Extending Maps Tutorial
The OpenLayers Preset interface does not offer you full control over the Drupal OpenLayers maps. This is because it is difficult to
Layer Handlers
This page describes the layers handlers that are available in the core OpenLayers module and the OpenLayers Layers module. (needs work)
OpenLayers 1.x API
The OpenLayers Drupal module has an extensive API. Documentation can be found in the module itself, after you have installed the Advanced
Variable Styling
The following describes how to get variable styling into your OpenLayers 1.x map. Please note that there is not any way to do variable