Source code for qsrlib_qsrs.qsr_rcc4

# -*- coding: utf-8 -*-
from __future__ import print_function, division
from qsrlib_qsrs.qsr_rcc_abstractclass import QSR_RCC_Abstractclass


[docs]class QSR_RCC4(QSR_RCC_Abstractclass): """Symmetrical RCC4 relations. Values of the abstract properties * **_unique_id** = "rcc4" * **_all_possible_relations** = ("dc", "po", "pp", "ppi") * **_dtype** = "bounding_boxes_2d" QSR specific `dynamic_args` * **'quantisation_factor'** (*float*) = 0.0: Threshold that determines whether two rectangle regions are disconnected. .. seealso:: For further details about RCC4, refer to its :doc:`description. <../handwritten/qsrs/rcc4>` """ _unique_id = "rcc4" _all_possible_relations = ("dc", "po", "pp", "ppi") __mapping_from_rcc8 = {"dc": "dc", "ec": "po", "po": "po", "tpp": "pp", "ntpp": "pp", "eq": "pp", "tppi": "ppi", "ntppi": "ppi"} def __init__(self): super(QSR_RCC4, self).__init__() def _convert_to_requested_rcc_type(self, qsr): return self.__mapping_from_rcc8[qsr]