/// <summary>
/// 绘制Y轴坐标刻度线
/// </summary>
/// <param name="axis">Y轴坐标</param>
/// <param name="canvas">画布</param>
/// <param name="y1">第一个Y</param>
/// <param name="y2">第二个Y</param>
public static void DrawYAxisLabelLine(AxisAbs axis, Canvas canvas, double y1, double y2)
{
if (!axis.DrawAxisLine || !DoubleHasValue(y1) || !DoubleHasValue(y2))
{
return;
}
var labelLinePath = new Path();
labelLinePath.Style = axis.AxisLineStyle;
if (labelLinePath.Style == null)
{
labelLinePath.Style = ChartStyleHelper.GetDefaultAxisLabelLineStyle();
}
Point point1, point2;
if (axis.IsAxisYLeft())
{
point1 = new Point(canvas.Width, y1);
point2 = new Point(canvas.Width, y2);
}
else
{
point1 = new Point(ChartConstant.ZERO_D, y1);
point2 = new Point(ChartConstant.ZERO_D, y2);
}
PathFigure labelPathFigure = new PathFigure();
labelPathFigure.StartPoint = point1;
labelPathFigure.Segments.Add(new LineSegment(point2, true));
labelLinePath.Data = new PathGeometry()
{
Figures = new PathFigureCollection(new PathFigure[] { labelPathFigure })
};
canvas.Children.Add(labelLinePath);
}
/// <summary>
/// 绘制Y轴坐标刻度线
/// </summary>
/// <param name="axis">Y轴坐标</param>
/// <param name="canvas">画布</param>
/// <param name="yList">Y轴刻度集合</param>
public static void DrawYAxisLabelLine(AxisAbs axis, Canvas canvas, List <double> yList)
{
if (!axis.DrawAxisLine || yList == null || yList.Count == 0)
{
return;
}
var labelLinePath = new Path();
labelLinePath.Style = axis.AxisLineStyle;
if (labelLinePath.Style == null)
{
labelLinePath.Style = ChartStyleHelper.GetDefaultAxisLabelLineStyle();
}
GeometryGroup geometryGroup = new GeometryGroup();
Point point1, point2;
double y;
int lastIndex = yList.Count - 1;
for (int i = 0; i < yList.Count; i++)
{
y = yList[i];
if (axis.IsAxisYLeft())
{
point1 = new Point(canvas.Width - axis.LabelSize, y);
point2 = new Point(canvas.Width, y);
}
else
{
point1 = new Point(ChartConstant.ZERO_D, y);
point2 = new Point(axis.LabelSize, y);
}
PathFigure labelPathFigure = new PathFigure();
labelPathFigure.StartPoint = point1;
labelPathFigure.Segments.Add(new LineSegment(point2, true));
geometryGroup.Children.Add(new PathGeometry()
{
Figures = new PathFigureCollection(new PathFigure[] { labelPathFigure })
});
}
//坐标轴
if (axis.IsAxisYLeft())
{
point1 = new Point(canvas.Width, yList.First());
point2 = new Point(canvas.Width, yList.Last());
}
else
{
point1 = new Point(ChartConstant.ZERO_D, yList.First());
point2 = new Point(ChartConstant.ZERO_D, yList.Last());
}
PathFigure axisPathFigure = new PathFigure();
axisPathFigure.StartPoint = point1;
axisPathFigure.Segments.Add(new LineSegment(point2, true));
geometryGroup.Children.Add(new PathGeometry()
{
Figures = new PathFigureCollection(new PathFigure[] { axisPathFigure })
});
labelLinePath.Data = geometryGroup;
canvas.Children.Add(labelLinePath);
}