我正在使用Oxyplot在我的Xamarin.iOS项目中绘制条形图。
这是目前我的图表看起来的样子:
我想要将x轴上的数字值替换为太阳、星期一、星期二等文本,而不是数字。
我看到CategoryAxis有一个名为LabelFormatter的方法,它返回Func<double, string>
,但我该如何使用它呢?
还有为什么Y轴上的标签没有显示出来?
public class MyClass
{
/// <summary>
/// Gets or sets the plot model that is shown in the demo apps.
/// </summary>
/// <value>My model.</value>
public PlotModel MyModel { get; set; }
/// <summary>
/// Initializes a new instance of the <see cref="OxyPlotSample.MyClass"/> class.
/// </summary>
public MyClass()
{
var model = new PlotModel { Title = "ColumnSeries" };
model.PlotAreaBorderColor = OxyColors.Transparent;
// A ColumnSeries requires a CategoryAxis on the x-axis.
model.Axes.Add(new CategoryAxis()
{
Position = AxisPosition.Bottom,
MinorTickSize = 0,
MajorTickSize = 0,
//MajorGridlineStyle = LineStyle.Solid,
//MinorGridlineStyle = LineStyle.Solid,
});
model.Axes.Add(new LinearAxis()
{
AxislineStyle = LineStyle.None,
Position = AxisPosition.Left,
MinorTickSize = 0,
MajorTickSize = 0,
MajorGridlineStyle = LineStyle.Solid,
MinorGridlineStyle = LineStyle.Solid,
Minimum = 0,
Maximum = 400,
});
var series = new ColumnSeries();
series.Items.Add(new ColumnItem() { Value = 200, Color = OxyColors.Orange});
series.Items.Add(new ColumnItem(200));
series.Items.Add(new ColumnItem(300));
series.Items.Add(new ColumnItem(100));
series.Items.Add(new ColumnItem(200));
series.Items.Add(new ColumnItem(100));
series.Items.Add(new ColumnItem(130));
model.Series.Add(series);
this.MyModel = model;
}
}