55 lines
1.5 KiB
Python
55 lines
1.5 KiB
Python
"""
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export a city into Glb format
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SPDX - License - Identifier: LGPL - 3.0 - or -later
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Copyright © 2022 Concordia CERC group
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Project Coder Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
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"""
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import os
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import shutil
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import subprocess
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from hub.city_model_structure.city import City
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from hub.exports.formats.obj import Obj
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class GltExceptionError(Exception):
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"""
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Glt execution error
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"""
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class Glb:
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"""
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Glb class
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"""
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def __init__(self, city, path, target_buildings=None):
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self._city = city
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self._path = path
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if target_buildings is None:
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target_buildings = [b.name for b in self._city.buildings]
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self._target_buildings = target_buildings
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self._export()
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@property
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def _obj2gltf(self):
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return shutil.which('obj2gltf')
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def _export(self):
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try:
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for building in self._city.buildings:
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city = City(self._city.lower_corner, self._city.upper_corner, self._city.srs_name)
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city.add_city_object(building)
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city.name = building.name
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Obj(city, self._path)
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glb = f'{self._path}/{building.name}.glb'
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subprocess.run([
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self._obj2gltf,
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'-i', f'{self._path}/{building.name}.obj',
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'-b',
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'-o', f'{glb}'
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])
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os.unlink(f'{self._path}/{building.name}.obj')
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os.unlink(f'{self._path}/{building.name}.mtl')
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except (subprocess.SubprocessError, subprocess.TimeoutExpired, subprocess.CalledProcessError) as err:
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raise GltExceptionError from err
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