From 041157d36cc9629c429258e5f5f032f7b4f3a310 Mon Sep 17 00:00:00 2001
From: Frank Elsinga <frank@elsinga.de>
Date: Fri, 2 Aug 2024 18:43:30 +0200
Subject: [PATCH] added a demo for indoor data

---
 .../app/components/DetailsInteractiveMap.vue  |   46 +-
 webclient/app/components/IndoorMap.vue        |  282 ++
 .../app/components/MapGLNotSupported.vue      |   45 +
 webclient/app/composables/indoorLayer.ts      |   85 +
 webclient/app/pages/next.client.vue           |   24 +
 webclient/package.json                        |    1 +
 webclient/pnpm-lock.yaml                      |  140 +
 webclient/public/example.geojson              | 3690 +++++++++++++++++
 8 files changed, 4272 insertions(+), 41 deletions(-)
 create mode 100644 webclient/app/components/IndoorMap.vue
 create mode 100644 webclient/app/components/MapGLNotSupported.vue
 create mode 100644 webclient/app/composables/indoorLayer.ts
 create mode 100644 webclient/app/pages/next.client.vue
 create mode 100644 webclient/public/example.geojson

diff --git a/webclient/app/components/DetailsInteractiveMap.vue b/webclient/app/components/DetailsInteractiveMap.vue
index ba7001754..efadba028 100644
--- a/webclient/app/components/DetailsInteractiveMap.vue
+++ b/webclient/app/components/DetailsInteractiveMap.vue
@@ -33,8 +33,10 @@ function loadInteractiveMap() {
     }
     marker.value = new Marker({ element: createMarker() });
     const coords = props.data.coords;
-    // @ts-expect-error somehow this is too deep for typescript
-    if (map.value !== undefined) marker.value.setLngLat([coords.lon, coords.lat]).addTo(map.value as Map);
+    if (map.value !== undefined) {
+      // @ts-expect-error somehow this is too deep for typescript
+      marker.value.setLngLat([coords.lon, coords.lat]).addTo(map.value as Map);
+    }
 
     const overlays = props.data.maps?.overlays;
     if (overlays) floorControl.value.updateFloors(overlays);
@@ -274,22 +276,7 @@ onMounted(() => {
     }"
   >
     <div v-if="webglSupport" id="interactive-map" class="absolute !h-full !w-full" />
-    <div v-else class="relative">
-      {{ t("no_webgl.no_browser_support") }}
-      {{ t("no_webgl.explain_webgl") }} <br />
-      {{ t("no_webgl.please_try") }}:
-      <ol>
-        <li>
-          {{ t("no_webgl.upgrade_browser") }}
-          {{ t("no_webgl.visit_official_website_to_upgrade_browser") }}
-        </li>
-        <li>
-          {{ t("no_webgl.try_different_browser") }}
-          {{ t("no_webgl.known_good_browsers") }}
-          {{ t("no_webgl.try_different_browser2") }}
-        </li>
-      </ol>
-    </div>
+    <LazyMapGLNotSupported v-else />
   </div>
 </template>
 
@@ -433,26 +420,3 @@ onMounted(() => {
   }
 }
 </style>
-
-<i18n lang="yaml">
-de:
-  no_webgl:
-    explain_webgl: WebGL ist eine Technologie, die interaktive 3D-Grafiken direkt im Webbrowser ermöglicht, und leider scheint Ihr Browser diese Fähigkeit nicht zu besitzen.
-    known_good_browsers: Beliebte Browser wie Google Chrome, Mozilla Firefox und Microsoft Edge sind dafür bekannt, dass sie WebGL-Funktionen haben.
-    no_browser_support: Es tut uns leid, aber es scheint, dass Ihr Browser WebGL nicht unterstützt, was für die Anzeige der Karte erforderlich ist.
-    please_try: Um dieses Problem zu beheben und die Karte anzuzeigen, empfehlen wir, eine der folgenden Möglichkeiten auszuprobieren
-    try_different_browser: Alternativ können Sie auch einen anderen Browser verwenden, der WebGL unterstützt.
-    try_different_browser2: Versuchen Sie, einen dieser Browser zu installieren und die Karte erneut aufzurufen.
-    upgrade_browser: Aktualisieren Sie Ihren aktuellen Browser auf die neueste Version, da neuere Versionen oft Unterstützung für WebGL enthalten.
-    visit_official_website_to_upgrade_browser: Sie können die offizielle Website Ihres Browsers besuchen, um das neueste Update herunterzuladen und zu installieren.
-en:
-  no_webgl:
-    explain_webgl: WebGL is a technology that enables interactive 3D graphics directly in the web browser, and unfortunately, your browser does not seem to have this capability.
-    known_good_browsers: Popular browsers like Google Chrome, Mozilla Firefox, and Microsoft Edge are known to have WebGL capabilities.
-    no_browser_support: We are sorry, but it seems that your browser does not support WebGL, which is required to display the map.
-    please_try: To resolve this issue and view the map, we recommend trying one of the following
-    try_different_browser: Alternatively, you can try using a different browser that supports WebGL.
-    try_different_browser2: Consider installing one of these browsers and accessing the map again.
-    upgrade_browser: Upgrade your current browser to the latest version, as newer versions often include support for WebGL.
-    visit_official_website_to_upgrade_browser: You can visit the official website of your browser to download and install the latest update.
-</i18n>
diff --git a/webclient/app/components/IndoorMap.vue b/webclient/app/components/IndoorMap.vue
new file mode 100644
index 000000000..5f8a881fa
--- /dev/null
+++ b/webclient/app/components/IndoorMap.vue
@@ -0,0 +1,282 @@
+<script setup lang="ts">
+// @ts-expect-error library does not provide proper types
+import { addIndoorTo, IndoorControl, IndoorMap } from "map-gl-indoor";
+import { AttributionControl, FullscreenControl, GeolocateControl, Map, Marker, NavigationControl } from "maplibre-gl";
+import { webglSupport } from "~/composables/webglSupport";
+// @ts-expect-error library does not provide proper types
+import type { MaplibreMapWithIndoor } from "map-gl-indoor";
+import type { components } from "~/api_types";
+import { indoorLayers } from "~/composables/indoorLayer";
+
+const props = defineProps<{ data: DetailsResponse }>();
+const map = ref<MaplibreMapWithIndoor | undefined>(undefined);
+const marker = ref<Marker | undefined>(undefined);
+const runtimeConfig = useRuntimeConfig();
+
+const initialLoaded = ref(false);
+
+type DetailsResponse = components["schemas"]["DetailsResponse"];
+
+onMounted(async () => {
+  await loadInteractiveMap();
+});
+
+async function loadInteractiveMap() {
+  if (!webglSupport) return;
+
+  const doMapUpdate = async function () {
+    // The map might or might not be initialized depending on the type
+    // of navigation.
+    if (document.getElementById("interactive-map")) {
+      if (document.getElementById("interactive-map")?.classList.contains("maplibregl-map")) {
+        marker.value?.remove();
+      } else {
+        map.value = await initMap("interactive-map");
+
+        document.getElementById("interactive-map")?.classList.remove("loading");
+      }
+    }
+
+    marker.value = new Marker({ element: createMarker() });
+    const coords = props.data.coords;
+    if (map.value !== undefined) {
+      // @ts-expect-error somehow this is too deep for typescript
+      marker.value.setLngLat([coords.lon, coords.lat]).addTo(map.value as MaplibreMapWithIndoor);
+    }
+
+    const defaultZooms: { [index: string]: number | undefined } = {
+      building: 17,
+      room: 18,
+    };
+
+    map.value?.flyTo({
+      center: [8.3909479, 49.0332499],
+      zoom: defaultZooms[props.data.type || "undefined"] || 16,
+      speed: 1,
+      maxDuration: 2000,
+    });
+  };
+
+  // The map element should be visible when initializing
+  if (!document.querySelector("#interactive-map .maplibregl-canvas")) await nextTick(doMapUpdate);
+  else await doMapUpdate();
+}
+
+function createMarker(hueRotation = 0): HTMLDivElement {
+  const markerDiv = document.createElement("div");
+  const markerIcon = document.createElement("span");
+  markerIcon.style.filter = `hue-rotate(${hueRotation}deg)`;
+  markerIcon.classList.add("marker");
+  markerIcon.classList.add("marker-pin");
+  markerDiv.appendChild(markerIcon);
+  const markerShadow = document.createElement("span");
+  markerShadow.classList.add("marker");
+  markerShadow.classList.add("marker-shadow");
+  markerDiv.appendChild(markerShadow);
+  return markerDiv;
+}
+
+async function initMap(containerId: string) {
+  const map = new Map({
+    container: containerId,
+
+    // create the gl context with MSAA antialiasing, so custom layers are antialiasing.
+    // slower, but prettier and therefore worth it for our use case
+    antialias: true,
+
+    // without this true, printing the webpage is not possible
+    // with this true the performance is halfed though...
+    // => we are deliberetely not supporing printing of this part of the webpage
+    preserveDrawingBuffer: false,
+
+    // preview of the following style is available at
+    // https://nav.tum.de/maps/
+    style: `${runtimeConfig.public.mapsURL}/maps/styles/osm-liberty/style.json`,
+
+    center: [11.5748, 48.14], // Approx Munich
+    zoom: 11, // Zoomed out so that the whole city is visible
+
+    // done manually, to have more controll over when it is extended
+    attributionControl: false,
+  }) as MaplibreMapWithIndoor;
+
+  map.addControl(new NavigationControl({}), "top-left");
+
+  // (Browser) Fullscreen is enabled only on mobile, on desktop the map
+  // is maximized instead. This is determined once to select the correct
+  // container to maximize, and then remains unchanged even if the browser
+  // is resized (not relevant for users but for developers).
+  const isMobile = window.matchMedia && window.matchMedia("only screen and (max-width: 480px)").matches;
+  const fullscreenContainer = isMobile
+    ? document.getElementById("interactive-map")
+    : document.getElementById("interactive-map-container");
+  const fullscreenCtl = new FullscreenControl({
+    container: fullscreenContainer as HTMLElement,
+  });
+  // "Backup" the maplibregl default fullscreen handler
+  const defaultOnClickFullscreen = fullscreenCtl._onClickFullscreen;
+  fullscreenCtl._onClickFullscreen = () => {
+    if (isMobile) defaultOnClickFullscreen();
+    else {
+      if (fullscreenCtl._container.classList.contains("maximize")) {
+        fullscreenCtl._container.classList.remove("maximize");
+        document.body.classList.remove("overflow-y-hidden");
+        fullscreenCtl._fullscreenButton.classList.remove("maplibregl-ctrl-shrink");
+      } else {
+        fullscreenCtl._container.classList.add("maximize");
+        fullscreenCtl._fullscreenButton.classList.add("maplibregl-ctrl-shrink");
+        document.body.classList.add("overflow-y-hidden");
+        window.scrollTo({ top: 0, behavior: "auto" });
+      }
+
+      fullscreenCtl._fullscreen = fullscreenCtl._container.classList.contains("maximize");
+      fullscreenCtl._fullscreenButton.ariaLabel = fullscreenCtl._fullscreen ? "Exit fullscreen" : "Enter fullscreen";
+      fullscreenCtl._fullscreenButton.title = fullscreenCtl._fullscreen ? "Exit fullscreen" : "Enter fullscreen";
+      fullscreenCtl._map.resize();
+    }
+  };
+  // There is a bug that the map doesn't update to the new size
+  // when changing between fullscreen in the mobile version.
+  if (isMobile && ResizeObserver) {
+    const fullscreenObserver = new ResizeObserver(() => {
+      fullscreenCtl._map.resize();
+    });
+    fullscreenObserver.observe(fullscreenCtl._container);
+  }
+  map.addControl(fullscreenCtl);
+
+  const location = new GeolocateControl({
+    positionOptions: {
+      enableHighAccuracy: true,
+    },
+    trackUserLocation: true,
+  });
+  map.addControl(location);
+
+  // Each source / style change causes the map to get
+  // into "loading" state, so map.loaded() is not reliable
+  // enough to know whether just the initial loading has
+  // succeeded.
+  map.on("load", () => {
+    initialLoaded.value = true;
+
+    // The attributionControl is automatically open, which takes up a lot of
+    // space on the small map display that we have. That's why we add it ourselves
+    // and then toggle it.
+    // It's only added after loading because if we add it directly on map initialization
+    // for some reason it doesn't work.
+    const attrib = new AttributionControl({ compact: true });
+    map.addControl(attrib);
+    attrib._toggleAttribution();
+  });
+
+  addIndoorTo(map);
+
+  // Retrieve the geojson from the path and add the map
+  const geojson = await (await fetch("/example.geojson")).json();
+  const indoorMap = IndoorMap.fromGeojson(geojson, { indoorLayers, showFeaturesWithEmptyLevel: true });
+  await map.indoor.addMap(indoorMap);
+
+  // Add the specific control
+  map.addControl(new IndoorControl(), "bottom-left");
+
+  return map;
+}
+</script>
+
+<template>
+  <div
+    id="interactive-map-container"
+    class="mb-2.5 aspect-4/3 print:!hidden"
+    :class="{
+      'dark:bg-black bg-white border-zinc-300 border': webglSupport,
+      'bg-red-300 text-red-950': !webglSupport,
+    }"
+  >
+    <div v-if="webglSupport" id="interactive-map" class="absolute !h-full !w-full" />
+    <LazyMapGLNotSupported v-else />
+  </div>
+</template>
+
+<style lang="postcss">
+@import "maplibre-gl/dist/maplibre-gl.css";
+
+/* --- Interactive map display --- */
+#interactive-map-container {
+  /* --- User location dot --- */
+
+  .maplibregl-user-location-dot,
+  .maplibregl-user-location-dot::before {
+    @apply bg-blue-500;
+  }
+
+  > div {
+    padding-bottom: 75%; /* 4:3 aspect ratio */
+  }
+
+  &.maximize {
+    position: absolute;
+    top: -10px;
+    left: 0;
+    width: 100%;
+    height: calc(100vh - 60px);
+    z-index: 1000;
+
+    > div {
+      padding-bottom: 0;
+      height: 100%;
+    }
+  }
+}
+
+.marker {
+  position: absolute;
+  pointer-events: none;
+  padding: 0;
+
+  &.marker-pin {
+    background-image: url(~/assets/map/marker_pin.webp);
+    width: 25px;
+    height: 36px;
+    top: -33px;
+    left: -12px;
+  }
+
+  &.marker-shadow {
+    background-image: url(~/assets/map/marker_pin-shadow.webp);
+    width: 38px;
+    height: 24px;
+    top: -20px;
+    left: -12px;
+  }
+}
+
+/* mapboxgl is intentional due to map-gl-indoor */
+.maplibregl-ctrl-bottom-left .mapboxgl-ctrl {
+  margin-left: 10px;
+  margin-bottom: 10px;
+  pointer-events: auto;
+
+  &.mapboxgl-ctrl-group {
+    background: #fff;
+    border-radius: 4px;
+    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.1);
+
+    button {
+      background-color: transparent;
+      border: 0;
+      box-sizing: border-box;
+      cursor: pointer;
+      display: block;
+      height: 29px;
+      outline: none;
+      padding: 0;
+      width: 29px;
+    }
+  }
+
+  .mapboxgl-ctrl-group:empty {
+    box-shadow: none;
+  }
+}
+</style>
diff --git a/webclient/app/components/MapGLNotSupported.vue b/webclient/app/components/MapGLNotSupported.vue
new file mode 100644
index 000000000..9fa1e4d1e
--- /dev/null
+++ b/webclient/app/components/MapGLNotSupported.vue
@@ -0,0 +1,45 @@
+<script setup lang="ts">
+const { t } = useI18n({ useScope: "local" });
+</script>
+
+<template>
+  <div class="relative">
+    {{ t("no_webgl.no_browser_support") }}
+    {{ t("no_webgl.explain_webgl") }} <br />
+    {{ t("no_webgl.please_try") }}:
+    <ol>
+      <li>
+        {{ t("no_webgl.upgrade_browser") }}
+        {{ t("no_webgl.visit_official_website_to_upgrade_browser") }}
+      </li>
+      <li>
+        {{ t("no_webgl.try_different_browser") }}
+        {{ t("no_webgl.known_good_browsers") }}
+        {{ t("no_webgl.try_different_browser2") }}
+      </li>
+    </ol>
+  </div>
+</template>
+
+<i18n lang="yaml">
+de:
+  no_webgl:
+    explain_webgl: WebGL ist eine Technologie, die interaktive 3D-Grafiken direkt im Webbrowser ermöglicht, und leider scheint Ihr Browser diese Fähigkeit nicht zu besitzen.
+    known_good_browsers: Beliebte Browser wie Google Chrome, Mozilla Firefox und Microsoft Edge sind dafür bekannt, dass sie WebGL-Funktionen haben.
+    no_browser_support: Es tut uns leid, aber es scheint, dass Ihr Browser WebGL nicht unterstützt, was für die Anzeige der Karte erforderlich ist.
+    please_try: Um dieses Problem zu beheben und die Karte anzuzeigen, empfehlen wir, eine der folgenden Möglichkeiten auszuprobieren
+    try_different_browser: Alternativ können Sie auch einen anderen Browser verwenden, der WebGL unterstützt.
+    try_different_browser2: Versuchen Sie, einen dieser Browser zu installieren und die Karte erneut aufzurufen.
+    upgrade_browser: Aktualisieren Sie Ihren aktuellen Browser auf die neueste Version, da neuere Versionen oft Unterstützung für WebGL enthalten.
+    visit_official_website_to_upgrade_browser: Sie können die offizielle Website Ihres Browsers besuchen, um das neueste Update herunterzuladen und zu installieren.
+en:
+  no_webgl:
+    explain_webgl: WebGL is a technology that enables interactive 3D graphics directly in the web browser, and unfortunately, your browser does not seem to have this capability.
+    known_good_browsers: Popular browsers like Google Chrome, Mozilla Firefox, and Microsoft Edge are known to have WebGL capabilities.
+    no_browser_support: We are sorry, but it seems that your browser does not support WebGL, which is required to display the map.
+    please_try: To resolve this issue and view the map, we recommend trying one of the following
+    try_different_browser: Alternatively, you can try using a different browser that supports WebGL.
+    try_different_browser2: Consider installing one of these browsers and accessing the map again.
+    upgrade_browser: Upgrade your current browser to the latest version, as newer versions often include support for WebGL.
+    visit_official_website_to_upgrade_browser: You can visit the official website of your browser to download and install the latest update.
+</i18n>
diff --git a/webclient/app/composables/indoorLayer.ts b/webclient/app/composables/indoorLayer.ts
new file mode 100644
index 000000000..8187b7374
--- /dev/null
+++ b/webclient/app/composables/indoorLayer.ts
@@ -0,0 +1,85 @@
+export const indoorLayers = [
+  {
+    filter: ["filter-==", "indoor", "room"],
+    id: "indoor-rooms",
+    type: "fill",
+    source: "indoor",
+    paint: {
+      "fill-color": "#e0e0e0",
+      "fill-opacity": 0.5,
+      "fill-outline-color": "#000",
+      "fill-antialias": true, // otherwise the outline is invisible sometimes..
+      "text-offset": 'eval(prop("placement_offset","default"))',
+      text:
+        "eval(" +
+        'has_tag_key("amenity")' +
+        '?concat(get(split(";",tag(room)),0)," (",get(split(";",tag("amenity")),0),")")' +
+        ':has_tag_key("shop")' +
+        '?concat(get(split(";",tag(room)),0)," (",get(split(";",tag("shop")),0),")")' +
+        ':has_tag_key("name")' +
+        '?concat(get(split(";",tag(room)),0)," (",get(split(";",tag("name")),0),")")' +
+        ':has_tag_key("level")' +
+        '?concat(get(split(";",tag(room)),0)," (",get(split(";",tag("level")),0),")")' +
+        ':get(split(";",tag(room)),0))',
+      "font-size": 'eval(prop(lane_default_width,"default"))',
+      "text-color": "white",
+      "text-opacity": 1,
+      "text-halo-radius": 2,
+      "text-halo-color": "blue",
+      "text-halo-opacity": 0.3,
+    },
+  },
+  {
+    filter: ["filter-==", "indoor", "corridor"],
+    id: "indoor-corridors",
+    type: "fill",
+    source: "indoor",
+    paint: {
+      "fill-color": "#8dd1fc",
+      "fill-opacity": 0.5,
+      "fill-outline-color": "#000",
+      "fill-antialias": true, // otherwise the outline is invisible sometimes..
+      "border-color": "#000",
+    },
+  },
+  {
+    filter: ["filter-==", "indoor", "area"],
+    id: "indoor-areas",
+    type: "fill",
+    source: "indoor",
+    paint: {
+      "fill-color": "#ff0084",
+      "fill-outline-color": "#000",
+      "fill-antialias": true, // otherwise the outline is invisible sometimes..
+      "fill-opacity": 0.5,
+      "text-offset": 'eval(prop("placement_offset","default"))',
+      text: 'eval(has_tag_key("level")?concat(prop(text)," (",get(split(";",tag("level")),0),")"):prop(text))',
+      "font-size": 'eval(prop(lane_default_width,"default"))',
+      "text-color": "white",
+      "text-opacity": 1,
+      "text-halo-radius": 2,
+      "text-halo-color": "blue",
+      "text-halo-opacity": 0.3,
+    },
+  },
+  {
+    filter: ["filter-==", "indoor", "wall"],
+    id: "indoor-walls",
+    type: "fill",
+    source: "indoor",
+    paint: {
+      "fill-color": "#000",
+      "fill-opacity": 0.5,
+    },
+  },
+  {
+    filter: ["filter-==", "indoor", "door"],
+    id: "indoor-doors",
+    type: "fill",
+    source: "indoor",
+    paint: {
+      "fill-color": "#00ffcc",
+      "fill-opacity": 0.5,
+    },
+  },
+];
diff --git a/webclient/app/pages/next.client.vue b/webclient/app/pages/next.client.vue
new file mode 100644
index 000000000..719cab098
--- /dev/null
+++ b/webclient/app/pages/next.client.vue
@@ -0,0 +1,24 @@
+<script setup lang="ts">
+import type { components } from "~/api_types";
+
+type DetailsResponse = components["schemas"]["DetailsResponse"];
+const runtimeConfig = useRuntimeConfig();
+const url = computed(() => `${runtimeConfig.public.apiURL}/api/locations/5532.01.105?lang=de`);
+const { data } = useFetch<DetailsResponse, string>(url, {
+  key: "details",
+  dedupe: "cancel",
+  credentials: "omit",
+  retry: 120,
+  retryDelay: 1000,
+});
+</script>
+
+<template>
+  <Suspense>
+    <IndoorMap v-if="data" :data="data" />
+    <NuxtLoadingIndicator v-else />
+    <template #fallback>
+      <NuxtLoadingIndicator />
+    </template>
+  </Suspense>
+</template>
diff --git a/webclient/package.json b/webclient/package.json
index 7c8cfbb0e..c50572c93 100644
--- a/webclient/package.json
+++ b/webclient/package.json
@@ -26,6 +26,7 @@
     "@vueuse/core": "10.11.0",
     "@vueuse/nuxt": "10.11.0",
     "@vueuse/router": "^10.11.0",
+    "map-gl-indoor": "0.5.0",
     "maplibre-gl": "4.5.1",
     "nightwind": "1.1.13",
     "nuxt": "3.12.4",
diff --git a/webclient/pnpm-lock.yaml b/webclient/pnpm-lock.yaml
index f2683f0d0..cca8ca761 100644
--- a/webclient/pnpm-lock.yaml
+++ b/webclient/pnpm-lock.yaml
@@ -47,6 +47,9 @@ importers:
       '@vueuse/router':
         specifier: ^10.11.0
         version: 10.11.0(vue-router@4.4.2(vue@3.4.35(typescript@5.5.4)))(vue@3.4.35(typescript@5.5.4))
+      map-gl-indoor:
+        specifier: 0.5.0
+        version: 0.5.0(mapbox-gl@3.5.2)
       maplibre-gl:
         specifier: 4.5.1
         version: 4.5.1
@@ -1084,6 +1087,9 @@ packages:
     resolution: {integrity: sha512-rY0o9A5ECsTQRVhv7tL/OyDpGAoUB4tTvLiW1DSzQGq4bvTPhNw1VpSNjDJc5GFZ2XuyOtSWSVN05qOtcD71qQ==}
     engines: {node: '>= 0.6'}
 
+  '@mapbox/mapbox-gl-supported@3.0.0':
+    resolution: {integrity: sha512-2XghOwu16ZwPJLOFVuIOaLbN0iKMn867evzXFyf0P22dqugezfJwLmdanAgU25ITvz1TvOfVP4jsDImlDJzcWg==}
+
   '@mapbox/node-pre-gyp@1.0.11':
     resolution: {integrity: sha512-Yhlar6v9WQgUp/He7BdgzOz8lqMQ8sU+jkCq7Wx8Myc5YFJLbEe7lgui/V7G1qB1DJykHSGwreceSaD60Y0PUQ==}
     hasBin: true
@@ -1810,6 +1816,24 @@ packages:
     resolution: {integrity: sha512-L7z9BgrNEcYyUYtF+HaEfiS5ebkh9jXqbszz7pC0hRBPaatV0XjSD3+eHrpqFemQfgwiFF0QPIarnIihIDn7OA==}
     engines: {node: '>=10.13.0'}
 
+  '@turf/bbox@6.5.0':
+    resolution: {integrity: sha512-RBbLaao5hXTYyyg577iuMtDB8ehxMlUqHEJiMs8jT1GHkFhr6sYre3lmLsPeYEi/ZKj5TP5tt7fkzNdJ4GIVyw==}
+
+  '@turf/destination@6.5.0':
+    resolution: {integrity: sha512-4cnWQlNC8d1tItOz9B4pmJdWpXqS0vEvv65bI/Pj/genJnsL7evI0/Xw42RvEGROS481MPiU80xzvwxEvhQiMQ==}
+
+  '@turf/distance@6.5.0':
+    resolution: {integrity: sha512-xzykSLfoURec5qvQJcfifw/1mJa+5UwByZZ5TZ8iaqjGYN0vomhV9aiSLeYdUGtYRESZ+DYC/OzY+4RclZYgMg==}
+
+  '@turf/helpers@6.5.0':
+    resolution: {integrity: sha512-VbI1dV5bLFzohYYdgqwikdMVpe7pJ9X3E+dlr425wa2/sMJqYDhTO++ec38/pcPvPE6oD9WEEeU3Xu3gza+VPw==}
+
+  '@turf/invariant@6.5.0':
+    resolution: {integrity: sha512-Wv8PRNCtPD31UVbdJE/KVAWKe7l6US+lJItRR/HOEW3eh+U/JwRCSUl/KZ7bmjM/C+zLNoreM2TU6OoLACs4eg==}
+
+  '@turf/meta@6.5.0':
+    resolution: {integrity: sha512-RrArvtsV0vdsCBegoBtOalgdSOfkBrTJ07VkpiCnq/491W67hnMWmDu7e6Ztw0C3WldRYTXkg3SumfdzZxLBHA==}
+
   '@types/debug@4.1.12':
     resolution: {integrity: sha512-vIChWdVG3LG1SMxEvI/AK+FWJthlrqlTu7fbrlywTkkaONwk/UAGaULXRlf8vkzFBLVm0zkMdCquhL5aOjhXPQ==}
 
@@ -2486,6 +2510,9 @@ packages:
   character-reference-invalid@2.0.1:
     resolution: {integrity: sha512-iBZ4F4wRbyORVsu0jPV7gXkOsGYjGHPmAyv+HiHG8gi5PtC9KI2j1+v8/tlibRvjoWX027ypmG/n0HtO5t7unw==}
 
+  cheap-ruler@4.0.0:
+    resolution: {integrity: sha512-0BJa8f4t141BYKQyn9NSQt1PguFQXMXwZiA5shfoaBYHAb2fFk2RAX+tiWMoQU+Agtzt3mdt0JtuyshAXqZ+Vw==}
+
   chokidar@3.6.0:
     resolution: {integrity: sha512-7VT13fmjotKpGipCW9JEQAusEPE+Ei8nl6/g4FBAmIm0GOOLMua9NDDo/DWp0ZAxCr3cPq5ZpBqmPAQgDda2Pw==}
     engines: {node: '>= 8.10.0'}
@@ -2716,6 +2743,9 @@ packages:
   css.escape@1.5.1:
     resolution: {integrity: sha512-YUifsXXuknHlUsmlgyY0PKzgPOr7/FjCePfHNt0jxm83wHZi44VDMQ7/fGNkjY3/jV1MC+1CmZbaHzugyeRtpg==}
 
+  csscolorparser@1.0.3:
+    resolution: {integrity: sha512-umPSgYwZkdFoUrH5hIq5kf0wPSXiro51nPw0j2K/c83KflkPSTBGMz6NJvMB+07VlL0y7VPo6QJcDjcgKTTm3w==}
+
   cssesc@3.0.0:
     resolution: {integrity: sha512-/Tb/JcjK111nNScGob5MNtsntNM1aCNUDipB/TkwZFhyDrrE47SOx/18wF2bbjgc3ZzCSKW1T5nt5EbFoAz/Vg==}
     engines: {node: '>=4'}
@@ -3213,6 +3243,9 @@ packages:
   fault@1.0.4:
     resolution: {integrity: sha512-CJ0HCB5tL5fYTEA7ToAq5+kTwd++Borf1/bifxd9iT70QcXr4MRrO3Llf8Ifs70q+SJcGHFtnIE/Nw6giCtECA==}
 
+  fflate@0.8.2:
+    resolution: {integrity: sha512-cPJU47OaAoCbg0pBvzsgpTPhmhqI5eJjh/JIu8tPj5q+T7iLvW/JAYUqmE7KOB4R1ZyEhzBaIQpQpardBF5z8A==}
+
   file-entry-cache@8.0.0:
     resolution: {integrity: sha512-XXTUwCvisa5oacNGRP9SfNtYBNAMi+RPwBFmblZEF7N7swHYQS6/Zfk7SRwx4D5j3CH211YNRco1DEMNVfZCnQ==}
     engines: {node: '>=16.0.0'}
@@ -3438,6 +3471,9 @@ packages:
   graphemer@1.4.0:
     resolution: {integrity: sha512-EtKwoO6kxCL9WO5xipiHTZlSzBm7WLT627TqC/uVRd0HKmq8NXyebnNYxDoBi7wt8eTWrUrKXCOVaFq9x1kgag==}
 
+  grid-index@1.1.0:
+    resolution: {integrity: sha512-HZRwumpOGUrHyxO5bqKZL0B0GlUpwtCAzZ42sgxUPniu33R1LSFH5yrIcBCHjkctCAh3mtWKcKd9J4vDDdeVHA==}
+
   gzip-size@7.0.0:
     resolution: {integrity: sha512-O1Ld7Dr+nqPnmGpdhzLmMTQ4vAsD+rHwMm1NLUmoUFFymBOMKxCCrtDxqdBRYXdeEPEi3SyoR4TizJLQrnKBNA==}
     engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
@@ -3959,6 +3995,9 @@ packages:
   lodash.camelcase@4.3.0:
     resolution: {integrity: sha512-TwuEnCnxbc3rAvhf/LbG7tJUDzhqXyFnv3dtzLOPgCG/hODL7WFnsbwktkD7yUV0RrreP/l1PALq/YSg6VvjlA==}
 
+  lodash.clonedeep@4.5.0:
+    resolution: {integrity: sha512-H5ZhCF25riFd9uB5UCkVKo61m3S/xZk1x4wA6yp/L3RFP6Z/eHH1ymQcGLo7J3GMPfm0V/7m1tryHuGVxpqEBQ==}
+
   lodash.debounce@4.0.8:
     resolution: {integrity: sha512-FT1yDzDYEoYWhnSGnpE/4Kj1fLZkDFyqRb7fNt6FdYOSxlUWAtp42Eh6Wb0rGIv/m9Bgo7x4GhQbm5Ys4SG5ow==}
 
@@ -4018,6 +4057,14 @@ packages:
     resolution: {integrity: sha512-g3FeP20LNwhALb/6Cz6Dd4F2ngze0jz7tbzrD2wAV+o9FeNHe4rL+yK2md0J/fiSf1sa1ADhXqi5+oVwOM/eGw==}
     engines: {node: '>=8'}
 
+  map-gl-indoor@0.5.0:
+    resolution: {integrity: sha512-v3tsA6yVzTOMfyBLsXPOG6pKqzk7SRo6QFZjMJS1EIYsfQtkAZbB5i20CPv3xWqVSbXJKUNJdF+3xDLlouEXfw==}
+    peerDependencies:
+      mapbox-gl: '>1.10.0'
+
+  mapbox-gl@3.5.2:
+    resolution: {integrity: sha512-KUrmDmLFKPp3MSsWGNTH5uvtYwJknV+eFJ+vxiN6hqKpzbme37z+JfYs5Mehs3CgFaIV/pUdnEV9UPUZJPuS+Q==}
+
   maplibre-gl@4.5.1:
     resolution: {integrity: sha512-pKFDK8ZU2atwZWC8gdPVhN7Bf5HIPgtA+IG/iQ7J6WgmqSwCSmylc5q3stahWqXfx9PYUwVNJITrp1Hw96SUiA==}
     engines: {node: '>=16.14.0', npm: '>=8.1.0'}
@@ -5343,6 +5390,10 @@ packages:
   serialize-javascript@6.0.2:
     resolution: {integrity: sha512-Saa1xPByTTq2gdeFZYLLo+RFE35NHZkAbqZeWNd3BpzppeVisAqpDjcp8dyf6uIvEqJRd46jemmyA4iFIeVk8g==}
 
+  serialize-to-js@3.1.2:
+    resolution: {integrity: sha512-owllqNuDDEimQat7EPG0tH7JjO090xKNzUtYz6X+Sk2BXDnOCilDdNLwjWeFywG9xkJul1ULvtUQa9O4pUaY0w==}
+    engines: {node: '>=4.0.0'}
+
   serve-placeholder@2.0.2:
     resolution: {integrity: sha512-/TMG8SboeiQbZJWRlfTCqMs2DD3SZgWp0kDQePz9yUuCnDfDh/92gf7/PxGhzXTKBIPASIHxFcZndoNbp6QOLQ==}
 
@@ -5706,6 +5757,10 @@ packages:
   tiny-invariant@1.3.3:
     resolution: {integrity: sha512-+FbBPE1o9QAYvviau/qC5SE3caw21q3xkvWKBtja5vgqOWIHHJ3ioaq1VPfn/Szqctz2bU/oYeKd9/z5BL+PVg==}
 
+  tiny-lru@11.2.11:
+    resolution: {integrity: sha512-27BIW0dIWTYYoWNnqSmoNMKe5WIbkXsc0xaCQHd3/3xT2XMuMJrzHdrO9QBFR14emBz1Bu0dOAs2sCBBrvgPQA==}
+    engines: {node: '>=12'}
+
   tinyqueue@2.0.3:
     resolution: {integrity: sha512-ppJZNDuKGgxzkHihX8v9v9G5f+18gzaTfrukGrq6ueg0lmH4nqVnA2IPG0AEH3jKEk2GRJCUhDoqpoiw3PHLBA==}
 
@@ -5789,6 +5844,9 @@ packages:
   tunnel-agent@0.6.0:
     resolution: {integrity: sha512-McnNiV1l8RYeY8tBgEpuodCC1mLUdbSN+CYBL7kJsJNInOP8UjDDEwdk6Mw60vdLLrr5NHKZhMAOSrR2NZuQ+w==}
 
+  tweakpane@4.0.4:
+    resolution: {integrity: sha512-RkWD54zDlEbnN01wQPk0ANHGbdCvlJx/E8A1QxhTfCbX+ROWos1Ws2MnhOm39aUGMOh+36TjUwpDmLfmwTr1Fg==}
+
   type-check@0.4.0:
     resolution: {integrity: sha512-XleUoc9uwGXqjWwXaUTZAmzMcFZ5858QA2vvx1Ur5xIcixXIP+8LnFDgRplU30us6teqdlskFfu+ae4K79Ooew==}
     engines: {node: '>= 0.8.0'}
@@ -7159,6 +7217,8 @@ snapshots:
 
   '@mapbox/jsonlint-lines-primitives@2.0.2': {}
 
+  '@mapbox/mapbox-gl-supported@3.0.0': {}
+
   '@mapbox/node-pre-gyp@1.0.11(encoding@0.1.13)':
     dependencies:
       detect-libc: 2.0.3
@@ -8611,6 +8671,31 @@ snapshots:
 
   '@trysound/sax@0.2.0': {}
 
+  '@turf/bbox@6.5.0':
+    dependencies:
+      '@turf/helpers': 6.5.0
+      '@turf/meta': 6.5.0
+
+  '@turf/destination@6.5.0':
+    dependencies:
+      '@turf/helpers': 6.5.0
+      '@turf/invariant': 6.5.0
+
+  '@turf/distance@6.5.0':
+    dependencies:
+      '@turf/helpers': 6.5.0
+      '@turf/invariant': 6.5.0
+
+  '@turf/helpers@6.5.0': {}
+
+  '@turf/invariant@6.5.0':
+    dependencies:
+      '@turf/helpers': 6.5.0
+
+  '@turf/meta@6.5.0':
+    dependencies:
+      '@turf/helpers': 6.5.0
+
   '@types/debug@4.1.12':
     dependencies:
       '@types/ms': 0.7.34
@@ -9476,6 +9561,8 @@ snapshots:
 
   character-reference-invalid@2.0.1: {}
 
+  cheap-ruler@4.0.0: {}
+
   chokidar@3.6.0:
     dependencies:
       anymatch: 3.1.3
@@ -9675,6 +9762,8 @@ snapshots:
 
   css.escape@1.5.1: {}
 
+  csscolorparser@1.0.3: {}
+
   cssesc@3.0.0: {}
 
   cssfilter@0.0.10:
@@ -10289,6 +10378,8 @@ snapshots:
     dependencies:
       format: 0.2.2
 
+  fflate@0.8.2: {}
+
   file-entry-cache@8.0.0:
     dependencies:
       flat-cache: 4.0.1
@@ -10529,6 +10620,8 @@ snapshots:
 
   graphemer@1.4.0: {}
 
+  grid-index@1.1.0: {}
+
   gzip-size@7.0.0:
     dependencies:
       duplexer: 0.1.2
@@ -11125,6 +11218,8 @@ snapshots:
 
   lodash.camelcase@4.3.0: {}
 
+  lodash.clonedeep@4.5.0: {}
+
   lodash.debounce@4.0.8: {}
 
   lodash.defaults@4.2.0: {}
@@ -11180,6 +11275,45 @@ snapshots:
     dependencies:
       semver: 6.3.1
 
+  map-gl-indoor@0.5.0(mapbox-gl@3.5.2):
+    dependencies:
+      '@turf/bbox': 6.5.0
+      '@turf/destination': 6.5.0
+      '@turf/distance': 6.5.0
+      mapbox-gl: 3.5.2
+
+  mapbox-gl@3.5.2:
+    dependencies:
+      '@mapbox/jsonlint-lines-primitives': 2.0.2
+      '@mapbox/mapbox-gl-supported': 3.0.0
+      '@mapbox/point-geometry': 0.1.0
+      '@mapbox/tiny-sdf': 2.0.6
+      '@mapbox/unitbezier': 0.0.1
+      '@mapbox/vector-tile': 1.3.1
+      '@mapbox/whoots-js': 3.1.0
+      '@types/geojson': 7946.0.14
+      '@types/mapbox__vector-tile': 1.3.4
+      cheap-ruler: 4.0.0
+      csscolorparser: 1.0.3
+      earcut: 3.0.0
+      fflate: 0.8.2
+      geojson-vt: 4.0.2
+      gl-matrix: 3.4.3
+      grid-index: 1.1.0
+      kdbush: 4.0.2
+      lodash.clonedeep: 4.5.0
+      murmurhash-js: 1.0.0
+      pbf: 3.3.0
+      potpack: 2.0.0
+      quickselect: 3.0.0
+      rw: 1.3.3
+      serialize-to-js: 3.1.2
+      supercluster: 8.0.1
+      tiny-lru: 11.2.11
+      tinyqueue: 3.0.0
+      tweakpane: 4.0.4
+      vt-pbf: 3.1.3
+
   maplibre-gl@4.5.1:
     dependencies:
       '@mapbox/geojson-rewind': 0.5.2
@@ -12887,6 +13021,8 @@ snapshots:
     dependencies:
       randombytes: 2.1.0
 
+  serialize-to-js@3.1.2: {}
+
   serve-placeholder@2.0.2:
     dependencies:
       defu: 6.1.4
@@ -13417,6 +13553,8 @@ snapshots:
 
   tiny-invariant@1.3.3: {}
 
+  tiny-lru@11.2.11: {}
+
   tinyqueue@2.0.3: {}
 
   tinyqueue@3.0.0: {}
@@ -13482,6 +13620,8 @@ snapshots:
       safe-buffer: 5.2.1
     optional: true
 
+  tweakpane@4.0.4: {}
+
   type-check@0.4.0:
     dependencies:
       prelude-ls: 1.2.1
diff --git a/webclient/public/example.geojson b/webclient/public/example.geojson
new file mode 100644
index 000000000..e044326e1
--- /dev/null
+++ b/webclient/public/example.geojson
@@ -0,0 +1,3690 @@
+{
+  "type": "FeatureCollection",
+  "features": [
+    {
+      "type": "Feature",
+      "id": "way/-1",
+      "properties": {
+        "building": "residential",
+        "levels": "5",
+        "min_level": "-1",
+        "max_level": "3",
+        "id": "way/-1"
+      },
+      "geometry": {
+        "type": "Polygon",
+        "coordinates": [
+          [
+            [8.3909479, 49.0332499],
+            [8.3909058, 49.0332322],
+            [8.3909184, 49.0332192],
+            [8.3908934, 49.0332088],
+            [8.3909449, 49.0331556],
+            [8.3909446, 49.0331554],
+            [8.390893, 49.0332086],
+            [8.3908739, 49.0332006],
+            [8.3908613, 49.0332136],
+            [8.3908192, 49.0331959],
+            [8.3908318, 49.0331829],
+            [8.3908068, 49.0331725],
+            [8.3908583, 49.0331193],
+            [8.390858, 49.0331192],
+            [8.3908064, 49.0331723],
+            [8.3907873, 49.0331643],
+            [8.3907747, 49.0331773],
+            [8.3907326, 49.0331597],
+            [8.3907452, 49.0331467],
+            [8.3907202, 49.0331362],
+            [8.3907717, 49.033083],
+            [8.3907714, 49.0330829],
+            [8.3907199, 49.0331361],
+            [8.3907007, 49.033128],
+            [8.3906881, 49.033141],
+            [8.390646, 49.0331234],
+            [8.3906586, 49.0331104],
+            [8.3906336, 49.0330999],
+            [8.3906851, 49.0330467],
+            [8.3906848, 49.0330466],
+            [8.3906333, 49.0330998],
+            [8.3906141, 49.0330918],
+            [8.3906015, 49.0331048],
+            [8.3905594, 49.0330871],
+            [8.390572, 49.0330741],
+            [8.3905275, 49.0330555],
+            [8.3905149, 49.0330685],
+            [8.3904728, 49.0330509],
+            [8.3904854, 49.0330378],
+            [8.3904604, 49.0330274],
+            [8.3905119, 49.0329742],
+            [8.3905116, 49.0329741],
+            [8.3904601, 49.0330272],
+            [8.3904409, 49.0330192],
+            [8.3904283, 49.0330322],
+            [8.3903862, 49.0330146],
+            [8.3903988, 49.0330016],
+            [8.3903738, 49.0329911],
+            [8.3904254, 49.0329379],
+            [8.390425, 49.0329378],
+            [8.3903735, 49.032991],
+            [8.3903543, 49.0329829],
+            [8.3903417, 49.0329959],
+            [8.3902996, 49.0329783],
+            [8.3903122, 49.0329653],
+            [8.3902872, 49.0329548],
+            [8.3903388, 49.0329017],
+            [8.3903384, 49.0329015],
+            [8.3902869, 49.0329547],
+            [8.3902677, 49.0329467],
+            [8.3902551, 49.0329597],
+            [8.390213, 49.032942],
+            [8.3902256, 49.032929],
+            [8.3902006, 49.0329186],
+            [8.3902522, 49.0328654],
+            [8.3902518, 49.0328652],
+            [8.3902003, 49.0329184],
+            [8.3901811, 49.0329104],
+            [8.3901685, 49.0329234],
+            [8.3901264, 49.0329058],
+            [8.390139, 49.0328928],
+            [8.3901135, 49.032882],
+            [8.390165, 49.0328289],
+            [8.3901797, 49.0328137],
+            [8.3901807, 49.0328141],
+            [8.390166, 49.0328293],
+            [8.3901701, 49.032831],
+            [8.3901818, 49.0328189],
+            [8.3902153, 49.0328329],
+            [8.3902035, 49.032845],
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+            [8.3902662, 49.0328499],
+            [8.3902673, 49.0328504],
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+            [8.3902567, 49.0328673],
+            [8.3902684, 49.0328551],
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+            [8.3902901, 49.0328813],
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+            [8.3903528, 49.0328862],
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+            [8.3903392, 49.0329018],
+            [8.3903433, 49.0329035],
+            [8.390355, 49.0328914],
+            [8.3903885, 49.0329054],
+            [8.3903767, 49.0329176],
+            [8.3904247, 49.0329377],
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+            [8.3904299, 49.0329398],
+            [8.3904416, 49.0329277],
+            [8.3904751, 49.0329417],
+            [8.3904633, 49.0329538],
+            [8.3905113, 49.0329739],
+            [8.390526, 49.0329588],
+            [8.390527, 49.0329592],
+            [8.3905123, 49.0329744],
+            [8.3905164, 49.0329761],
+            [8.3905282, 49.032964],
+            [8.3905617, 49.032978],
+            [8.3905499, 49.0329901],
+            [8.3905977, 49.0330101],
+            [8.3906124, 49.032995],
+            [8.3906135, 49.0329954],
+            [8.3905988, 49.0330106],
+            [8.390603, 49.0330124],
+            [8.3906148, 49.0330002],
+            [8.3906483, 49.0330142],
+            [8.3906365, 49.0330264],
+            [8.3906845, 49.0330465],
+            [8.3906992, 49.0330313],
+            [8.3907002, 49.0330317],
+            [8.3906855, 49.0330469],
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