C# DataPoint.SetCursor2DataPointVisualFaces方法代码示例

        private static void UpdateDataPoint(DataPoint dataPoint, VcProperties property, object newValue)
        {
            if (property != VcProperties.Enabled)
            {
                if (dataPoint.Parent.Enabled == false || (Boolean)dataPoint.Enabled == false)
                {
                    return;
                }
            }

            Chart chart = dataPoint.Chart as Chart;

            if (chart == null)
                return;

            Marker marker = dataPoint.Marker;
            DataSeries dataSeries = dataPoint.Parent;
            PlotGroup plotGroup = dataSeries.PlotGroup;
            Double height = chart.ChartArea.ChartVisualCanvas.Height;
            Double width = chart.ChartArea.ChartVisualCanvas.Width;
            Double xPosition, yPosition;
            Canvas line2dLabelCanvas = null;

            xPosition = Graphics.ValueToPixelPosition(0, width, (Double)plotGroup.AxisX.InternalAxisMinimum, (Double)plotGroup.AxisX.InternalAxisMaximum, dataPoint.InternalXValue);
            yPosition = Graphics.ValueToPixelPosition(height, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, dataPoint.InternalYValue);

            if (dataSeries.Faces != null)
            {
                line2dLabelCanvas = dataSeries.Faces.LabelCanvas as Canvas;
                ColumnChart.UpdateParentVisualCanvasSize(chart, line2dLabelCanvas);
            }

            switch (property)
            {
                case VcProperties.Color:
                    if (marker != null && (Boolean)dataPoint.MarkerEnabled)
                        marker.BorderColor = (dataPoint.GetValue(DataPoint.MarkerBorderColorProperty) as Brush == null) ? ((newValue != null) ? newValue as Brush : dataPoint.MarkerBorderColor) : dataPoint.MarkerBorderColor;
                    break;
                case VcProperties.Cursor:
                    dataPoint.SetCursor2DataPointVisualFaces();
                    break;

                case VcProperties.Href:
                case VcProperties.HrefTarget:
                    dataPoint.SetHref2DataPointVisualFaces();
                    break;

                case VcProperties.LabelBackground:
                    //if (marker != null)
                    //    marker.TextBackground = dataPoint.LabelBackground;
                    CreateLabel4LineDataPoint(dataPoint, width, height, dataPoint.InternalYValue >= 0, xPosition, yPosition,
                        ref line2dLabelCanvas, true);
                    break;

                case VcProperties.LabelEnabled:
                    //if (marker.LabelEnabled == false)
                    //CreateMarkerAForLineDataPoint(dataPoint, width, height, ref line2dLabelCanvas, out xPosition, out yPosition);
                    //else
                    //    marker.LabelEnabled = (Boolean)dataPoint.LabelEnabled;
                    CreateLabel4LineDataPoint(dataPoint, width, height, dataPoint.InternalYValue >= 0, xPosition, yPosition,
                        ref line2dLabelCanvas, true);
                    break;

                case VcProperties.LabelFontColor:
                    //if (marker != null)
                    //    marker.FontColor = dataPoint.LabelFontColor;
                    CreateLabel4LineDataPoint(dataPoint, width, height, dataPoint.InternalYValue >= 0, xPosition, yPosition,
                        ref line2dLabelCanvas, true);
                    break;

                case VcProperties.LabelFontFamily:
                    //CreateMarkerAForLineDataPoint(dataPoint, width, height, ref line2dLabelCanvas, out xPosition, out yPosition);
                    CreateLabel4LineDataPoint(dataPoint, width, height, dataPoint.InternalYValue >= 0, xPosition, yPosition,
                        ref line2dLabelCanvas, true);
                    // marker.FontFamily = dataPoint.LabelFontFamily;
                    break;

                case VcProperties.LabelFontStyle:
                    //CreateMarkerAForLineDataPoint(dataPoint, width, height, ref line2dLabelCanvas, out xPosition, out yPosition);
                    CreateLabel4LineDataPoint(dataPoint, width, height, dataPoint.InternalYValue >= 0, xPosition, yPosition,
                        ref line2dLabelCanvas, true);
                    //marker.FontStyle = (FontStyle) dataPoint.LabelFontStyle;
                    break;

                case VcProperties.LabelFontSize:
                    //CreateMarkerAForLineDataPoint(dataPoint, width, height, ref line2dLabelCanvas, out xPosition, out yPosition);
                    CreateLabel4LineDataPoint(dataPoint, width, height, dataPoint.InternalYValue >= 0, xPosition, yPosition,
                        ref line2dLabelCanvas, true);
                    // marker.FontSize = (Double) dataPoint.LabelFontSize;
                    break;

                case VcProperties.LabelFontWeight:
                    //if (marker != null)
                    //    marker.FontWeight = (FontWeight) dataPoint.LabelFontWeight;
                    CreateLabel4LineDataPoint(dataPoint, width, height, dataPoint.InternalYValue >= 0, xPosition, yPosition,
                        ref line2dLabelCanvas, true);
                    break;

                case VcProperties.LabelStyle:
                    //CreateMarkerAForLineDataPoint(dataPoint, width, height, ref line2dLabelCanvas, out xPosition, out yPosition);
//.........这里部分代码省略.........

        /// <summary>
        /// Creates visual object for a StackedColumn
        /// </summary>
        /// <param name="isPositive">Whether the DataPoint YValue is greater than or equals to 0.</param>
        /// <param name="columnCanvas"></param>
        /// <param name="labelCanvas"></param>
        /// <param name="dataPoint"></param>
        /// <param name="isTopOFStack"></param>
        /// <param name="left"></param>
        /// <param name="top"></param>
        /// <param name="bottom"></param>
        /// <param name="columnWidth"></param>
        /// <param name="depth3d"></param>
        /// <param name="prevSum"></param>
        /// <param name="positiveOrNegativeIndex"></param>
        /// <param name="animationEnabled"></param>
        private static void CreateStackedColumnVisual(Boolean isPositive, Canvas columnCanvas, Canvas labelCanvas, 
            DataPoint dataPoint, Boolean isTopOFStack, Double left, ref Double top, ref Double bottom, Double columnWidth, 
            Double columnHeight, Double depth3d, ref Int32 positiveOrNegativeIndex, Boolean animationEnabled, 
            Double animationBeginTime)
        {   
            PlotGroup plotGroup = dataPoint.Parent.PlotGroup;
            Chart chart = dataPoint.Chart as Chart;         

            Faces column;
            Panel columnVisual = null;

            dataPoint.Parent.Faces = new Faces { Visual = columnCanvas, LabelCanvas = labelCanvas };
            
            if (chart.View3D)
            {   
                column = ColumnChart.Get3DColumn(dataPoint, columnWidth, columnHeight, depth3d, dataPoint.Color, null, null, null, (Boolean)dataPoint.LightingEnabled,
                (BorderStyles)dataPoint.BorderStyle, dataPoint.BorderColor, dataPoint.BorderThickness.Left);
                columnVisual = column.Visual as Panel;
                columnVisual.SetValue(Canvas.ZIndexProperty, ColumnChart.GetStackedColumnZIndex(left, top, (dataPoint.InternalYValue > 0), positiveOrNegativeIndex));
                dataPoint.Faces = column;
                ColumnChart.ApplyOrRemoveShadow(dataPoint, true, false);
            }
            else
            {   
                column = ColumnChart.Get2DColumn(dataPoint, columnWidth, columnHeight, true, false);
                columnVisual = column.Visual as Panel;
            }

            dataPoint.Faces = column;
            dataPoint.Faces.LabelCanvas = labelCanvas;

            columnVisual.SetValue(Canvas.LeftProperty, left);
            columnVisual.SetValue(Canvas.TopProperty, top);

            columnCanvas.Children.Add(columnVisual);

            dataPoint.IsTopOfStack = isTopOFStack;

            CreateOrUpdateMarker4VerticalChart(dataPoint, labelCanvas, new Size(columnVisual.Width, columnVisual.Height),
                          left, top);
            
            // labelCanvas.Children.Add(GetMarker(chart, columnParams, dataPoint, left, top));

            DataSeries currentDataSeries;

            // Apply animation
            if (animationEnabled)
            {
                currentDataSeries = dataPoint.Parent;

                if (currentDataSeries.Storyboard == null)
                    currentDataSeries.Storyboard = new Storyboard();

                // Apply animation to the data points dataSeriesIndex.e to the rectangles that form the columns
                currentDataSeries.Storyboard = ApplyStackedColumnChartAnimation(currentDataSeries, columnVisual, dataPoint.Parent.Storyboard, animationBeginTime, 0.5);
            }

            if (isPositive)
                bottom = top;
            else
                top = bottom;

            dataPoint.Faces.Visual.Opacity = dataPoint.Opacity * dataPoint.Parent.Opacity;
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint);
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint.Parent);
            dataPoint._parsedToolTipText = dataPoint.TextParser(dataPoint.ToolTipText);
            //dataPoint.AttachToolTip(chart, dataPoint, dataPoint.Faces.VisualComponents);
            //dataPoint.AttachHref(chart, dataPoint.Faces.VisualComponents, dataPoint.Href, (HrefTargets)dataPoint.HrefTarget);
            
            dataPoint.AttachToolTip(chart, dataPoint, dataPoint.Faces.Visual);
            dataPoint.AttachHref(chart, dataPoint.Faces.Visual, dataPoint.Href, (HrefTargets)dataPoint.HrefTarget);
            
            dataPoint.SetCursor2DataPointVisualFaces();
        }

//.........这里部分代码省略.........
            Marker marker = new Marker((MarkerTypes)dataPoint.MarkerType, (Double)dataPoint.MarkerScale, markerSize, markerBevel, markerColor, labelText);

            marker.Tag = new ElementData() { Element = dataPoint };

            marker.ShadowEnabled = (Boolean)dataPoint.ShadowEnabled;

            if (!VisifireControl.IsMediaEffectsEnabled)
                marker.PixelLavelShadow = false;
            else
                marker.PixelLavelShadow = true;

            marker.MarkerSize = new Size((Double)dataPoint.MarkerSize, (Double)dataPoint.MarkerSize);

            if (marker.MarkerType != MarkerTypes.Cross)
            {
                if (dataPoint.BorderColor != null)
                    marker.BorderColor = dataPoint.BorderColor;
            }
            else
                marker.BorderColor = markerColor;
            marker.BorderThickness = ((Thickness)dataPoint.MarkerBorderThickness).Left;

            if (!String.IsNullOrEmpty(labelText))
            {
                marker.FontColor = Chart.CalculateDataPointLabelFontColor(chart, dataPoint, dataPoint.LabelFontColor, LabelStyles.OutSide);
                marker.FontSize = (Double)dataPoint.LabelFontSize;
                marker.FontWeight = (FontWeight)dataPoint.LabelFontWeight;
                marker.FontFamily = dataPoint.LabelFontFamily;
                marker.FontStyle = (FontStyle)dataPoint.LabelFontStyle;
                marker.TextBackground = dataPoint.LabelBackground;

                marker.TextAlignmentX = AlignmentX.Center;
                marker.TextAlignmentY = AlignmentY.Center;

                if (!Double.IsNaN(dataPoint.LabelAngle) && dataPoint.LabelAngle != 0)
                {
                    marker.LabelAngle = dataPoint.LabelAngle;
                    marker.TextOrientation = Orientation.Vertical;

                    marker.TextAlignmentX = AlignmentX.Center;
                    marker.TextAlignmentY = AlignmentY.Center;

                    marker.LabelStyle = (LabelStyles)dataPoint.LabelStyle;
                }

                marker.CreateVisual();

                if (Double.IsNaN(dataPoint.LabelAngle) || dataPoint.LabelAngle == 0)
                {
                    if ((yPosition - marker.TextBlockSize.Height / 2) < 0)
                        marker.TextAlignmentY = AlignmentY.Bottom;
                    else if ((yPosition + marker.TextBlockSize.Height / 2) > plotAreaHeight)
                        marker.TextAlignmentY = AlignmentY.Top;

                    if ((xPosition - marker.TextBlockSize.Width / 2) < 0)
                        marker.TextAlignmentX = AlignmentX.Right;
                    else if ((xPosition + marker.TextBlockSize.Width / 2) > plotAreaWidth)
                        marker.TextAlignmentX = AlignmentX.Left;
                }
            }

            //marker.LabelEnabled =(Boolean) dataPoint.LabelEnabled;
            //marker.TextBackground = dataPoint.LabelBackground;
            //marker.FontColor = Chart.CalculateDataPointLabelFontColor(chart, dataPoint, dataPoint.LabelFontColor, LabelStyles.OutSide);
            //marker.FontSize = (Double)dataPoint.LabelFontSize;
            //marker.FontWeight = (FontWeight)dataPoint.LabelFontWeight;
            //marker.FontFamily = dataPoint.LabelFontFamily;
            //marker.FontStyle = (FontStyle)dataPoint.LabelFontStyle;

            //marker.TextAlignmentX = AlignmentX.Center;
            //marker.TextAlignmentY = AlignmentY.Center;

            marker.CreateVisual();

            marker.Visual.Opacity = (Double)dataPoint.Opacity * (Double)dataPoint.Parent.Opacity;

            marker.AddToParent(pointChartCanvas, xPosition, yPosition, new Point(0.5, 0.5));

            dataPoint._visualPosition = new Point(xPosition, yPosition);

            dpFaces.VisualComponents.Add(marker.Visual);
            dpFaces.Visual = marker.Visual;

            dpFaces.BorderElements.Add(marker.MarkerShape);

            dataPoint.Marker = marker;
            dataPoint.Faces = dpFaces;

            dataPoint.Faces.Visual.Opacity = (Double)dataPoint.Opacity * (Double)dataPoint.Parent.Opacity;
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint);
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint.Parent);
            dataPoint._parsedToolTipText = dataPoint.TextParser(dataPoint.ToolTipText);
            if(!chart.IndicatorEnabled)
                dataPoint.AttachToolTip(chart, dataPoint, dataPoint.Faces.VisualComponents);
            dataPoint.AttachHref(chart, dataPoint.Faces.VisualComponents, dataPoint.Href, (HrefTargets)dataPoint.HrefTarget);
            dataPoint.SetCursor2DataPointVisualFaces();

            if (dataPoint.Parent.SelectionEnabled && dataPoint.Selected)
                dataPoint.Select(true);
        }

//.........这里部分代码省略.........
            else
            {   
                Marker marker = dataPoint.Marker;

                marker.MarkerType = (MarkerTypes)dataPoint.MarkerType;
                marker.ScaleFactor = (Double)dataPoint.MarkerScale;
                marker.MarkerSize = new Size((Double)dataPoint.MarkerSize, (Double)dataPoint.MarkerSize);
                marker.Bevel = false;
                marker.MarkerFillColor = dataPoint.MarkerColor;
                marker.Text = labelText;
                marker.TextAlignmentX = AlignmentX.Center;
                marker.TextAlignmentY = AlignmentY.Center;
            }

            ApplyMarkerProperties(dataPoint);

            if ((Boolean)dataPoint.LabelEnabled && !String.IsNullOrEmpty(labelText))
            {
                ApplyLabelProperties(dataPoint);

                if (!Double.IsNaN(dataPoint.LabelAngle) && dataPoint.LabelAngle != 0)
                {
                    dataPoint.Marker.LabelAngle = dataPoint.LabelAngle;
                    dataPoint.Marker.TextOrientation = Orientation.Vertical;

                    if (isPositive)
                    {
                        dataPoint.Marker.TextAlignmentX = AlignmentX.Center;
                        dataPoint.Marker.TextAlignmentY = AlignmentY.Top;
                    }
                    else
                    {
                        dataPoint.Marker.TextAlignmentX = AlignmentX.Center;
                        dataPoint.Marker.TextAlignmentY = AlignmentY.Bottom;
                    }

                    dataPoint.Marker.LabelStyle = (LabelStyles)dataPoint.LabelStyle;
                }

                dataPoint.Marker.CreateVisual();

                if (Double.IsNaN(dataPoint.LabelAngle) || dataPoint.LabelAngle == 0)
                {
                    dataPoint.Marker.TextAlignmentX = AlignmentX.Center;

                    if (isPositive)
                    {
                        if (dataPoint.LabelStyle == LabelStyles.OutSide && !dataPoint.IsLabelStyleSet && !dataPoint.Parent.IsLabelStyleSet)
                        {
                            //if (position < dataPoint.Marker.MarkerActualSize.Height || dataPoint.LabelStyle == LabelStyles.Inside)                            
                            if (yPosition - dataPoint.Marker.MarkerActualSize.Height - dataPoint.Marker.MarkerSize.Height / 2 < 0 || dataPoint.LabelStyle == LabelStyles.Inside)
                                dataPoint.Marker.TextAlignmentY = AlignmentY.Bottom;
                            else
                                dataPoint.Marker.TextAlignmentY = AlignmentY.Top;
                        }
                        else if (dataPoint.LabelStyle == LabelStyles.OutSide)
                            dataPoint.Marker.TextAlignmentY = AlignmentY.Top;
                        else
                            dataPoint.Marker.TextAlignmentY = AlignmentY.Bottom;
                    }
                    else
                    {
                        if (dataPoint.LabelStyle == LabelStyles.OutSide && !dataPoint.IsLabelStyleSet && !dataPoint.Parent.IsLabelStyleSet)
                        {
                            if (yPosition + dataPoint.Marker.MarkerActualSize.Height + dataPoint.Marker.MarkerSize.Height / 2 > chart.PlotArea.BorderElement.Height || dataPoint.LabelStyle == LabelStyles.Inside)
                                dataPoint.Marker.TextAlignmentY = AlignmentY.Top;
                            else
                                dataPoint.Marker.TextAlignmentY = AlignmentY.Bottom;
                        }
                        else if (dataPoint.LabelStyle == LabelStyles.OutSide)
                            dataPoint.Marker.TextAlignmentY = AlignmentY.Bottom;
                        else
                            dataPoint.Marker.TextAlignmentY = AlignmentY.Top;
                    }
                }
            }

            dataPoint.Marker.Control = chart;

            dataPoint.Marker.Tag = new ElementData() { Element = dataPoint };

            dataPoint.Marker.CreateVisual();

            dataPoint.Marker.Visual.Opacity = (Double)dataPoint.Opacity * (Double)dataPoint.Parent.Opacity;

            ApplyDefaultInteractivityForMarker(dataPoint);

            //dataPoint.AttachEvent2DataPointVisualFaces(dataPoint);
            ObservableObject.AttachEvents2Visual(dataPoint, dataPoint, dataPoint.Marker.Visual);
            //dataPoint.AttachEvent2DataPointVisualFaces(dataPoint.Parent);
            ObservableObject.AttachEvents2Visual(dataPoint.Parent, dataPoint, dataPoint.Marker.Visual);
            dataPoint._parsedToolTipText = dataPoint.TextParser(dataPoint.ToolTipText);
            
            if(!chart.IndicatorEnabled)
                dataPoint.AttachToolTip(chart, dataPoint, dataPoint.Marker.Visual);
            
            dataPoint.AttachHref(chart, dataPoint.Marker.Visual, dataPoint.Href, (HrefTargets)dataPoint.HrefTarget);
            dataPoint.SetCursor2DataPointVisualFaces();
            return dataPoint.Marker;
        }

        /// <summary>
        /// Get marker for DataPoint
        /// </summary>
        /// <param name="chart"></param>
        /// <param name="plotWidth"></param>
        /// <param name="plotHeight"></param>
        /// <param name="yPosition"></param>
        /// <param name="dataPoint"></param>
        /// <param name="isPositionTop"></param>
        /// <returns></returns>
        private static Marker GetMarkerForDataPoint(Chart chart, Double plotWidth, Double plotHeight, Double yPosition, DataPoint dataPoint, Boolean isPositionTop)
        {
            String labelText = (Boolean)dataPoint.LabelEnabled ? dataPoint.TextParser(dataPoint.LabelText) : "";

            Boolean markerBevel = false;

            Marker marker = dataPoint.Marker;

            if (marker != null && marker.Visual != null)
            {
                Panel parent = marker.Visual.Parent as Panel;

                if (parent != null)
                    parent.Children.Remove(marker.Visual);
            }

            dataPoint.Marker = new Marker((MarkerTypes)dataPoint.MarkerType,
                (Double)dataPoint.MarkerScale,
                new Size((Double)dataPoint.MarkerSize, (Double)dataPoint.MarkerSize),
                markerBevel,
                dataPoint.MarkerColor,
                labelText);

            LineChart.ApplyMarkerProperties(dataPoint);

            if ((Boolean)dataPoint.LabelEnabled && !String.IsNullOrEmpty(labelText))
            {
                LineChart.ApplyLabelProperties(dataPoint);

                if (!Double.IsNaN(dataPoint.LabelAngle) && dataPoint.LabelAngle != 0)
                {
                    dataPoint.Marker.LabelAngle = dataPoint.LabelAngle;
                    dataPoint.Marker.TextOrientation = Orientation.Vertical;

                    SetPositionForDataPointLabel(chart, isPositionTop, dataPoint, yPosition);

                    dataPoint.Marker.LabelStyle = (LabelStyles)dataPoint.LabelStyle;
                }

                dataPoint.Marker.CreateVisual();

                if (Double.IsNaN(dataPoint.LabelAngle) || dataPoint.LabelAngle == 0)
                {
                    dataPoint.Marker.TextAlignmentX = AlignmentX.Center;

                    SetPositionForDataPointLabel(chart, isPositionTop, dataPoint, yPosition);
                }
            }

            dataPoint.Marker.Control = chart;

            dataPoint.Marker.Tag = new ElementData() { Element = dataPoint };

            dataPoint.Marker.CreateVisual();

            dataPoint.Marker.Visual.Opacity = (Double)dataPoint.Opacity * (Double)dataPoint.Parent.Opacity;

            LineChart.ApplyDefaultInteractivityForMarker(dataPoint);

            ObservableObject.AttachEvents2Visual(dataPoint, dataPoint, dataPoint.Marker.Visual);
            ObservableObject.AttachEvents2Visual(dataPoint.Parent, dataPoint, dataPoint.Marker.Visual);
            dataPoint._parsedToolTipText = dataPoint.TextParser(dataPoint.ToolTipText);
            dataPoint.AttachToolTip(chart, dataPoint, dataPoint.Marker.Visual);
            dataPoint.AttachHref(chart, dataPoint.Marker.Visual, dataPoint.Href, (HrefTargets)dataPoint.HrefTarget);
            dataPoint.SetCursor2DataPointVisualFaces();
            return dataPoint.Marker;
        }

//.........这里部分代码省略.........
                if (absoluteSum != 0)
                {
                    if (plotGroup.AxisY.Logarithmic)
                    {
                        percentYValue = Math.Log((dataPoint.InternalYValue / absoluteSum * 100), plotGroup.AxisY.LogarithmBase);
                    }
                    else
                        percentYValue = (dataPoint.InternalYValue / absoluteSum * 100);
                }
            }
            else
                percentYValue = dataPoint.InternalYValue;


            if (isPositive)
            {
                if(plotGroup.AxisY.Logarithmic)
                    right = ColumnChart.CalculatePositionOfDataPointForLogAxis(dataPoint, columnCanvas.Width, plotGroup, listOfDataPointsInXValue, absoluteSum);
                else
                    right = Graphics.ValueToPixelPosition(0, columnCanvas.Width, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, percentYValue + prevSum);
            }
            else
                left = Graphics.ValueToPixelPosition(0, columnCanvas.Width, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, percentYValue + prevSum);

            Double barWidth = Math.Abs(right - left);

            prevSum += percentYValue;
            // barParams.Size = new Size(barWidth, finalHeight);

            Faces bar;
            Panel barVisual = null;

            if ((dataPoint.Chart as Chart).View3D)
            {
                bar = ColumnChart.Get3DColumn(dataPoint, barWidth, finalHeight, depth3d, dataPoint.Color, null, null, null, (Boolean)dataPoint.LightingEnabled,
                    (BorderStyles)dataPoint.BorderStyle, dataPoint.BorderColor, dataPoint.BorderThickness.Left);
               
                barVisual = bar.Visual as Panel;
                barVisual.SetValue(Canvas.ZIndexProperty, GetStackedBarZIndex(chart.ChartArea.PlotAreaCanvas.Height, left, top, columnCanvas.Width, columnCanvas.Height, (dataPoint.InternalYValue > 0), PositiveOrNegativeZIndex));

                dataPoint.Faces = bar;
                if (!VisifireControl.IsMediaEffectsEnabled)
                    ColumnChart.ApplyOrRemoveShadow4XBAP(dataPoint, true, false);
            }
            else
            {
                bar = ColumnChart.Get2DColumn(dataPoint, barWidth, finalHeight, true, isTopOFStack);
                barVisual = bar.Visual as Panel;
                dataPoint.Faces = bar;
            }

            if (VisifireControl.IsMediaEffectsEnabled)
                ApplyOrRemoveShadow(chart, dataPoint);

            dataPoint.Faces.LabelCanvas = labelCanvas;

            barVisual.SetValue(Canvas.LeftProperty, left);
            barVisual.SetValue(Canvas.TopProperty, top);

            columnCanvas.Children.Add(barVisual);

            dataPoint.IsTopOfStack = isTopOFStack;

            CreateOrUpdateMarker4HorizontalChart(dataPoint.Chart as Chart, labelCanvas, dataPoint, left, top, isPositive, depth3d);

            //labelCanvas.Children.Add(CreateMarker(chart, barParams, dataPoint, left, top));

            // Apply animation
            if (animationEnabled)
            {
                if (dataPoint.Parent.Storyboard == null)
                    dataPoint.Parent.Storyboard = new Storyboard();

                currentDataSeries = dataPoint.Parent;

                // Apply animation to the data points dataSeriesIndex.e to the rectangles that form the columns
                dataPoint.Parent.Storyboard = ApplyStackedBarChartAnimation(barVisual, dataPoint.Parent.Storyboard, animationBeginTime, 0.5);
            }

            if (isPositive)
                left = right;
            else
                right = left;

            if (isPositive)
                dataPoint._visualPosition = new Point(right, top + finalHeight / 2);
            else
                dataPoint._visualPosition = new Point(left, top + finalHeight / 2);

            dataPoint.Faces.Visual.Opacity = (Double)dataPoint.Opacity * (Double)dataPoint.Parent.Opacity;
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint);
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint.Parent);
            dataPoint._parsedToolTipText = dataPoint.TextParser(dataPoint.ToolTipText);
            
            if(!chart.IndicatorEnabled)
                dataPoint.AttachToolTip(chart, dataPoint, dataPoint.Faces.Visual);
            dataPoint.AttachHref(chart, dataPoint.Faces.Visual, dataPoint.Href, (HrefTargets)dataPoint.HrefTarget);
            
            dataPoint.SetCursor2DataPointVisualFaces();
        }

//.........这里部分代码省略.........
            }
            
            Double columnWidth = Math.Abs(left - right);

            if (columnWidth < dataPoint.Parent.MinPointHeight)
            {
                if (dataPoint.InternalYValue == 0)
                {
                    if (plotGroup.AxisY.InternalAxisMaximum <= 0)
                        left -= (dataPoint.Parent.MinPointHeight - columnWidth);
                    else
                       right += (dataPoint.Parent.MinPointHeight - columnWidth);
                }
                else if (isPositive)
                    right += (dataPoint.Parent.MinPointHeight - columnWidth);
                else
                    left -= (dataPoint.Parent.MinPointHeight - columnWidth);

                columnWidth = dataPoint.Parent.MinPointHeight;
            }

            Double columnHeight = CalculateHeightOfEachColumn(ref top, heightPerBar, height);

            if (columnHeight < 0)
                return;
            
            Faces column;
            Panel columnVisual = null;

            if (chart.View3D)
            {   
                // column = Get3DBar(barParams);
                column = ColumnChart.Get3DColumn(dataPoint, columnWidth, columnHeight, depth3d, dataPoint.Color, 
                    null, null, null, (Boolean)dataPoint.LightingEnabled, (BorderStyles)dataPoint.BorderStyle, 
                    dataPoint.BorderColor, dataPoint.BorderThickness.Left);
              
                columnVisual = column.Visual as Panel;
                columnVisual.SetValue(Canvas.ZIndexProperty, GetBarZIndex(left, top, height, dataPoint.InternalYValue > 0));

                dataPoint.Faces = column;

                if (!VisifireControl.IsMediaEffectsEnabled)
                    ColumnChart.ApplyOrRemoveShadow4XBAP(dataPoint, false, false);

            }
            else
            {   
                // column = Get2DBar(barParams);
                column = ColumnChart.Get2DColumn(dataPoint, columnWidth, columnHeight, false, false);
                columnVisual = column.Visual as Panel;

                dataPoint.Faces = column;
            }

            if (VisifireControl.IsMediaEffectsEnabled)
                ApplyOrRemoveShadow(chart, dataPoint);

            dataPoint.Faces.LabelCanvas = labelCanvas;
            dataPoint.Parent.Faces = new Faces() { Visual = columnCanvas, LabelCanvas = labelCanvas };

            columnVisual.SetValue(Canvas.LeftProperty, left);
            columnVisual.SetValue(Canvas.TopProperty, top);

            columnCanvas.Children.Add(columnVisual);

            dataPoint.IsTopOfStack = true;

            CreateOrUpdateMarker4HorizontalChart(chart, labelCanvas, dataPoint, left, top, isPositive, depth3d);

            if (isPositive)
                dataPoint._visualPosition = new Point(right, top + columnHeight / 2);
            else
                dataPoint._visualPosition = new Point(left, top + columnHeight / 2);

            dataPoint.Faces.LabelCanvas = labelCanvas;

            // Apply animation
            if (animationEnabled)
            {
                if (dataPoint.Parent.Storyboard == null)
                    dataPoint.Parent.Storyboard = new Storyboard();

                currentDataSeries = dataPoint.Parent;

                // Apply animation to the bars 
                dataPoint.Parent.Storyboard = ApplyBarChartAnimation(columnVisual, dataPoint.Parent.Storyboard, isPositive);
            }

            dataPoint.Faces.Visual.Opacity = (Double)dataPoint.Opacity * (Double)dataPoint.Parent.Opacity;
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint);
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint.Parent);
            dataPoint._parsedToolTipText = dataPoint.TextParser(dataPoint.ToolTipText);
            //dataPoint.AttachToolTip(chart, dataPoint, dataPoint.Faces.VisualComponents);
            //dataPoint.AttachHref(chart, dataPoint.Faces.VisualComponents, dataPoint.Href, (HrefTargets)dataPoint.HrefTarget);
            if(!chart.IndicatorEnabled)
                dataPoint.AttachToolTip(chart, dataPoint, dataPoint.Faces.Visual);
            dataPoint.AttachHref(chart, dataPoint.Faces.Visual, dataPoint.Href, (HrefTargets)dataPoint.HrefTarget);

            dataPoint.SetCursor2DataPointVisualFaces();
        }

        /// <summary>
        /// Create or update a CandleStick
        /// </summary>
        /// <param name="dataPoint"></param>
        /// <param name="seriesCanvas"></param>
        /// <param name="labelCanvas"></param>
        /// <param name="canvasWidth"></param>
        /// <param name="canvasHeight"></param>
        /// <param name="dataPointWidth"></param>
        internal static void CreateOrUpdateACandleStick(DataPoint dataPoint, Canvas candleStickCanvas, Canvas labelCanvas, Double canvasWidth, Double canvasHeight, Double dataPointWidth)
        {
            Faces dpFaces = dataPoint.Faces;

            // Remove preexisting dataPoint visual and label visual
            if (dpFaces != null && dpFaces.Visual != null && candleStickCanvas == dpFaces.Visual.Parent)
            {
                candleStickCanvas.Children.Remove(dataPoint.Faces.Visual);
                //dpFaces = null;
            }

            // Remove preexisting label visual
            if(dataPoint.LabelVisual != null && dataPoint.LabelVisual.Parent == labelCanvas)
            {
                labelCanvas.Children.Remove(dataPoint.LabelVisual);
                //dataPoint.LabelVisual = null;
            }

            dataPoint.Faces = null;

            if (dataPoint.YValues == null || dataPoint.Enabled == false)
                return;

            // Creating ElementData for Tag
            ElementData tagElement = new ElementData() { Element = dataPoint };

            // Initialize DataPoint faces
            dataPoint.Faces = new Faces();
            
            // Create DataPoint Visual
            Canvas dataPointVisual = new Canvas();
            dataPoint.Faces.Visual = dataPointVisual;

            // Create High and Low Line
            Line highLowLine = new Line() { Tag = tagElement };
            
            dataPoint.Faces.Parts.Add(highLowLine);
            dataPoint.Faces.VisualComponents.Add(highLowLine);
            dataPointVisual.Children.Add(highLowLine);

            /* Create Open-Close Rectangle
             * Math.Max is used to make sure that the rectangle is visible 
             * even when the difference between high and low is 0 */
            Rectangle openCloseRect = new Rectangle() { Tag = tagElement };
            
            dataPoint.Faces.VisualComponents.Add(openCloseRect);
            dataPoint.Faces.BorderElements.Add(openCloseRect);
            dataPointVisual.Children.Add(openCloseRect);

            UpdateYValueAndXValuePosition(dataPoint, canvasWidth, canvasHeight, dataPointWidth);

            // Add dataPointVisual to seriesCanvas
            candleStickCanvas.Children.Add(dataPointVisual);

            CreateAndPositionLabel(labelCanvas, dataPoint);

            dataPointVisual.Opacity = dataPoint.Parent.Opacity * dataPoint.Opacity;

            Chart chart = dataPoint.Chart as Chart;
            dataPoint.SetCursor2DataPointVisualFaces();
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint);
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint.Parent);
            dataPoint._parsedToolTipText = dataPoint.TextParser(dataPoint.ToolTipText);
            dataPoint.AttachToolTip(chart, dataPoint, dataPoint.Faces.VisualComponents);
            dataPoint.AttachHref(chart, dataPoint.Faces.VisualComponents, dataPoint.Href, (HrefTargets)dataPoint.HrefTarget);
        }

        private static void UpdateDataPoint(DataPoint dataPoint, VcProperties property, object newValue, Boolean isAxisChanged)
        {
            Chart chart = dataPoint.Chart as Chart;
            DataSeries dataSeries = dataPoint.Parent;
            PlotGroup plotGroup = dataSeries.PlotGroup;
            Faces dsFaces = dataSeries.Faces;
            Faces dpFaces = dataPoint.Faces;
            Double dataPointWidth;

            if (dsFaces != null)
                ColumnChart.UpdateParentVisualCanvasSize(chart, dsFaces.Visual as Canvas);

            if (dpFaces != null && dpFaces.Visual != null)
                dataPointWidth = dpFaces.Visual.Width;
            else if (dsFaces == null)
                return;
            else
                dataPointWidth = CalculateDataPointWidth(dsFaces.Visual.Width, dsFaces.Visual.Height, chart);
            
            switch (property)
            {   
                case VcProperties.BorderThickness:
                      ApplyOrUpdateBorder(dataPoint, dataPointWidth);
                      ApplyOrRemoveBevel(dataPoint, dataPointWidth);
                    break;

                case VcProperties.BorderStyle:
                    ApplyOrUpdateBorder(dataPoint, dataPointWidth);
                    break;

                case VcProperties.BorderColor:
                    ApplyOrUpdateBorder(dataPoint, dataPointWidth);
                    break;

                case VcProperties.Bevel:
                    ApplyOrRemoveBevel(dataPoint, dataPointWidth);
                    break;

                case VcProperties.Color:
                case VcProperties.PriceUpColor:
                case VcProperties.PriceDownColor:
                    ApplyOrUpdateColorForACandleStick(dataPoint);
                    break;
                    
                case VcProperties.Cursor:
                    dataPoint.SetCursor2DataPointVisualFaces();
                    break;

                case VcProperties.Href:
                    dataPoint.SetHref2DataPointVisualFaces();
                    break;

                case VcProperties.HrefTarget:
                    dataPoint.SetHref2DataPointVisualFaces();
                    break;

                case VcProperties.LabelBackground:
                case VcProperties.LabelEnabled:
                case VcProperties.LabelFontColor:
                case VcProperties.LabelFontFamily:
                case VcProperties.LabelFontStyle:
                case VcProperties.LabelFontSize:
                case VcProperties.LabelFontWeight:
                case VcProperties.LabelStyle:
                case VcProperties.LabelText:
                    CreateAndPositionLabel(dsFaces.LabelCanvas, dataPoint);
                    break;


                case VcProperties.LegendText:
                    chart.InvokeRender();
                    break;

                case VcProperties.LightingEnabled:
                    ApplyOrUpdateColorForACandleStick(dataPoint);
                    break;

                //case VcProperties.MarkerBorderColor:
                //case VcProperties.MarkerBorderThickness:
                //case VcProperties.MarkerColor:
                //case VcProperties.MarkerEnabled:
                //case VcProperties.MarkerScale:
                //case VcProperties.MarkerSize:
                //case VcProperties.MarkerType:
                case VcProperties.ShadowEnabled:
                    ApplyOrRemoveShadow(dataPoint, dataPointWidth);
                    break;

                case VcProperties.Opacity:
                    dpFaces.Visual.Opacity = dataSeries.Opacity * dataPoint.Opacity;
                    break;

                case VcProperties.ShowInLegend:
                    chart.InvokeRender();
                    break;
                case VcProperties.ToolTipText:
                    dataPoint._parsedToolTipText = dataPoint.TextParser(dataPoint.ToolTipText);
                    break;

                case VcProperties.XValueFormatString:
//.........这里部分代码省略.........

//.........这里部分代码省略.........
            }
            else
            {   
                bottom = Graphics.ValueToPixelPosition(parentCanvas.Height, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, Double.IsNaN(dataPoint.InternalYValue) ? 0 : dataPoint.InternalYValue);
                top = Graphics.ValueToPixelPosition(parentCanvas.Height, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, limitingYValue);

                if (plotGroup.AxisY.AxisMinimum != null && limitingYValue>0 && dataPoint.InternalYValue < limitingYValue && chart.View3D)
                {
                    top = bottom = bottom + 100;
                }
            }

            columnHeight = Math.Abs(top - bottom);

            if(columnHeight < dataPoint.Parent.MinPointHeight)
            {
                if (dataPoint.InternalYValue == 0)
                {   
                    if (plotGroup.AxisY.InternalAxisMaximum <= 0)
                        bottom += (dataPoint.Parent.MinPointHeight - columnHeight);
                    else
                        top -= (dataPoint.Parent.MinPointHeight - columnHeight);
                }
                else if (isPositive)
                    top -= (dataPoint.Parent.MinPointHeight - columnHeight);
                else
                    bottom += (dataPoint.Parent.MinPointHeight - columnHeight);
                    
                columnHeight = dataPoint.Parent.MinPointHeight;
            }

            columnVisualSize = new Size(widthOfAcolumn, columnHeight);

            Faces columnFaces = null;
            Panel columnVisual = null;

            if (chart.View3D)
            {
                columnFaces = Get3DColumn(dataPoint, widthOfAcolumn, columnHeight, depth3D, dataPoint.Color, null, null, null, (Boolean)dataPoint.LightingEnabled,
                    (BorderStyles)dataPoint.BorderStyle, dataPoint.BorderColor, dataPoint.BorderThickness.Left);
                columnVisual = columnFaces.Visual as Panel;
                columnVisual.SetValue(Canvas.ZIndexProperty, GetColumnZIndex(left, top, (dataPoint.InternalYValue > 0)));
                
                dataPoint.Faces = columnFaces;

                if (!VisifireControl.IsMediaEffectsEnabled)
                    ColumnChart.ApplyOrRemoveShadow4XBAP(dataPoint, false, false);

            }   
            else
            {   
                columnFaces = Get2DColumn(dataPoint, widthOfAcolumn, columnHeight, false, false);
                columnVisual = columnFaces.Visual as Panel;
            }

            dataPoint.Faces = columnFaces;

            if (VisifireControl.IsMediaEffectsEnabled)
                ColumnChart.ApplyOrRemoveShadow(chart, dataPoint);

            columnVisual.SetValue(Canvas.LeftProperty, left);
            columnVisual.SetValue(Canvas.TopProperty, top);

            parentCanvas.Children.Add(columnVisual);

            dataPoint.IsTopOfStack = true;

            CreateOrUpdateMarker4VerticalChart(dataPoint, labelCanvas, columnVisualSize, left, top);

            if(isPositive)
                dataPoint._visualPosition = new Point(left + columnVisualSize.Width / 2, top);
            else
                dataPoint._visualPosition = new Point(left + columnVisualSize.Width / 2, bottom);

            // Apply animation
            if (animationEnabled)
            {
                if (dataPoint.Parent.Storyboard == null)
                    dataPoint.Parent.Storyboard = new Storyboard();

                currentDataSeries = dataPoint.Parent;
                //dataPoint.Parent.Storyboard.Stop();

                // Apply animation to the data points dataSeriesIndex.e to the rectangles that form the columns
                dataPoint.Parent.Storyboard = ApplyColumnChartAnimation(currentDataSeries, columnVisual, dataPoint.Parent.Storyboard, isPositive, 1, new Double[] { 0, 1 }, new Double[] { 0, 1 }, dataPoint.Parent.RenderAs);

            }

            dataPoint.Faces.Visual.Opacity = (Double)dataPoint.Opacity * (Double)dataPoint.Parent.Opacity;
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint);
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint.Parent);
            dataPoint._parsedToolTipText = dataPoint.TextParser(dataPoint.ToolTipText);
            if(!chart.IndicatorEnabled)
                dataPoint.AttachToolTip(chart, dataPoint, dataPoint.Faces.Visual);
            //dataPoint.AttachToolTip(chart, dataPoint, dataPoint.Faces.VisualComponents);
            dataPoint.AttachHref(chart, dataPoint.Faces.Visual, dataPoint.Href, (HrefTargets)dataPoint.HrefTarget);
            //dataPoint.AttachHref(chart, dataPoint.Faces.VisualComponents, dataPoint.Href, (HrefTargets)dataPoint.HrefTarget);
            dataPoint.SetCursor2DataPointVisualFaces();
            chart._toolTip.Hide();
        }

        internal static void CreateOrUpdateAStockDataPoint(DataPoint dataPoint, Canvas stockChartCanvas, Canvas labelCanvas, Double canvasWidth, Double canvasHeight, Double dataPointWidth)
        {
            Faces dpFaces = dataPoint.Faces;

            // Remove preexisting dataPoint visual and label visual
            if (dpFaces != null && dpFaces.Visual != null && stockChartCanvas == dpFaces.Visual.Parent)
            {   
                stockChartCanvas.Children.Remove(dataPoint.Faces.Visual);
            }

            // Remove preexisting label visual
            if (dataPoint.LabelVisual != null && dataPoint.LabelVisual.Parent == labelCanvas)
            {
                labelCanvas.Children.Remove(dataPoint.LabelVisual);
            }

            dataPoint.Faces = null;

            if (dataPoint.YValues == null || dataPoint.Enabled == false)
                return;

            // Initialize DataPoint faces
            dataPoint.Faces = new Faces();
            
            // Creating ElementData for Tag
            ElementData tagElement = new ElementData() { Element = dataPoint };

            // Create DataPoint Visual
            Canvas dataPointVisual = new Canvas();          // Create DataPoint Visual
            Line highLow = new Line(){ Tag = tagElement };  // Create High and Low Line
            Line closeLine = new Line(){ Tag = tagElement };    // Create Close Line
            Line openLine = new Line() { Tag = tagElement };    // Create Close Line

            dataPoint.Faces.Visual = dataPointVisual;

            // Add VisualComponents
            dataPoint.Faces.VisualComponents.Add(highLow);
            dataPoint.Faces.VisualComponents.Add(openLine);
            dataPoint.Faces.VisualComponents.Add(closeLine);

            // Add Border elements
            dataPoint.Faces.BorderElements.Add(highLow);
            dataPoint.Faces.BorderElements.Add(openLine);
            dataPoint.Faces.BorderElements.Add(closeLine);

            dataPoint.Faces.Visual = dataPointVisual;
            stockChartCanvas.Children.Add(dataPointVisual);
            
            UpdateYValueAndXValuePosition(dataPoint, canvasWidth, canvasHeight, dataPointWidth);
            ApplyBorderProperties(dataPoint, highLow, openLine, closeLine, dataPointWidth);
            ApplyOrUpdateColorForAStockDp(dataPoint, highLow, openLine, closeLine);
                        
            // Add VisualComponents to visual
            dataPointVisual.Children.Add(highLow);
            dataPointVisual.Children.Add(openLine);
            dataPointVisual.Children.Add(closeLine);

            // Attach tooltip, events, href etc
            dataPointVisual.Opacity = dataPoint.Parent.Opacity * dataPoint.Opacity;
            Chart chart = dataPoint.Chart as Chart;
            dataPoint.SetCursor2DataPointVisualFaces();
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint);
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint.Parent);
            dataPoint._parsedToolTipText = dataPoint.TextParser(dataPoint.ToolTipText);
            dataPoint.AttachToolTip(chart, dataPoint, dataPoint.Faces.VisualComponents);
            dataPoint.AttachHref(chart, dataPoint.Faces.VisualComponents, dataPoint.Href, (HrefTargets)dataPoint.HrefTarget);
        }

//.........这里部分代码省略.........
                            (dataPoint.Faces.Area3DLeftFace.LeftFace as Path).Opacity = opacity;

                        if (dataPoint.Faces.Area3DRightTopFace != null)
                            (dataPoint.Faces.Area3DRightTopFace.TopFace as Path).Opacity = opacity;

                        if (dataPoint.Faces.Area3DLeftTopFace != null)
                            (dataPoint.Faces.Area3DLeftTopFace.TopFace as Path).Opacity = opacity;

                        if (dataPoint.Faces.Area3DRightFace != null)
                            (dataPoint.Faces.Area3DRightFace.RightFace as Path).Opacity = opacity;
                    }

                    break;
                case VcProperties.BorderColor:
                case VcProperties.BorderStyle:
                case VcProperties.BorderThickness:
                    if (faces != null)
                    {
                        if (dataPoint.Faces.Area3DLeftFace != null)
                            ApplyBorderProperties(dataPoint.Faces.Area3DLeftFace.LeftFace as Path, dataSeries);

                        if (dataPoint.Faces.Area3DRightTopFace != null)
                            ApplyBorderProperties(dataPoint.Faces.Area3DRightTopFace.TopFace as Path, dataSeries);

                        if (dataPoint.Faces.Area3DLeftTopFace != null)
                            ApplyBorderProperties(dataPoint.Faces.Area3DLeftTopFace.TopFace as Path, dataSeries);

                        if (dataPoint.Faces.Area3DRightFace != null)
                            ApplyBorderProperties(dataPoint.Faces.Area3DRightFace.RightFace as Path, dataSeries);
                    }

                    break;
                case VcProperties.Cursor:
                    dataPoint.SetCursor2DataPointVisualFaces();
                    break;

                case VcProperties.Href:
                case VcProperties.HrefTarget:
                    dataPoint.SetHref2DataPointVisualFaces();
                    break;

                case VcProperties.LabelBackground:
                    LineChart.CreateMarkerAForLineDataPoint(dataPoint, width, height, ref labelCanvas, out xPosition, out yPosition);
                    marker.TextBackground = dataPoint.LabelBackground;
                    break;

                case VcProperties.LabelEnabled:
                    LineChart.CreateMarkerAForLineDataPoint(dataPoint, width, height, ref labelCanvas, out xPosition, out yPosition);
                    break;

                case VcProperties.LabelFontColor:
                    marker.FontColor = dataPoint.LabelFontColor;
                    break;

                case VcProperties.LabelFontFamily:
                    LineChart.CreateMarkerAForLineDataPoint(dataPoint, width, height, ref labelCanvas, out xPosition, out yPosition);
                    // marker.FontFamily = dataPoint.LabelFontFamily;
                    break;

                case VcProperties.LabelFontStyle:
                    LineChart.CreateMarkerAForLineDataPoint(dataPoint, width, height, ref labelCanvas, out xPosition, out yPosition);

                    //marker.FontStyle = (FontStyle) dataPoint.LabelFontStyle;
                    break;

                case VcProperties.LabelFontSize:

        private static void UpdateDataPoint(DataPoint dataPoint, VcProperties property, object newValue, Boolean isAxisChanged)
        {
            Chart chart = dataPoint.Chart as Chart;

            if (chart == null)
                return;

            DataSeries dataSeries = dataPoint.Parent;
            PlotGroup plotGroup = dataSeries.PlotGroup;
            Faces dsFaces = dataSeries.Faces;
            Faces dpFaces = dataPoint.Faces;
            
            Double dataPointWidth;

            if (dsFaces != null)
                ColumnChart.UpdateParentVisualCanvasSize(chart, dsFaces.Visual as Canvas);

            if (dpFaces != null && dpFaces.Visual != null)
                dataPointWidth = dpFaces.Visual.Width;
            else if (dsFaces == null)
                return;
            else
                dataPointWidth = CandleStick.CalculateDataPointWidth(dsFaces.Visual.Width, dsFaces.Visual.Height, chart);

            if (property == VcProperties.Enabled || (dpFaces == null && (property == VcProperties.XValue || property == VcProperties.YValues)))
            {
                CreateOrUpdateAStockDataPoint(dataPoint, dsFaces.Visual as Canvas, dsFaces.LabelCanvas, dsFaces.Visual.Width, dsFaces.Visual.Height, dataPointWidth);
                return;
            }

            if (dpFaces == null)
                return;

            Canvas dataPointVisual = dpFaces.Visual as Canvas;       // DataPoint visual canvas
            Line highLowLine = dpFaces.VisualComponents[0] as Line;  // HighLowline
            Line closeLine = dpFaces.VisualComponents[1] as Line;    // Closeline
            Line openLine = dpFaces.VisualComponents[2] as Line;     // Openline

            switch (property)
            {   
                case VcProperties.BorderThickness:
                case VcProperties.BorderStyle:
                    ApplyBorderProperties(dataPoint, highLowLine, openLine, closeLine, dataPointWidth);
                    break;

                case VcProperties.Color:
                    ApplyOrUpdateColorForAStockDp(dataPoint, highLowLine, openLine, closeLine);
                    break;

                case VcProperties.Cursor:
                    dataPoint.SetCursor2DataPointVisualFaces();
                    break;

                case VcProperties.Href:
                    dataPoint.SetHref2DataPointVisualFaces();
                    break;

                case VcProperties.HrefTarget:
                    dataPoint.SetHref2DataPointVisualFaces();
                    break;

                case VcProperties.LabelBackground:
                case VcProperties.LabelEnabled:
                case VcProperties.LabelFontColor:
                case VcProperties.LabelFontFamily:
                case VcProperties.LabelFontStyle:
                case VcProperties.LabelFontSize:
                case VcProperties.LabelFontWeight:
                case VcProperties.LabelStyle:
                case VcProperties.LabelText:
                    CandleStick.CreateAndPositionLabel(dsFaces.LabelCanvas, dataPoint);
                    break;

                case VcProperties.LegendText:
                    chart.InvokeRender();
                    break;

                case VcProperties.LightingEnabled:
                    ApplyOrUpdateColorForAStockDp(dataPoint, highLowLine, openLine, closeLine);
                    break;

                //case VcProperties.MarkerBorderColor:
                //case VcProperties.MarkerBorderThickness:
                //case VcProperties.MarkerColor:
                //case VcProperties.MarkerEnabled:
                //case VcProperties.MarkerScale:
                //case VcProperties.MarkerSize:
                //case VcProperties.MarkerType:
                case VcProperties.ShadowEnabled:
                    ApplyOrUpdateShadow(dataPoint, dataPointVisual, highLowLine, openLine, closeLine, dataPointWidth);
                    break;

                case VcProperties.Opacity:
                    dpFaces.Visual.Opacity = (Double)dataSeries.Opacity * (Double)dataPoint.Opacity;
                    break;

                case VcProperties.ShowInLegend:
                    chart.InvokeRender();
                    break;

//.........这里部分代码省略.........

//.........这里部分代码省略.........
            if (Double.IsNaN(dataPoint.InternalYValue) || (dataPoint.Enabled == false))
                return;

            Chart chart = dataPoint.Chart as Chart;

            PlotGroup plotGroup = dataPoint.Parent.PlotGroup;

            Canvas dataPointVisual = new Canvas();

            Faces bubbleFaces = new Faces();

            Double xPosition = Graphics.ValueToPixelPosition(0, plotWidth, (Double)plotGroup.AxisX.InternalAxisMinimum, (Double)plotGroup.AxisX.InternalAxisMaximum, dataPoint.InternalXValue);
            Double yPosition = Graphics.ValueToPixelPosition(plotHeight, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, dataPoint.InternalYValue);

            Brush markerColor = dataPoint.Color;
            markerColor = (chart.View3D ? Graphics.Get3DBrushLighting(markerColor, (Boolean)dataPoint.LightingEnabled) : ((Boolean)dataPoint.LightingEnabled ? Graphics.GetLightingEnabledBrush(markerColor, "Linear", null) : markerColor));
            
            String labelText = (Boolean)dataPoint.LabelEnabled ? dataPoint.TextParser(dataPoint.LabelText) : "";

            Marker marker = new Marker((MarkerTypes)dataPoint.MarkerType, 1, new Size(6,6), false, markerColor, labelText);
            dataPoint.Marker = marker;

            ApplyZValue(dataPoint, minimumZVal, maximumZVal, plotWidth, plotHeight);
                       
            marker.ShadowEnabled = (Boolean)dataPoint.ShadowEnabled;

            if (dataPoint.BorderColor != null)
                marker.BorderColor = dataPoint.BorderColor;

            marker.TextBackground = dataPoint.LabelBackground;
            marker.BorderThickness = ((Thickness)dataPoint.MarkerBorderThickness).Left;
            marker.TextAlignmentX = AlignmentX.Center;
            marker.TextAlignmentY = AlignmentY.Center;
            marker.Tag = new ElementData() { Element = dataPoint };

            Double gap = ((Double)dataPoint.MarkerScale * (Double)dataPoint.MarkerSize) / 2;

            if (!String.IsNullOrEmpty(labelText))
            {
                marker.FontColor = Chart.CalculateDataPointLabelFontColor(chart, dataPoint, dataPoint.LabelFontColor, LabelStyles.OutSide);
                marker.FontSize = (Double)dataPoint.LabelFontSize;
                marker.FontWeight = (FontWeight)dataPoint.LabelFontWeight;
                marker.FontFamily = dataPoint.LabelFontFamily;
                marker.FontStyle = (FontStyle)dataPoint.LabelFontStyle;
                marker.TextBackground = dataPoint.LabelBackground;

                marker.TextAlignmentX = AlignmentX.Center;
                marker.TextAlignmentY = AlignmentY.Center;

                if (!Double.IsNaN(dataPoint.LabelAngle) && dataPoint.LabelAngle != 0)
                {
                    marker.LabelAngle = dataPoint.LabelAngle;
                    marker.TextOrientation = Orientation.Vertical;

                    marker.TextAlignmentX = AlignmentX.Center;
                    marker.TextAlignmentY = AlignmentY.Center;

                    marker.LabelStyle = (LabelStyles)dataPoint.LabelStyle;
                }

                marker.CreateVisual();

                if (Double.IsNaN(dataPoint.LabelAngle) || dataPoint.LabelAngle == 0)
                {
                    if (yPosition - gap < 0 && (yPosition - marker.TextBlockSize.Height / 2) < 0)
                        marker.TextAlignmentY = AlignmentY.Bottom;
                    else if (yPosition + gap > plotHeight && (yPosition + marker.TextBlockSize.Height / 2) > plotHeight)
                        marker.TextAlignmentY = AlignmentY.Top;

                    if (xPosition - gap < 0 && (xPosition - marker.TextBlockSize.Width / 2) < 0)
                        marker.TextAlignmentX = AlignmentX.Right;
                    else if (xPosition + gap > plotWidth && (xPosition + marker.TextBlockSize.Width / 2) > plotWidth)
                        marker.TextAlignmentX = AlignmentX.Left;
                }
            }

            marker.PixelLavelShadow = false; // pixelLavelShadow;
            marker.CreateVisual();

            UpdateBubblePositionAccording2XandYValue(dataPoint, plotWidth, plotHeight, false, 0, 0);
            bubleChartCanvas.Children.Add(marker.Visual);
            
            bubbleFaces.Parts.Add(marker.MarkerShape);
            bubbleFaces.VisualComponents.Add(marker.Visual);
            bubbleFaces.BorderElements.Add(marker.MarkerShape);

            bubbleFaces.Visual = marker.Visual;
            dataPoint.Faces = bubbleFaces;

            dataPoint.Faces.Visual.Opacity = dataPoint.Opacity * dataPoint.Parent.Opacity;
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint);
            dataPoint.AttachEvent2DataPointVisualFaces(dataPoint.Parent);
            dataPoint._parsedToolTipText = dataPoint.TextParser(dataPoint.ToolTipText);
            dataPoint.AttachToolTip(chart, dataPoint, dataPoint.Faces.VisualComponents);
            dataPoint.AttachHref(chart, dataPoint.Faces.VisualComponents, dataPoint.Href, (HrefTargets)dataPoint.HrefTarget);
            dataPoint.SetCursor2DataPointVisualFaces();

            if (dataPoint.Parent.SelectionEnabled && dataPoint.Selected)
                dataPoint.Select(true);
        }