internal static void CreateAlineSeries(DataSeries series, Double width, Double height, Canvas labelCanvas, Canvas chartsCanvas, Boolean animationEnabled)
{
Canvas line2dCanvas;
Canvas line2dLabelCanvas;
// Removing exising line chart for a series
if(series.Faces != null)
{
line2dCanvas = series.Faces.Visual as Canvas;
line2dLabelCanvas = series.Faces.LabelCanvas;
if (line2dCanvas != null)
{
Panel parent = line2dCanvas.Parent as Panel;
if (parent != null)
parent.Children.Remove(line2dCanvas);
}
if (line2dLabelCanvas != null)
{
Panel parent = line2dLabelCanvas.Parent as Panel;
if (parent != null)
parent.Children.Remove(line2dLabelCanvas);
}
}
if ((Boolean)series.Enabled == false)
{
return;
}
Double xPosition, yPosition;
Chart chart = (series.Chart as Chart);
line2dLabelCanvas = new Canvas() { Width = width, Height = height }; // Canvas for placing labels
List<List<DataPoint>> pointCollectionList = new List<List<DataPoint>>();
List<List<DataPoint>> shadowPointCollectionList = new List<List<DataPoint>>();
PlotGroup plotGroup = series.PlotGroup;
LineChartShapeParams lineParams = new LineChartShapeParams();
#region Set LineParms
lineParams.Points = new List<DataPoint>();
lineParams.ShadowPoints = new List<DataPoint>();
lineParams.LineGeometryGroup = new GeometryGroup();
lineParams.LineThickness = (Double)series.LineThickness;
lineParams.LineColor = series.Color;
lineParams.LineStyle = ExtendedGraphics.GetDashArray(series.LineStyle);
lineParams.Lighting = (Boolean)series.LightingEnabled;
lineParams.ShadowEnabled = (Boolean)series.ShadowEnabled && !(series.RenderAs == RenderAs.QuickLine);
lineParams.Opacity = series.Opacity;
if ((Boolean)lineParams.ShadowEnabled)
lineParams.LineShadowGeometryGroup = new GeometryGroup();
#endregion
series.VisualParams = lineParams;
Point variableStartPoint = new Point(), endPoint = new Point();
Boolean IsStartPoint = true;
// Polyline polyline, PolylineShadow;
// Canvas line2dCanvas = new Canvas();
// Canvas lineCanvas;
List<DataPoint> viewPortDataPoints = RenderHelper.GetDataPointsUnderViewPort(series, false);
foreach (DataPoint dataPoint in viewPortDataPoints)
{
if (dataPoint.Enabled == false)
continue;
dataPoint.Marker = null;
dataPoint.LabelVisual = null;
dataPoint.Faces = null;
if (Double.IsNaN(dataPoint.InternalYValue))
{
xPosition = Double.NaN;
yPosition = Double.NaN;
IsStartPoint = true;
}
else
{
//CreateMarkerAForLineDataPoint(dataPoint, width, height, ref line2dLabelCanvas, out xPosition, out yPosition);
CalculateMarkerPosition(dataPoint, width, height, out xPosition, out yPosition);
#region Generate GeometryGroup for line and line shadow
if (IsStartPoint)
{
variableStartPoint = new Point(xPosition, yPosition);
IsStartPoint = !IsStartPoint;
if (lineParams.Points.Count > 0)
{
pointCollectionList.Add(lineParams.Points);
shadowPointCollectionList.Add(lineParams.ShadowPoints);
}
lineParams.Points = new List<DataPoint>();
lineParams.ShadowPoints = new List<DataPoint>();
}
else
{
endPoint = new Point(xPosition, yPosition);
variableStartPoint = endPoint;
IsStartPoint = false;
}
#endregion Generate GeometryGroup for line and line shadow
dataPoint._visualPosition = new Point(xPosition, yPosition);
lineParams.Points.Add(dataPoint);
if (lineParams.ShadowEnabled)
lineParams.ShadowPoints.Add(dataPoint);
}
if (dataPoint.Parent != null && dataPoint.Parent.RenderAs == RenderAs.QuickLine)
dataPoint._parsedToolTipText = dataPoint.TextParser(dataPoint.ToolTipText);
}
pointCollectionList.Add(lineParams.Points);
shadowPointCollectionList.Add(lineParams.ShadowPoints);
series.Faces = new Faces();
Path polyline, PolylineShadow;
line2dCanvas = GetLine2D(series, width, height, line2dLabelCanvas, lineParams, out polyline, out PolylineShadow, pointCollectionList, shadowPointCollectionList);
line2dCanvas.Width = width;
line2dCanvas.Height = height;
series.Faces.Parts.Add(polyline);
if (!VisifireControl.IsMediaEffectsEnabled)
series.Faces.Parts.Add(PolylineShadow);
labelCanvas.Children.Add(line2dLabelCanvas);
chartsCanvas.Children.Add(line2dCanvas);
series.Faces.Visual = line2dCanvas;
series.Faces.LabelCanvas = line2dLabelCanvas;
// Apply animation
if (animationEnabled)
{
if (series.Storyboard == null)
series.Storyboard = new Storyboard();
else
series.Storyboard.Stop();
// Apply animation to the lines
series.Storyboard = ApplyLineChartAnimation(series, line2dCanvas, series.Storyboard, true);
}
// Create Moving Marker
//if (series.MovingMarkerEnabled)
{
Double movingMarkerSize = (Double)series.MarkerSize * (Double)series.MarkerScale * MOVING_MARKER_SCALE;
if (movingMarkerSize < 6)
movingMarkerSize = 6;
Ellipse movingMarker = new Ellipse() { Visibility = Visibility.Collapsed, IsHitTestVisible = false, Height = movingMarkerSize, Width = movingMarkerSize, Fill = lineParams.LineColor };
labelCanvas.Children.Add(movingMarker);
series._movingMarker = movingMarker;
}
//else
//series._movingMarker = null;
}
/// <summary>
/// Create line in 2D and place inside a canvas
/// </summary>
/// <param name="lineParams">Line parameters</param>
/// <param name="line">line path reference</param>
/// <param name="lineShadow">line shadow path reference</param>
/// <returns>Canvas</returns>
private static Canvas GetLine2D(DataSeries tagReference, Double width, Double height, Canvas line2dLabelCanvas, LineChartShapeParams lineParams, out Path line, out Path lineShadow, List<List<DataPoint>> pointCollectionList, List<List<DataPoint>> shadowPointCollectionList)
{
Canvas visual = new Canvas();
line = new Path() { Tag = new ElementData() { Element = tagReference } };
line.StrokeLineJoin = PenLineJoin.Round;
line.StrokeStartLineCap = PenLineCap.Round;
line.StrokeEndLineCap = PenLineCap.Round;
line.Stroke = lineParams.Lighting ? Graphics.GetLightingEnabledBrush(lineParams.LineColor, "Linear", new Double[] { 0.65, 0.55 }) : lineParams.LineColor;
line.StrokeThickness = lineParams.LineThickness;
line.StrokeDashArray = lineParams.LineStyle;
line.Opacity = lineParams.Opacity;
line.Data = GetPathGeometry(tagReference.RenderAs, null, pointCollectionList, false, width, height, line2dLabelCanvas);
if (lineParams.ShadowEnabled)
{
if (!VisifireControl.IsMediaEffectsEnabled)
{
lineShadow = new Path() { IsHitTestVisible = false };
lineShadow.Stroke = Graphics.GetLightingEnabledBrush(new SolidColorBrush(Colors.LightGray), "Linear", new Double[] { 0.65, 0.55 });
lineShadow.StrokeStartLineCap = PenLineCap.Round;
lineShadow.StrokeEndLineCap = PenLineCap.Round;
lineShadow.StrokeLineJoin = PenLineJoin.Round;
lineShadow.StrokeThickness = lineParams.LineThickness;
lineShadow.Opacity = 0.5;
if (lineParams.ShadowEnabled)
lineShadow.Data = GetPathGeometry(tagReference.RenderAs, null, shadowPointCollectionList, true, width, height, null);
TranslateTransform tt = new TranslateTransform() { X = 2, Y = 2 };
lineShadow.RenderTransform = tt;
visual.Children.Add(lineShadow);
}
else
{
#if !WP
visual.Effect = ExtendedGraphics.GetShadowEffect(315, 2.5, 1);
#endif
lineShadow = null;
}
}
else
lineShadow = null;
visual.Children.Add(line);
return visual;
}
