mbostock/d3 — pull request #1813 by jasondavies (2014-03-26 19:00:49+00:00)
Title: Better fix for d3.geo.conicConformal.

Rather than clamping latitudes to ±(π/2 - ε), we preserve infinite coordinates and correct the issue where 0 * Infinity resulted in NaN; instead we substitute 0, which appears to fix the problem in #1802.

Includes tests and a fix for the inverse projection.