Added a cleanup step to re calulate the center

This change calculates the center of each entry and compares it to the
current center. If they are different, the center get's updated.
This commit is contained in:
Fabian Wunsch 2022-04-09 21:08:36 +02:00
parent bf834a6565
commit 706f2b32b0

View file

@ -188,7 +188,49 @@ def convert_subreddit_to_website(entry: dict):
entry["subreddit"] = "" entry["subreddit"] = ""
return entry return entry
def calculate_center(path: list):
"""
Caluclates the center of a polygon
adapted from /web/_js/draw.js:calucalteCenter()
"""
area = 0
x = 0
y = 0
for i in range(len(path)):
point1 = path[i]
point2 = path[i-1 if i != 0 else len(path)-1]
f = point1[0] * point2[1] - point2[0] * point1[1]
area += f
x += (point1[0] + point2[0]) * f
y += (point1[1] + point2[1]) * f
area *= 3
if area != 0:
return [x // area + 0.5, y // area + 0.5]
else:
# get the center of a straight line
max_x = max(i[0] for i in path)
min_x = min(i[0] for i in path)
max_y = max(i[1] for i in path)
min_y = min(i[1] for i in path)
return [(max_x + min_x) // 2 + 0.5, (max_y + min_y) // 2 + 0.5]
def update_center(entry: dict):
"""
checks if the center of a entry is up to date, and updates it if it's either missing or outdated
"""
if 'path' not in entry:
return entry
path = entry['path']
if len(path) > 1:
calculated_center = calculate_center(path)
if 'center' not in entry or entry['center'] != calculated_center:
entry['center'] = calculated_center
return entry
def validate(entry: dict): def validate(entry: dict):
""" """
@ -256,6 +298,8 @@ def print_(*args, **kwargs):
entry = fix_no_protocol_urls(entry) entry = fix_no_protocol_urls(entry)
print_("Removing extras...") print_("Removing extras...")
entry = remove_extras(entry) entry = remove_extras(entry)
print_("Updating center")
entry = update_center(entry)
print_("Validating...") print_("Validating...")
status_code = validate(entry) status_code = validate(entry)
print_("Completed!") print_("Completed!")
@ -287,4 +331,4 @@ def go(path):
print("Writing completed. All done.") print("Writing completed. All done.")
go("../web/atlas.json") go("../web/atlas.json")