Apply dictionary renderer to graphics overlay

Create graphics from an XML file with key-value pairs for each graphic and display the military symbols using a MIL-STD-2525D web style in 3D.

Use case

Use a dictionary renderer on a graphics overlay to display more transient data, such as military messages coming through a local tactical network.

How to use the sample

Open the sample and view the military symbols on the scene.

How it works

1. Create a new DictionarySymbolStyle object with a protal item and set the style’s draw rule configuration to “ORDERED ANCHOR POINTS”.
2. Create a new DictionaryRenderer object with the dictionary symbol style.
3. Create an instance of GraphicsOverlay.
4. Set the dictionary renderer to the graphics overlay’s renderer.
5. Parse the local XML file, creating a map of key/value pairs for each block of attributes.
6. Create an instance of Graphic for each attribute.
7. Use the _wkid key to get the geometry’s spatial reference.
8. Use the _control_points key to get the geometry’s shape.
9. Add the graphics to the graphics overlay.

Relevant API

• DictionaryRenderer
• DictionarySymbolStyle
• GraphicsOverlay

About the data

The sample uses the Joint Military Symbology MIL-STD-2525D dictionary style from ArcGIS Online. This ArcGIS Web Style is for use to build custom applications that incorporate the MIL-STD-2525D symbol dictionary. This style supports a configuration for modeling locations as ordered anchor points or full geometries.

A local XML file containing messages with MIL-STD-2525D fields for military symbology (MIL-STD-2525D Messages 100.13.0) is also used. This is downloaded from ArcGIS Online automatically.

Tags

defense, military, situational awareness, tactical, visualization