libpysal.cg.Line

class libpysal.cg.Line(m, b)

Geometric representation of line objects.

Parameters:

m{int, float}

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

b{int, 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__(m, b)

Methods

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

x(y: int | float) → float

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

Parameters:

y{int, 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(x: int | float) → float

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

Parameters:

x{int, float}

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

Examples

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