Adding and Displaying Vector Objects

case 'l': 
case 'L': 
{ 
   // add a new vector line 
   VECTORLINE     Line; 
   L_INT          i; 
    
   Line.Pen.nSize = sizeof( VECTORPEN ); 
   Line.Pen.bExtPen = FALSE; 
   Line.Pen.NewPen.LogPen.lopnStyle = PS_SOLID; 
   Line.Pen.NewPen.LogPen.lopnWidth.x = 1; 
   Line.Pen.NewPen.LogPen.lopnWidth.y = 1; 
   Line.Pen.NewPen.LogPen.lopnColor = RGB( rand() % 246 + 10, rand() % 246 + 10, rand() % 246 + 10 ); 
    
   // set the line start and end points 
   for( i = 0; i < 2; i++ ) 
   { 
      Line.Point[ i ].x = rand() % 100; 
      Line.Point[ i ].y = rand() % 100; 
      Line.Point[ i ].z = rand() % 100; 
   } 
    
   LVectorLine VectorLine(&Line); 
    
   // add to current active layer 
   LVectorLayer VectorLayer; 
   GetActiveLayer(&VectorLayer); 
   VectorLayer.AddObject (&VectorLine ); 
   this->Reset (); 
} 
break; 
 
case 'e': 
case 'E': 
{ 
   VECTORELLIPSE     Ellipse; 
    
   Ellipse.Point.x = rand() % 100;; 
   Ellipse.Point.y = rand() % 100;; 
   Ellipse.Point.z = rand() % 100;; 
    
   Ellipse.Pen.nSize = sizeof( VECTORPEN ); 
   Ellipse.Pen.bExtPen = FALSE; 
   Ellipse.Pen.NewPen.LogPen.lopnStyle = PS_SOLID; 
   Ellipse.Pen.NewPen.LogPen.lopnWidth.x = 2; 
   Ellipse.Pen.NewPen.LogPen.lopnWidth.y = 2; 
   Ellipse.Pen.NewPen.LogPen.lopnColor = RGB( rand() % 246 + 10, rand() % 246 + 10, rand() % 246 + 10 ); 
    
   Ellipse.Brush.nSize = sizeof(VECTORBRUSH); 
   Ellipse.Brush.VectorBrushStyle = VECTORBRUSH_STANDARD; 
   Ellipse.Brush.BrushType.StandardBrush.LogBrush.lbColor = RGB( rand() % 246 + 10, rand() % 246 + 10, rand() % 246 + 10 ); 
   Ellipse.Brush.BrushType.StandardBrush.LogBrush.lbStyle = BS_SOLID; 
    
   Ellipse.xRadius = rand() % 10;; 
   Ellipse.yRadius = rand() % 10;; 
    
   LVectorEllipse VectorEllipse(&Ellipse); 
    
   // add to current active layer 
   LVectorLayer VectorLayer; 
    
   GetActiveLayer(&VectorLayer); 
   VectorLayer.AddObject (&VectorEllipse); 
   Reset (); 
} 
break; 
case 'g': 
case 'G': 
{ 
   VECTORPOLYGON     Polygon; 
   L_INT             i; 
    
   //Create Polygon Object 
   Polygon.Pen.nSize = sizeof( VECTORPEN ); 
   Polygon.Pen.bExtPen = FALSE; 
   Polygon.Pen.NewPen.LogPen.lopnStyle = PS_SOLID; 
   Polygon.Pen.NewPen.LogPen.lopnWidth.x = 2; 
   Polygon.Pen.NewPen.LogPen.lopnWidth.y = 2; 
   Polygon.Pen.NewPen.LogPen.lopnColor = RGB( rand() % 246 + 10, rand() % 246 + 10, rand() % 246 + 10 ); 
    
   // set the polygon brush 
   Polygon.Brush.nSize = sizeof( VECTORBRUSH ); 
   Polygon.Brush.VectorBrushStyle = VECTORBRUSH_STANDARD; 
   Polygon.Brush.BrushType.StandardBrush.LogBrush.lbColor = RGB( rand() % 246 + 10, rand() % 246 + 10, rand() % 246 + 10 ); 
   Polygon.Brush.BrushType.StandardBrush.LogBrush.lbStyle = BS_SOLID; 
   Polygon.Brush.BrushType.StandardBrush.LogBrush.lbHatch = 0; 
    
   Polygon.nPointCount = rand() % 5 + 3; 
   Polygon.Point = (pVECTORPOINT) malloc(Polygon.nPointCount * sizeof( VECTORPOINT ) ); 
   for( i = 0; i < Polygon.nPointCount; i++ ) 
   { 
      Polygon.Point[ i ].x = rand() % 100; 
      Polygon.Point[ i ].y = rand() % 100; 
      Polygon.Point[ i ].z = rand() % 100; 
   } 
    
   // set polygon fill mode 
   Polygon.nPolyFillMode = VECTOR_POLY_ALTERNATE; 
    
   LVectorPolygon VectorPolygon(&Polygon); 
    
   // add to current active layer 
   LVectorLayer VectorLayer; 
   GetActiveLayer(&VectorLayer); 
   VectorLayer.AddObject (&VectorPolygon); 
    
   free( Polygon.Point ); 
   Reset (); 
} 
break;