constants

间距

SMALL_BUFF = 0.1
MED_SMALL_BUFF = 0.25
MED_LARGE_BUFF = 0.5
LARGE_BUFF = 1

DEFAULT_ITEM_TO_EDGE_BUFF = MED_LARGE_BUFF  # Distance between object and edge
DEFAULT_ITEM_TO_ITEM_BUFF = MED_SMALL_BUFF  # Distance between objects

坐标

JAnim 使用三维坐标，并且用 ndarray 的类型

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.))

NAN_POINT = np.full(3, np.nan)

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

小技巧

可以通过 Config.get 得到画面边界上的坐标

Config.get.left_side
Config.get.right_side
Config.get.bottom
Config.get.top

另见：Config

数学常数

PI = np.pi
TAU = 2 * PI
DEGREES = TAU / 360
# Nice to have a constant for readability
# when juxtaposed with expressions like 30 * DEGREES
RADIANS = 1

颜色

颜色相关工具和预览可以使用：

• JAnim 自带工具：在命令行中输入 janim tool color 或者在 GUI 界面左上角的“工具”中点击“颜色”

• 在线工具：颜色工具 - MK官网

这里是 JAnim 中定义的颜色的预览：(修改自 docs.manim.org.cn (备份页面 manimgl-zh.readthedocs.io))

BLUE

BLUE_E

#1C758A

BLUE_D

#29ABCA

BLUE_C

#58C4DD

BLUE_B

#9CDCEB

BLUE_A

#C7E9F1

TEAL

TEAL_E

#49A88F

TEAL_D

#55C1A7

TEAL_C

#5CD0B3

TEAL_B

#76DDC0

TEAL_A

#ACEAD7

GREEN

GREEN_E

#699C52

GREEN_D

#77B05D

GREEN_C

#83C167

GREEN_B

#A6CF8C

GREEN_A

#C9E2AE

YELLOW

YELLOW_E

#E8C11C

YELLOW_D

#F4D345

YELLOW_C

#FFFF00

YELLOW_B

#FFEA94

YELLOW_A

#FFF1B6

GOLD

GOLD_E

#C78D46

GOLD_D

#E1A158

GOLD_C

#F0AC5F

GOLD_B

#F9B775

GOLD_A

#F7C797

RED

RED_E

#CF5044

RED_D

#E65A4C

RED_C

#FC6255

RED_B

#FF8080

RED_A

#F7A1A3

MAROON

MAROON_E

#94424F

MAROON_D

#A24D61

MAROON_C

#C55F73

MAROON_B

#EC92AB

MAROON_A

#ECABC1

PURPLE

PURPLE_E

#644172

PURPLE_D

#715582

PURPLE_C

#9A72AC

PURPLE_B

#B189C6

PURPLE_A

#CAA3E8

GREY

GREY_E

#222222

GREY_D

#444444

GREY_C

#888888

GREY_B

#BBBBBB

GREY_A

#DDDDDD

Others

PURE_RED

#FF0000

PURE_GREEN

#00FF00

PURE_BLUE

#0000FF

WHITE

#FFFFFF

BLACK

#000000

GREY_BROWN

#736357

DARK_BROWN

#8B4513

LIGHT_BROWN

#CD853F

ORANGE

#FF862F

PINK

#D147BD

LIGHT_PINK

#DC75CD

备注

由于历史遗留因素，这里的 YELLOW_C 与 YELLOW_ 系的颜色并不一致