// --------------------------------------------------------------------------------------------------------------------
// <copyright file="PolygonAnnotationExamples.cs" company="OxyPlot">
// Copyright (c) 2014 OxyPlot contributors
// </copyright>
// --------------------------------------------------------------------------------------------------------------------

namespace ExampleLibrary
{
 using System;

 using OxyPlot;
 using OxyPlot.Annotations;
 using OxyPlot.Axes;
 using OxyPlot.Series;

 [Examples("PolygonAnnotation"), Tags("Annotations")]
 public static class PolygonAnnotationExamples
 {
 [Example("PolygonAnnotation")]
 public static PlotModel PolygonAnnotation()
 {
 var model = new PlotModel { Title = "PolygonAnnotation" };
 model.Axes.Add(new LinearAxis { Position = AxisPosition.Bottom, Minimum = -20, Maximum = 20 });
 model.Axes.Add(new LinearAxis { Position = AxisPosition.Left, Minimum = -10, Maximum = 10 });
 var a1 = new PolygonAnnotation { Text = "Polygon 1" };
 a1.Points.AddRange(new[] { new DataPoint(4, -2), new DataPoint(8, -4), new DataPoint(17, 7), new DataPoint(5, 8), new DataPoint(2, 5) });
 model.Annotations.Add(a1);
 return model;
 }

 [Example("PolygonAnnotation with custom text position and alignment")]
 public static PlotModel PolygonAnnotationTextPosition()
 {
 var model = new PlotModel { Title = "PolygonAnnotation with fixed text position and alignment" };
 model.Axes.Add(new LinearAxis { Position = AxisPosition.Bottom, Minimum = -20, Maximum = 20 });
 model.Axes.Add(new LinearAxis { Position = AxisPosition.Left, Minimum = -10, Maximum = 10 });
 var a1 = new PolygonAnnotation { Text = "Polygon 1", TextHorizontalAlignment = HorizontalAlignment.Left, TextVerticalAlignment = VerticalAlignment.Bottom, TextPosition = new DataPoint(4.1, -1.9) };
 a1.Points.AddRange(new[] { new DataPoint(4, -2), new DataPoint(8, -2), new DataPoint(17, 7), new DataPoint(5, 8), new DataPoint(4, 5) });
 model.Annotations.Add(a1);
 return model;
 }

 [Example("AnnotationLayer property")]
 public static PlotModel AnnotationLayerProperty()
 {
 var model = new PlotModel { Title = "Annotation Layers" };
 model.Axes.Add(new LinearAxis { Position = AxisPosition.Bottom, Minimum = -20, Maximum = 30, MajorGridlineStyle = LineStyle.Solid, MajorGridlineThickness = 1 });
 model.Axes.Add(new LinearAxis { Position = AxisPosition.Left, Minimum = -10, Maximum = 10, MajorGridlineStyle = LineStyle.Solid, MajorGridlineThickness = 1 });

 var a1 = new PolygonAnnotation
 {
 Layer = AnnotationLayer.BelowAxes,
 Text = "Layer = BelowAxes"
 };
 a1.Points.AddRange(new[]
 {
 new DataPoint(-11, -2), new DataPoint(-7, -4), new DataPoint(-3, 7), new DataPoint(-10, 8),
 new DataPoint(-13, 5)
 });
 model.Annotations.Add(a1);
 var a2 = new PolygonAnnotation
 {
 Layer = AnnotationLayer.BelowSeries,
 Text = "Layer = BelowSeries"
 };
 a2.Points.AddRange(new DataPoint[]
 {
 new DataPoint(4, -2), new DataPoint(8, -4), new DataPoint(12, 7), new DataPoint(5, 8),
 new DataPoint(2, 5)
 });
 model.Annotations.Add(a2);
 var a3 = new PolygonAnnotation { Layer = AnnotationLayer.AboveSeries, Text = "Layer = AboveSeries" };
 a3.Points.AddRange(new[] { new DataPoint(19, -2), new DataPoint(23, -4), new DataPoint(27, 7), new DataPoint(20, 8), new DataPoint(17, 5) });
 model.Annotations.Add(a3);

 model.Series.Add(new FunctionSeries(Math.Sin, -20, 30, 400));
 return model;
 }
 }
}