Integrating OpenLayers with GeoExt

PDX-OSGEO: Session 5 - Integrating OpenLayers with GeoExt

Percy gives a guided tour of an Openlayers + GeoExt App developed for the Metropolitan Knowledge Network (http://mkn.research.pdx.edu)

What is a Layer in OpenLayers? Javascript definition of where a data service is, and parameters for defining what data you want to retrieve from hat service, and how you want to control or display it?

Tour of How to set up all the map components in OpenLayers

Tour of GeoExt: Load ExtJS Library, Load GeoExt library

Use GeoExt to provide map interface components like Legend, Layer Opacity slider, attribute display tables (including sorting of columns), zoom to feature functions (grid select model)

check out the interface2.js file for the simple interface Percy was touring through.. Quickie list of topics for future PDX-OSGEO mtgs

in depth:

- GRASS - GeoExt - Python

Percy proposed a quarterly in depth friday - maybe we should poll on the popularity of which topic should be first