カスタムブランドマップのスタイリング方法: ダークモード、ブランドカラー、透かしなし

{
  "version": 8,
  "name": "My Brand Style",
  "sources": { ... },
  "glyphs": "https://cdn.mapmetrics-atlas.net/basemaps-assets/fonts/{fontstack}/{range}.pbf",
  "sprite": "https://cdn.mapmetrics-atlas.net/basemaps-assets/sprites/v4/light",
  "layers": [ ... ]
}

{
  "version": 8,
  "name": "Brand Base",
  "sources": {
    "mapatlas": {
      "type": "vector",
      "tiles": ["https://gateway.mapmetrics-atlas.net/planet20251013/{z}/{x}/{y}.mvt?token=YOUR_API_KEY"],
      "minzoom": 0,
      "maxzoom": 14
    }
  },
  "glyphs": "https://cdn.mapmetrics-atlas.net/basemaps-assets/fonts/{fontstack}/{range}.pbf",
  "sprite": "https://cdn.mapmetrics-atlas.net/basemaps-assets/sprites/v4/light",
  "layers": [
    {
      "id": "background",
      "type": "background",
      "paint": { "background-color": "#f5f0eb" }
    }
  ]
}

{
  "id": "water",
  "type": "fill",
  "source": "mapatlas",
  "source-layer": "water",
  "paint": {
    "fill-color": "#0d3b66",
    "fill-opacity": 1
  }
}

{
  "id": "road-major",
  "type": "line",
  "source": "mapatlas",
  "source-layer": "transportation",
  "filter": ["==", "class", "primary"],
  "layout": {
    "line-join": "round",
    "line-cap": "round"
  },
  "paint": {
    "line-color": "#3a3a5c",
    "line-width": ["interpolate", ["linear"], ["zoom"], 10, 1, 16, 4]
  }
}

{
  "id": "road-highlighted",
  "type": "line",
  "source": "mapatlas",
  "source-layer": "transportation",
  "filter": ["==", "class", "primary"],
  "paint": {
    "line-color": "#97C70A",
    "line-width": 3,
    "line-opacity": 0.8
  }
}

{
  "id": "brand-poi",
  "type": "symbol",
  "source": "mapatlas",
  "source-layer": "poi",
  "layout": {
    "icon-image": "brand-pin",
    "icon-size": 1.2,
    "text-field": ["get", "name"],
    "text-font": ["Inter Bold", "Noto Sans Regular"],
    "text-size": 12,
    "text-offset": [0, 1.5],
    "text-anchor": "top"
  },
  "paint": {
    "text-color": "#97C70A",
    "text-halo-color": "#1a1a2e",
    "text-halo-width": 1
  }
}

{
  "glyphs": "https://your-cdn.com/fonts/{fontstack}/{range}.pbf"
}

"text-font": ["Inter Bold", "Noto Sans Regular"]

const map = new mapmetricsgl.Map({
  container: 'map',
  style: 'https://gateway.mapmetrics-atlas.net/styles/?fileName=YOUR_STYLE_ID/style.json&token=YOUR_API_KEY',
  center: [4.9041, 52.3676],
  zoom: 12,
  attributionControl: false,  // デフォルトの帰属表示コントロールを削除します
});

map.addControl(
  new mapmetricsgl.AttributionControl({
    customAttribution: 'Map data © OpenStreetMap contributors',
    compact: true,
  }),
  'bottom-left'
);

import { useEffect, useRef, useState } from 'react';
import mapmetricsgl from '@mapmetrics/mapmetrics-gl';
import '@mapmetrics/mapmetrics-gl/dist/mapmetrics-gl.css';

const STYLES = {
  light: 'https://gateway.mapmetrics-atlas.net/styles/?fileName=YOUR_STYLE_ID/style.json&token=YOUR_API_KEY',
  dark:  'https://gateway.mapmetrics-atlas.net/styles/?fileName=YOUR_DARK_STYLE_ID/style.json&token=YOUR_API_KEY',
};

export function BrandedMap({ center = [4.9041, 52.3676], zoom = 12 }) {
  const containerRef = useRef(null);
  const mapRef       = useRef(null);
  const [theme, setTheme] = useState('light');

  useEffect(() => {
    const map = new mapmetricsgl.Map({
      container:        containerRef.current,
      style:            STYLES.light,
      center,
      zoom,
      attributionControl: false,
    });

    map.addControl(
      new mapmetricsgl.AttributionControl({ compact: true }),
      'bottom-left'
    );

    mapRef.current = map;
    return () => map.remove();
  }, []);

  useEffect(() => {
    if (mapRef.current) {
      mapRef.current.setStyle(STYLES[theme]);
    }
  }, [theme]);

  return (
    <div style={{ position: 'relative' }}>
      <div ref={containerRef} style={{ width: '100%', height: '500px' }} />
      <button
        onClick={() => setTheme(t => t === 'light' ? 'dark' : 'light')}
        style={{
          position: 'absolute',
          top: 12,
          right: 12,
          padding: '8px 16px',
          background: theme === 'dark' ? '#ffffff' : '#1a1a2e',
          color:      theme === 'dark' ? '#1a1a2e' : '#ffffff',
          border: 'none',
          borderRadius: 6,
          cursor: 'pointer',
          zIndex: 1,
        }}
      >
        {theme === 'light' ? 'Dark mode' : 'Light mode'}
      </button>
    </div>
  );
}

const map = new mapmetricsgl.Map({
  container: 'map',
  style: 'https://your-cdn.com/styles/brand-dark.json',
  center: [4.9041, 52.3676],
  zoom: 12,
});