lottie.objects.bezier.Bezier Class Reference

Single bezier curve. More...

Inheritance diagram for lottie.objects.bezier.Bezier:

Collaboration diagram for lottie.objects.bezier.Bezier:

Public Member Functions
def	__init__ (self)
def	clone (self)
	Returns a copy of the object. More...
def	insert_point (self, index, pos, inp=NVector(0, 0), outp=NVector(0, 0))
	Inserts a point at the given index. More...
def	add_point (self, pos, inp=NVector(0, 0), outp=NVector(0, 0))
	Appends a point to the curve. More...
def	add_smooth_point (self, pos, inp)
	Appends a point with symmetrical tangents. More...
def	close (self, closed=True)
	Updates self.closed. More...
def	point_at (self, t)
def	tangent_angle_at (self, t)
def	split_at (self, t)
	Get two pieces out of a Bezier curve. More...
def	segment (self, t1, t2)
	Splits a Bezier in two points and returns the segment between the. More...
def	split_self_multi (self, positions)
	Adds more points to the Bezier. More...
def	split_each_segment (self)
	Adds a point in the middle of the segment between every pair of points in the Bezier. More...
def	split_self_chunks (self, n_chunks)
	Adds points the Bezier, splitting it into n_chunks additional chunks. More...
def	reverse (self)
	Reverses the Bezier curve. More...
def	rounded (self, round_distance)
def	scale (self, amount)
def	lerp (self, other, t)
def	rough_length (self)
Public Member Functions inherited from lottie.objects.base.LottieObject
def	to_dict (self)
	Serializes into a JSON object fit for the Lottie format. More...
def	load (cls, lottiedict)
	Loads from a JSON object. More...
def	find (self, search, propname="name")
	Recursively searches for child objects with a matching property. More...
def	find_all (self, type, predicate=None, include_self=True)
	Find all child objects that match a predicate. More...
def	clone_into (self, other)
def	__str__ (self)
Public Member Functions inherited from lottie.objects.base.LottieObjectMeta
def	__new__ (cls, name, bases, attr)

Public Attributes
	closed
	Closed property of shape. More...
	in_tangents
	Cubic bezier handles for the segments before each vertex. More...
	out_tangents
	Cubic bezier handles for the segments after each vertex. More...
	vertices
	Bezier curve vertices. More...
	points
	More convent way to access points. More...

Detailed Description

Single bezier curve.

Lottie JSON

Lottie name	Type	Description	Attribute
c	bool	Closed property of shape.	closed
i	list of NVector	Cubic bezier handles for the segments before each vertex.	in_tangents
o	list of NVector	Cubic bezier handles for the segments after each vertex.	out_tangents
v	list of NVector	Bezier curve vertices.	vertices

Definition at line 123 of file bezier.py.

Constructor & Destructor Documentation

__init__()

def lottie.objects.bezier.Bezier.__init__

(

self

)

Reimplemented from lottie.objects.base.LottieObject.

Definition at line 134 of file bezier.py.

Member Function Documentation

add_point()

def lottie.objects.bezier.Bezier.add_point	(		self,
			pos,
			inp = NVector(0, 0),
			outp = NVector(0, 0)
	)

Appends a point to the curve.

See also

insert_point

Definition at line 173 of file bezier.py.

add_smooth_point()

def lottie.objects.bezier.Bezier.add_smooth_point	(		self,
			pos,
			inp
	)

Appends a point with symmetrical tangents.

See also

insert_point

Definition at line 181 of file bezier.py.

clone()

def lottie.objects.bezier.Bezier.clone

(

self

)

Returns a copy of the object.

Reimplemented from lottie.objects.base.LottieObject.

Definition at line 147 of file bezier.py.

close()

def lottie.objects.bezier.Bezier.close	(		self,
			closed = True
	)

Updates self.closed.

Returns

self, for easy chaining

Definition at line 189 of file bezier.py.

insert_point()

def lottie.objects.bezier.Bezier.insert_point	(		self,
			index,
			pos,
			inp = NVector(0, 0),
			outp = NVector(0, 0)
	)

Inserts a point at the given index.

Parameters

index	Index to insert the point at
pos	Point to add
inp	Tangent entering the point, as a vector relative to pos
outp	Tangent exiting the point, as a vector relative to pos

Returns

self, for easy chaining

Definition at line 156 of file bezier.py.

lerp()

def lottie.objects.bezier.Bezier.lerp	(		self,
			other,
			t
	)

Definition at line 461 of file bezier.py.

point_at()

def lottie.objects.bezier.Bezier.point_at	(		self,
			t
	)

Parameters

t	A value between 0 and 1, percentage along the length of the curve

Returns

The point at t in the curve

Definition at line 197 of file bezier.py.

reverse()

def lottie.objects.bezier.Bezier.reverse

(

self

)

Reverses the Bezier curve.

Definition at line 412 of file bezier.py.

rough_length()

def lottie.objects.bezier.Bezier.rough_length

(

self

)

Definition at line 479 of file bezier.py.

rounded()

def lottie.objects.bezier.Bezier.rounded	(		self,
			round_distance
	)

Definition at line 431 of file bezier.py.

scale()

def lottie.objects.bezier.Bezier.scale	(		self,
			amount
	)

Definition at line 456 of file bezier.py.

segment()

def lottie.objects.bezier.Bezier.segment	(		self,
			t1,
			t2
	)

Splits a Bezier in two points and returns the segment between the.

Parameters

t1	A value between 0 and 1, percentage along the length of the curve
t2	A value between 0 and 1, percentage along the length of the curve

Returns

Bezier object that correspond to the segment between t1 and t2

Definition at line 269 of file bezier.py.

split_at()

def lottie.objects.bezier.Bezier.split_at	(		self,
			t
	)

Get two pieces out of a Bezier curve.

Parameters

t	A value between 0 and 1, percentage along the length of the curve

Returns

Two Bezier objects that correspond to self, but split at t

Definition at line 243 of file bezier.py.

split_each_segment()

def lottie.objects.bezier.Bezier.split_each_segment

(

self

)

Adds a point in the middle of the segment between every pair of points in the Bezier.

Definition at line 330 of file bezier.py.

split_self_chunks()

def lottie.objects.bezier.Bezier.split_self_chunks	(		self,
			n_chunks
	)

Adds points the Bezier, splitting it into n_chunks additional chunks.

Definition at line 352 of file bezier.py.

split_self_multi()

def lottie.objects.bezier.Bezier.split_self_multi	(		self,
			positions
	)

Adds more points to the Bezier.

Parameters

positions

list of percentages along the curve

Definition at line 301 of file bezier.py.

tangent_angle_at()

def lottie.objects.bezier.Bezier.tangent_angle_at	(		self,
			t
	)

Definition at line 206 of file bezier.py.

Member Data Documentation

closed

lottie.objects.bezier.Bezier.closed

Closed property of shape.

Definition at line 136 of file bezier.py.

in_tangents

lottie.objects.bezier.Bezier.in_tangents

Cubic bezier handles for the segments before each vertex.

Definition at line 138 of file bezier.py.

out_tangents

lottie.objects.bezier.Bezier.out_tangents

Cubic bezier handles for the segments after each vertex.

Definition at line 140 of file bezier.py.

points

lottie.objects.bezier.Bezier.points

More convent way to access points.

Definition at line 145 of file bezier.py.

vertices

lottie.objects.bezier.Bezier.vertices

Bezier curve vertices.

Definition at line 142 of file bezier.py.

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The documentation for this class was generated from the following file:

• lottie/objects/bezier.py