1. Leaflet lightweight WebGIS front-end class library

Leaflet is a modern, open source JavaScript library developed to build a mobile device-friendly interactive map. It was developed by a team of professional contributors led by Vladimir Agafonkin. It has a small amount of code, but has most of the functions that developers can do to develop online maps. Leaflet design adheres to the idea of simplicity, high performance and good availability, works efficiently on all major desktop and mobile platforms, takes advantage of HTML5 and CSS3 in modern browsers, and also supports access to older browsers. Support for plug-in extensions, with a friendly, easy-to-use API documentation and a simple, readable source code.

• 1.1. Introduction to Leaflet
  • 1.1.1. Brief introduction
  • 1.1.2. Leaflet getting started Guid
  • 1.1.3. Prepare the page
  • 1.1.4. Create a map
  • 1.1.5. Dot mark, circle mark, and polygon mark
  • 1.1.6. Use pop-up window
  • 1.1.7. Deal with events
• 1.2. Custom callout icon
  • 1.2.1. Preparing images
  • 1.2.2. Create icon
  • 1.2.3. Define icon class
• 1.3. Use GeoJSON and Leaflet
  • 1.3.1. Introduction of GeoJSON
  • 1.3.2. GeoJSON Layer
  • 1.3.3. style options
• 1.4. Interactive Choropleth Map
  • 1.4.1. Data source
  • 1.4.2. Basic states diagram
  • 1.4.3. Adding colors
  • 1.4.4. Adding Interaction
  • 1.4.5. Custom information control
  • 1.4.6. Custom legend control
• 1.5. Layer group and layer control
  • 1.5.1. Layer group
  • 1.5.2. Layer control
• 1.6. Zoom Level
  • 1.6.1. Shape of the earth
  • 1.6.2. Notes on proportions
  • 1.6.3. Control zoom
  • 1.6.4. Fractional scaling
• 1.7. Use WMS with TMS services
  • 1.7.1. WMS in Leaflet
  • 1.7.2. Information for GIS users of WMS services
  • 1.7.3. TMS in Leaflet
• 1.8. Use the map panes
  • 1.8.1. Default value is not always appropriate
  • 1.8.2. Custom panes