rene
96119e02ef
- Facade: Polyline (geojson line-source, addTo/setLatLngs/getBounds/remove), clusterGroup,
marker.getLatLng, map.distance(Haversine), on('click') normalisiert e.latlng aus e.lngLat, _ll objekttauglich
- events: L.markerClusterGroup→UI.map.clusterGroup
- walks: window.L-Guard, L.featureGroup→UI.map.featureGroup, fitBounds ohne .pad
- routes: L.polyline/L.circleMarker→UI.map.*, navMap/Pfeil-Marker→svgMarker, latLngBounds→coords,
trimMap distance/click, Mini-Vorschauen auf SVG (kein WebGL-Limit, kein OSM-Raster)
218 lines
10 KiB
JavaScript
218 lines
10 KiB
JavaScript
// Leaflet-kompatible MapLibre-Facade für die SEITENKARTEN (Giftköder, Verlorene,
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// Events, Gassi, Routen). Liefert Wrapper, die die von den Seiten genutzte Leaflet-
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// API nachbilden (setView/fitBounds/invalidateSize/addTo/bindPopup/openPopup/on/remove),
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// sodass die Seiten fast unverändert auf demselben GL-Style (MapGLStyle) laufen.
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// Koordinaten nach außen [lat,lon] (Leaflet-Konvention), intern MapLibre [lng,lat].
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(function () {
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'use strict';
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// [lat,lon]-Array ODER {lat,lng}-Objekt → [lng,lat] für MapLibre.
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function _ll(latlon) {
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if (latlon && latlon.lat != null) return [latlon.lng, latlon.lat];
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return [latlon[1], latlon[0]];
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}
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// ---- Map-Wrapper ----
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function _wrapMap(map) {
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return {
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_gl: map,
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_isGL: true,
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setView: function (latlon, zoom) { map.jumpTo({ center: _ll(latlon), zoom: zoom }); return this; },
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flyTo: function (latlon, zoom, opts) {
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map.flyTo({ center: _ll(latlon), zoom: zoom, duration: opts && opts.duration ? opts.duration * 1000 : 1000 });
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return this;
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},
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panTo: function (latlon) { map.panTo(_ll(latlon)); return this; },
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fitBounds: function (b, opts) {
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var bb = _toBounds(b);
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if (bb) {
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var pad = 40;
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if (opts && opts.padding) pad = Array.isArray(opts.padding) ? opts.padding[0] : opts.padding;
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map.fitBounds(bb, { padding: pad, maxZoom: opts && opts.maxZoom, duration: 0 });
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}
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return this;
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},
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invalidateSize: function () { map.resize(); return this; },
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removeLayer: function (layer) { if (layer && layer.remove) layer.remove(); return this; },
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addLayer: function (layer) { if (layer && layer.addTo) layer.addTo(this); return this; },
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hasLayer: function () { return true; },
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remove: function () { try { map.remove(); } catch (e) {} },
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on: function (ev, fn) {
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if (ev === 'click') {
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map.on('click', function (e) { if (e.lngLat && !e.latlng) e.latlng = { lat: e.lngLat.lat, lng: e.lngLat.lng }; fn(e); });
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} else { map.on(ev, fn); }
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return this;
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},
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off: function (ev, fn) { map.off(ev, fn); return this; },
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getZoom: function () { return map.getZoom(); },
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getCenter: function () { var c = map.getCenter(); return { lat: c.lat, lng: c.lng }; },
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// Distanz in Metern (Haversine) — Ersatz für Leaflets map.distance.
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distance: function (a, b) {
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var la = a.lat != null ? a.lat : a[0], lo = a.lng != null ? a.lng : a[1];
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var lb = b.lat != null ? b.lat : b[0], ob = b.lng != null ? b.lng : b[1];
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var R = 6371000, p1 = la * Math.PI / 180, p2 = lb * Math.PI / 180;
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var dp = (lb - la) * Math.PI / 180, dl = (ob - lo) * Math.PI / 180;
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var x = Math.sin(dp / 2) * Math.sin(dp / 2) + Math.cos(p1) * Math.cos(p2) * Math.sin(dl / 2) * Math.sin(dl / 2);
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return 2 * R * Math.asin(Math.sqrt(x));
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},
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};
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}
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// Bounds aus: Array von [lat,lon] | featureGroup-Wrapper (_coords) | Leaflet-Bounds.
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function _toBounds(b) {
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if (!b) return null;
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var coords = null;
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if (Array.isArray(b)) coords = b;
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else if (b._coords) coords = b._coords;
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else if (typeof b.getSouthWest === 'function') {
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var sw = b.getSouthWest(), ne = b.getNorthEast();
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return new maplibregl.LngLatBounds([sw.lng, sw.lat], [ne.lng, ne.lat]);
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}
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if (!coords || !coords.length) return null;
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var bb = new maplibregl.LngLatBounds();
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coords.forEach(function (c) { bb.extend(_ll(c)); });
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return bb;
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}
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// ---- Marker-Wrapper (HTML-Marker; svgMarker + circleMarker) ----
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function _wrapMarker(lat, lon, el, anchor) {
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var m = new maplibregl.Marker({ element: el, anchor: anchor || 'center' }).setLngLat([lon, lat]);
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var wrap = {
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_gl: m,
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_el: el,
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addTo: function (mapWrap) { m.addTo(mapWrap && mapWrap._gl ? mapWrap._gl : mapWrap); return this; },
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bindPopup: function (html, opts) {
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m.setPopup(new maplibregl.Popup({ maxWidth: (opts && opts.maxWidth ? opts.maxWidth + 'px' : '260px'), closeButton: true, offset: 18 }).setHTML(html));
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return this;
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},
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openPopup: function () { var p = m.getPopup(); if (p && !p.isOpen()) m.togglePopup(); return this; },
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closePopup: function () { var p = m.getPopup(); if (p && p.isOpen()) m.togglePopup(); return this; },
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bindTooltip: function (t) { try { el.title = typeof t === 'string' ? t.replace(/<[^>]*>/g, '') : ''; } catch (e) {} return this; },
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on: function (ev, fn) {
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if (ev === 'click') el.addEventListener('click', function (e) { e.stopPropagation(); fn(e); });
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return this;
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},
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setLatLng: function (latlon) { m.setLngLat(_ll(latlon)); return this; },
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getLatLng: function () { var c = m.getLngLat(); return { lat: c.lat, lng: c.lng }; },
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setOpacity: function (o) { el.style.opacity = o; return this; },
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remove: function () { try { m.remove(); } catch (e) {} return this; },
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};
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return wrap;
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}
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// ---- Polyline-Wrapper (GL geojson line-source/-layer) ----
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var _seq = 0;
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function _toLngLat(p) { return (p && p.lat != null) ? [p.lng, p.lat] : [p[1], p[0]]; } // L.latLng | [lat,lon]
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function _wrapPolyline(latlngs, opts) {
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opts = opts || {};
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return {
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_latlngs: latlngs || [],
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_id: 'poly-' + (++_seq),
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_map: null,
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_opts: opts,
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_geo: function () { return { type: 'Feature', geometry: { type: 'LineString', coordinates: this._latlngs.map(_toLngLat) } }; },
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_ensure: function () {
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var self = this, m = self._map;
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var add = function () {
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if (!m.getSource(self._id)) m.addSource(self._id, { type: 'geojson', data: self._geo() });
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if (!m.getLayer(self._id)) m.addLayer({ id: self._id, type: 'line', source: self._id,
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layout: { 'line-cap': 'round', 'line-join': 'round' },
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paint: { 'line-color': self._opts.color || '#C4843A', 'line-width': self._opts.weight || 4, 'line-opacity': self._opts.opacity != null ? self._opts.opacity : 0.9 } });
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};
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if (m.isStyleLoaded && m.isStyleLoaded()) add(); else m.once('load', add);
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},
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addTo: function (mapWrap) { this._map = mapWrap && mapWrap._gl ? mapWrap._gl : mapWrap; this._ensure(); return this; },
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setLatLngs: function (lls) {
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this._latlngs = lls || [];
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if (this._map && this._map.getSource(this._id)) this._map.getSource(this._id).setData(this._geo());
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return this;
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},
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getBounds: function () { return { _coords: this._latlngs.map(function (p) { return (p && p.lat != null) ? [p.lat, p.lng] : p; }) }; },
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remove: function () {
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var m = this._map; if (!m) return this;
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if (m.getLayer(this._id)) m.removeLayer(this._id);
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if (m.getSource(this._id)) m.removeSource(this._id);
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return this;
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},
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};
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}
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// ---- Gruppe (Cluster-Ersatz: fügt Marker direkt hinzu; GL clustert Seitenkarten nicht) ----
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function _wrapGroup() {
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return {
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_markers: [], _map: null,
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addLayer: function (m) { this._markers.push(m); if (this._map) m.addTo(this._map); return this; },
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addLayers: function (ms) { (ms || []).forEach(this.addLayer, this); return this; },
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removeLayers: function (ms) { (ms || []).forEach(function (m) { m.remove(); }); this._markers = this._markers.filter(function (m) { return (ms || []).indexOf(m) === -1; }); return this; },
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addTo: function (mapWrap) { this._map = mapWrap; this._markers.forEach(function (m) { m.addTo(mapWrap); }); return this; },
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clearLayers: function () { this._markers.forEach(function (m) { m.remove(); }); this._markers = []; return this; },
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remove: function () { this.clearLayers(); this._map = null; return this; },
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};
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}
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// Element aus HTML-String (für svgMarker mit custom HTML).
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function _elFromHtml(html, size, anchorY) {
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var wrap = document.createElement('div');
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wrap.innerHTML = html;
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var el = wrap.firstElementChild || wrap;
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el.style.cursor = 'pointer';
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return el;
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}
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window.MapGLMini = {
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createMap: function (container, opts) {
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opts = opts || {};
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var el = typeof container === 'string' ? document.getElementById(container) : container;
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var center = opts.center || [51.1657, 10.4515];
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var map = new maplibregl.Map({
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container: el,
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style: MapGLStyle.build({ dark: !!opts.dark }),
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center: _ll(center), zoom: opts.zoom != null ? opts.zoom : 6,
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attributionControl: false, dragRotate: false, pitchWithRotate: false, maxZoom: 19,
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});
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map.touchZoomRotate.disableRotation();
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map.touchPitch.disable();
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try { el.style.touchAction = 'none'; } catch (e) {}
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if (opts.zoomControl !== false) map.addControl(new maplibregl.NavigationControl({ showCompass: false }), 'top-left');
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map.addControl(new maplibregl.AttributionControl({
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compact: true, customAttribution: '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors',
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}));
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return _wrapMap(map);
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},
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// svgMarker: custom HTML-Icon. opts: { size, anchorY }
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svgMarker: function (lat, lon, html, opts) {
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opts = opts || {};
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var el = _elFromHtml(html);
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// anchorY: Pixel von oben zum Ankerpunkt (Leaflet iconAnchor). 'bottom' wenn anchorY≈size.
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var anchor = 'center';
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if (opts.anchorY != null && opts.size) {
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anchor = opts.anchorY >= opts.size * 0.8 ? 'bottom' : 'center';
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}
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return _wrapMarker(lat, lon, el, anchor);
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},
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circleMarker: function (lat, lon, opts) {
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opts = opts || {};
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var r = opts.radius || 8;
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var el = document.createElement('div');
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el.style.cssText = 'width:' + (r * 2) + 'px;height:' + (r * 2) + 'px;border-radius:50%;background:' +
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(opts.fillColor || opts.color || '#3B82F6') + ';border:' + (opts.weight || 2) + 'px solid ' +
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(opts.color || '#fff') + ';opacity:' + (opts.fillOpacity != null ? opts.fillOpacity : 1) +
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';box-shadow:0 1px 4px rgba(0,0,0,.35);cursor:pointer';
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return _wrapMarker(lat, lon, el, 'center');
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},
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polyline: function (latlngs, opts) { return _wrapPolyline(latlngs, opts); },
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clusterGroup: function () { return _wrapGroup(); },
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// featureGroup: nur als Bounds-Container (markers = Array von Wrappern mit _gl.getLngLat()).
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featureGroup: function (markers) {
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var coords = (markers || []).map(function (m) {
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var ll = m && m._gl && m._gl.getLngLat ? m._gl.getLngLat() : null;
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return ll ? [ll.lat, ll.lng] : null;
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}).filter(Boolean);
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return { _coords: coords, getBounds: function () { return { _coords: coords }; }, addTo: function () { return this; } };
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},
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};
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})();
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