crossfilter: how to use crossfilters for start date and end date columns simultaneously

Question

I have a similar situation as in this question . Considering the same dataset, how can I perform this functionality through crossfilters. I am new to dc.js and crossfilter.

Answer 1

The solution is quite simple really. Create two dimensions:

1. by start time -startTimeDim
2. by end time - endTimeDim

Now, to filter out intervals that intersect a given range - rangeStart and rangeEnd, apply the following:

1. startTimeDim.filter([-Infinity, rangeEnd])
2. endTimeDim.filter([rangeStart, Infinity])

This basically filters out intervals that start before the range ends & end before the range starts.