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Map Viewer

The map viewer provides an interactive mapping interface for visualizing spatial data.

Overview

The map viewer (view_map.php) displays multiple datasets on an interactive map with full analysis capabilities.

Features

Map Display

  • Multiple basemap options
  • Layer management
  • Zoom and pan controls
  • Feature identification
  • Coordinate display
  • Scale bar

Layer Management

  • Add/remove layers
  • Layer visibility toggle
  • Layer opacity control
  • Layer ordering
  • Layer grouping

Styling

  • Point styling
  • Line styling
  • Polygon styling
  • Graduated colors
  • Categorical colors
  • Custom styles

Analysis Tools

Integrated analysis panel with:

  • Hot spot analysis
  • Outlier detection
  • KDE (Kernel Density Estimation)
  • Clustering
  • Buffer analysis
  • Nearest neighbor
  • Overlay operations
  • Raster tools

Basemaps

Available basemap options:

  • OpenStreetMap
  • CartoDB Positron
  • CartoDB Dark Matter
  • CartoDB Voyager
  • ESRI World Imagery
  • Custom WMS layers

Interaction

Feature Identification

  • Click features to view details
  • Popup display with attributes
  • Link to feature detail pages

Drawing Tools

  • Draw polygons for clipping
  • Draw lines for profiles
  • Draw points for analysis
  • Measure distances and areas

Spatial Queries

  • Query by location
  • Query by attributes
  • Spatial filters
  • Buffer queries

Related Documentation