Question

I would like to update one of the variables in a vector layer class after the original call to the class

OpenLayers.Layer.Observations = OpenLayers.Class(
  OpenLayers.Layer.Vector, {

where one of the options is the initialize method:

initialize: function(name, displayStyle, options) {

It seems like you can’t just override the initialize method…

var lyrObs = new OpenLayers.Layer.Observations("Observations",...

lyrObs.initialize(...)

Is there another way to update that initialize methods variable?

Answer 1

Look at the source! There are many examples. What you need is something like this:

OpenLayers.Layer.Observations = OpenLayers.Class(OpenLayers.Layer.Vector, {
    initialize: function(…) {
        OpenLayers.Layer.Vector.prototype.initialize.apply(this, arguments);
        // Do what you want here
    }
});