public void setData( List<PieElement> data )
{
if( Children.Count > 0 )
Children.RemoveAt(0);
Data = data;
Sum = 0d;
foreach (PieElement element in Data)
Sum += element.value;
Model3DGroup group = new Model3DGroup();
group.Children.Add( new AmbientLight( Color.FromRgb( 128, 128, 128) ) );
group.Children.Add( new DirectionalLight( Colors.White, new Vector3D( 1, 1, 1 ) ) );
PiePieces = new List<PiePiece>();
double cCurrent = 0;
int idx = 0;
foreach (PieElement element in Data)
{
PiePiece piece = new PiePiece(cCurrent, (cCurrent += element.value / Sum * PI2), ColorList[idx%ColorList.Count]);
PiePieces.Add( piece );
group.Children.Add( piece.Geometry );
idx++;
}
ModelVisual3D visual = new ModelVisual3D();
visual.Content = group;
PerspectiveCamera camera = new PerspectiveCamera();
camera.FarPlaneDistance = 30;
camera.NearPlaneDistance = 1;
camera.FieldOfView = 90;
camera.Position = new Point3D (0, -6.5, -4.5 );
camera.LookDirection = new Vector3D( 0, 7.5, 5.5 );
camera.UpDirection = new Vector3D( 0, 1, 0 );
Children.Add( visual );
Camera = camera;
}
private void onMouseLeave( object obj, MouseEventArgs e )
{
if (MovePiece != null)
{
MovePiece.onRollOut();
MovePiece = null;
}
}
private HitTestResultBehavior onGeometryClickHit( System.Windows.Media.HitTestResult result )
{
RayMeshGeometry3DHitTestResult hit = result as RayMeshGeometry3DHitTestResult;
if (hit != null && hit.DistanceToRayOrigin < HitDistanceClick && hit.ModelHit is GeometryModel3D)
{
GeometryModel3D model = hit.ModelHit as GeometryModel3D;
foreach( PiePiece piece in PiePieces )
{
if( piece.Geometry == model )
{
HitDistanceClick = hit.DistanceToRayOrigin;
ClickPiece = piece;
break;
}
}
}
return HitTestResultBehavior.Continue;
}
private void onMouseDown( object obj, MouseEventArgs e )
{
Point pos = e.GetPosition( this );
PointHitTestParameters pointparams = new PointHitTestParameters( pos );
HitDistanceClick = double.MaxValue;
PiePiece lastClickPiece = ClickPiece;
ClickPiece = null;
VisualTreeHelper.HitTest( this, null, onGeometryClickHit, pointparams );
if( ClickPiece != lastClickPiece )
{
if (ClickPiece != null)
ClickPiece.Select(true);
if( lastClickPiece != null )
lastClickPiece.Select( false );
//Select.cEnd
}
}
public void SelectPiece(int id)
{
if (MovePiece != null)
MovePiece.Select(false);
if (id != -1 && PiePieces.Count > id && PiePieces[id] != null)
PiePieces[id].Select(true);
MovePiece = id == -1 ? null : PiePieces[id];
}
private void onMouseMove( object obj, MouseEventArgs e )
{
Point pos = e.GetPosition( this );
PointHitTestParameters pointparams = new PointHitTestParameters( pos );
HitDistanceMove = double.MaxValue;
PiePiece lastMovePiece = MovePiece;
MovePiece = null;
VisualTreeHelper.HitTest( this, null, onGeometryMoveHit, pointparams );
if( MovePiece != lastMovePiece )
{
if( MovePiece != null )
MovePiece.onRollOver();
if (lastMovePiece != null)
lastMovePiece.onRollOut();
}
}
