/// <summary>
/// 创建PointAnnotation图像
/// </summary>
/// <param name="markText">标注文字</param>
/// <param name="centerX">标注的中心坐标</param>
/// <param name="centerY">标注的中心坐标</param>
/// <param name="markerSize">标注的大小</param>
/// <param name="borderColor">边框颜色</param>
/// <param name="fillColor">填充颜色</param>
/// <param name="lineWidth">线宽</param>
/// <param name="markerType">标记形状</param>
/// <returns></returns>
public static PointAnnotation CreatePointAnnotation(string markText, double centerX, double centerY, double markerSize = 5.0, SolidColorBrush borderColor = null, SolidColorBrush fillColor = null, double lineWidth = 1.0, MarkerType markerType = MarkerType.Circle)
{
if (borderColor == null)
{
borderColor = Brushes.Black;
}
if (fillColor == null)
{
fillColor = Brushes.Transparent;
}
PointAnnotation annotation = new PointAnnotation()
{
X = centerX,
Y = centerY,
Size = markerSize,
Stroke = ChartCommonMethod.ToOxyColor(borderColor),
StrokeThickness = lineWidth,
Fill = ChartCommonMethod.ToOxyColor(fillColor),
Text = markText,
Shape = markerType,
};
return(annotation);
}
/// <summary>
/// 获取图形线条颜色
/// </summary>
/// <param name="color">线条颜色</param>
/// <returns></returns>
private void SetBorderColor(SolidColorBrush color)
{
if (AnnChart is ShapeAnnotation shapeAnn)
{
shapeAnn.Stroke = ChartCommonMethod.ToOxyColor(color);
}
}
/// <summary>
/// 获取图形填充颜色
/// </summary>
/// <param name="color">线条颜色</param>
/// <returns></returns>
private void SetFillColor(SolidColorBrush color)
{
if (AnnChart is ShapeAnnotation shapeAnn)
{
shapeAnn.Fill = ChartCommonMethod.ToOxyColor(color);
}
}
/// <summary>
/// 创建RectangleAnnotation图像,NaN表示值由显示的高度或宽度决定
/// </summary>
/// <param name="markText">标注文字</param>
/// <param name="minX">起始X</param>
/// <param name="minY">起始Y</param>
/// <param name="maxX">结束X</param>
/// <param name="maxY">结束Y</param>
/// <param name="markerSize">标注的大小</param>
/// <param name="borderColor">边框颜色</param>
/// <param name="fillColor">填充颜色</param>
/// <param name="lineWidth">线宽</param>
/// <returns></returns>
public static RectangleAnnotation CreateRectangleAnnotation(string markText, double minX = double.NaN, double maxX = double.NaN, double minY = double.NaN, double maxY = double.NaN, double markerSize = 5.0, SolidColorBrush borderColor = null, SolidColorBrush fillColor = null, double lineWidth = 1.0)
{
if (borderColor == null)
{
borderColor = Brushes.Black;
}
if (fillColor == null)
{
fillColor = Brushes.Transparent;
}
RectangleAnnotation annotation = new RectangleAnnotation()
{
MinimumX = minX,
MaximumX = maxX,
MinimumY = minY,
MaximumY = maxY,
Stroke = ChartCommonMethod.ToOxyColor(borderColor),
StrokeThickness = lineWidth,
Fill = ChartCommonMethod.ToOxyColor(fillColor),
Text = markText
};
return(annotation);
}