libpysal.cg.Line

class libpysal.cg.Line(m, b)

Geometric representation of line objects.

Parameters

m{python:int, python:float}

The slope of the line. m is also an attribute.

b{python:int, python:float}

The \(y\)-intercept of the line. b is also an attribute.

Raises

ArithmeticError

Raised when infinity is passed in as the slope.

Examples

>>> ls = Line(1, 0)
>>> ls.m
1.0

>>> ls.b
0.0

__init__(self, m, b)

Initialize self. See help(type(self)) for accurate signature.

Methods

__init__(self, m, b)	Initialize self.
x(self, y, float])	Returns the \(x\)-value of the line at a particular \(y\)-value.
y(self, x, float])	Returns the \(y\)-value of the line at a particular \(x\)-value.

x(self, y: Union[int, float]) → float

Returns the \(x\)-value of the line at a particular \(y\)-value.

Parameters

y{python:int, python:float}

The \(y\)-value at which to compute \(x\).

Raises

ArithmeticError

Raised when 0. is passed in as the slope.

Examples

>>> l = Line(0.5, 0)
>>> l.x(0.25)
0.5

y(self, x: Union[int, float]) → float

Returns the \(y\)-value of the line at a particular \(x\)-value.

Parameters

x{python:int, python:float}

The \(x\)-value at which to compute \(y\).

Examples

>>> l = Line(1, 0)
>>> l.y(1)
1.0