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