constants

The constants.py in the manimlib folder defines the constants needed when running manim. Some constants are not explained here because they are only used inside manim.

Frame and pixel shape

These values will be determined based on the camera configuration in default_config.yml or custom_config.yml

.. code-block:: python

ASPECT_RATIO
FRAME_HEIGHT
FRAME_WIDTH
FRAME_Y_RADIUS
FRAME_X_RADIUS

DEFAULT_PIXEL_HEIGHT
DEFAULT_PIXEL_WIDTH
DEFAULT_FPS

Buffs

These values will be determined based on the size configuration in default_config.yml or custom_config.yml

.. code-block:: python

SMALL_BUFF
MED_SMALL_BUFF
MED_LARGE_BUFF
LARGE_BUFF

DEFAULT_MOBJECT_TO_EDGE_BUFF
DEFAULT_MOBJECT_TO_MOBJECT_BUFF

Coordinates

manim uses three-dimensional coordinates and uses the type of ndarray

.. code-block:: python

ORIGIN = np.array((0., 0., 0.))
UP = np.array((0., 1., 0.))
DOWN = np.array((0., -1., 0.))
RIGHT = np.array((1., 0., 0.))
LEFT = np.array((-1., 0., 0.))
IN = np.array((0., 0., -1.))
OUT = np.array((0., 0., 1.))
X_AXIS = np.array((1., 0., 0.))
Y_AXIS = np.array((0., 1., 0.))
Z_AXIS = np.array((0., 0., 1.))

# Useful abbreviations for diagonals
UL = UP + LEFT
UR = UP + RIGHT
DL = DOWN + LEFT
DR = DOWN + RIGHT

TOP = FRAME_Y_RADIUS * UP
BOTTOM = FRAME_Y_RADIUS * DOWN
LEFT_SIDE = FRAME_X_RADIUS * LEFT
RIGHT_SIDE = FRAME_X_RADIUS * RIGHT

Mathematical constant

.. code-block:: python

PI = np.pi TAU = 2 * PI DEG = TAU / 360

Text

.. code-block:: python

NORMAL = "NORMAL"
ITALIC = "ITALIC"
OBLIQUE = "OBLIQUE"
BOLD = "BOLD"

Colours

Color constants are determined based on the color configuration in default_config.yml or custom_config.yml

Here are the preview of default colours. (Modified from elteoremadebeethoven <https://elteoremadebeethoven.github.io/manim_3feb_docs.github.io/html/_static/colors/colors.html>_)

.. raw:: html

<div style="float: left;">
<h3>BLUE</h3>
<div class="colors BLUE_E"><p class="color-text">BLUE_E</p></div>
<div class="colors BLUE_D"><p class="color-text">BLUE_D</p></div>
<div class="colors BLUE_C"><p class="color-text">BLUE_C</p></div>
<div class="colors BLUE_B"><p class="color-text">BLUE_B</p></div>
<div class="colors BLUE_A"><p class="color-text">BLUE_A</p></div>
</div>
<div style="float: left;">
<h3>TEAL</h3>
<div class="colors TEAL_E"><p class="color-text">TEAL_E</p></div>
<div class="colors TEAL_D"><p class="color-text">TEAL_D</p></div>
<div class="colors TEAL_C"><p class="color-text">TEAL_C</p></div>
<div class="colors TEAL_B"><p class="color-text">TEAL_B</p></div>
<div class="colors TEAL_A"><p class="color-text">TEAL_A</p></div>
</div>
<div style="float: left;">
<h3>GREEN</h3>
<div class="colors GREEN_E"><p class="color-text">GREEN_E</p></div>
<div class="colors GREEN_D"><p class="color-text">GREEN_D</p></div>
<div class="colors GREEN_C"><p class="color-text">GREEN_C</p></div>
<div class="colors GREEN_B"><p class="color-text">GREEN_B</p></div>
<div class="colors GREEN_A"><p class="color-text">GREEN_A</p></div>
</div>
<div style="float: left;">
<h3>YELLOW</h3>
<div class="colors YELLOW_E"><p class="color-text">YELLOW_E</p></div>
<div class="colors YELLOW_D"><p class="color-text">YELLOW_D</p></div>
<div class="colors YELLOW_C"><p class="color-text">YELLOW_C</p></div>
<div class="colors YELLOW_B"><p class="color-text">YELLOW_B</p></div>
<div class="colors YELLOW_A"><p class="color-text">YELLOW_A</p></div>
</div>
<div style="float: left;">
<h3>GOLD</h3>
<div class="colors GOLD_E"><p class="color-text">GOLD_E</p></div>
<div class="colors GOLD_D"><p class="color-text">GOLD_D</p></div>
<div class="colors GOLD_C"><p class="color-text">GOLD_C</p></div>
<div class="colors GOLD_B"><p class="color-text">GOLD_B</p></div>
<div class="colors GOLD_A"><p class="color-text">GOLD_A</p></div>
</div>
<div style="float: left;">
<h3>RED</h3>
<div class="colors RED_E"><p class="color-text">RED_E</p></div>
<div class="colors RED_D"><p class="color-text">RED_D</p></div>
<div class="colors RED_C"><p class="color-text">RED_C</p></div>
<div class="colors RED_B"><p class="color-text">RED_B</p></div>
<div class="colors RED_A"><p class="color-text">RED_A</p></div>
</div>
<div style="float: left;">
<h3>MAROON</h3>
<div class="colors MAROON_E"><p class="color-text">MAROON_E</p></div>
<div class="colors MAROON_D"><p class="color-text">MAROON_D</p></div>
<div class="colors MAROON_C"><p class="color-text">MAROON_C</p></div>
<div class="colors MAROON_B"><p class="color-text">MAROON_B</p></div>
<div class="colors MAROON_A"><p class="color-text">MAROON_A</p></div>
</div>
<div style="float: left;">
<h3>PURPLE</h3>
<div class="colors PURPLE_E"><p class="color-text">PURPLE_E</p></div>
<div class="colors PURPLE_D"><p class="color-text">PURPLE_D</p></div>
<div class="colors PURPLE_C"><p class="color-text">PURPLE_C</p></div>
<div class="colors PURPLE_B"><p class="color-text">PURPLE_B</p></div>
<div class="colors PURPLE_A"><p class="color-text">PURPLE_A</p></div>
</div>
<div style="float: left;">
<h3>GREY</h3>
<div class="colors GREY_E"><p class="color-text">GREY_E</p></div>
<div class="colors GREY_D"><p class="color-text">GREY_D</p></div>
<div class="colors GREY_C"><p class="color-text">GREY_C</p></div>
<div class="colors GREY_B"><p class="color-text">GREY_B</p></div>
<div class="colors GREY_A"><p class="color-text">GREY_A</p></div>
</div>
<div style="float: left;">
<h3>Others</h3>
<div class="colors WHITE"><p class="color-text" style="color: BLACK">WHITE</p></div>
<div class="colors BLACK"><p class="color-text">BLACK</p></div>
<div class="colors GREY_BROWN"><p class="color-text-small">GREY_BROWN</p></div>
<div class="colors DARK_BROWN"><p class="color-text-small">DARK_BROWN</p></div>
<div class="colors LIGHT_BROWN"><p class="color-text-small">LIGHT_BROWN</p></div>
<div class="colors PINK"><p class="color-text">PINK</p></div>
<div class="colors LIGHT_PINK"><p class="color-text-small">LIGHT_PINK</p></div>
<div class="colors GREEN_SCREEN"><p class="color-text-small">GREEN_SCREEN</p></div>
<div class="colors ORANGE"><p class="color-text">ORANGE</p></div>
</div>