private void TryCasheResources(IRenderContext2D context)
{
_strokePen = _strokePen ?? context.CreatePen(Stroke, AntiAliasing, (float)StrokeThickness, Opacity);
_gainFillBrush = _gainFillBrush ?? context.CreateBrush(GainMarkerFill);
_lossFillBrush = _lossFillBrush ?? context.CreateBrush(LossMarkerFill);
}
/// <summary>
/// Draws the series using the <see cref="IRenderContext2D" /> and the <see cref="IRenderPassData" /> passed in
/// </summary>
/// <param name="renderContext">The render context. This is a graphics object which has methods to draw lines, quads and polygons to the screen</param>
/// <param name="renderPassData">The render pass data. Contains a resampled
/// <see cref="IPointSeries" />, the
/// <see cref="IndexRange" /> of points on the screen
/// and the current YAxis and XAxis
/// <see cref="ICoordinateCalculator{T}" /> to convert data-points to screen points</param>
protected override void Draw(IRenderContext2D renderContext, IRenderPassData renderPassData)
{
base.Draw(renderContext, renderPassData);
// Get the data from RenderPassData. See CustomRenderableSeries article which describes PointSeries relationship to DataSeries
if (renderPassData.PointSeries.Count == 0)
{
return;
}
// Convert to Spline Series
_splineSeries = ComputeSplineSeries(renderPassData.PointSeries, IsSplineEnabled, UpSampleFactor);
// Get the coordinates of the first dataPoint
var point = GetCoordinatesFor(_splineSeries[0].X, _splineSeries[0].Y);
// Create a pen to draw the spline line. Make sure you dispose it!
using (var linePen = renderContext.CreatePen(this.Stroke, this.AntiAliasing, this.StrokeThickness))
{
// Create a line drawing context. Make sure you dispose it!
// NOTE: You can create mutliple line drawing contexts to draw segments if you want
// You can also call renderContext.DrawLine() and renderContext.DrawLines(), but the lineDrawingContext is higher performance
using (var lineDrawingContext = renderContext.BeginLine(linePen, point.X, point.Y))
{
for (int i = 1; i < _splineSeries.Count; i++)
{
point = GetCoordinatesFor(_splineSeries[i].X, _splineSeries[i].Y);
lineDrawingContext.MoveTo(point.X, point.Y);
}
}
}
DrawPointMarkers(renderContext, renderPassData.PointSeries);
}
protected override void Draw(IRenderContext2D renderContext, IRenderPassData renderPassData)
{
var xcal = renderPassData.XCoordinateCalculator;
var ycal = renderPassData.YCoordinateCalculator;
var surf = GetParentSurface();
var xrange = surf.XAxis.VisibleRange.AsDoubleRange();
var yrange = surf.YAxis.VisibleRange.AsDoubleRange();
var area = new Rect(xrange.Min, yrange.Min, xrange.Diff, yrange.Diff);
var pixTakeCare = 3;
var pixSizeX = (TReal)Math.Abs(xcal.GetDataValue(pixTakeCare) - xcal.GetDataValue(0.0));
var pixSizeY = (TReal)Math.Abs(ycal.GetDataValue(0.0) - ycal.GetDataValue(pixTakeCare));
var found = DataSeries.FindInArea(area, pixSizeX, pixSizeY);
var brush = renderContext.CreateBrush(new SolidColorBrush(Colors.BlueViolet));
var pen = renderContext.CreatePen(Colors.Black, false, 1);
foreach (var rect in found)
{
DrawRectangle(renderContext, pen, brush, xcal, ycal, (TReal)rect.X, (TReal)rect.Y, (TReal)rect.Width, (TReal)rect.Height);
}
brush.Dispose();
pen.Dispose();
var sdbg = DataSeries as Series4;
//sdbg.DrawNodes(renderContext, xcal, ycal, area, pixSizeX, pixSizeY);
}
private void CustomDraw(IRenderContext2D renderContext, IRenderPassData renderPassData)
{
var dataPointSeries = renderPassData.PointSeries as Point2DSeries;
foreach (var pt in ptList)
{
System.Windows.Media.Color ptColor = System.Windows.Media.Color.FromArgb(pt.Color.A, pt.Color.R, pt.Color.G, pt.Color.B);
var ptRefLocal = GetRenderingPoint(new Point(pt.Pt.X, pt.Pt.Y));
/// Create a pen to draw. Make sure you dispose it!
using (var ptPen = renderContext.CreatePen(ptColor, this.AntiAliasing, (float)1))
{
using (var ptBrush = renderContext.CreateBrush(new SolidColorBrush(ptColor)))
{
renderContext.DrawEllipse(ptPen, ptBrush, ptRefLocal, pt.Width, pt.Width);
//using (var lineDrawingContext = renderContext.BeginLine(linePen, initialPoint.X, initialPoint.Y))
// {
// lineDrawingContext.MoveTo(endPoint.X, endPoint.Y);
// lineDrawingContext.End();
// }
}
}
}
}
private void CustomDraw(IRenderContext2D renderContext)
{
foreach (var p in polygonList)
{
Polygon polygon = p.Value.polygon;
if (polygon.Points.Count > 0)
{
Point initialPoint = GetRenderingPoint(polygon.Points[0]);
System.Windows.Media.Color backgroundColor = System.Windows.Media.Color.FromArgb(p.Value.backgroundColor.A, p.Value.backgroundColor.R, p.Value.backgroundColor.G, p.Value.backgroundColor.B);
using (var brush = renderContext.CreateBrush(backgroundColor))
{
//IEnumerable<Point> points; // define your points
renderContext.FillPolygon(brush, GetRenderingPoints(polygon.Points));
}
//// Create a pen to draw. Make sure you dispose it!
System.Windows.Media.Color borderColor = System.Windows.Media.Color.FromArgb(p.Value.borderColor.A, p.Value.borderColor.R, p.Value.borderColor.G, p.Value.borderColor.B);
using (var linePen = renderContext.CreatePen(borderColor, this.AntiAliasing, p.Value.borderWidth, p.Value.borderOpacity, p.Value.borderDashPattern))
{
using (var lineDrawingContext = renderContext.BeginLine(linePen, initialPoint.X, initialPoint.Y))
{
for (int i = 1; i < polygon.Points.Count; i++)
{
lineDrawingContext.MoveTo(GetRenderingPoint(polygon.Points[i]).X, GetRenderingPoint(polygon.Points[i]).Y);
}
lineDrawingContext.End();
}
}
}
}
}
public void DrawNodes(IRenderContext2D renderContext, ICoordinateCalculator <double> xc, ICoordinateCalculator <double> yc, Rect area, float pixSizeX, float pixSizeY)
{
var pen = renderContext.CreatePen(Colors.Brown, false, 1);
var nodes = FindNodesWithDecimation(area, pixSizeX, pixSizeY);
foreach (var node in nodes)
{
var p1 = new Point(xc.GetCoordinate(node.HorizontalRange.Min), yc.GetCoordinate(node.VerticalRange.Min));
var p2 = new Point(xc.GetCoordinate(node.HorizontalRange.Max), yc.GetCoordinate(node.VerticalRange.Max));
renderContext.DrawQuad(pen, p1, p2);
}
pen.Dispose();
}
private void CustomDraw(IRenderContext2D renderContext)
{
foreach (var s in segmentList)
{
Point initialPoint = GetRenderingPoint(new Point(s.Segment.X1, s.Segment.Y1));
Point endPoint = GetRenderingPoint(new Point(s.Segment.X2, s.Segment.Y2));
System.Windows.Media.Color segmentColor = System.Windows.Media.Color.FromArgb(s.Color.A, s.Color.R, s.Color.G, s.Color.B);
/// Create a pen to draw. Make sure you dispose it!
using (var linePen = renderContext.CreatePen(segmentColor, this.AntiAliasing, (float)s.Width, s.Opacity, s.DashPattern))
{
using (var lineDrawingContext = renderContext.BeginLine(linePen, initialPoint.X, initialPoint.Y))
{
lineDrawingContext.MoveTo(endPoint.X, endPoint.Y);
lineDrawingContext.End();
}
}
}
}
protected override void Draw(IRenderContext2D renderContext, IRenderPassData renderPassData)
{
base.Draw(renderContext, renderPassData);
// Create a line drawing context. Make sure you dispose it!
// NOTE: You can create mutliple line drawing contexts to draw segments if you want
// You can also call renderContext.DrawLine() and renderContext.DrawLines(), but the lineDrawingContext is higher performance
foreach (var p in polygonList)
{
Polygon polygon = p.Value.polygon;
if (polygon.Points.Count > 0)
{
Point initialPoint = GetRenderingPoint(polygon.Points[0]);
System.Windows.Media.Color backgroundColor = System.Windows.Media.Color.FromArgb(p.Value.backgroundColor.A, p.Value.backgroundColor.R, p.Value.backgroundColor.G, p.Value.backgroundColor.B);
using (var brush = renderContext.CreateBrush(backgroundColor))
{
//IEnumerable<Point> points; // define your points
renderContext.FillPolygon(brush, GetRenderingPoints(polygon.Points));
}
//// Create a pen to draw. Make sure you dispose it!
System.Windows.Media.Color borderColor = System.Windows.Media.Color.FromArgb(p.Value.borderColor.A, p.Value.borderColor.R, p.Value.borderColor.G, p.Value.borderColor.B);
using (var linePen = renderContext.CreatePen(borderColor, this.AntiAliasing, p.Value.borderWidth, p.Value.borderOpacity, p.Value.borderDashPattern))
{
using (var lineDrawingContext = renderContext.BeginLine(linePen, initialPoint.X, initialPoint.Y))
{
for (int i = 1; i < polygon.Points.Count; i++)
{
lineDrawingContext.MoveTo(GetRenderingPoint(polygon.Points[i]).X, GetRenderingPoint(polygon.Points[i]).Y);
}
lineDrawingContext.End();
}
}
}
}
}
protected override void Draw(IRenderContext2D renderContext, IRenderPassData renderPassData)
{
var xcal = renderPassData.XCoordinateCalculator;
var ycal = renderPassData.YCoordinateCalculator;
var surf = GetParentSurface();
var xrange = surf.XAxis.VisibleRange.AsDoubleRange();
var yrange = surf.YAxis.VisibleRange.AsDoubleRange();
var area = new Rect(xrange.Min, yrange.Min, xrange.Diff, yrange.Diff);
var found = DataSeries.FindInArea(area);
var brush = renderContext.CreateBrush(new SolidColorBrush(Colors.BlueViolet));
var pen = renderContext.CreatePen(Colors.Black, false, 1);
foreach (var index in found)
{
var xv = DataSeries.XValues[index];
var yv = DataSeries.YValues[index];
var wv = DataSeries.WidthValues[index];
var hv = DataSeries.HeightValues[index];
DrawRectangle(renderContext, pen, brush, xcal, ycal, xv, yv, wv, hv);
}
brush.Dispose();
pen.Dispose();
}
protected override void Draw(IRenderContext2D renderContext, IRenderPassData renderPassData)
{
var xcal = renderPassData.XCoordinateCalculator;
var ycal = renderPassData.YCoordinateCalculator;
var surf = GetParentSurface();
var xrange = surf.XAxis.VisibleRange.AsDoubleRange();
var yrange = surf.YAxis.VisibleRange.AsDoubleRange();
var area = new Rect(xrange.Min, yrange.Min, xrange.Diff, yrange.Diff);
var found = DataSeries.FindInArea(area);
var brush = renderContext.CreateBrush(new SolidColorBrush(Colors.BlueViolet));
var pen = renderContext.CreatePen(Colors.Black, false, 1);
foreach (var index in found)
{
var xv = DataSeries.XValues[index];
var yv = DataSeries.YValues[index];
var wv = DataSeries.WidthValues[index];
var hv = DataSeries.HeightValues[index];
DrawRectangle(renderContext, pen, brush, xcal, ycal, xv, yv, wv, hv);
}
brush.Dispose();
pen.Dispose();
}
public override void Draw(IRenderContext2D context, IEnumerable <Point> centers)
{
var fill = context.CreateBrush(Fill);
var stroke = context.CreatePen(Stroke, AntiAliasing, (float)StrokeThickness);
float width2 = (float)(Width * 0.5);
float height2 = (float)(Height * 0.5);
foreach (var center in centers)
{
double top = center.Y - height2;
double bottom = center.Y + height2;
double left = center.X - width2;
double right = center.X + width2;
var diamondPoints = new[]
{
// Points drawn like this:
//
// x0 (x4 in same location as x0)
//
// x3 x1
//
// x2
new Point(center.X, top), // x0
new Point(right, center.Y), // x1
new Point(center.X, bottom), // x2
new Point(left, center.Y), // x3
new Point(center.X, top), // x4 == x0
};
context.FillPolygon(fill, diamondPoints);
context.DrawLines(stroke, diamondPoints);
}
}
protected override void Draw(IRenderContext2D renderContext, IRenderPassData renderPassData)
{
var xcal = renderPassData.XCoordinateCalculator;
var ycal = renderPassData.YCoordinateCalculator;
var surf = GetParentSurface();
var xrange = surf.XAxis.VisibleRange.AsDoubleRange();
var yrange = surf.YAxis.VisibleRange.AsDoubleRange();
var area = new Rect(xrange.Min, yrange.Min, xrange.Diff, yrange.Diff);
var pixTakeCare = 3;
var pixSizeX = (TReal)Math.Abs(xcal.GetDataValue(pixTakeCare) - xcal.GetDataValue(0.0));
var pixSizeY = (TReal)Math.Abs(ycal.GetDataValue(0.0) - ycal.GetDataValue(pixTakeCare));
var found = DataSeries.FindInArea(area, pixSizeX, pixSizeY);
var brush = renderContext.CreateBrush(new SolidColorBrush(Colors.BlueViolet));
var pen = renderContext.CreatePen(Colors.Black, false, 1);
foreach (var rect in found)
{
DrawRectangle(renderContext, pen, brush, xcal, ycal, (TReal)rect.X, (TReal)rect.Y, (TReal)rect.Width, (TReal)rect.Height);
}
brush.Dispose();
pen.Dispose();
var sdbg = DataSeries as Series4;
//sdbg.DrawNodes(renderContext, xcal, ycal, area, pixSizeX, pixSizeY);
}