Added split kml.ps1

Author: alan-null

.vscode/settings.json

@@ -1,4 +1,5 @@
 {
+  // "editor.fontFamily": "Cascadia Code, jetbrains mono, 'Courier New', monospace", // fallback fonts
   "editor.fontSize": 18,
   "workbench.colorTheme": "Default Dark Modern",
   "workbench.colorCustomizations": {

file-processing/split kml.ps1

@@ -0,0 +1,27 @@
+$kmlPath = 'C:\big.kml'
+$max = 240
+$partsFolder = "$PSScriptRoot\parts"
+
+[xml]$doc = Get-Content -Path $kmlPath
+mkdir $partsFolder -ErrorAction SilentlyContinue | Out-Null
+$i = 1
+do {
+    [xml]$clone = $doc.Clone()
+    $clone.ChildNodes[0].Encoding = $null
+
+    # remove everything except max number count (i.e 240, 480, 720)
+    $clone.kml.Document.Folder.Placemark | Select-Object -Skip ($max * $i) | % {
+        $clone.kml.Document.Folder.RemoveChild($_) | Out-Null
+    }
+
+    # buffering - selecting last max number count
+    while ($clone.kml.Document.Folder.Placemark.Count -gt $max) {
+        $clone.kml.Document.Folder.Placemark | Select-Object -First 1 | % {
+            $clone.kml.Document.Folder.RemoveChild($_) | Out-Null
+        }
+    }
+
+    $clone.Save("$partsFolder\_part2_$($i).kml")
+    $i++
+}
+while ($max * $i -le $doc.kml.Document.Folder.Placemark.Count)