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ui(map): red overlay for excluded Bezirke, drop Leaflet attribution prefix

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- Excluded-district shading switches from amber/yellow to a soft red
  (fill #fca5a5 at 0.3 opacity, stroke #c84545) — reads as "blocked"
  rather than "highlighted", which matches the meaning better.
- Drop the "Leaflet" attribution prefix (not legally required).
  Keep "© OpenStreetMap · © CARTO" — ODbL and CARTO's basemap terms
  both require attribution.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
EiSiMo 2026-04-23 13:41:12 +02:00
parent 2ebbf76a80
commit 6ad6565cf2
1 changed files with 10 additions and 7 deletions
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17
web/static/map.js
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@ -155,9 +155,9 @@ function renderMarkers(payload) {
ensureDistrictLayer(selectedDistricts); ensureDistrictLayer(selectedDistricts);
} }
// EXPERIMENT: faintly highlight Bezirke the user's filter EXCLUDES so the // Faintly highlight Bezirke the user's filter EXCLUDES so the active
// active selection is obvious at a glance. When the filter is empty (no // selection is obvious at a glance. When the filter is empty (no district
// district narrowing) the layer is hidden — nothing is excluded. // narrowing) the layer is hidden — nothing is excluded.
function districtStyle(selectedSet) { function districtStyle(selectedSet) {
const showShading = selectedSet.size > 0; const showShading = selectedSet.size > 0;
return (feature) => { return (feature) => {
@ -165,12 +165,12 @@ function districtStyle(selectedSet) {
const excluded = showShading && !selectedSet.has(name); const excluded = showShading && !selectedSet.has(name);
return { return {
stroke: excluded, stroke: excluded,
color: "#c89318", color: "#c84545",
weight: 1, weight: 1,
opacity: 0.55, opacity: 0.6,
fill: excluded, fill: excluded,
fillColor: "#fde68a", fillColor: "#fca5a5",
fillOpacity: 0.35, fillOpacity: 0.3,
}; };
}; };
} }
@ -217,6 +217,9 @@ function buildMap(el) {
touchZoom: false, touchZoom: false,
keyboard: false, keyboard: false,
}).setView(BERLIN_CENTER, BERLIN_ZOOM); }).setView(BERLIN_CENTER, BERLIN_ZOOM);
// Drop the "Leaflet" prefix — not legally required. OSM (ODbL) and CARTO's
// basemap terms both REQUIRE attribution, so those credits stay.
mapInstance.attributionControl.setPrefix(false);
// CartoDB Voyager — clean, Google-Maps-ish base style. // CartoDB Voyager — clean, Google-Maps-ish base style.
L.tileLayer("https://{s}.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}{r}.png", { L.tileLayer("https://{s}.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}{r}.png", {
attribution: "© OpenStreetMap · © CARTO", attribution: "© OpenStreetMap · © CARTO",