blender render engine subtract altitude areas

This commit is contained in:
Laura Klünder 2018-12-05 20:58:51 +01:00
parent b2e6443200
commit 41504af119

View file

@ -4,7 +4,7 @@ from itertools import chain
import numpy as np
from shapely import prepared
from shapely.affinity import scale
from shapely.geometry import LineString, Point
from shapely.geometry import JOIN_STYLE, LineString, Point
from shapely.ops import unary_union
from c3nav.mapdata.render.engines import register_engine
@ -187,6 +187,7 @@ class BlenderEngine(Base3DEngine):
extrude_object(top_obj, height)
subtract_object(obj, top_obj, delete_after=True)
main_object = None
polygons_for_join = []
current_mesh_plane = None
''')
@ -280,34 +281,37 @@ class BlenderEngine(Base3DEngine):
self._add_polygon('Level %s buildings' % geoms.short_label, geoms.buildings,
last_min_z-1000, current_max_z+1000)
self._set_last_polygon_to_main()
self._cut_last_poly_with_mesh_planes(last_min_z-1000, current_max_z+1000)
for altitudearea in geoms.altitudeareas:
break
name = 'Level %s Altitudearea %s' % (geoms.short_label, altitudearea.altitude)
buffered_geom = altitudearea.geometry.buffer(0).buffer(0.01, join_style=JOIN_STYLE.mitre)
if altitudearea.altitude2 is not None:
self._debug('slope start')
min_slope_altitude = min(altitudearea.altitude, altitudearea.altitude2)
max_slope_altitude = max(altitudearea.altitude, altitudearea.altitude2)
self._add_polygon(name, altitudearea.geometry, min_slope_altitude, max_slope_altitude)
bounds = altitudearea.geometry.bounds
self._add_slope(bounds, altitudearea.altitude, altitudearea.altitude2,
altitudearea.point1, altitudearea.point2)
self._add_polygon(name, buffered_geom, min_slope_altitude-10, current_max_z+1000)
bounds = buffered_geom.bounds
self._add_slope(bounds, altitudearea.altitude-10, altitudearea.altitude2-10,
altitudearea.point1, altitudearea.point2, bottom=True)
self._subtract_slope()
self._collect_last_polygon_for_join()
self._add_polygon(name, altitudearea.geometry, min_altitude-700, min_slope_altitude)
self._collect_last_polygon_for_join()
self._join_polygons()
self._debug('slope continue')
self._subtract_last_polygon_from_main()
self._debug('slope end')
else:
self._add_polygon(name, altitudearea.geometry, min_altitude-700, altitudearea.altitude)
self._add_polygon(name, buffered_geom,
altitudearea.altitude, current_max_z+1000)
self._subtract_last_polygon_from_main()
break
def _add_polygon(self, name, geometry, minz, maxz):
geometry = geometry.buffer(0)
self._add_python('sub_polygons = []')
for polygon in assert_multipolygon(geometry):
self._add_python(
'last_polygon = add_polygon(name=%(name)r, exterior=%(exterior)r, interiors=%(interiors)r, '
'minz=%(minz)f, maxz=%(maxz)f)' % {
'sub_polygons.append(add_polygon(name=%(name)r, exterior=%(exterior)r, interiors=%(interiors)r, '
'minz=%(minz)f, maxz=%(maxz)f))' % {
'name': name,
'exterior': tuple(polygon.exterior.coords),
'interiors': tuple(tuple(interior.coords) for interior in polygon.interiors),
@ -315,10 +319,10 @@ class BlenderEngine(Base3DEngine):
'maxz': maxz/1000,
}
)
self._collect_last_polygon_for_join()
self._join_polygons()
self._add_python('last_polygon = sub_polygons[0]')
self._add_python('join_objects(sub_polygons)')
def _add_slope(self, bounds, altitude1, altitude2, point1, point2):
def _add_slope(self, bounds, altitude1, altitude2, point1, point2, bottom=False):
altitude_diff = altitude2-altitude1
altitude_middle = (altitude1+altitude2)/2
altitude_halfdiff = altitude_diff/2
@ -340,11 +344,14 @@ class BlenderEngine(Base3DEngine):
z = ((pos/line.length)*altitude_diff)+altitude_base
points_3d.append((x, y, z/1000))
extrude = abs(altitude1-altitude2)/1000+100
if bottom:
extrude = -extrude
self._add_python(
'last_slope = add_polygon_3d(name=%(name)r, coords=%(coords)r, extrude=%(extrude)f)' % {
'name': 'tmpslope',
'coords': tuple(points_3d),
'extrude': abs(altitude1-altitude2)/1000+1,
'extrude': extrude,
}
)
@ -365,6 +372,13 @@ class BlenderEngine(Base3DEngine):
def _subtract_slope(self):
self._add_python('subtract_object(last_polygon, last_slope, delete_after=True)')
def _set_last_polygon_to_main(self):
self._add_python('main_object = last_polygon')
def _subtract_last_polygon_from_main(self):
self._add_python('subtract_object(main_object, last_polygon, delete_after=True)')
self._add_python('last_polygon = main_object')
def _collect_last_polygon_for_join(self):
self._add_python('polygons_for_join.append(last_polygon)')
@ -376,5 +390,8 @@ class BlenderEngine(Base3DEngine):
self._add_python('last_polygon = polygons_for_join[0]')
self._clear_polygons_for_join()
def _debug(self, message):
self._add_python('print(%r)' % message)
def render(self, filename=None):
return self.result.encode()