azavea/geotrellis — pull request #225 by joshmarcus (2012-11-15 15:57:24+00:00)
Title: Add geometry operations, plus refactors to existing operations.

This pull request adds or refactors a set of core geometry operations
based on available JTS operations, plus basic tests. The operations
include:
-- Buffer
-- Simplify
-- ConvexHull

Overlay operations such as:
-- Union
-- Intersect
-- Erase
-- SymDifference

and boolean operations such as:
-- Contains
-- Covers
-- Disjoint
-- Equals
-- Overlaps