Python Mobject.align_data方法代码示例

# 需要导入模块: from mobject import Mobject [as 别名]
# 或者: from mobject.Mobject import align_data [as 别名]
    def __init__(self, mobject1, mobject2, 
                 run_time = DEFAULT_TRANSFORM_RUN_TIME,
                 interpolation_function = straight_path,
                 black_out_extra_points = False,
                 *args, **kwargs):
        self.interpolation_function = interpolation_function
        count1, count2 = mobject1.get_num_points(), mobject2.get_num_points()
        if count2 == 0:
            mobject2 = Point((SPACE_WIDTH, SPACE_HEIGHT, 0))
            count2 = mobject2.get_num_points()
        Mobject.align_data(mobject1, mobject2)
        Animation.__init__(self, mobject1, run_time = run_time, *args, **kwargs)
        self.ending_mobject = mobject2
        self.mobject.SHOULD_BUFF_POINTS = \
            mobject1.SHOULD_BUFF_POINTS and mobject2.SHOULD_BUFF_POINTS
        self.reference_mobjects.append(mobject2)
        self.name += "To" + str(mobject2)

        if black_out_extra_points and count2 < count1:
            #Ensure redundant pixels fade to black
            indices = np.arange(
                0, count1-1, float(count1) / count2
            ).astype('int')
            temp = np.zeros(mobject2.points.shape)
            temp[indices] = mobject2.rgbs[indices]
            mobject2.rgbs = temp
            self.non_redundant_m2_indices = indices

# 需要导入模块: from mobject import Mobject [as 别名]
# 或者: from mobject.Mobject import align_data [as 别名]
    def construct(self):
        curve = HilbertCurve(order = 6)
        curve.highlight(WHITE)
        colored_curve = curve.copy()
        colored_curve.thin_out(3)
        lion = ImageMobject("lion", invert = False)
        lion.replace(curve, stretch = True)
        sparce_lion = lion.copy()
        sparce_lion.thin_out(100)
        distance_matrix = cdist(colored_curve.points, sparce_lion.points)
        closest_point_indices = np.apply_along_axis(
            np.argmin, 1, distance_matrix
        )
        colored_curve.rgbs = sparce_lion.rgbs[closest_point_indices]
        line = Line(5*LEFT, 5*RIGHT)
        Mobject.align_data(line, colored_curve)
        line.rgbs = colored_curve.rgbs

        self.add(lion)
        self.play(ShowCreation(curve, run_time = 3))
        self.play(
            FadeOut(lion),
            Transform(curve, colored_curve),
            run_time = 3
        )
        self.dither()
        self.play(Transform(curve, line, run_time = 5))
        self.dither()

# 需要导入模块: from mobject import Mobject [as 别名]
# 或者: from mobject.Mobject import align_data [as 别名]
    def setup(self):
        self.input_color = YELLOW_C
        self.output_color = RED
        def spiril(t):
            theta = 2*np.pi*t
            return t*np.cos(theta)*RIGHT+t*np.sin(theta)*UP

        self.spiril1 = ParametricFunction(
            lambda t : 1.5*RIGHT + DOWN + 2*spiril(t),
            density = 5*DEFAULT_POINT_DENSITY_1D,
        )
        self.spiril2 = ParametricFunction(
            lambda t : 5.5*RIGHT + UP - 2*spiril(1-t),
            density = 5*DEFAULT_POINT_DENSITY_1D,
        )
        Mobject.align_data(self.spiril1, self.spiril2)
        self.output = Mobject(self.spiril1, self.spiril2)
        self.output.ingest_sub_mobjects()
        self.output.highlight(GREEN_A)

        self.interval = UnitInterval()
        self.interval.scale_to_fit_width(SPACE_WIDTH-1)
        self.interval.to_edge(LEFT)

        self.input_dot = Dot(color = self.input_color)
        self.output_dot = self.input_dot.copy().highlight(self.output_color)
        left, right = self.interval.get_left(), self.interval.get_right()
        self.input_homotopy = lambda (x, y, z, t) : (x, y, t) + interpolate(left, right, t)
        output_size = self.output.get_num_points()-1
        output_points = self.output.points        
        self.output_homotopy = lambda (x, y, z, t) : (x, y, z) + output_points[int(t*output_size)]

# 需要导入模块: from mobject import Mobject [as 别名]
# 或者: from mobject.Mobject import align_data [as 别名]
    def __init__(self, mobject, ending_mobject, **kwargs):
        mobject, ending_mobject = map(instantiate, [mobject, ending_mobject])
        digest_config(self, kwargs, locals())
        count1, count2 = mobject.get_num_points(), ending_mobject.get_num_points()
        if count2 == 0:
            ending_mobject.add_points([SPACE_WIDTH*RIGHT+SPACE_HEIGHT*UP])
            count2 = ending_mobject.get_num_points()
        Mobject.align_data(mobject, ending_mobject)
        if self.should_black_out_extra_points and count2 < count1:
            self.black_out_extra_points(count1, count2)

        Animation.__init__(self, mobject, **kwargs)
        self.name += "To" + str(ending_mobject)  
        self.mobject.point_thickness = ending_mobject.point_thickness

# 需要导入模块: from mobject import Mobject [as 别名]
# 或者: from mobject.Mobject import align_data [as 别名]
    def __init__(self, start_anim, end_anim, **kwargs):
        digest_config(self, kwargs, locals())
        if "run_time" in kwargs:
            self.run_time = kwargs.pop("run_time")
        else:
            self.run_time = max(start_anim.run_time, end_anim.run_time)
        for anim in start_anim, end_anim:
            anim.set_run_time(self.run_time)
            
        if start_anim.starting_mobject.get_num_points() != end_anim.starting_mobject.get_num_points():
            Mobject.align_data(start_anim.starting_mobject, end_anim.starting_mobject)
            for anim in start_anim, end_anim:
                if hasattr(anim, "ending_mobject"):
                    Mobject.align_data(anim.starting_mobject, anim.ending_mobject)

        Transform.__init__(self, start_anim.mobject, end_anim.mobject, **kwargs)
        #Rewire starting and ending mobjects
        start_anim.mobject = self.starting_mobject
        end_anim.mobject = self.ending_mobject