# Polish Geospatial Layers Integration Guide

## 🎯 All 4+ Polish Layers Successfully Implemented!

This document shows how to use the comprehensive Polish geospatial layers that have been converted from your OpenLayers implementation to work with Leaflet/React.

## 📦 Available Components

### Complete Map Components
- `ComprehensivePolishMap.js` - Full-featured map with all layers
- `AdvancedPolishOrthophotoMap.js` - Advanced map with overlays
- `PolishOrthophotoMap.js` - Basic map with Polish orthophoto

### Individual Layer Components
- `PolishGeoLayers.js` - Individual layer components for custom integration

## 🗺️ Implemented Layers

### Base Layers (WMTS)
1. **Polish Orthophoto Standard Resolution** ✅
   - URL: `https://mapy.geoportal.gov.pl/wss/service/PZGIK/ORTO/WMTS/StandardResolution`
   - Format: JPEG, Max Zoom: 19

2. **Polish Orthophoto High Resolution** ✅
   - URL: `https://mapy.geoportal.gov.pl/wss/service/PZGIK/ORTO/WMTS/HighResolution`
   - Format: JPEG, Max Zoom: 19

### Overlay Layers (WMS)

3. **Polish Cadastral Data (Działki)** ✅
   - Service: GUGiK Krajowa Integracja Ewidencji Gruntów
   - Layers: Property boundaries, parcels, buildings
   - Format: PNG (transparent)

4. **Polish Spatial Planning (MPZT)** ✅
   - Service: Geoportal Spatial Planning Integration
   - Layers: Zoning, planning boundaries, land use
   - Format: PNG (transparent)

### Additional LP-Portal Layers
5. **LP-Portal Roads** ✅
6. **LP-Portal Street Names** ✅
7. **LP-Portal Property Parcels** ✅
8. **LP-Portal Survey Markers** ✅

## 🚀 How to Use

### Option 1: Use Complete Component
```jsx
import ComprehensivePolishMap from '../components/ui/ComprehensivePolishMap';

export default function MyPage() {
  return (
    <div style={{ height: '500px' }}>
      <ComprehensivePolishMap 
        center={[50.0647, 19.9450]} // Krakow
        zoom={14}
        markers={[]}
        showLayerControl={true}
      />
    </div>
  );
}
```

### Option 2: Use Individual Layers
```jsx
import { MapContainer, LayersControl } from 'react-leaflet';
import { 
  PolishOrthophotoStandard, 
  PolishCadastralData,
  LPPortalRoads 
} from '../components/ui/PolishGeoLayers';

export default function CustomMap() {
  const { BaseLayer, Overlay } = LayersControl;
  
  return (
    <MapContainer center={[50.0647, 19.9450]} zoom={14}>
      <LayersControl>
        <BaseLayer checked name="Polish Orthophoto">
          <PolishOrthophotoStandard />
        </BaseLayer>
        
        <Overlay name="Property Boundaries">
          <PolishCadastralData />
        </Overlay>
        
        <Overlay name="Roads">
          <LPPortalRoads />
        </Overlay>
      </LayersControl>
    </MapContainer>
  );
}
```

## 📍 Test Locations

Good locations to test the layers:
- **Kraków**: [50.0647, 19.9450] - Historic center
- **Warszawa**: [52.2297, 21.0122] - Capital city
- **Gdańsk**: [54.3520, 18.6466] - Port city
- **Wrocław**: [51.1079, 17.0385] - University city
- **Poznań**: [52.4064, 16.9252] - Industrial center

## ⚙️ Technical Details

### WMTS Implementation
- Uses proper KVP (Key-Value Pair) URL format
- EPSG:3857 coordinate system for Leaflet compatibility
- Standard tile size (256x256)

### WMS Implementation
- Transparent PNG overlays
- Proper parameter configuration
- Tiled requests for better performance

### Performance Considerations
- All layers use standard web projections
- Optimized for React/Leaflet
- Minimal additional dependencies (only proj4 for future enhancements)

## 🎉 Success!

All layers from your OpenLayers implementation are now working in your Leaflet-based React/Next.js project:

✅ Polish Orthophoto (Standard & High-Res)
✅ Polish Cadastral Data (Property boundaries)
✅ Polish Spatial Planning (Zoning data)  
✅ LP-Portal Municipal Data (Roads, names, parcels, surveys)

The implementation maintains the same functionality as your original OpenLayers code while being fully compatible with your existing React/Leaflet architecture.

## 📱 Test Pages Available

- `/comprehensive-polish-map` - Full featured map
- `/test-polish-map` - Basic comparison
- `/test-improved-wmts` - Technical testing