Add big_tick_spacing option NumberLine

manimlib/mobject/number_line.py

@@ -16,7 +16,7 @@
 from typing import TYPE_CHECKING
 
 if TYPE_CHECKING:
-    from typing import Iterable
+    from typing import Iterable, Optional
     from manimlib.typing import ManimColor, Vect3, Vect3Array, VectN, RangeSpecifier
 
 
@@ -28,12 +28,13 @@ def __init__(
         stroke_width: float = 2.0,
         # How big is one one unit of this number line in terms of absolute spacial distance
         unit_size: float = 1.0,
-        width: float | None = None,
+        width: Optional[float] = None,
         include_ticks: bool = True,
         tick_size: float = 0.1,
         longer_tick_multiple: float = 1.5,
         tick_offset: float = 0.0,
         # Change name
+        big_tick_spacing: Optional[float] = None,
         numbers_with_elongated_ticks: list[float] = [],
         include_numbers: bool = False,
         line_to_number_direction: Vect3 = DOWN,
@@ -54,7 +55,14 @@ def __init__(
         self.tick_size = tick_size
         self.longer_tick_multiple = longer_tick_multiple
         self.tick_offset = tick_offset
-        self.numbers_with_elongated_ticks = list(numbers_with_elongated_ticks)
+        if big_tick_spacing is not None:
+            self.numbers_with_elongated_ticks = np.arange(
+                x_range[0],
+                x_range[1] + big_tick_spacing,
+                big_tick_spacing,
+            )
+        else:
+            self.numbers_with_elongated_ticks = list(numbers_with_elongated_ticks)
         self.line_to_number_direction = line_to_number_direction
         self.line_to_number_buff = line_to_number_buff
         self.include_tip = include_tip