public static PlotModel ImageAnnotation()
{
var model = new PlotModel { Title = "ImageAnnotation", Subtitle = "Click the image" };
model.Axes.Add(new LinearAxis { Position = AxisPosition.Bottom, Minimum = -20, Maximum = 20 });
model.Axes.Add(new LinearAxis { Position = AxisPosition.Left, Minimum = -10, Maximum = 10 });
OxyImage image;
#if UNIVERSAL
var assembly = typeof(PlotModel).GetTypeInfo().Assembly;
#else
var assembly = Assembly.GetExecutingAssembly();
#endif
using (var stream = assembly.GetManifestResourceStream("ExampleLibrary.Resources.OxyPlot.png"))
{
image = new OxyImage(stream);
}
var ia = new ImageAnnotation { ImageSource = image, X = new PlotLength(4, PlotLengthUnit.Data), Y = new PlotLength(2, PlotLengthUnit.Data), HorizontalAlignment = HorizontalAlignment.Right };
model.Annotations.Add(ia);
// Handle left mouse clicks
ia.MouseDown += (s, e) =>
{
if (e.ChangedButton != OxyMouseButton.Left)
{
return;
}
ia.HorizontalAlignment = ia.HorizontalAlignment == HorizontalAlignment.Right ? HorizontalAlignment.Left : HorizontalAlignment.Right;
model.InvalidatePlot(false);
e.Handled = true;
};
return model;
}
public void AddBackgroundGradient(PlotModel model, Axis xAxis, double yStart, double yEnd, OxyColor color1, OxyColor color2)
{
var image = GetGradientImage(color1, color2);
var colorAnnotation = new ImageAnnotation {
ImageSource = image,
Interpolate = true,
Layer = AnnotationLayer.BelowAxes,
X = new PlotLength(xAxis.ActualMinimum, PlotLengthUnit.Data),
Y = new PlotLength(yStart, PlotLengthUnit.Data),
Width = new PlotLength(xAxis.ActualMaximum - xAxis.ActualMinimum, PlotLengthUnit.Data),
Height = new PlotLength(Math.Abs(yEnd - yStart), PlotLengthUnit.Data),
HorizontalAlignment = OxyPlot.HorizontalAlignment.Left,
VerticalAlignment = OxyPlot.VerticalAlignment.Bottom
};
model.Annotations.Add(colorAnnotation);
}
public static PlotModel ImageAnnotation()
{
var model = new PlotModel("ImageAnnotation", "Click the image");
model.Axes.Add(new LinearAxis(AxisPosition.Bottom, -20, 20));
model.Axes.Add(new LinearAxis(AxisPosition.Left, -10, 10));
OxyImage image;
var assembly = Assembly.GetExecutingAssembly();
using (var stream = assembly.GetManifestResourceStream("ExampleLibrary.Resources.OxyPlot.png"))
{
image = new OxyImage(stream);
}
var ia = new ImageAnnotation(image, new DataPoint(4, 2), HorizontalAlignment.Right);
model.Annotations.Add(ia);
// Handle left mouse clicks
ia.MouseDown += (s, e) =>
{
if (e.ChangedButton != OxyMouseButton.Left)
{
return;
}
ia.HorizontalAlignment = ia.HorizontalAlignment == HorizontalAlignment.Right ? HorizontalAlignment.Left : HorizontalAlignment.Right;
model.InvalidatePlot(false);
e.Handled = true;
};
return model;
}
