Surface#

Qualified name: manim.mobject.three\_d.three\_dimensions.Surface

class Surface(func, u_range=[0, 1], v_range=[0, 1], resolution=32, surface_piece_config={}, fill_color='#29ABCA', fill_opacity=1.0, checkerboard_colors=['#29ABCA', '#236B8E'], stroke_color='#BBBBBB', stroke_width=0.5, should_make_jagged=False, pre_function_handle_to_anchor_scale_factor=1e-05, **kwargs)[source]#

Bases: VGroup

Creates a Parametric Surface using a checkerboard pattern.

Parameters

func (Callable[[float, float], np.ndarray]) – The function defining the Surface.
u_range (Sequence[float]) – The range of the u variable: (u_min, u_max).
v_range (Sequence[float]) – The range of the v variable: (v_min, v_max).
resolution (Sequence[int]) – The number of samples taken of the Surface. A tuple can be used to define different resolutions for u and v respectively.
fill_color (Color) – The color of the Surface. Ignored if checkerboard_colors is set.
fill_opacity (float) – The opacity of the Surface, from 0 being fully transparent to 1 being fully opaque. Defaults to 1.
checkerboard_colors (Sequence[Color]) – ng individual faces alternating colors. Overrides fill_color.
stroke_color (Color) – Color of the stroke surrounding each face of Surface.
stroke_width (float) – Width of the stroke surrounding each face of Surface. Defaults to 0.5.
should_make_jagged (bool) – Changes the anchor mode of the Bézier curves from smooth to jagged. Defaults to False.
surface_piece_config (dict) –
pre_function_handle_to_anchor_scale_factor (float) –

Examples

Example: ParaSurface ¶

from manim import *

class ParaSurface(ThreeDScene):
    def func(self, u, v):
        return np.array([np.cos(u) * np.cos(v), np.cos(u) * np.sin(v), u])

    def construct(self):
        axes = ThreeDAxes(x_range=[-4,4], x_length=8)
        surface = Surface(
            lambda u, v: axes.c2p(*self.func(u, v)),
            u_range=[-PI, PI],
            v_range=[0, TAU],
            resolution=8,
        )
        self.set_camera_orientation(theta=70 * DEGREES, phi=75 * DEGREES)
        self.add(axes, surface)

Methods

`func`	The z values defining the `Surface` being plotted.
`set_fill_by_checkerboard`	Sets the fill_color of each face of `Surface` in an alternating pattern.
`set_fill_by_value`	Sets the color of each mobject of a parametric surface to a color relative to its axis-value.

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.

func(u, v)[source]#

The z values defining the Surface being plotted.

Returns

The z values defining the Surface.

Return type

numpy.array

Parameters

u (float) –
v (float) –

set_fill_by_checkerboard(*colors, opacity=None)[source]#

Sets the fill_color of each face of Surface in an alternating pattern.

Parameters

colors (Sequence[Color]) – List of colors for alternating pattern.
opacity (float) – The fill_opacity of Surface, from 0 being fully transparent to 1 being fully opaque.

Returns

The parametric surface with an alternating pattern.

Return type

Surface

set_fill_by_value(axes, colorscale=None, axis=2, **kwargs)[source]#

Sets the color of each mobject of a parametric surface to a color relative to its axis-value.

Parameters

axes (Mobject) – The axes for the parametric surface, which will be used to map axis-values to colors.
colorscale (Union[Iterable[Color], Color] | None) – A list of colors, ordered from lower axis-values to higher axis-values. If a list of tuples is passed containing colors paired with numbers, then those numbers will be used as the pivots.
axis (int) – The chosen axis to use for the color mapping. (0 = x, 1 = y, 2 = z)

Returns

The parametric surface with a gradient applied by value. For chaining.

Return type

Surface

Examples

Example: FillByValueExample ¶

from manim import *

class FillByValueExample(ThreeDScene):
    def construct(self):
        resolution_fa = 8
        self.set_camera_orientation(phi=75 * DEGREES, theta=-160 * DEGREES)
        axes = ThreeDAxes(x_range=(0, 5, 1), y_range=(0, 5, 1), z_range=(-1, 1, 0.5))
        def param_surface(u, v):
            x = u
            y = v
            z = np.sin(x) * np.cos(y)
            return z
        surface_plane = Surface(
            lambda u, v: axes.c2p(u, v, param_surface(u, v)),
            resolution=(resolution_fa, resolution_fa),
            v_range=[0, 5],
            u_range=[0, 5],
            )
        surface_plane.set_style(fill_opacity=1)
        surface_plane.set_fill_by_value(axes=axes, colorscale=[(RED, -0.5), (YELLOW, 0), (GREEN, 0.5)], axis=2)
        self.add(axes, surface_plane)