char *argv[])
Definition: Main.cc:15
Rotation around Z-axis.
Definition: JRotation3D.hh:85
Data structure for vector in three dimensions.
Definition: JVector3D.hh:34
then usage $script[distance] fi case set_variable R
Definition: JDrawLED.sh:43
JPolyline3D & rotate(const JRotation3D &R)
Rotate all vertices.
Definition: JPolyline3D.hh:72
Data structure for polyline in three dimensions.
Definition: JPolyline3D.hh:25
void printPolyline(const JPolyline3D &pl)
Definition: JPolyline3D.cc:8
JPolyline3D & rotate_back(const JRotation3D &R)
Rotate back all vertices.
Definition: JPolyline3D.hh:83