VIZ++ Samples

1 Screenshot

2 Source code

/*
 * RegularPolygon.cpp 
 * Copyright (c) 2015 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED. 
 */


#include <viz++/opengl/OpenGLMainView.h>

#include <viz++/opengl/OpenGLGC.h>
#include <viz++/opengl/OpenGLRegularPolygon.h>
#include "Resource.h"

namespace VIZ {

class MainView :public OpenGLMainView {

private:
  SmartPtr<OpenGLGC>                gc;
  SmartPtr<OpenGLRegularPolygon>    polygon;
  SmartPtr<OpenGLRegularPolygon>    pentagon;
    
public:
  virtual void display()
  {
      if (gc && polygon && pentagon) {;
        gc->loadIdentity();
        gc -> clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        gc ->pushMatrix();
        gc->lookAt(2.0, 4.0, 8.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);

        gc -> translate(-1.0, -1.0, 0.0);
        gc->polygonMode(GL_FRONT_AND_BACK, GL_FILL);//GL_LINE);
        gc->color(0.0, 1.0, 0.0);
        //Draw a polygon
        polygon -> draw(gc);
        gc->popMatrix();
      
        gc ->pushMatrix();
        gc->lookAt(2.0, 4.0, 10.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);

        gc -> translate(1.0, 1.0, 1.5);
        gc->polygonMode(GL_FRONT_AND_BACK, GL_LINE);
        gc->color(1.0, 0.0, 0.0);
        //Draw a pentagon.
        pentagon -> draw(gc);
        gc->popMatrix();
      }
  }
 
  virtual void resize(int w, int h)
  {
      if (w == 0 || h == 0) {
          return;
      }
      if (gc) {
        gc->matrixMode(GL_PROJECTION);
        gc->loadIdentity();
        
        gc->perspective(20.0, (double)w / (double)h, 0.5, 40.0); 

        gc->matrixMode(GL_MODELVIEW);
      }
  }

  virtual void initialize()
  {
      gc       = new OpenGLGC();
      polygon  = new OpenGLRegularPolygon(8);
      pentagon = new OpenGLRegularPolygon(5);
  }

public:
  MainView(OpenGLApplet& applet, int width, int height, const char* name)
  :OpenGLMainView(applet, width, height, name) 
  {
  }

  ~MainView()
  {
  }
};

}

//
int main(int argc, char** argv) 
{
  try {
    ModuleFileName module;
    const char*  name = module.getAppName();
    OpenGLApplet applet(argc, argv);

    MainView view(applet, 480, 480, name);
    view.realize();

    applet.run();
    
  } catch (Exception& ex) {
    caught(ex);
  }
  return 0;
}