这段代码就是一个例子
var lineAnnotation4 = new LineAnnotation();
lineAnnotation4.Type = LineAnnotationType.Horizontal;
lineAnnotation4.Y = 2;
lineAnnotation4.Color = OxyColors.Gold;
lineAnnotation4.MaximumX = 4;
lineAnnotation4.Text = "Horizontal";
plotModel1.Annotations.Add(lineAnnotation4);
谢谢。
试试lineAnnotation4.TextVerticalAlignment = VerticalAlignment.Top
编辑:似乎反直觉,但你实际上需要指定lineAnnotation4.TextVerticalAlignment = VerticalAlignment.Bottom;