void FX_DWF_2D_Generator::getUnits( const WT_Object *obj )
{
	WT_Units units = *(WT_Units *) obj;
	const WT_Matrix mat16 = units.application_to_dwf_transform();
	m_transformMatDWF = new double[16];
	memcpy( m_transformMatDWF, mat16.elements(), sizeof( double ) * 16 );

	WT_String str = units.units();
	if( str.is_ascii() )
	{
		m_unitType = str.ascii();
	}

	// Set scalar for each axises.
	if( m_transformMatDWF[0] != 0.0f )
		m_xScalar = m_transformMatDWF[0];
	if( m_transformMatDWF[5] != 0.0f )
		m_yScalar = m_transformMatDWF[5];
}

void FX_DWF_2D_Generator::getView( const WT_Object *obj )
{
	WT_View *viewObj = (WT_View *) obj;
	WT_Logical_Box viewBox = viewObj->view();

	m_viewHeight = viewBox.maxpt().m_y - viewBox.minpt().m_y;
	m_viewWidth = viewBox.maxpt().m_x - viewBox.minpt().m_x;

	m_DWF2DView_NLB.x = -m_viewWidth / 2;
	m_DWF2DView_NLB.y = -m_viewHeight / 2;

	m_DWF2DView_FRU.x = m_viewWidth / 2;
	m_DWF2DView_FRU.y = m_viewHeight / 2;

	m_viewTranslateX = viewBox.minpt().m_x + m_viewWidth / 2;
	m_viewTranslateY = viewBox.minpt().m_y + m_viewHeight / 2;
}

void FX_DWF_2D_Generator::generatePolyLine( const WT_Object *obj )
{
	WT_Polyline *polylineObj = (WT_Polyline *) obj;
	WT_Logical_Point* points = polylineObj->points();

	int count = polylineObj->count();

	VM_POINT_3D polyPoint;
	boost::shared_ptr<FX_DWF_Polyline> currentDrawing( boost::make_shared< FX_DWF_Polyline >() );

	// Set element type in order to specify drawing method.
	currentDrawing->m_elemType = FX_Polyline;
	currentDrawing->m_weight = m_lineWeight;

	for( int i=0; i<count; ++i )
	{
		polyPoint.x = ( points[i].m_x - m_viewTranslateX ) / m_xScalar; 
		polyPoint.y = ( points[i].m_y - m_viewTranslateY ) / m_yScalar;

		currentDrawing->m_pointList.push_back( polyPoint );
	}

	// Set a specified color to this new object.
	setObjectColor( currentDrawing );	

	// Put the new object into drawing stack.
	insertNewObject( currentDrawing );
}