main.cpp

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#include <cassert>
#include <iostream>
#include <deque>

#include <GL/glut.h>
#include <GL/gl.h>

using namespace std;

#include <typedefs.h>

#include <point.h>
#include <random.h>
#include <gobj.h>

#include <polytrimon.h>


void shape02( vector< point2<float> > & vL )
{
  vL.clear();

  uintc vsz = 7;
  float v[vsz*2] = 
  {
     4.0, 9.0,
     7.0, 8.0,
     7.0, 5.0,
     8.0, 3.0,
    12.0, 2.0,
     1.0, 0.0,
     0.0, 7.0
  };

  for (uint i=0; i<vsz; ++i)
    vL.push_back( point2<float>(v[i*2],v[i*2+1]) );
}


void shape01(vector< point2<float> > & vL)
{
  vL.clear();

  uintc vsz = 25;
  float v[vsz*2] = 
  {
    6.0, 17.0,
    5.5, 16.0,
    6.5, 15.0,
    8.0, 14.0,
   11.0, 11.5,

   15.0, 10.5,
    8.0,  9.5,
   10.0,  9.0,
    7.0,  8.5,
    6.5,  7.5,

    9.0,  7.5,
    9.5,  6.5,
    9.0,  5.0,
    7.0,  3.0,
    9.0,  1.5,

   13.0,  0.0,
    0.0,  1.0,
    4.0,  2.0,
    9.0,  6.0,
    5.0,  6.0,

    3.0,  8.0,
    5.5, 10.0,
    6.0, 11.0,
    5.0, 12.0,
    1.0, 13.5,
  };

  for (uint i=0; i<vsz; ++i)
    vL.push_back( point2<float>(v[i*2],v[i*2+1]) );
}

class printtri
{
public:

  void operator () 
  (
    uintc i,
    uintc j,
    uintc k
  )
  {
    cout << "(" << i << "," << j << ",";
    cout << k << ")" << endl;
  }

};


void test01()
{

  vector< point2<float> > pts;

  shape01(pts);

  polytrimon p(pts);

  p.tessellate( printtri() );

}

gobjContainer xGraphics(true);

vector< point2<float> > pts;

class drawtri
{
  gobjContainer * c;
  random11<double> r;
public:

  drawtri()
    { c = gobjContainer::global; }
  
  void operator () 
  (
    uintc i,
    uintc j,
    uintc k
  )
  {
    c->push( new gobjglColor3f(r(),r(),r()) );
    c->push( new gobjglVertex2f( pts[i].x, pts[i].y ) );
    c->push( new gobjglVertex2f( pts[j].x, pts[j].y ) );
    c->push( new gobjglVertex2f( pts[k].x, pts[k].y ) );
  }

};



void display()
{
  glClear(GL_COLOR_BUFFER_BIT);

  xGraphics.draw();

  glFlush();
}

void keyboard(unsigned char key, int x, int y)
{
  switch (key)
  {
    case 27:
      exit(0);
      break;
  }
}

void test02(int argc, char** argv)
{
  glutInit(&argc,argv);
  glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
  
  uintc wx=600;
  uintc wy=800;
  glutInitWindowSize(wx,wy);

  glutCreateWindow("");
  glutKeyboardFunc(keyboard);

  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();

  
  float x0 = -5.0;
  float x1 = 20.0;

  float dx = x1-x0;
  float dy = dx/(float)wx*wy; 
  
  float y0 = -5.0;
  float y1 = dy;

  gluOrtho2D(x0,x1,y0,y1);

  glutDisplayFunc(display);

  xGraphics.set();


  //
  //  Finish with graphics initialization

  shape01(pts);


  gobjContainer * c = gobjContainer::global;
/*
  c->push_back(new gobjglColor3f(1.0,0.0,0.0));

  c->push_back( new gobjGL_LINE_LOOP() );
  for (unsigned int i=0; i<pts.size(); ++i)
    c->push_back( new gobjglVertex2f(pts[i].x,pts[i].y) );
  c->push_back( new gobjglEnd() );
*/

  polytrimon p(pts);

  c->push( new gobjglBegin(GL_TRIANGLES) );
  p.tessellate( drawtri() );
  c->push( new gobjglEnd() );

  glutMainLoop();
}

  




int main(int argc, char** argv)
{
  test02(argc,argv);

  return 0;
}