Repository: ManimCommunity/manim
File: manim/mobject/vector_field.py (Python)

Code before:
    def __init__(
        self,
        func: Callable[[np.ndarray], np.ndarray],
        color: Optional[Color] = None,
        color_scheme: Optional[Callable[[np.ndarray], float]] = None,
        min_color_scheme_value: float = 0,
        max_color_scheme_value: float = 2,
        colors: Sequence[Color] = DEFAULT_SCALAR_FIELD_COLORS,
        # Determining stream line starting positions:
        x_range: Sequence[float] = None,
        y_range: Sequence[float] = None,
        z_range: Sequence[float] = None,
        three_dimensions: bool = False,
        noise_factor: Optional[float] = None,
        n_repeats=1,
        # Determining how lines are drawn
        dt=0.05,
        virtual_time=3,
        max_anchors_per_line=100,
        padding=3,
        # Determining stream line appearance:
        stroke_width=1,
        opacity=1,
        **kwargs
    ):
        self.x_range = x_range
        self.y_range = y_range
        self.ranges = [self.x_range, self.y_range]

        if three_dimensions or z_range:
            self.z_range = z_range or self.y_range.copy()
            self.ranges += [self.z_range]
        else:
            self.ranges += [[0, 0]]

        for i in range(len(self.ranges)):
            if len(self.ranges[i]) == 2:
                self.ranges[i] += [0.5]
            self.ranges[i][1] += self.ranges[i][2]

        self.x_range, self.y_range, self.z_range = self.ranges

        super().__init__(
            func,
            color,
            color_scheme,
            min_color_scheme_value,
            max_color_scheme_value,
            colors,
            **kwargs,
        )

Review comment (suggestion):
```suggestion
        self.x_range = x_range or [
            floor(-config["frame_width"] / 2),
            ceil(config["frame_width"] / 2),
        ]
```

Code after:

    """

    def __init__(
        self,
        func: Callable[[np.ndarray], np.ndarray],
        color: Optional[Color] = None,
        color_scheme: Optional[Callable[[np.ndarray], float]] = None,
        min_color_scheme_value: float = 0,
        max_color_scheme_value: float = 2,
        colors: Sequence[Color] = DEFAULT_SCALAR_FIELD_COLORS,
        # Determining stream line starting positions:
        x_range: Sequence[float] = None,
        y_range: Sequence[float] = None,
        z_range: Sequence[float] = None,
        three_dimensions: bool = False,
        noise_factor: Optional[float] = None,
        n_repeats=1,
        # Determining how lines are drawn
        dt=0.05,
        virtual_time=3,
        max_anchors_per_line=100,
        padding=3,
        # Determining stream line appearance:
        stroke_width=1,
        opacity=1,
        **kwargs
    ):
        self.x_range = x_range or [
            floor(-config["frame_width"] / 2),
            ceil(config["frame_width"] / 2),
        ]
        self.y_range = y_range or [
            floor(-config["frame_height"] / 2),
            ceil(config["frame_height"] / 2),
        ]
        self.ranges = [self.x_range, self.y_range]

        if three_dimensions or z_range:
            self.z_range = z_range or self.y_range.copy()
            self.ranges += [self.z_range]
        else:
            self.ranges += [[0, 0]]

        for i in range(len(self.ranges)):
            if len(self.ranges[i]) == 2:
                self.ranges[i] += [0.5]
            self.ranges[i][1] += self.ranges[i][2]

        self.x_range, self.y_range, self.z_range = self.ranges