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164 lines
4.8 KiB
PowerShell
164 lines
4.8 KiB
PowerShell
[CmdletBinding()]
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param (
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[string]
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$DataSource = './Gesamtergebnis-Gemeinderatswahl-2019_stripped.csv'
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)
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function Get-OverpassStreet {
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param (
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[string]
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$Name
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)
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if (!$cache.$Name) {
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$query = @'
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<osm-script>
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<query into="_" type="area">
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<has-kv k="name" modv="" v="Öhringen"/>
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</query>
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<query into="_" type="way">
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<has-kv k="name" modv="" v="{0}"/>
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<area-query/>
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</query>
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<union into="_">
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<item from="_" into="_"/>
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<recurse type="way-node"/>
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</union>
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<print e="" from="_" geometry="skeleton" ids="yes" limit="" mode="body" n="" order="id" s="" w=""/>
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</osm-script>
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'@ -f $Name
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$overpassSplat = @{
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Method = 'Post'
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Uri = 'https://overpass-api.de/api/interpreter'
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Body = $query
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}
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$cache.$Name = Invoke-RestMethod @overpassSplat
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}
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$cache.$Name
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}
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if (Test-Path ./cache.xml) {
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$cache = Import-Clixml ./cache.xml
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} else {
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$cache = @{}
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}
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$data = Import-Csv $DataSource
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$greenParty = ($data[0].PSObject.Properties.Name -like '*Grüne*')[0]
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$dataMeasure = $data.$greenParty
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| Where-Object {$_ -match '%$'}
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| ForEach-Object {$_ -replace '%$'}
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| Measure-Object -Minimum -Maximum
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$minimumResultValue = $dataMeasure.Minimum
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$maximumResultValue = $dataMeasure.Maximum
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# nested array instead of hashtable, because hashtable keys are case-insensitive
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$replacementList = @(
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,('strasse','straße')
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,('Strasse','Straße')
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,('Albrecht-von-Bernegger-S','Albrecht-von-Bernegger-Straße')
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,('Geschwister-Scholl-Str.','Geschwister-Scholl-Straße')
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,('Albert-Schweitzer-Str.','Albert-Schweitzer-Straße')
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,('Freiherr-V-Stein-Str','Freiherr-vom-Stein-Straße')
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,('Nussbaumweg','Nußbaumweg')
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,('Elstarweg ','Elstarweg')
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)
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$featureList = Import-Csv ./polling_stations.csv
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| Sort-Object -Unique Strassenname
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| Group-Object Concat
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| ForEach-Object {
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$pollingStation = $_
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$electionResultObject = $data | Where-Object Description -eq $pollingStation.Name
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if ($electionResultObject) {
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# form into an array for easier handling and to preserve sorting
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$electionResultArray = $electionResultObject.PSObject.Properties | ForEach-Object {
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if ($_.Name -ne 'Description') {
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[pscustomobject]@{
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Party = $_.Name
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ResultValue = [decimal](($_.Value -eq '-' ? 0 : $_.Value) -replace '%$')
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Formatted = $_.Value
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}
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}
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} | Sort-Object -Descending ResultValue
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Write-Host $pollingStation.Name
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$electionResultString = ($electionResultArray | ForEach-Object {
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$_.Formatted + "`t" + $_.Party
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}) -join "`n"
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$greenResultValue = ($electionResultArray | Where-Object Party -eq $greenParty).ResultValue
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$colorGreen = (($greenResultValue - $minimumResultValue) * (100 - 220)) / ($maximumResultValue - $minimumResultValue) + 220
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$color = "rgb(0, $colorGreen, 0)"
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$opacity = (($greenResultValue - $minimumResultValue) * (1.0 - 0.4)) / ($maximumResultValue - $minimumResultValue) + 0.4
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} else {
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$electionResultString = 'no data available'
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$opacity = 0.5
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$color = '#ff00ff'
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}
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$umapOptiones = [PSCustomObject]@{
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color = $color
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weight = 10
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opacity = $opacity
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}
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$pollingStation.Group | ForEach-Object {
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$street = $_.Strassenname
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foreach ($replacement in $replacementList) {
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$street = $street.Replace($replacement[0], $replacement[1])
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}
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$description = $street
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$description += "`n`n"
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$description += $electionResultString
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$overpassResult = Get-OverpassStreet -Name $street
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if (!$overpassResult.osm.way.nd) {
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Write-Error ('way "{0}" for polling station "{1}" probably not found' -f $street,$pollingStation.name)
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return
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}
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$overpassResult.osm.way | ForEach-Object {
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$coordinateList = $_.nd.ref | ForEach-Object {
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$overpassResult.osm.node
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| Where-Object id -eq $_
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| ForEach-Object{
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,($_.lon,$_.lat)
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}
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}
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[PSCustomObject]@{
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type = 'Feature'
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properties = [PSCustomObject]@{
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_umap_options = $umapOptiones
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name = $pollingStation.Name
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description = $description
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}
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geometry = [PSCustomObject]@{
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type = 'LineString'
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coordinates = $coordinateList
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}
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}
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}
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}
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}
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$output = [PSCustomObject]@{
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type = 'FeatureCollection'
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features = $featureList
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}
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$output | ConvertTo-Json -Depth 99 | Out-File output.geojson
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$cache | Export-Clixml ./cache.xml
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