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cut obstacles better to distribute them into altitude areas better

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This commit is contained in:
Laura Klünder 2017-11-18 14:38:25 +01:00
parent b7a8d15111
commit f65b15bb29
1 changed files with 16 additions and 11 deletions
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27
src/c3nav/mapdata/models/geometry/level.py
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@ -463,20 +463,23 @@ class AltitudeArea(LevelGeometryMixin, models.Model):
stairs = []
for space in level.spaces.all():
geom = space.geometry
space_geom = space.geometry
if space.outside:
geom = space_geom.difference(buildings_geom)
remaining_space = unary_union(
space_geom = space_geom.difference(buildings_geom)
holes_geom = unary_union(tuple(h.geometry for h in space.holes.all()))
remaining_space = (
tuple(c.geometry for c in space.columns.all()) +
tuple(o.geometry for o in space.obstacles.all()) +
tuple(o.buffered_geometry for o in space.lineobstacles.all())
).intersection(geom).difference(
unary_union(tuple(h.geometry for h in space.holes.all()))
)
if remaining_space.is_empty:
remaining_space = tuple(g.intersection(space_geom).difference(holes_geom) for g in remaining_space)
remaining_space = tuple(chain(*(
assert_multipolygon(g) for g in remaining_space if not g.is_empty
)))
if not remaining_space:
continue
bounds = geom.bounds
bounds = space_geom.bounds
max_len = ((bounds[0] - bounds[2]) ** 2 + (bounds[1] - bounds[3]) ** 2) ** 0.5
stairs = []
for stair in space.stairs.all():
@ -487,11 +490,13 @@ class AltitudeArea(LevelGeometryMixin, models.Model):
scaled = scale(line, xfact=fact, yfact=fact)
stairs.append(scaled)
remaining_space = MultiPolygon(tuple(
orient(polygon) for polygon in assert_multipolygon(remaining_space)
))
remaining_space = tuple(
orient(polygon) for polygon in remaining_space
)
for stair in stairs:
remaining_space = MultiPolygon(cut_polygon_with_line(remaining_space, stair))
remaining_space = tuple(chain(*(cut_polygon_with_line(geom, stair)
for geom in remaining_space)))
remaining_space = MultiPolygon(remaining_space)
for polygon in assert_multipolygon(remaining_space):
polygon = clean_cut_polygon(polygon)