EasyGeometry::D2::Line

An infinite line in 2-dimensional Euclidean space. Line inherit from Linear Entity.

#contains?(entity)

Description

Is other GeometryEntity contained in this Line?

Returns:

• true if entity is on this Line.

• false otherwise.

Signature

Parameters:
    entity - GeometryEntity(Point, Line etc.) or Array of Numeric(coordinates)
    
Returns:
    boolean (true or false)
    
Errors:

Example

l1 = EasyGeometry::D2::Line.new([0, 0], [1, 1])

l1.contains?(EasyGeometry::D2::Line.new(0, 0))  # true
l1.contains?(EasyGeometry::D2::Line.new(2, 3))  # false

#distance(point)

Description

Finds the shortest distance between a line and a point.

Signature

Parameters:
    point - EasyGeometry::D2::Point or Array of Numeric(coordinates)
    
Returns:
    Numeric
    
Errors:
    raise TypeError if point is not Point or valid Array

Example

l1 = EasyGeometry::D2::Line.new([0, 0], [1, 1])

l1.distance([0, 0])  # 0
l1.distance([-1, 1]) # Math.sqrt(2)

#==(other)

Description

Returns True if self and otherare the same mathematical entities.

Signature

Parameters:
    other - GeometryEntity(Point, Line etc.)
    
Returns:
    boolean (true or false)
    
Errors:

Example

l1 = EasyGeometry::D2::Line.new([0, 0], [1, 1])
l2 = EasyGeometry::D2::Line.new([0, 0], [1, 0])

l1 == l2  # false
l1 == l1  # true

#equation

Description

The equation of the line: ax + by + c.