SOL9 Sample: TexturedSphereRotationByKeyInput

SOL9 2.0 Samples

1 Screenshot


2 Source code

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


//2017/02/28

// We have used 'world.topo.bathy.200412.3x5400x2700.jpg' file in the following page.
//
//http://visibleearth.nasa.gov/view.php?id=73909
//
//December, Blue Marble Next Generation w/ Topography and Bathymetry
//Credit: Reto St?ckli, NASA Earth Observatory


#include <sol/opengl/OpenGLMainView.h>
#include <sol/opengl/OpenGLView.h>
#include <sol/opengl/OpenGLGC.h>
#include <sol/opengl/OpenGLLight.h>
#include <sol/opengl/OpenGLMaterial.h>
#include <sol/opengl/OpenGLTexturedSphere.h>

namespace SOL {

class MainView :public OpenGLMainView {

private:
  //Inner class starts
  class SimpleView: public OpenGLView {
  private:
    SmartPtr<OpenGLGC>          gc;
    SmartPtr<OpenGLTexturedSphere> texture;
    float                       angle;
    Vertex3                     axis;
  public:
    virtual void display()
    {
      if (gc && texture) {
        gc -> loadIdentity();
        gc -> clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        gc -> clearColor(0.1, 0.1, 0.2, 1.0);
        gc -> enable(GL_CULL_FACE); 
        gc -> enable(GL_LIGHTING);

        gc -> enable(GL_DEPTH_TEST);
        gc -> color(1.0f, 1.0f, 1.0f);
        gc -> lookAt(0.0, 6.0, 2, 0.0, 0.0, 0.0, 0.0, 100.0, 0.0);

        gc -> translate(0.0f, 0.0f, 0.0f);

        gc -> rotate(angle, axis.x, axis.y, axis.z);

        OpenGLLight light(GL_LIGHT0);
        GLfloat lightPosition[] = {10, 20, 0, 1.0}; 
        light.position(lightPosition);
    
        GLfloat white[] = {1.0f, 1.0f, 1.0f, 1.0f};
        GLfloat blue[]  = {0.0f, 0.0f, 1.0f, 1.0f};
        GLfloat shininess[] = {100.0};
        OpenGLMaterial material(GL_FRONT);
        material.diffuse(blue);
        material.specular(white);
        material.shininess(shininess);
            
        texture -> draw(gc);
      }
    }
  
    virtual void resize(int w, int h)
    {
      if (w == 0 || h == 0) {
        return;
      }
      if (gc) {

        const float r = (float) w / (float) h;

        gc -> matrixMode(GL_PROJECTION);
        gc -> loadIdentity();
        gc -> frustum(-r, r, -1.0, 1.0, 2.0, 100.0);
        gc -> matrixMode(GL_MODELVIEW);
        gc -> loadIdentity() ;
      }
    }

    virtual void initialize()
    {
      axis.x = 20.0f;
      axis.y = -30.0f;
      axis.z = 40.0f;
      gc = new OpenGLGC();
      gc -> enable(GL_DEPTH_TEST);
      gc -> enable(GL_TEXTURE_2D);
      try {
        // The 'world.topo.bathy.200412.3x860x430.jpg' used here is based on
        // 'world.topo.bathy.200412.3x5400x2700.jpg' in the following page.
        //
        //http://visibleearth.nasa.gov/view.php?id=73909
        //
        //December, Blue Marble Next Generation w/ Topography and Bathymetry
        //Credit: Reto St?ckli, NASA Earth Observatory
        const char* imageFileName = "./images/world.topo.bathy.200412.3x860x430.jpg";

        ModuleFileName module;
        const char* appName = module.getAppName();
        
        texture = new OpenGLTexturedSphere(imageFileName, 2.5f, 40, 40);
        char title[1024];
        sprintf_s(title, CountOf(title), "%s - %s", "world.topo.bathy.200412.3: Reto Stockli, NASA Earth Observatory", 
              appName);
        View* parent=getParent();
        parent->setText(title);
        
      } catch (Exception& ex) {
        caught(ex);
      }
      
    }

   virtual void keyDown(Event& event)
    {
      WPARAM vkey = event.getWParam();
      switch (vkey) {
      case VK_LEFT:
        angle += 2.0;
        postRenderRequest();
        break;
      case VK_RIGHT:
        angle -= 2.0;
        postRenderRequest();
        break;
      default:
        break;
      }
    }
    
  public:
    SimpleView(View* parent, const char* name, Args& args)
    :OpenGLView(parent, name, args),
    angle(120.0f)
    {
    } 

    ~SimpleView()
    {
    }
  };
  //Inner class ends.
  
private:
  SmartPtr<SimpleView>  view;

  long size(Event& event)
  {
    int w, h;
    event.getSize(w, h);
    if (view) {
      view -> reshape(0, 0, w, h);
      view -> postResizeRequest(w, h);
    }
    return 1L;
  }


  virtual long keyDown(Event& event)
  {
    if (view) {
      view -> keyDown(event);
    }
    return 0;
  }
  
public:
  MainView(Application& applet, const char* name, Args& args)
  :OpenGLMainView(applet, name, args)
  {
    addEventHandler(WM_KEYDOWN, this,
              (Handler)&MainView::keyDown, NULL);
    Args ar;
    view = new SimpleView(this, "", ar);
  }

  ~MainView()
  {
  }
};
}

//
void Main(int argc, char** argv) 
{
  try {
    const char*  name = appName(argv[0]);
    Application applet(name, argc, argv);

    Args args;
    args.set(XmNwidth,  600);
    args.set(XmNheight, 600);

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

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


Last modified: 25 Feb 2017

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