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- Quelle: https://github.com/oxyplot/oxyplot
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maier_st
2023-09-02 09:24:59 +02:00
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Source/Examples/ExampleLibrary/Annotations/TextAnnotationExamples.cs Normal file
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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="TextAnnotationExamples.cs" company="OxyPlot">
// Copyright (c) 2014 OxyPlot contributors
// </copyright>
// --------------------------------------------------------------------------------------------------------------------
namespace ExampleLibrary
{
using System;
using System.Linq;
using OxyPlot;
using OxyPlot.Annotations;
using OxyPlot.Axes;
[Examples("TextAnnotation"), Tags("Annotations")]
public static class TextAnnotationExamples
{
[Example("TextAnnotation")]
public static PlotModel TextAnnotations()
{
var model = new PlotModel { Title = "TextAnnotation" };
model.Axes.Add(new LinearAxis { Position = AxisPosition.Bottom, Minimum = -15, Maximum = 25 });
model.Axes.Add(new LinearAxis { Position = AxisPosition.Left, Minimum = -5, Maximum = 18 });
model.Annotations.Add(new TextAnnotation { TextPosition = new DataPoint(-6, 0), Text = "Text annotation 1" });
model.Annotations.Add(new TextAnnotation { TextPosition = new DataPoint(-7, 10), TextRotation = 80, Text = "Text annotation 2" });
model.Annotations.Add(new TextAnnotation { TextPosition = new DataPoint(2, 2), TextRotation = 20, TextHorizontalAlignment = HorizontalAlignment.Right, TextVerticalAlignment = VerticalAlignment.Top, Text = "Right/Top" });
model.Annotations.Add(new TextAnnotation { TextPosition = new DataPoint(2, 4), TextRotation = 20, TextHorizontalAlignment = HorizontalAlignment.Right, TextVerticalAlignment = VerticalAlignment.Middle, Text = "Right/Middle" });
model.Annotations.Add(new TextAnnotation { TextPosition = new DataPoint(2, 6), TextRotation = 20, TextHorizontalAlignment = HorizontalAlignment.Right, TextVerticalAlignment = VerticalAlignment.Bottom, Text = "Right/Bottom" });
model.Annotations.Add(new TextAnnotation { TextPosition = new DataPoint(10, 2), TextRotation = 20, TextHorizontalAlignment = HorizontalAlignment.Center, TextVerticalAlignment = VerticalAlignment.Top, Text = "Center/Top" });
model.Annotations.Add(new TextAnnotation { TextPosition = new DataPoint(10, 4), TextRotation = 20, TextHorizontalAlignment = HorizontalAlignment.Center, TextVerticalAlignment = VerticalAlignment.Middle, Text = "Center/Middle" });
model.Annotations.Add(new TextAnnotation { TextPosition = new DataPoint(10, 6), TextRotation = 20, TextHorizontalAlignment = HorizontalAlignment.Center, TextVerticalAlignment = VerticalAlignment.Bottom, Text = "Center/Bottom" });
model.Annotations.Add(new TextAnnotation { TextPosition = new DataPoint(18, 2), TextRotation = 20, TextHorizontalAlignment = HorizontalAlignment.Left, TextVerticalAlignment = VerticalAlignment.Top, Text = "Left/Top" });
model.Annotations.Add(new TextAnnotation { TextPosition = new DataPoint(18, 4), TextRotation = 20, TextHorizontalAlignment = HorizontalAlignment.Left, TextVerticalAlignment = VerticalAlignment.Middle, Text = "Left/Middle" });
model.Annotations.Add(new TextAnnotation { TextPosition = new DataPoint(18, 6), TextRotation = 20, TextHorizontalAlignment = HorizontalAlignment.Left, TextVerticalAlignment = VerticalAlignment.Bottom, Text = "Left/Bottom" });
double d = 0.05;
Action<double, double> addPoint = (x, y) =>
{
var annotation = new PolygonAnnotation
{
Layer = AnnotationLayer.BelowAxes,
};
annotation.Points.AddRange(new[]
{
new DataPoint(x - d, y - d), new DataPoint(x + d, y - d), new DataPoint(x + d, y + d),
new DataPoint(x - d, y + d), new DataPoint(x - d, y - d)
});
model.Annotations.Add(annotation);
};
foreach (var a in model.Annotations.ToArray())
{
var ta = a as TextAnnotation;
if (ta != null)
{
addPoint(ta.TextPosition.X, ta.TextPosition.Y);
}
}
return model;
}
[Example("Rotations")]
public static PlotModel Rotations()
{
var model = new PlotModel { Title = "TextAnnotation Rotations" };
model.Axes.Add(new LinearAxis { Position = AxisPosition.Bottom, Minimum = -5, Maximum = 45 });
model.Axes.Add(new LinearAxis { Position = AxisPosition.Left, StartPosition = 1, EndPosition = 0, Minimum = -1, Maximum = 8 });
for (var i = 0; i < 360; i += 5)
{
model.Annotations.Add(new TextAnnotation
{
TextRotation = i,
TextPosition = new DataPoint(i % 45, i / 45),
Text = $"{i}°",
TextVerticalAlignment = VerticalAlignment.Middle,
TextHorizontalAlignment = HorizontalAlignment.Center
});
}
return model;
}
}
}