fix(foundry): isolate HGeoZone projection faults

2026-07-22 10:04:18 +03:00
parent 309cddef73
commit ca26702047
5 changed files with 189 additions and 27 deletions
@@ -0,0 +1,48 @@
+import assert from "node:assert/strict";
+import { readFile } from "node:fs/promises";
+import test from "node:test";
+import ApproximateTerrainHeights from "@cesium/engine/Source/Core/ApproximateTerrainHeights.js";
+import Cartesian3 from "@cesium/engine/Source/Core/Cartesian3.js";
+import GroundPolylineGeometry from "@cesium/engine/Source/Core/GroundPolylineGeometry.js";
+import { normalizeHGeoZoneRing } from "../apps/catalog/src/hGeoZoneProjection.mjs";
+
+test("normalizes GeoJSON closure and adjacent duplicates without changing the polygon", () => {
+  assert.deepEqual(normalizeHGeoZoneRing([
+    [37, 55],
+    [37, 55],
+    [38, 55],
+    [38, 56],
+    [37, 55],
+    [37, 55],
+  ]), [
+    [37, 55],
+    [38, 55],
+    [38, 56],
+  ]);
+});
+
+test("rejects an invalid or degenerate ring instead of publishing partial geometry", () => {
+  assert.deepEqual(normalizeHGeoZoneRing([[37, 55], [38, 55], [37, 55]]), []);
+  assert.deepEqual(normalizeHGeoZoneRing([[37, 55], [38, Number.NaN], [38, 56], [37, 55]]), []);
+  assert.deepEqual(normalizeHGeoZoneRing([[37, 55], [181, 55], [38, 56], [37, 55]]), []);
+});
+
+test("normalized double-closed ring is accepted by Cesium GroundPolylineGeometry", async () => {
+  ApproximateTerrainHeights._terrainHeights = JSON.parse(await readFile(
+    new URL("../node_modules/@cesium/engine/Source/Assets/approximateTerrainHeights.json", import.meta.url),
+    "utf8",
+  ));
+  const positions = normalizeHGeoZoneRing([
+    [37.55, 55.75],
+    [37.56, 55.75],
+    [37.56, 55.76],
+    [37.55, 55.75],
+    [37.55, 55.75],
+  ]).map(([longitude, latitude]) => Cartesian3.fromDegrees(longitude, latitude));
+  const geometry = GroundPolylineGeometry.createGeometry(new GroundPolylineGeometry({
+    positions,
+    width: 1.5,
+    loop: true,
+  }));
+  assert.ok(geometry);
+});