Add tools to create postal code boundaries

scripts/makeConvex.ts

@@ -0,0 +1,30 @@
+import fs from "fs";
+import {GeoOperations} from "../Logic/GeoOperations";
+import ScriptUtils from "./ScriptUtils";
+
+/**
+ * Given one of more files, calculates a somewhat convex hull for them
+ * @param file
+ */
+
+function makeConvex(file) {
+    ScriptUtils.erasableLog("Handling", file)
+    const geoJson = JSON.parse(fs.readFileSync(file, "UTF8"))
+    const convex = GeoOperations.convexHull(geoJson, {concavity: 2})
+    if (convex.properties === undefined) {
+        convex.properties = {}
+    }
+    fs.writeFileSync(file + ".convex.geojson", JSON.stringify(convex))
+
+}
+
+
+let args = [...process.argv]
+args.splice(0, 2)
+args.forEach(file => {
+    try {
+        makeConvex(file)
+    } catch (e) {
+        console.error("Could not handle file ", file, " due to ", e)
+    }
+})