basic/opengl/GL_Cylinder.cpp

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//## begin module%3856BCE3012A.cm preserve=no
//        %X% %Q% %Z% %W%
//## end module%3856BCE3012A.cm

//## begin module%3856BCE3012A.cp preserve=no
//## end module%3856BCE3012A.cp

//## Module: GL_Cylinder%3856BCE3012A; Pseudo Package body
//## Source file: C:\project\mpk\code\OpenGL\GL_Cylinder.cpp

//## begin module%3856BCE3012A.additionalIncludes preserve=no
//## end module%3856BCE3012A.additionalIncludes

//## begin module%3856BCE3012A.includes preserve=yes
#include <assert.h>
#include "glos.h"
#include <gl/glu.h>
#include <math.h>
#include <math/math2.h>
#include <math/vector4.h>
//## end module%3856BCE3012A.includes

// GL_Cylinder
#include "OpenGL\GL_Cylinder.h"
//## begin module%3856BCE3012A.additionalDeclarations preserve=yes
//## end module%3856BCE3012A.additionalDeclarations


// Class GL_Cylinder 




GL_Cylinder::GL_Cylinder (FrameManager* frameManager)
  //## begin GL_Cylinder::GL_Cylinder%945198452.hasinit preserve=no
      : slices(10), stacks(3), rings(3)
  //## end GL_Cylinder::GL_Cylinder%945198452.hasinit
  //## begin GL_Cylinder::GL_Cylinder%945198452.initialization preserve=yes
  ,MPK_Cylinder( frameManager )
  //## end GL_Cylinder::GL_Cylinder%945198452.initialization
{
  //## begin GL_Cylinder::GL_Cylinder%945198452.body preserve=yes
  //## end GL_Cylinder::GL_Cylinder%945198452.body
}

GL_Cylinder::GL_Cylinder (const GL_Cylinder& right)
  //## begin GL_Cylinder::GL_Cylinder%945198453.hasinit preserve=no
      : slices(10), stacks(3), rings(3)
  //## end GL_Cylinder::GL_Cylinder%945198453.hasinit
  //## begin GL_Cylinder::GL_Cylinder%945198453.initialization preserve=yes
  ,MPK_Cylinder( right )
  //## end GL_Cylinder::GL_Cylinder%945198453.initialization
{
  //## begin GL_Cylinder::GL_Cylinder%945198453.body preserve=yes
  //## end GL_Cylinder::GL_Cylinder%945198453.body
}


GL_Cylinder::~GL_Cylinder()
{
  //## begin GL_Cylinder::~GL_Cylinder%.body preserve=yes
  //## end GL_Cylinder::~GL_Cylinder%.body
}



//## Other Operations (implementation)
Entity* GL_Cylinder::Clone () const
{
  //## begin GL_Cylinder::Clone%945198442.body preserve=yes
        return new GL_Cylinder( *this ) ;
  //## end GL_Cylinder::Clone%945198442.body
}

bool GL_Cylinder::DrawExplicit () const
{
  //## begin GL_Cylinder::DrawExplicit%950474930.body preserve=yes
        glPushMatrix() ;

                //improve this is the wrong matrix style
                Matrix4x4 intermediate = theFrame ;
                Matrix4x4 transpose = intermediate.Transpose() ;
                ::glMultMatrixd( ( const double* )( transpose.values ) ) ;
                
                double rootThree = sqrt( 3.0 ) ;
                glRotated( -360 / 3.0, rootThree, rootThree, rootThree ) ;

                //VRML defines cylinders about their center, but OPENgl draws them from the base 
                //so draw them accordingly
                glTranslated( 0, 0, -this->height / 2.0 ) ;


                //cap 1
                glPushMatrix() ;
                        GLUquadricObj* cap1 = gluNewQuadric() ;
                        gluQuadricDrawStyle( cap1, GLU_FILL ) ;
                        gluQuadricNormals( cap1, GLU_SMOOTH ) ;
                        glRotated( 180.0, 1.0, 0.0, 0.0 ) ;
                        gluDisk( cap1, 0, radius, 10, 3 ) ;                     //IMPROVE: fix the slices/rings
                glPopMatrix() ;

                //cap 2
                glPushMatrix() ;
                        glTranslated( 0, 0, height ) ;
                        GLUquadricObj* cap2 = gluNewQuadric() ;
                        gluQuadricDrawStyle( cap2, GLU_FILL ) ;
                        gluQuadricNormals( cap2, GLU_SMOOTH ) ;
                        gluDisk( cap2, 0, radius, 10, 3 ) ;                     //IMPROVE: fix the slices/rings
                glPopMatrix() ;

                //body
                GLUquadricObj* qobj = gluNewQuadric() ;
                gluQuadricDrawStyle( qobj, GLU_FILL ) ;
                gluQuadricNormals( qobj, GLU_SMOOTH ) ;
                gluCylinder( qobj,  radius, radius, height, 10, 3 ) ;   //IMPROVE: fix the slices/stacks
                gluDeleteQuadric( qobj ) ;
        glPopMatrix() ;
        return true ;
  //## end GL_Cylinder::DrawExplicit%950474930.body
}

bool GL_Cylinder::Verify() const
{
        return true;
}

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