hub/imports/geometry/citygml_classes/citygml_base.py

"""
CityGmlBase module abstract class to template the different level of details
SPDX - License - Identifier: LGPL - 3.0 - or -later
Copyright © 2021 Project Author Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
"""

from abc import ABC
import numpy as np
from imports.geometry.helpers.geometry_helper import GeometryHelper


class CityGmlBase(ABC):
  """
  CityGmlBase class inherited by the specific level of detail classes.
  """
  def __init__(self):
    self._surfaces = []

  @property
  def surfaces(self):
    """
    Get parsed surfaces
    """
    return self._surfaces

  @staticmethod
  def _remove_last_point(points):
    array = points.split(' ')
    res = " "
    return res.join(array[0:len(array) - 3])

  @staticmethod
  def _solid_points(coordinates) -> np.ndarray:
    solid_points = np.fromstring(coordinates, dtype=float, sep=' ')
    solid_points = GeometryHelper.to_points_matrix(solid_points)
    return solid_points

  @classmethod
  def _solid(cls, city_object_member):
    raise NotImplementedError

  @classmethod
  def _multi_surface(cls, city_object_member):
    raise NotImplementedError

  @classmethod
  def _multi_curve(cls, city_object_member):
    raise NotImplementedError