Powershell：在条形图上放置第二个X轴

Question

以下图表使用powershell和csv文件。我也想将“时间”添加为顶部的辅助X轴，但我不知道如何将其添加到系列中。

我怀疑这是与

$chart1.Series["Elapse"].Points.DataBindXY($date, $totalMinutes)
$chart1.Series["Elapse"].Points.DataBindXY($date, $totalMinutes)

的直线，但是如何用两个X轴确定DataBind XY？

CVS：

Date,Time,Attempts,TotalMinutes
06/08/2020,20:48,6,6.08613289666667
06/08/2020,21:20,9,9.10416342666667
06/09/2020,07:25,2,2.06852810833333

powershell：

#CONSTANTS
$directory = "C:\Users\gamble.pw\Desktop\powershell"
$csvFile = "logfile.csv"

#chart object
[void][Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms.DataVisualization")
$chart1 = New-object System.Windows.Forms.DataVisualization.Charting.Chart
$chart1.Width = 2000
$chart1.Height = 1000
$chart1.BackColor = [System.Drawing.Color]::White

#title 
[void]$chart1.Titles.Add("Login Time")
$chart1.Titles[0].Font = "segoeuilight,20pt"
$chart1.Titles[0].Alignment = "topLeft"

#chart area
$chartarea = New-Object System.Windows.Forms.DataVisualization.Charting.ChartArea
$chartarea.Name = "ChartArea1"
$chartarea.AxisY.Title = "Elapse Time in Minutes"
$chartarea.AxisX.Title = "Date"
$chartarea.AxisX2.Title = "Time"
$chartarea.AxisY.Interval = 1
$chartarea.AxisX.Interval = 1 
$chart1.ChartAreas.Add($chartarea)


#data source
$datasource = Import-Csv "$directory\$csvFile"
$date = $datasource.Date 
$time = $datasource.Time 
$totalMinutes = $datasource.TotalMinutes

Write-Host $date
Write-Host $time
Write-Host $attempts
Write-Host $totalMinutes


#data series
[void]$chart1.Series.Add("Elapse")
#$chart1.Series["Elapse"].ChartType = [System.Windows.Forms.DataVisualization.Charting.SeriesChartType]::Line
$chart1.Series["Elapse"].BorderWidth = 2
$chart1.Series["Elapse"].Points.DataBindXY($date, $totalMinutes)


$chart1.SaveImage("$directory\Bar_Chart_Login.png","png")

Answer 1

每个轴应该有不同的系列。您必须在系列中定义要使用的轴。一旦知道要与Series一起使用的轴，就可以将其设置为AxistType。

$chart1.Series["Elapse"].YAxisType = AxisType.Secondary;
$chart1.Series["Elapse"].XAxisType = AxisType.Secondary;

一旦设置了AxisType，对系列进行数据绑定时，它将知道在哪个轴上显示它。