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Add VHighlight

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This commit is contained in:
Grant Sanderson 2022-04-21 14:32:39 -07:00
parent fe3e10acd2
commit 9d5e2b32fa
1 changed files with 24 additions and 0 deletions
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24
manimlib/mobject/types/vectorized_mobject.py
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@ -10,6 +10,8 @@ import moderngl
import numpy.typing as npt import numpy.typing as npt
from manimlib.constants import * from manimlib.constants import *
from manimlib.constants import GREY_C
from manimlib.constants import GREY_E
from manimlib.mobject.mobject import Mobject from manimlib.mobject.mobject import Mobject
from manimlib.mobject.mobject import Point from manimlib.mobject.mobject import Point
from manimlib.utils.bezier import bezier from manimlib.utils.bezier import bezier
@ -20,6 +22,7 @@ from manimlib.utils.bezier import interpolate
from manimlib.utils.bezier import inverse_interpolate from manimlib.utils.bezier import inverse_interpolate
from manimlib.utils.bezier import integer_interpolate from manimlib.utils.bezier import integer_interpolate
from manimlib.utils.bezier import partial_quadratic_bezier_points from manimlib.utils.bezier import partial_quadratic_bezier_points
from manimlib.utils.color import color_gradient
from manimlib.utils.color import rgb_to_hex from manimlib.utils.color import rgb_to_hex
from manimlib.utils.iterables import make_even from manimlib.utils.iterables import make_even
from manimlib.utils.iterables import resize_array from manimlib.utils.iterables import resize_array
@ -1174,3 +1177,24 @@ class DashedVMobject(VMobject):
# Family is already taken care of by get_subcurve # Family is already taken care of by get_subcurve
# implementation # implementation
self.match_style(vmobject, recurse=False) self.match_style(vmobject, recurse=False)
class VHighlight(VGroup):
def __init__(
self,
vmobject: VMobject,
n_layers: int = 3,
color_bounds: tuple[ManimColor] = (GREY_C, GREY_E),
max_stroke_width: float = 10.0,
):
outline = vmobject.replicate(n_layers)
outline.set_fill(opacity=0)
added_widths = np.linspace(0, max_stroke_width, n_layers + 1)[1:]
colors = color_gradient(color_bounds, n_layers)
for part, added_width, color in zip(reversed(outline), added_widths, colors):
for sm in part.family_members_with_points():
part.set_stroke(
width=sm.get_stroke_width() + added_width,
color=color,
)
super().__init__(*outline)