Add conversion script for ZHV

scripts/importscripts/zhv.ts

@@ -0,0 +1,47 @@
+import { readFileSync, writeFileSync } from "fs"
+import Script from "../Script"
+import { parse } from "papaparse"
+import { FeatureCollection, Point } from "geojson"
+
+class ZHVcsv2GeoJson extends Script {
+    constructor() {
+        super("Converts a CSV file with ZHV data to GeoJSON format. Usage: csv-file output-file")
+    }
+
+    async main(args: string[]): Promise<void> {
+        const csvFile = args[0]
+        const outputFile = args[1]
+
+        if (!csvFile || !outputFile) {
+            console.error("Usage: csv-file output-file")
+            return
+        }
+
+        // Read the CSV file and parse it using PapaParse
+        const text = readFileSync(csvFile, "utf-8")
+        const parsed = parse(text, {
+            header: true,
+            dynamicTyping: true,
+        })
+
+        console.log(`Parsed ${parsed.data.length} rows from ${csvFile}`)
+
+        // Convert the parsed data to GeoJSON format
+        const geoJson: FeatureCollection<Point> = {
+            type: "FeatureCollection",
+            features: parsed.data.map((row: any) => ({
+                type: "Feature",
+                geometry: {
+                    type: "Point",
+                    coordinates: [row.longitude, row.latitude],
+                },
+                properties: row,
+            })),
+        }
+
+        // Write the GeoJSON output to the specified file
+        writeFileSync(outputFile, JSON.stringify(geoJson), "utf-8")
+    }
+}
+
+new ZHVcsv2GeoJson().run()