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Merge pull request #127 from 3b1b/WindingNumber

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Winding number
This commit is contained in:
Grant Sanderson
2018-02-15 18:52:43 -08:00
committed by GitHub
parent 4d457cb5c4 5ad5b7cd76
commit b06e8818f4
3 changed files with 3 additions and 7 deletions
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4
active_projects/WindingNumber.py
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@ -1041,8 +1041,8 @@ class VectorField(Scene):
x_min, y_min = num_plane.point_to_coords(SPACE_WIDTH * LEFT + SPACE_HEIGHT * UP)
x_max, y_max = num_plane.point_to_coords(SPACE_WIDTH * RIGHT + SPACE_HEIGHT * DOWN)
x_points = range_via_num_steps(x_min, x_max, self.granularity)
y_points = range_via_num_steps(y_min, y_max, self.granularity)
x_points = np.linspace(x_min, x_max, self.granularity)
y_points = np.linspace(y_min, y_max, self.granularity)
points = it.product(x_points, y_points)
sized_arrows = Group()

2
extract_scene.py
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@ -73,7 +73,7 @@ def get_configuration():
if args.output_name != None:
output_name_root, output_name_ext = os.path.splitext(args.output_name)
expected_ext = '.png' if args.show_last_frame else '.mp4'
if not output_name_ext in ['', expected_ext]
if not output_name_ext in ['', expected_ext]:
print "WARNING: The output will be to (doubly-dotted) %s%s"%output_name_root%expected_ext
output_name = args.output_name
else:

4
helpers.py
View File

@ -689,10 +689,6 @@ class DictAsObject(object):
def fdiv(a, b):
return np.true_divide(a,b)
def range_via_num_steps(start, end, num_steps, include_end = True):
num_points = num_steps + (1 if include_end else 0)
return [interpolate(start, end, fdiv(i, num_steps)) for i in range(num_points)]
# For debugging purposes
def print_mobject_family(mob, n_tabs = 0):