OxyPlot中DateTimeAxis

版权声明：版权所有，需要请联系作者 https://blog.csdn.net/weixin_42930928/article/details/81984549

DateTimeAxis是用来在坐标轴上展示日期/时间值的。

如果添加一个DataPoint 值到Series中，DateTime值需要使用如下方法进行转化

mySeries.Points.Add(new DataPoint(DateTimeAxis.ToDouble(myDateTime),myValue))

对DateTimeAxis需要使用StringFormat属性进行转化

Code	Description	Example
yyyy	year	“2011”
yy	year	“11”
MM	month	“01”
MMM	month	“Jan”
MMMM	month	“January”
w	week number	“4”
ww	week number	“04”
dd	day	“26”
hh	hour	“04”
HH	hour	“16”
mm	minute	“37”
ss	seconds	“23”
yyyy-MM-dd		“2011-01-26”
MM/dd/yyyy		“01/26/2011”

 例子

var model = new PlotModel { Title = "DateTimeAxis" };

var startDate = DateTime.Now.AddDays(-10);
var endDate = DateTime.Now;

var minValue = DateTimeAxis.ToDouble(startDate);
var maxValue = DateTimeAxis.ToDouble(endDate);

model.Axes.Add(new DateTimeAxis { Position = AxisPosition.Bottom, Minimum = minValue, Maximum = maxValue, StringFormat = "M/d"});

---