circle.cc File Reference

#include "generic.h"
#include "circle.h"

Functions
int	main ()
	Driver. More...

Function Documentation

main()

int main

(

)

Driver.

{
 
 // X-coordinate of the circle's centre
 double x_c=0.5;
 
 // Y-coordinate of the circle's centre
 double y_c=1.5;
 
 // Radius
 double R=0.9;
 
 // Build circle object with specified (const) parameters 
 //-------------------------------------------------------
 GeneralCircle circle0(x_c,y_c,R);
 
 
 // Build circle object with Data -- the Data values might be determine
 //--------------------------------------------------------------------
 // "somewhere else", e.g. as part of the solution of another problem 
 //------------------------------------------------------------------
 
 // The circle's shape is determine by a single Data object whose
 // three values specify x_c, y_c and R:
 Data* circle_data_pt=new Data(3);
 
 // Set the values
 circle_data_pt->set_value(0,x_c);
 circle_data_pt->set_value(1,y_c);
 circle_data_pt->set_value(2,R);
 
 // Build the object
 GeneralCircle circle1(circle_data_pt);
 
 // Number of plot points
 unsigned npts=100;
 
 // Lagrangian coordinate and position vector (both as vectors)
 Vector<double> xi(1);
 Vector<double> r(2);
 
 // Output circles
 ofstream some_file0, some_file1;
 some_file0.open("circle0.dat");
 some_file1.open("circle1.dat");
 
 for (unsigned i=0;i<npts;i++)
  {
   xi[0]=2.0*MathematicalConstants::Pi*double(i)/double(npts-1);
   circle0.position(xi,r);  
   some_file0 << r[0] << " " << r[1] << std::endl;
   circle1.position(xi,r);  
   some_file1 << r[0] << " " << r[1] << std::endl;
  }
 some_file0.close();
 some_file1.close();
 
 
}

References i, BiharmonicTestFunctions2::Pi, oomph::GeneralCircle::position(), UniformPSDSelfTest::r, R, and oomph::Data::set_value().