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190 lines
6.6 KiB
ReStructuredText
190 lines
6.6 KiB
ReStructuredText
constants
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=========
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The ``constants.py`` in the ``manimlib`` folder defines the constants
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needed when running manim. Some constants are not explained here because
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they are only used inside manim.
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Frame and pixel shape
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---------------------
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.. code-block:: python
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ASPECT_RATIO = 16.0 / 9.0
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FRAME_HEIGHT = 8.0
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FRAME_WIDTH = FRAME_HEIGHT * ASPECT_RATIO
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FRAME_Y_RADIUS = FRAME_HEIGHT / 2
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FRAME_X_RADIUS = FRAME_WIDTH / 2
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DEFAULT_PIXEL_HEIGHT = 1080
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DEFAULT_PIXEL_WIDTH = 1920
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DEFAULT_FRAME_RATE = 30
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Buffs
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-----
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.. code-block:: python
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SMALL_BUFF = 0.1
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MED_SMALL_BUFF = 0.25
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MED_LARGE_BUFF = 0.5
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LARGE_BUFF = 1
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DEFAULT_MOBJECT_TO_EDGE_BUFFER = MED_LARGE_BUFF # Distance between object and edge
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DEFAULT_MOBJECT_TO_MOBJECT_BUFFER = MED_SMALL_BUFF # Distance between objects
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Run times
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---------
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.. code-block:: python
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DEFAULT_POINTWISE_FUNCTION_RUN_TIME = 3.0
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DEFAULT_WAIT_TIME = 1.0
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Coordinates
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-----------
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manim uses three-dimensional coordinates and uses the type of ``ndarray``
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.. code-block:: python
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ORIGIN = np.array((0., 0., 0.))
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UP = np.array((0., 1., 0.))
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DOWN = np.array((0., -1., 0.))
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RIGHT = np.array((1., 0., 0.))
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LEFT = np.array((-1., 0., 0.))
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IN = np.array((0., 0., -1.))
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OUT = np.array((0., 0., 1.))
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X_AXIS = np.array((1., 0., 0.))
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Y_AXIS = np.array((0., 1., 0.))
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Z_AXIS = np.array((0., 0., 1.))
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# Useful abbreviations for diagonals
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UL = UP + LEFT
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UR = UP + RIGHT
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DL = DOWN + LEFT
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DR = DOWN + RIGHT
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TOP = FRAME_Y_RADIUS * UP
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BOTTOM = FRAME_Y_RADIUS * DOWN
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LEFT_SIDE = FRAME_X_RADIUS * LEFT
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RIGHT_SIDE = FRAME_X_RADIUS * RIGHT
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Mathematical constant
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---------------------
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.. code-block:: python
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PI = np.pi
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TAU = 2 * PI
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DEGREES = TAU / 360
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Text
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----
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.. code-block:: python
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NORMAL = "NORMAL"
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ITALIC = "ITALIC"
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OBLIQUE = "OBLIQUE"
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BOLD = "BOLD"
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Stroke width
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------------
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.. code-block:: python
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DEFAULT_STROKE_WIDTH = 4
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Colours
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-------
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Here are the preview of default colours. (Modified from
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`elteoremadebeethoven <https://elteoremadebeethoven.github.io/manim_3feb_docs.github.io/html/_static/colors/colors.html>`_)
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.. raw:: html
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<div style="float: left;">
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<h3>BLUE</h3>
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<div class="colors BLUE_E"><p class="color-text">BLUE_E</p></div>
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<div class="colors BLUE_D"><p class="color-text">BLUE_D</p></div>
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<div class="colors BLUE_C"><p class="color-text">BLUE_C</p></div>
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<div class="colors BLUE_B"><p class="color-text">BLUE_B</p></div>
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<div class="colors BLUE_A"><p class="color-text">BLUE_A</p></div>
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</div>
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<div style="float: left;">
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<h3>TEAL</h3>
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<div class="colors TEAL_E"><p class="color-text">TEAL_E</p></div>
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<div class="colors TEAL_D"><p class="color-text">TEAL_D</p></div>
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<div class="colors TEAL_C"><p class="color-text">TEAL_C</p></div>
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<div class="colors TEAL_B"><p class="color-text">TEAL_B</p></div>
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<div class="colors TEAL_A"><p class="color-text">TEAL_A</p></div>
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</div>
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<div style="float: left;">
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<h3>GREEN</h3>
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<div class="colors GREEN_E"><p class="color-text">GREEN_E</p></div>
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<div class="colors GREEN_D"><p class="color-text">GREEN_D</p></div>
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<div class="colors GREEN_C"><p class="color-text">GREEN_C</p></div>
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<div class="colors GREEN_B"><p class="color-text">GREEN_B</p></div>
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<div class="colors GREEN_A"><p class="color-text">GREEN_A</p></div>
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</div>
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<div style="float: left;">
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<h3>YELLOW</h3>
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<div class="colors YELLOW_E"><p class="color-text">YELLOW_E</p></div>
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<div class="colors YELLOW_D"><p class="color-text">YELLOW_D</p></div>
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<div class="colors YELLOW_C"><p class="color-text">YELLOW_C</p></div>
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<div class="colors YELLOW_B"><p class="color-text">YELLOW_B</p></div>
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<div class="colors YELLOW_A"><p class="color-text">YELLOW_A</p></div>
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</div>
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<div style="float: left;">
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<h3>GOLD</h3>
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<div class="colors GOLD_E"><p class="color-text">GOLD_E</p></div>
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<div class="colors GOLD_D"><p class="color-text">GOLD_D</p></div>
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<div class="colors GOLD_C"><p class="color-text">GOLD_C</p></div>
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<div class="colors GOLD_B"><p class="color-text">GOLD_B</p></div>
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<div class="colors GOLD_A"><p class="color-text">GOLD_A</p></div>
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</div>
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<div style="float: left;">
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<h3>RED</h3>
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<div class="colors RED_E"><p class="color-text">RED_E</p></div>
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<div class="colors RED_D"><p class="color-text">RED_D</p></div>
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<div class="colors RED_C"><p class="color-text">RED_C</p></div>
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<div class="colors RED_B"><p class="color-text">RED_B</p></div>
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<div class="colors RED_A"><p class="color-text">RED_A</p></div>
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</div>
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<div style="float: left;">
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<h3>MAROON</h3>
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<div class="colors MAROON_E"><p class="color-text">MAROON_E</p></div>
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<div class="colors MAROON_D"><p class="color-text">MAROON_D</p></div>
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<div class="colors MAROON_C"><p class="color-text">MAROON_C</p></div>
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<div class="colors MAROON_B"><p class="color-text">MAROON_B</p></div>
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<div class="colors MAROON_A"><p class="color-text">MAROON_A</p></div>
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</div>
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<div style="float: left;">
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<h3>PURPLE</h3>
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<div class="colors PURPLE_E"><p class="color-text">PURPLE_E</p></div>
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<div class="colors PURPLE_D"><p class="color-text">PURPLE_D</p></div>
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<div class="colors PURPLE_C"><p class="color-text">PURPLE_C</p></div>
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<div class="colors PURPLE_B"><p class="color-text">PURPLE_B</p></div>
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<div class="colors PURPLE_A"><p class="color-text">PURPLE_A</p></div>
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</div>
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<div style="float: left;">
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<h3>GREY</h3>
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<div class="colors GREY_E"><p class="color-text">GREY_E</p></div>
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<div class="colors GREY_D"><p class="color-text">GREY_D</p></div>
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<div class="colors GREY_C"><p class="color-text">GREY_C</p></div>
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<div class="colors GREY_B"><p class="color-text">GREY_B</p></div>
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<div class="colors GREY_A"><p class="color-text">GREY_A</p></div>
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</div>
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<div style="float: left;">
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<h3>Others</h3>
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<div class="colors WHITE"><p class="color-text" style="color: BLACK">WHITE</p></div>
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<div class="colors BLACK"><p class="color-text">BLACK</p></div>
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<div class="colors GREY_BROWN"><p class="color-text-small">GREY_BROWN</p></div>
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<div class="colors DARK_BROWN"><p class="color-text-small">DARK_BROWN</p></div>
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<div class="colors LIGHT_BROWN"><p class="color-text-small">LIGHT_BROWN</p></div>
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<div class="colors PINK"><p class="color-text">PINK</p></div>
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<div class="colors LIGHT_PINK"><p class="color-text-small">LIGHT_PINK</p></div>
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<div class="colors GREEN_SCREEN"><p class="color-text-small">GREEN_SCREEN</p></div>
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<div class="colors ORANGE"><p class="color-text">ORANGE</p></div>
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</div>
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