gradients.py

#!/usr/bin/env python3
import sys
import os
sys.path.insert(0, os.path.join(
    os.path.dirname(os.path.dirname(os.path.abspath(__file__))),
    "lib"
))
from lottie.utils import script
from lottie import objects, NVector
from lottie import Color, Point
 
 
an = objects.Animation(59)
 
layer = objects.ShapeLayer()
an.add_layer(layer)
 
g1 = layer.add_shape(objects.Group())
 
circle = g1.add_shape(objects.Ellipse())
circle.size.value = Point(100, 100)
circle.position.value = Point(128, 156)
 
 
fill = g1.add_shape(objects.GradientFill())
fill.start_point.value = Point(100, 0)
fill.end_point.value = Point(200, 0)
fill.colors.set_stops([(0, Color(1, 0, 0)), (1, Color(1, 1, 0))])
 
 
stroke = g1.add_shape(objects.GradientStroke(5))
stroke.start_point.value = Point(100, 0)
stroke.end_point.value = Point(200, 0)
stroke.colors.add_keyframe( 0, [(0, Color(1, 0, 0)), (1, Color(1, 1, 0))])
stroke.colors.add_keyframe(10, [(0, Color(1, 1, 0)), (1, Color(0, 1, 0))])
stroke.colors.add_keyframe(30, [(0, Color(1, 0, 1)), (1, Color(0, 0, 1))])
stroke.colors.add_keyframe(59, [(0, Color(1, 0, 0)), (1, Color(1, 1, 0))])
stroke.colors.count = 2
stroke.width.value = 10
 
 
g2 = layer.add_shape(objects.Group())
 
circle = g2.add_shape(objects.Ellipse())
circle.size.value = Point(200, 200)
circle.position.value = Point(128+256, 256)
 
 
fill = g2.add_shape(objects.GradientFill())
fill.gradient_type = objects.GradientType.Radial
fill.start_point.value = Point(128+256, 256)
fill.end_point.value = Point(128+256+100, 256)
fill.colors.set_stops([(0, Color(1, 0, 0)), (1, Color(1, 1, 0))])
#fill.highlight_length.add_keyframe(0, -50)
#fill.highlight_length.add_keyframe(30, 50)
#fill.highlight_length.add_keyframe(59, -50)
#fill.highlight_angle.value = 45
fill.highlight_length.value = 90
 
 
g3 = layer.add_shape(objects.Group())
circle = g3.add_shape(objects.Ellipse())
circle.size.value = Point(100, 100)
circle.position.value = Point(128, 356)
fill = g3.add_shape(objects.GradientFill())
fill.start_point.value = Point(100, 0)
fill.end_point.value = Point(200, 0)
fill.colors.set_stops([(0, NVector(1, 0, 0, 1)), (0.5, NVector(1, .5, 0, 1)), (1, NVector(1, 1, 0, 0))])
 
 
script.script_main(an)