Core Concepts

Heron Concepts

To understand the concepts behind Heron see Heron Primer

Supporting Frameworks

Working with Heron, especially beyond its basic usage, requires background in the concepts behind GeoExt, ExtJS and OpenLayers. The GeoExt website has some excellent coverage on these toolkits. See further below.

GeoExt Tutorials

See the GeoExt tutorials.

ExtJS Primer

These are pointers on getting started with ExtJS with an emphasis on important concepts in GeoExt derived from ExtJS:

See the Ext Primer.

OpenLayers Primer

Essential OpenLayers concepts for working with GeoExt:

See the OpenLayers Primer.

• Heron Primer
  • What, Not How
  • Not an Island
  • Configuration Concepts
    • The Layout Tree
    • Which Properties ?
    • Fill, Embed or Float
    • Structuring Your Config
    • What to Include
    • Internationalization - i18n
    • To Be Continued