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


class CityGmlTools:

  @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 surface point matrix [[x, y, z],[x, y, z],...]
    :parameter coordinates: string from file
    :return: np.ndarray
    """
    solid_points = np.fromstring(coordinates, dtype=float, sep=' ')
    solid_points = GeometryHelper.to_points_matrix(solid_points)
    return solid_points