Radost updates

map/tools/extract_height_data.py

@@ -0,0 +1,14 @@
+# This software is MIT licensed
+# by Radost Waszkiewicz 2023
+#
+# This script extracts height information from a .3d file
+# and formats it into an array that will later be used by
+# a javascript web tool.
+
+import survex3dreader
+import pprint
+
+data = survex3dreader.read_svx_file("1623-and-1626-with-terrain.3d")
+surface_grid = [x for x in data["station_list"] if "srtm" in x[1]]
+# meters to centimeters
+pprint.pprint([[x[0][0] / 100, x[0][1] / 100, x[0][2] / 100] for x in surface_grid])

map/tools/height_from_utm_chunk.jsp

@@ -0,0 +1,31 @@
+'use strict'
+
+// This code is MIT licensed.
+// Copyright Radost Waszkiewicz 2023
+
+export function heightFromUTM(easting,northing) {
+    let res = findNearestPoint(raw,[easting,northing]);
+    let winner = res[0];
+    let distance = res[1];
+    return ""+winner+" (refrerence:"+(distance).toFixed(0)+"m away)";
+}
+
+function findNearestPoint(points, targetPoint) {
+    // this function written by chat gpt
+    let nearestDistance = Infinity;
+    let nearestPoint = null;
+
+    for (let i = 0; i < points.length; i++) {
+        const [x, y, z] = points[i];
+        const distance = Math.sqrt(Math.pow(x - targetPoint[0], 2) + Math.pow(y - targetPoint[1], 2));
+
+        if (distance < nearestDistance) {
+            nearestDistance = distance;
+            nearestPoint = z;
+        }
+    }
+
+    return [nearestPoint,nearestDistance];
+}
+
+let raw = 

map/tools/make.sh

@@ -0,0 +1,8 @@
+# This software is MIT licensed
+# by Radost Waszkiewicz 2023
+#
+# This script combines chunks of javascript into
+# one javascript file to be used by a web tool.
+
+python3 extract_height_data.py > constants.jsp
+cat height_from_utm_chunk.jsp constants.jsp > height_from_utm.js