root/Shapely/trunk/tests/Operations.txt

Test GEOS operations
====================

  >>> from shapely.geometry import Point
  >>> point = Point(0.0, 0.0)

General geometry
----------------

  >>> point.area
  0.0

  >>> point.length
  0.0

  >>> point.distance(Point(-1.0, -1.0))
  1.4142135623730951

Topology operations
-------------------

  Envelope

  >>> point.envelope #doctest: +ELLIPSIS
  <shapely.geometry.point.Point object at ...>

  Intersection

  >>> point.intersection(Point(-1,-1)) #doctest: +ELLIPSIS
  <shapely.geometry.collection.GeometryCollection object at ...>
  
  Buffer

  >>> point.buffer(10.0) #doctest: +ELLIPSIS
  <shapely.geometry.polygon.Polygon object at ...>
  
  >>> point.buffer(10.0, 32) #doctest: +ELLIPSIS
  <shapely.geometry.polygon.Polygon object at ...>

  Convex Hull

  >>> point.convex_hull #doctest: +ELLIPSIS
  <shapely.geometry.point.Point object at ...>
  
  Differences

  >>> point.difference(Point(-1, 1)) #doctest: +ELLIPSIS
  <shapely.geometry.point.Point object at ...>
  
  >>> point.symmetric_difference(Point(-1, 1)) #doctest: +ELLIPSIS
  <shapely.geometry.multipoint.MultiPoint object at ...>
  
  Boundary

  >>> point.boundary #doctest: +ELLIPSIS
  <shapely.geometry.collection.GeometryCollection object at ...>
  
  Union

  >>> point.union(Point(-1, 1)) #doctest: +ELLIPSIS
  <shapely.geometry.multipoint.MultiPoint object at ...>

  Point on Surface (TODO?)

  >>> point.centroid #doctest: +ELLIPSIS
  <shapely.geometry.point.Point object at ...>

  Relate

  >>> point.relate(Point(-1, -1)) #doctest: +ELLIPSIS
  'FF0FFF0F2'