#!/usr/bin/python

import geos


#geom_factory = geos.GeometryFactory()
wkt_reader = geos.WktReader()
wkt_writer = geos.WktWriter()

geom1 = wkt_reader.read('POLYGON((413.4 243.1,607.3 244.2,607 294.9,697.9 295.4,699.2 241.8,416.9 240.9,416.7 162.3,413.2 162.3,413.4 243.1))')
geom2 = wkt_reader.read('POLYGON((513.4 343.1,707.3 344.2,707 394.9,797.9 395.4,799.2 341.8,516.9 340.9,516.7 262.3,513.2 262.3,513.4 343.1))')
buffer1 = geom1.buffer(-2)

print "result is:"
wkt1=wkt_writer.write(buffer1)
print wkt1
print "\n*********************************************************\n\n"
buffer2 = geom2.buffer(-2)
print "result is:"
wkt2=wkt_writer.write(buffer2)
print wkt2