2025-summer/team-3
12
Fork 0
Code Issues Pull requests Projects Releases Activity

add geometry bounds for easier querying

Browse source
This commit is contained in:
Laura Klünder 2017-10-10 13:26:46 +02:00
parent 025eb0dfae
commit 99f9aac0c3
2 changed files with 356 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

13
src/c3nav/mapdata/models/geometry/base.py
View file

@ -1,5 +1,7 @@
from collections import OrderedDict
from django.db import models
from django.utils.translation import ugettext_lazy as _
from shapely.geometry import Point, mapping
from c3nav.mapdata.models.base import SerializableMixin
@ -11,6 +13,10 @@ class GeometryMixin(SerializableMixin):
A map feature with a geometry
"""
geometry = None
minx = models.DecimalField(_('min x coordinate'), max_digits=6, decimal_places=2, db_index=True)
miny = models.DecimalField(_('min y coordinate'), max_digits=6, decimal_places=2, db_index=True)
maxx = models.DecimalField(_('max x coordinate'), max_digits=6, decimal_places=2, db_index=True)
maxy = models.DecimalField(_('max y coordinate'), max_digits=6, decimal_places=2, db_index=True)
class Meta:
abstract = True
@ -59,3 +65,10 @@ class GeometryMixin(SerializableMixin):
def contains(self, x, y) -> bool:
return self.geometry.contains(Point(x, y))
def recalculate_bounds(self):
self.minx, self.miny, self.maxx, self.maxy = self.geometry.bounds
def save(self, *args, **kwargs):
self.recalculate_bounds()
super().save(*args, **kwargs)