# File lib/geo_ruby/simple_features/envelope.rb, line 16 def extend!(envelope) lower_corner.x = [lower_corner.x,envelope.lower_corner.x].min lower_corner.y = [lower_corner.y,envelope.lower_corner.y].min upper_corner.x = [upper_corner.x,envelope.upper_corner.x].max upper_corner.y = [upper_corner.y,envelope.upper_corner.y].max self end