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# Map Viewer
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The map viewer provides an interactive mapping interface for visualizing spatial data.
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## Overview
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The map viewer (`view_map.php`) displays multiple datasets on an interactive map with full analysis capabilities.
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## Features
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### Map Display
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- Multiple basemap options
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- Layer management
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- Zoom and pan controls
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- Feature identification
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- Coordinate display
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- Scale bar
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### Layer Management
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- Add/remove layers
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- Layer visibility toggle
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- Layer opacity control
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- Layer ordering
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- Layer grouping
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### Styling
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- Point styling
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- Line styling
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- Polygon styling
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- Graduated colors
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- Categorical colors
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- Custom styles
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### Analysis Tools
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Integrated analysis panel with:
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- Hot spot analysis
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- Outlier detection
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- KDE (Kernel Density Estimation)
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- Clustering
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- Buffer analysis
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- Nearest neighbor
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- Overlay operations
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- Raster tools
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## Basemaps
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Available basemap options:
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- OpenStreetMap
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- CartoDB Positron
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- CartoDB Dark Matter
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- CartoDB Voyager
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- ESRI World Imagery
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- Custom WMS layers
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## Interaction
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### Feature Identification
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- Click features to view details
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- Popup display with attributes
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- Link to feature detail pages
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### Drawing Tools
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- Draw polygons for clipping
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- Draw lines for profiles
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- Draw points for analysis
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- Measure distances and areas
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### Spatial Queries
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- Query by location
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- Query by attributes
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- Spatial filters
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- Buffer queries
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## Related Documentation
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- [Dataset Viewer](dataset-viewer.md)
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- [Analysis Panel](analysis-panel.md)
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- [Dashboard Builder](dashboard-builder.md)
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