PSFPLInfo

1.1.1

Public/Chart.ps1

                                Add-Type -AssemblyName System.Windows.Forms.DataVisualization

Add-Type -AssemblyName Microsoft.VisualBasic

function Chart

{

<#

    .SYNOPSIS

        Create the chart

    .DESCRIPTION

        This function creates a league chart based on 

        the league object passed in.

    .PARAMETER league

        This is an object representing mini-league data.  You can generate this 

        by using the Get-League function of this module.

    .OUTPUTS

        DataVisualization.Charting.Chart.  Chart returns the Chart class from the namespace 

        System.Windows.Forms.DataVisualization.Charting.  This has several methods that can 

        be called (see https://docs.microsoft.com/en-us/dotnet/api/system.windows.forms.datavisualization.charting.chart)

        but the one most likely to be used is SaveImage which allows the generated line chart to 

        be saved.

    .EXAMPLE

        C:\> $chart = Chart $league;

    .EXAMPLE

        C:\> $chart = Chart -league $league;

    .EXAMPLE

        C:\> $chart = Chart $league; $chart.SaveImage("C:\SomePath\Chart.png", "PNG");

#> 

    [CmdletBinding()]

    [OutputType([object])]

    param(

        [Parameter(Mandatory=$true)][object]$league

    )

    $totalPlayers = $league.Count;

    # This is to cover COVID style extra gameweeks. . .

    $maxGameweeks = 38;

    foreach($team in $league)

    {

        foreach($gw in $team.GameWeekHistory)

        {

            if($maxGameweeks -lt $gw.GameWeekNumber)

            { 

                # In theory, you could use GameWeek since the Event are iterating on

                # the FPL website from 38, but the UI is showing 30+ as Event 39 so

                # I added a count in case it gets changed

                $maxGameweeks = $gw.GameWeekNumber;

            }

        }

    }

    Write-Verbose "League has $totalPlayers players";

    $leagueChart = New-object System.Windows.Forms.DataVisualization.Charting.Chart;

    $leagueChart.Width = (38 * 10) + 1000;

    $leagueChart.Height = ($totalPlayers * 10) + 1000;

    $leagueChart.BackColor = [System.Drawing.Color]::White;

    [void]$leagueChart.Titles.Add("FPL League History");

    $leagueChart.Titles[0].Font = "Arial,20pt";

    $leagueChart.Titles[0].Alignment = "topLeft";

    $chartarea = New-Object System.Windows.Forms.DataVisualization.Charting.ChartArea;

    $chartarea.Name = "ChartArea1";

    $chartarea.AxisY.Title = "Rank";

    $chartarea.AxisX.Title = "Gameweek";

    $chartarea.AxisX.Interval = 1;

    $chartarea.AxisX.IsStartedFromZero = $false;

    $chartarea.AxisX.Minimum = 1;

    $chartarea.AxisX.Maximum = $maxGameweeks;

    $chartarea.AxisY.Interval = 1;

    $chartarea.AxisY.IsReversed = $true;

    $chartarea.AxisY.IsStartedFromZero = $false;

    $chartarea.AxisY.Maximum = $totalPlayers;

    $chartarea.AxisY.Minimum = 1;

    $legend = New-Object System.Windows.Forms.DataVisualization.Charting.Legend;

    $legend.name = "Legend1";

    $leagueChart.Legends.Add($legend);

    $leagueChart.ChartAreas.Add($chartarea);

    foreach($team in $league)

    {

        $manager = $team.Manager;

        if ($manager)

        {

            Write-Verbose "Adding $manager to chart";

            [void]$leagueChart.Series.Add($manager);

            $leagueChart.Series[$manager].ChartType = [System.Windows.Forms.DataVisualization.Charting.SeriesChartType]::Line;

            $leagueChart.Series[$manager].BorderWidth = 3;

            $gameweekList = @();

            $gameweekRankList = @();

            foreach($week in $team.GameWeekHistory)

            {

                $gameweekList += $week.GameWeek;

                $gameweekRankList += $week.GameWeekRank -as [int];

            }

            $leagueChart.Series[$team.Manager].Points.DataBindXY($gameweekList, $gameweekRankList);

        }

    }

    return $leagueChart;

}