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when splitting areas along stairs, update connected_to attribute

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Laura Klünder 2017-08-05 15:54:15 +02:00
parent d685a07e5b
commit 451a863026
1 changed files with 14 additions and 0 deletions
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14
src/c3nav/mapdata/models/geometry/level.py
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@ -1,5 +1,6 @@
from django.db import models
from django.utils.translation import ugettext_lazy as _
from shapely.geometry import JOIN_STYLE
from shapely.ops import cascaded_union
from c3nav.mapdata.fields import GeometryField
@ -148,6 +149,7 @@ class AltitudeArea(LevelGeometryMixin, models.Model):
new_area.spaces = area.spaces
space_areas[next(iter(area.spaces))].append(new_area)
else:
# update area spaces
for subarea in (area, new_area):
spaces_before = subarea.spaces
subarea.spaces = set(space for space in original_spaces
@ -156,6 +158,18 @@ class AltitudeArea(LevelGeometryMixin, models.Model):
space_areas[space].remove(subarea)
for space in subarea.spaces-spaces_before:
space_areas[space].append(subarea)
# update area connections
buffer_area = area.geometry.buffer(0.0005, join_style=JOIN_STYLE.mitre)
new_area_connected_to = []
for other_area in area.connected_to:
if not buffer_area.intersects(other_area.geometry):
new_area_connected_to.append(other_area)
other_area.connected_to.remove(area)
other_area.connected_to.append(new_area)
for other_area in new_area_connected_to:
area.connected_to.remove(other_area)
new_area.connected_to.extend(new_area_connected_to)
break
else:
raise ValueError