forked from s_ranjbar/city_retrofit
77 lines
2.8 KiB
Python
77 lines
2.8 KiB
Python
"""
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CityGmlLod1 module parses citygml files with level of detail 1 and import the geometry into the city model structure
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SPDX - License - Identifier: LGPL - 3.0 - or -later
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Copyright © 2021 Project Author Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
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"""
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from imports.geometry.citygml_base import CityGmlBase
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from city_model_structure.attributes.surface import Surface
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from city_model_structure.attributes.polygon import Polygon
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from imports.geometry.helpers.geometry_helper import GeometryHelper
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class CityGmlLod2(CityGmlBase):
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"""
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CityGmlLod1 class to parse level of detail 1 city gml files
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"""
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def __init__(self, o):
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super().__init__()
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self._o = o
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self._surfaces = self._identify(self._o)
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@classmethod
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def _identify(cls, o):
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if 'lod2Solid' in o:
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return cls._solid(o)
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elif 'lod2MultiSurface' in o:
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return cls._multi_surface(o)
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elif 'lod2MultiCurve' in o:
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return cls._multi_curve(o)
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@staticmethod
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def _surface_encoding(surfaces):
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if 'lod2MultiSurface' in surfaces:
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return 'lod2MultiSurface', 'MultiSurface'
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raise NotImplementedError('unknown surface type')
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@classmethod
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def _solid(cls, o):
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surfaces = []
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for b in o["boundedBy"]:
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surface_type = next(iter(b))
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surface_encoding, surface_subtype = cls._surface_encoding(b[surface_type])
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for member in b[surface_type][surface_encoding][surface_subtype]['surfaceMember']:
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if '@srsDimension' in member['Polygon']['exterior']['LinearRing']['posList']:
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gml_points = member['Polygon']['exterior']['LinearRing']['posList']["#text"]
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else:
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gml_points = member['Polygon']['exterior']['LinearRing']['posList']
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sp = cls._solid_points(cls._remove_last_point(gml_points))
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p = Polygon(sp)
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surface = Surface(p, p, surface_type=GeometryHelper.gml_surface_to_libs(surface_type))
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surfaces.append(surface)
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return surfaces
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@classmethod
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def _multi_curve(cls, o):
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raise NotImplementedError('multi curve')
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@classmethod
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def _multi_surface(cls, o):
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surfaces = []
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for b in o["boundedBy"]:
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try:
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surface_type = next(iter(b))
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except TypeError:
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continue
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surface_encoding, surface_subtype = cls._surface_encoding(b[surface_type])
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for member in b[surface_type][surface_encoding][surface_subtype]['surfaceMember']:
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if '@srsDimension' in member['Polygon']['exterior']['LinearRing']['posList']:
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gml_points = member['Polygon']['exterior']['LinearRing']['posList']["#text"]
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else:
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gml_points = member['Polygon']['exterior']['LinearRing']['posList']
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sp = cls._solid_points(cls._remove_last_point(gml_points))
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p = Polygon(sp)
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surface = Surface(p, p, surface_type=GeometryHelper.gml_surface_to_libs(surface_type))
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surfaces.append(surface)
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return surfaces
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