Assertion error for zero-sized rectangles

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Create a zero-sized length

What is the expected output? What do you see instead?

I expect things to work. I get assertion error.

What version of the product are you using? On what operating system?

Python 2.6.6, Windows Vista.

Please provide any additional information below.

rect = Rect(point.coords[0], point.coords[1], point.coords[0], point.coords[1])
print rect.extent(), point.coords
self.extent = rect.union(self.extent)
self.points.append(point)

Traceback (most recent call last):
  File "C:\Users\valit\Desktop\?\?.py", line 89, in <module>
    a = PointCollection('?.csv', '?')
  File "C:\Users\valit\Desktop\?\?.py", line 39, in __init__
    self.rtree.insert(point, rect)
  File "C:\Python26\lib\pyrtree\rtree.py", line 45, in insert
    self.cursor.insert(o,orect)
  File "C:\Python26\lib\pyrtree\rtree.py", line 203, in insert
    self._insert_child(_NodeCursor.create_leaf(self.root,leafo,leafrect))
  File "C:\Python26\lib\pyrtree\rtree.py", line 92, in create_leaf
    assert(res.is_leaf())
AssertionError


This wont give an error:
rect = Rect(point.coords[0], point.coords[1], point.coords[0]+0.0000001, 
point.coords[1]+0.0000001)

Original issue reported on code.google.com by qtv...@gmail.com on 9 May 2011 at 12:51