Octree(const Iter& begin, const Iter& end, unsigned int min) :
m_minObjects(min)
{
WorldPoint p0, p1;
CalculateExtents(begin, end, p0, p1);
m_p0 = p0;
m_p1 = p1;
for(Iter iter = begin; iter != end; ++iter)
{
m_objects.push_back(*iter);
}
PopulateSubTrees();
}
void CMFCTessView::OnDraw(CDC* pDC)
{
CMFCTessDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
// TODO: add draw code for native data here
//some per-drawing init stuff
glLoadIdentity();
//setup drawing dimensions, etc
CPoint vptorg = m_pDC->GetViewportOrg() ; //note m_pDC, NOT pDC
CRect rect ;
GetWindowRect( &rect ) ;
int dx = rect.Width() ;
int dy = rect.Height() ;
glViewport( 0, 0, dx, dy );
glMatrixMode( GL_MODELVIEW );
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
// create bitmaps for the device context font's first 256 glyphs
HDC hdc = m_pDC->GetSafeHdc() ;
wglUseFontBitmaps(hdc, 0, 256, 1000);
glListBase(1000);
float R ;
if( pDoc->m_ContourList.GetCount() > 0 )
{
CalculateExtents() ; // Collect overall figure extents (in meters)
R = Radius ;
//11/29/03 experiment to eliminate probs w/non-square windows
float glleft = -R ;
float gltop = +R ;
float nearplane = -R ; //rev 07/25/03
float farplane = R ; //rev 07/25/03
float glleft2 = glleft ;
float gltop2 = gltop ;
float glright2 = ( glleft + 2*R ) ;
float glbottom2 = ( gltop - 2*R ) ;
//adjust for non-square viewing window
float dxdy = (float)dx/(float)dy ; //=1.00 for square window
if( dxdy > 1 )
{
glOrtho( glleft2*dxdy , glright2*dxdy, glbottom2, gltop2, nearplane, farplane ) ;
}
else
{
glOrtho( glleft2 , glright2, glbottom2/dxdy, gltop2/dxdy, nearplane, farplane ) ;
}
glTranslatef( -m_Center.x, -m_Center.y, -m_Center.z ) ;
}
else
{
CString txtstr ;
glOrtho( -1.f , 1.f, -1.f, 1.f, -1.f, 1.f ) ;
glTranslatef( 0.f, 0.f, 0.f ) ;
txtstr = "Nothing to draw" ;
glColor3f( 0.f, 0.f, 0.f ) ;
glRasterPos3f(0.0F, 0.0F, 0.0F );
glCallLists(txtstr.GetLength(), GL_UNSIGNED_BYTE, txtstr);
//clean up & exit
glFlush();
glDeleteLists(1000, 256) ;
SwapBuffers( m_pDC->GetSafeHdc() );
return ;
}
glPushMatrix() ;
//01/09/05 implement tessellation
GLUtesselator *tobj;
tobj = gluNewTess();
//added 02/09/05 as part of mem leak fix
while( gm_VertexPtrList.GetCount() > 0 )
{
GLdouble* pV = (GLdouble*)gm_VertexPtrList.RemoveHead() ;
delete[] pV ;
pV = NULL ;
}
gluTessCallback(tobj, GLU_TESS_BEGIN, (void (CALLBACK *) ())beginCallback);
gluTessCallback(tobj, GLU_TESS_VERTEX, (void (CALLBACK *) ()) vertexCallback);
gluTessCallback(tobj, GLU_TESS_END, (void (CALLBACK *) ())endCallback);
gluTessCallback(tobj, GLU_TESS_ERROR,(void (CALLBACK *) ())errorCallback);
gluTessCallback(tobj, GLU_TESS_COMBINE, (void (CALLBACK *) ())combineCallback);
glShadeModel(GL_SMOOTH);
gluTessProperty(tobj, GLU_TESS_WINDING_RULE,
m_WindingRule );
//only one polygon, but multiple contours
gluTessBeginPolygon(tobj, NULL);
POSITION pos = pDoc->m_ContourList.GetHeadPosition() ;
while ( pos )
{
CContour* pCtr = (CContour*)pDoc->m_ContourList.GetNext( pos ) ;
ASSERT( pCtr != NULL && pCtr->m_NumVertex > 0 && pCtr->m_ppVertexArray != NULL ) ;
int numcorners = pCtr->m_NumVertex ;
gluTessBeginContour(tobj);
for( int cnridx = 0; cnridx < numcorners; cnridx++ )
{
GLdouble* glvert = pCtr->m_ppVertexArray[cnridx];
gluTessVertex( tobj, glvert, glvert ) ;
TRACE( "Draw: Sent vertex(%f,%f,%f,%f,%f,%f)\n", glvert[0],glvert[1],glvert[2],glvert[3],glvert[4],glvert[5] ) ;
}
gluTessEndContour(tobj);
} //end of all contour definitions
gluTessEndPolygon(tobj);
//clean up & exit
glFlush();
glDeleteLists(1000, 256) ; // delete our 256 glyph display lists
SwapBuffers( m_pDC->GetSafeHdc() );
gluDeleteTess( tobj ) ;
//added 02/09/05 as part of mem leak fix
while( gm_VertexPtrList.GetCount() > 0 )
{
GLdouble* pV = (GLdouble*)gm_VertexPtrList.RemoveHead() ;
delete[] pV ;
pV = NULL ;
}
}
