colors for choropleth chart according to range

Hi All,

Thanks all for creating a very useful js library. Currently i am working on a project based on choropleth map. I am facing trouble in fixing color Domains

Could anyone help me our for adjusting colors based on range of filtered values.The function in the current library does not seem to be of much help

chart.colorDomain(function() {
    [dc.utils.groupMin(this.group(), this.valueAccessor()),
     dc.utils.groupMax(this.group(), this.valueAccessor())];
});

If a project based on flexible colorDomains has been created please guide me to it.

Thanks all

[conradlee]

The working example for this problem seems to be here: https://groups.google.com/forum/#!msg/dc-js-user-group/6_EzrHSRQ30/r0_lPT-pBsAJ

var chartX = new dc.geoChoroplethChart("chartX");
chartX.on("preRender", function(chart) {
    chart.colorDomain(d3.extent(chart.data(), chart.valueAccessor()));
});
chartX.on("preRedraw", function(chart) {
        chart.colorDomain(d3.extent(chart.data(), chart.valueAccessor()));
});

[nicornk]

Has somebody a working example for this? Thank you!