def mapPoint(self, p, tol=tolerance.TOL):
"""See if an object in the PointBMapTree exists at a Point.
mapPoint(p [, tol])
This method has one required parameter:
p: Either a Point object or a tuple of two-floats
There is a single optional argument:
tol: A float equal or greater than 0 used to decide if the
point is close enough to the objects held in the Tree.
The function returns a list of at tuples, each of the form
(obj, pt)
obj: Object that the Point is mapped to
pt: The projected Point on the object
The list will contain at most two tuples.
"""
_p = p
if not isinstance(_p, (point.Point, tuple)):
raise TypeError, "Invalid type for searching in PointMapTree: " + `_p`
if isinstance(_p, tuple):
_x, _y = util.tuple_to_two_floats(_p)
_p = point.Point(_x, _y)
_t = tolerance.toltest(tol)
_objlist = []
_scanlist = []
_lo = 0
_hi = len(self)
while _lo < _hi:
_mid = (_hi+_lo)//2
if _mid in _scanlist:
break
_scanlist.append(_mid)
_obj = self[_mid]
_res = cmp(_obj, _p)
if _res == -1:
_lo = _mid + 1
elif _res == 1:
_hi = _mid
else:
_pt = _obj.mapPoint(_p, _t)
if _pt is not None:
_objlist.append((_obj, _pt))
break
return _objlist
def mapPoint(self, p, tol=tolerance.TOL):
"""See if an object in the PointBMapTree exists at a Point.
mapPoint(p [, tol])
This method has one required parameter:
p: Either a Point object or a tuple of two-floats
There is a single optional argument:
tol: A float equal or greater than 0 used to decide if the
point is close enough to the objects held in the Tree.
The function returns a list of at tuples, each of the form
(obj, pt)
obj: Object that the Point is mapped to
pt: The projected Point on the object
The list will contain at most two tuples.
"""
_p = p
if not isinstance(_p, (point.Point, tuple)):
raise TypeError, "Invalid type for searching in PointMapTree: " + ` _p `
if isinstance(_p, tuple):
_x, _y = util.tuple_to_two_floats(_p)
_p = point.Point(_x, _y)
_t = tolerance.toltest(tol)
_objlist = []
_scanlist = []
_lo = 0
_hi = len(self)
while _lo < _hi:
_mid = (_hi + _lo) // 2
if _mid in _scanlist:
break
_scanlist.append(_mid)
_obj = self[_mid]
_res = cmp(_obj, _p)
if _res == -1:
_lo = _mid + 1
elif _res == 1:
_hi = _mid
else:
_pt = _obj.mapPoint(_p, _t)
if _pt is not None:
_objlist.append((_obj, _pt))
break
return _objlist
def __eq__(self, obj):
"""Compare a Point to either another Point or a tuple for equality.
"""
if not isinstance(obj, (Point, tuple)):
return False
if isinstance(obj, Point):
if obj is self:
return True
_x, _y = obj.getCoords()
else:
_x, _y = util.tuple_to_two_floats(obj)
if abs(self.__x - _x) < 1e-10 and abs(self.__y - _y) < 1e-10:
return True
return False
def __eq__(self, obj):
"""Compare a Point to either another Point or a tuple for equality.
"""
if not isinstance(obj, (Point,tuple)):
return False
if isinstance(obj, Point):
if obj is self:
return True
_x, _y = obj.getCoords()
else:
_x, _y = util.tuple_to_two_floats(obj)
if abs(self.__x - _x) < 1e-10 and abs(self.__y - _y) < 1e-10:
return True
return False
def mapPoint(self, p, tol=tolerance.TOL, count=2):
"""See if an object in the PointMapTree exists at a Point.
mapPoint(p [, tol, count])
This method has one required parameter:
p: Either a Point object or a tuple of two-floats
There are two optional arguments:
tol: A float equal or greater than 0 used to decide if the
point is close enough to the objects held in the Tree.
count: An integer indicating the maximum number of objects
to return. By default this value is 2.
The function returns a list of at tuples, each of the form
(obj, pt)
obj: Object that the Point is mapped to
pt: The projected Point on the object
"""
_p = p
if not isinstance(_p, (point.Point, tuple)):
raise TypeError, "Invalid type for searching in PointMapTree: " + ` _p `
if isinstance(_p, tuple):
_x, _y = util.tuple_to_two_floats(_p)
_p = point.Point(_x, _y)
_t = tolerance.toltest(tol)
_count = count
if not isinstance(_count, int):
_count = int(count)
if _count < 0:
raise ValueError, "Invalid count: %d" % _count
_objlist = []
for _obj in self:
_pt = _obj.mapPoint(_p, _t)
if _pt is not None:
_objlist.append((_obj, _pt))
if len(_objlist) == _count or cmp(_obj, _p) == 1:
break
return _objlist
def mapPoint(self, p, tol=tolerance.TOL, count=2):
"""See if an object in the PointMapTree exists at a Point.
mapPoint(p [, tol, count])
This method has one required parameter:
p: Either a Point object or a tuple of two-floats
There are two optional arguments:
tol: A float equal or greater than 0 used to decide if the
point is close enough to the objects held in the Tree.
count: An integer indicating the maximum number of objects
to return. By default this value is 2.
The function returns a list of at tuples, each of the form
(obj, pt)
obj: Object that the Point is mapped to
pt: The projected Point on the object
"""
_p = p
if not isinstance(_p, (point.Point, tuple)):
raise TypeError, "Invalid type for searching in PointMapTree: " + `_p`
if isinstance(_p, tuple):
_x, _y = util.tuple_to_two_floats(_p)
_p = point.Point(_x, _y)
_t = tolerance.toltest(tol)
_count = count
if not isinstance(_count, int):
_count = int(count)
if _count < 0:
raise ValueError, "Invalid count: %d" % _count
_objlist = []
for _obj in self:
_pt = _obj.mapPoint(_p, _t)
if _pt is not None:
_objlist.append((_obj, _pt))
if len(_objlist) == _count or cmp(_obj, _p) == 1:
break
return _objlist
def __init__(self, x, y=None, **kw):
"""Initialize a Point.
There are two ways to initialize a Point:
Point(xc,yc) - Two arguments, with both arguments being floats
Point((xc,yc)) - A single tuple containing two float objects
"""
super(Point, self).__init__(**kw)
if isinstance(x, tuple):
if y is not None:
raise SyntaxError, "Invalid call to Point()"
_x, _y = util.tuple_to_two_floats(x)
elif y is not None:
_x = util.get_float(x)
_y = util.get_float(y)
else:
raise SyntaxError, "Invalid call to Point()."
self.__x = _x
self.__y = _y
def __init__(self, x, y=None, **kw):
"""Initialize a Point.
There are two ways to initialize a Point:
Point(xc,yc) - Two arguments, with both arguments being floats
Point((xc,yc)) - A single tuple containing two float objects
"""
super(Point, self).__init__(**kw)
if isinstance(x, tuple):
if y is not None:
raise SyntaxError, "Invalid call to Point()"
_x, _y = util.tuple_to_two_floats(x)
elif y is not None:
_x = util.get_float(x)
_y = util.get_float(y)
else:
raise SyntaxError, "Invalid call to Point()."
self.__x = _x
self.__y = _y
