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Geography Online Viewer

Geography Viewer is a web application that allows users to view and visualize geographic data files online, including GeoJSON, KML formats, displaying geographic features on a map.

This geography viewer supports multiple geographic data formats and can display geographic features such as points, lines, and polygons on a map, providing interactive map browsing functionality.

What are Geographic Data Formats?

Geographic data formats are used to store and transmit geospatial information. Common formats include:

• GeoJSON：JSON-based geographic data format, widely used in web applications
• KML (Keyhole Markup Language)：XML format used by Google Earth
• KMZ：Compressed KML file
• Shapefile：Geographic data format developed by ESRI (requires conversion)

What can Geography Viewer do?

• View geographic data files such as GeoJSON, KML online
• Visualize geographic features (points, lines, polygons) on a map
• Interactive map browsing and zooming
• View attributes and information of geographic features
• Automatically fit map extent
• All operations are completed locally in the browser, protecting data privacy

Usage Instructions

1. Click the upload area or drag and drop a geographic data file to the upload area

2. After the file loads, the map will automatically display geographic features

3. Use mouse drag to move the map, scroll wheel to zoom

4. Click features on the map to view detailed information

5. Use the "Fit to Window" button to automatically adjust the map extent