# -*- coding: utf-8 -*-
# Mathmaker creates automatically maths exercises sheets
# with their answers
# Copyright 2006-2017 Nicolas Hainaux <nh.techn@gmail.com>
# This file is part of Mathmaker.
# Mathmaker 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
# any later version.
# Mathmaker 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 Mathmaker; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import random
from mathmaker.lib import shared
from mathmaker.lib.tools.wording import setup_wording_format_of
from mathmaker.lib.document.content import component
[docs]class sub_object(component.structure):
def __init__(self, build_data, picture='true', **options):
super().setup("minimal", **options)
super().setup("length_units", **options)
super().setup("right_triangle", **options)
# nb1 and nb2 are sides' lengths,
# they may require to be ordered, later on...
super().setup("numbers", nb=build_data,
shuffle_nbs=False, sort_nbs=True, **options)
if self.variant in ['default', 'random']:
variant = shared.trigo_functions_source.next()[0]
else:
variant = self.variant
if variant not in ['cos', 'sin', 'tan']:
raise ValueError('XMLFileFormatError: invalid variant: {v}, '
.format(v=variant) + 'It should be in: '
'[\'cos\', \'sin\', \'tan\']')
# nb2 being the greatest length (the numbers have been ordered at
# setup), it must be used as hypotenuse's length in cosine and sine
# cases
up_val = self.nb1
down_val = self.nb2
if variant == 'tan' and random.choice([True, False]):
up_val, down_val = down_val, up_val
self.right_triangle.setup_for_trigonometry(
angle_nb=random.choice([0, 2]),
trigo_fct=variant,
down_length_val=down_val,
up_length_val=up_val,
length_unit=self.length_unit)
self.wording = ''
setup_wording_format_of(self)
trigo_eq = self.right_triangle.trigonometric_equality(autosetup=True)
self.resolution = trigo_eq.auto_resolution(
dont_display_equations_name=True,
skip_fraction_simplification=True,
decimal_result=self.decimal_result,
unit='\\textdegree')
self.answer_wording = \
_('The triangle {triangle_name} has a right angle in'
' {right_vertex_name}. {newline} Hence: {resolution}')
self.triangle_name = self.right_triangle.name
self.right_vertex_name = self.right_triangle.vertex[1].name
setup_wording_format_of(self, w_prefix='answer_')
[docs] def q(self, **options):
if self.wording:
return shared.machine.write_layout(
(1, 2),
[10, 10],
[self.wording.format(**self.wording_format),
shared.machine.insert_picture(self.right_triangle,
scale=0.8,
top_aligned_in_a_tabular=True)])
else:
return shared.machine.insert_picture(
self.right_triangle,
scale=0.8,
vertical_alignment_in_a_tabular=True)
[docs] def a(self, **options):
return self.answer_wording.format(**self.answer_wording_format)