Question

使用SciChart v5.1.0.11299，我试图以TimeSpanAxis作为X轴显示VerticalLineAnnotations。我可以使用NumericAxis显示垂直线，但不能使用TimeSpanAxis显示垂直线。

    <s:SciChartSurface ChartTitle="Values vs Time">
                        <s:SciChartSurface.XAxis>
                            <s:TimeSpanAxis AxisTitle="Time">
                                <s:TimeSpanAxis.VisibleRange>
                                    <s:TimeSpanRange Min="00" Max="00:10:00"/>
                                </s:TimeSpanAxis.VisibleRange>
                            </s:TimeSpanAxis>
                        </s:SciChartSurface.XAxis>
                        <s:SciChartSurface.YAxis>
                            <s:NumericAxis AxisTitle="Values"/>
                        </s:SciChartSurface.YAxis>
                        <s:SciChartSurface.Annotations>
                            <s:VerticalLineAnnotation Stroke="Orange" StrokeThickness="1" X1="00:00:10"/>
                            <s:VerticalLineAnnotation Stroke="Orange" StrokeThickness="1" X1="00:00:20"/>
                            <s:VerticalLineAnnotation Stroke="Orange" StrokeThickness="1" X1="00:01:00"/>
                            <s:VerticalLineAnnotation Stroke="Orange" StrokeThickness="1" X1="00:02:00"/>
                            <s:VerticalLineAnnotation Stroke="Orange" StrokeThickness="1" X1="00:05:00"/>
                        </s:SciChartSurface.Annotations>
                    </s:SciChartSurface>

但是，作为NumericAxis的相应版本会渲染VerticalLineAnnotations：

                    <s:SciChartSurface ChartTitle="Values vs Not Time">
                        <s:SciChartSurface.XAxis>
                            <s:NumericAxis AxisTitle="Not Time">
                                <s:NumericAxis.VisibleRange>
                                    <s:DoubleRange Min="00" Max="1000"/>
                                </s:NumericAxis.VisibleRange>
                            </s:NumericAxis>
                        </s:SciChartSurface.XAxis>
                        <s:SciChartSurface.YAxis>
                            <s:NumericAxis AxisTitle="Values"/>
                        </s:SciChartSurface.YAxis>
                        <s:SciChartSurface.Annotations>
                            <s:VerticalLineAnnotation Stroke="Orange" StrokeThickness="1" X1="0010"/>
                            <s:VerticalLineAnnotation Stroke="Orange" StrokeThickness="1" X1="0020"/>
                            <s:VerticalLineAnnotation Stroke="Orange" StrokeThickness="1" X1="0100"/>
                            <s:VerticalLineAnnotation Stroke="Orange" StrokeThickness="1" X1="0200"/>
                            <s:VerticalLineAnnotation Stroke="Orange" StrokeThickness="1" X1="0500"/>
                        </s:SciChartSurface.Annotations>
                    </s:SciChartSurface>

这一定是可能的，但我找不到与NumericAxis有关的必要差异的例子？

提前致谢。

Answer 1

我认为这里的问题是你无法在Xaml中轻松设置TimeSpan。

VerticalLineAnnotation.X1的属性是IComparable，因此Xaml编译器将其作为字符串选取。

尝试在代码中设置X1为TimeSpan，附加行为或绑定到ViewModel

SciChart TimeSpanAx未显示VerticalLineAnnotation

1 个答案: