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nietzsche-python/svgscripts/datatypes/line.py
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line.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
""" This class can be used to represent a line.
"""
# Copyright (C) University of Basel 2019 {{{1
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/> 1}}}
__author__ = "Christian Steiner"
__maintainer__ = __author__
__copyright__ = 'University of Basel'
__email__ = "christian.steiner@unibas.ch"
__status__ = "Development"
__license__ = "GPL v3"
__version__ = "0.0.1"
import re
from lxml import etree as ET
from os.path import isfile
import sys
from .matrix import Matrix
sys.path.append('py2ttl')
from class_spec import SemanticClass
class Line(SemanticClass):
"""
This class represents a line on a page.
@label a line on a page
Args:
id (int)
bottom (float)
top (float)
"""
XML_TAG = 'line-number'
WARN_NO_LINE_NUMBER = 'No line number found'
def __init__(self, id=0, bottom=0.0, top=0.0):
self.id = id
self.is_even = self.id % 2 == 0
self.bottom = bottom
self.top = top
@classmethod
def create_cls_from_node(cls, node):
"""Create a cls from node.
"""
id = int(node.get('id')) if bool(node.get('id')) else 0
bottom = float(node.get('bottom')) if bool(node.get('bottom')) else 0.0
top = float(node.get('top')) if bool(node.get('top')) else 0.0
return cls(id=id, bottom=bottom, top=top)
@classmethod
def get_semantic_dictionary(cls) -> dict:
""" Creates and returns a semantic dictionary as specified by SemanticClass.
"""
dictionary = {}
class_dict = cls.get_class_dictionary()
properties = { 'id': { 'class': int, 'cardinality': 1,\
'name': 'lineHasNumber', 'label': 'line has number',\
'comment': 'Relating a line to the number it has.'}}
properties.update(cls.create_semantic_property_dictionary('bottom', float, cardinality=1))
properties.update(cls.create_semantic_property_dictionary('top', float, cardinality=1))
properties.update(cls.create_semantic_property_dictionary('is_even', bool, cardinality=1,\
name='isMainLine', label='whether or not line is a main line',\
comment='Indicates whether or not line is a main line. Lines that are not main lines, contain later inserted words.'))
dictionary.update({'class': class_dict})
dictionary.update({'properties': properties})
return dictionary
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