Line#

Qualified name: manim.mobject.geometry.line.Line

class Line(start=array([- 1., 0., 0.]), end=array([1., 0., 0.]), buff=0, path_arc=None, **kwargs)[source]#

Bases: TipableVMobject

Methods

`generate_points`	Initializes `points` and therefore the shape.
`get_angle`
`get_projection`	Returns the projection of a point onto a line.
`get_slope`
`get_unit_vector`
`get_vector`
`init_points`	Initializes `points` and therefore the shape.
`put_start_and_end_on`	Sets starts and end coordinates of a line.
`set_angle`
`set_length`
`set_path_arc`
`set_points_by_ends`

Attributes

`animate`	Used to animate the application of any method of `self`.
`animation_overrides`
`color`
`depth`	The depth of the mobject.
`fill_color`	If there are multiple colors (for gradient) this returns the first one
`height`	The height of the mobject.
`n_points_per_curve`
`sheen_factor`
`stroke_color`
`width`	The width of the mobject.

Parameters:

start (Point3D) –
end (Point3D) –
buff (float) –
path_arc (float | None) –

_original__init__(start=array([- 1., 0., 0.]), end=array([1., 0., 0.]), buff=0, path_arc=None, **kwargs)#

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

Parameters:

start (Point3D) –
end (Point3D) –
buff (float) –
path_arc (float | None) –

Return type:

None

_pointify(mob_or_point, direction=None)[source]#

Transforms a mobject into its corresponding point. Does nothing if a point is passed.

direction determines the location of the point along its bounding box in that direction.

Parameters:

mob_or_point (Mobject | Point3D) – The mobject or point.
direction (Vector | None) – The direction.

Return type:

Point3D

generate_points()[source]#

Initializes points and therefore the shape.

Gets called upon creation. This is an empty method that can be implemented by subclasses.

Return type:: None

get_projection(point)[source]#

Returns the projection of a point onto a line.

Parameters:: point (Point3D) – The point to which the line is projected.
Return type:: Vector

init_points()#

Initializes points and therefore the shape.

Gets called upon creation. This is an empty method that can be implemented by subclasses.

Return type:: None

put_start_and_end_on(start, end)[source]#

Sets starts and end coordinates of a line.

Examples

Example: LineExample ¶

from manim import *

class LineExample(Scene):
    def construct(self):
        d = VGroup()
        for i in range(0,10):
            d.add(Dot())
        d.arrange_in_grid(buff=1)
        self.add(d)
        l= Line(d[0], d[1])
        self.add(l)
        self.wait()
        l.put_start_and_end_on(d[1].get_center(), d[2].get_center())
        self.wait()
        l.put_start_and_end_on(d[4].get_center(), d[7].get_center())
        self.wait()

class LineExample(Scene):
    def construct(self):
        d = VGroup()
        for i in range(0,10):
            d.add(Dot())
        d.arrange_in_grid(buff=1)
        self.add(d)
        l= Line(d[0], d[1])
        self.add(l)
        self.wait()
        l.put_start_and_end_on(d[1].get_center(), d[2].get_center())
        self.wait()
        l.put_start_and_end_on(d[4].get_center(), d[7].get_center())
        self.wait()

Parameters:

start (Point3D) –
end (Point3D) –

Return type:

Self