Log In
Home
Support
Demos
Documentation
Blogs
Training
Webinars
[Expand]Welcome to DevExpress .NET Documentation
[Expand]WinForms Controls
[Expand]ASP.NET Controls and MVC Extensions
[Expand]ASP.NET Bootstrap Controls
[Expand]ASP.NET Core Bootstrap Controls
[Collapse]WPF Controls
  Prerequisites
 [Expand]What's Installed
 [Expand]Common Concepts
 [Expand]MVVM Framework
 [Collapse]Controls and Libraries
  [Expand]Windows and Utility Controls
   Dialogs, Notifications and Panels
   Reporting
  [Expand]Data Grid
  [Expand]Ribbon, Bars and Menu
  [Expand]Charts Suite
  [Expand]Pivot Grid
  [Expand]Scheduler
  [Expand]Spreadsheet
  [Expand]Rich Text Editor
  [Expand]Tree List
  [Expand]Gauge Controls
  [Collapse]Map Control
   [Expand]Getting Started
    Layers
   [Expand]Coordinate Systems
   [Expand]Map Image Data
   [Expand]GIS Data
   [Expand]Vector Data
   [Expand]Visual Elements
   [Expand]End-User Interaction
   [Collapse]Examples
    [Expand]General
    [Expand]Map Image Data
    [Expand]GIS Data
    [Collapse]Vector Data
     [Expand]Providing Data
     [Collapse]Colorize Data
       How to: Colorize Map Contours Using the Choropleth Colorizer
       How to: Colorize Map Contours Using the Graph Colorizer
       How to: Colorize Map Items Using the Key Color Colorizer
     [Expand]Customize Data Appearance
    [Expand]Printing and Exporting
  [Expand]Layout Management
  [Expand]Windows Modern UI
  [Expand]Printing-Exporting
  [Expand]Data Editors
  [Expand]Navigation Controls
  [Expand]Spell Checker
  [Expand]Property Grid
  [Expand]PDF Viewer
  [Expand]TreeMap Control
  [Expand]Diagram Control
  [Expand]Scheduler (legacy)
 [Expand]Scaffolding Wizard
 [Expand]Localization
  Redistribution and Deployment
  Get More Help
 [Expand]API Reference
[Expand]Xamarin Controls
[Expand]Windows 10 App Controls
[Expand]Document Server
[Expand]Reporting
[Expand]Report Server
[Expand]Dashboard
[Expand]eXpressApp Framework
[Expand]CodeRush
[Expand]CodeRush Classic
[Expand]Cross-Platform Core Libraries
[Expand]Tools and Utilities
 End-User Documentation

How to: Colorize Map Contours Using the Choropleth Colorizer

Show Me

A complete sample project is available in the DevExpress Code Examples database at http://www.devexpress.com/example=E4587.

This example demonstrates how to paint each map contour in a specific color, based on population data from the Shapefile.

To do this, create a colorizer and assign it to the VectorLayer.Colorizer property.

To access GDP information from Shapefiles, assign a ShapeAttributeValueProvider object with the specified attribute name (NamedAttributeProviderBase.AttributeName) to the ChoroplethColorizer.ValueProvider property.

Then, specify range stops (data splits in ranges) for the colorizer using the ChoroplethColorizer.RangeStops property.

Finally, add the desired set of colors to the ColorCollection object that is accessed using the MapColorizer.Colors property. The colorizer automatically associates each color with the specified data range to colorize map shapes.

Expanded See Also

Is this topic helpful?​​​​​​​