# -*- 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 will be the length to use; nb2 the acute angle
super().setup("numbers", nb=build_data,
shuffle_nbs=False, **options)
valid_variants = ['cos_up', 'cos_down', 'sin_up', 'sin_down',
'tan_up', 'tan_down']
if self.variant == 'default':
variant = ['random', 'random']
else:
if self.variant.count('_') != 1:
raise ValueError('XMLFileFormatError: the variant for '
'trigonometry_calculate_length '
'shoud contain one _')
if self.variant in ['cos_opp', 'sin_adj', 'tan_hyp']:
raise ValueError('XMLFileFormatError: invalid variant: {v}, '
.format(v=variant) + 'It should be in: '
+ str(valid_variants))
variant = self.variant.split(sep='_')
if variant[0] == 'random':
if variant[1] == 'random':
variant[0] = shared.trigo_functions_source.next()[0]
variant[1] = random.choice(['up', 'down'])
elif variant[1] == 'adj':
variant[0] = random.choice(['cos', 'tan'])
elif variant[1] == 'opp':
variant[0] = random.choice(['sin', 'tan'])
elif variant[1] == 'hyp':
variant[0] = random.choice(['sin', 'cos'])
elif variant[1] in ['up', 'down']:
variant[0] = shared.trigo_functions_source.next()[0]
elif variant[0] in ['sin', 'cos', 'tan'] and variant[1] == 'random':
variant[1] = random.choice(['up', 'down'])
if variant[1] in ['adj', 'hyp', 'opp']:
if variant[0] == 'cos':
variant[1] = 'up' if variant[1] == 'adj' else 'down'
elif variant[0] in ['sin', 'tan']:
variant[1] = 'up' if variant[1] == 'opp' else 'down'
if '_'.join(variant) not in valid_variants:
raise ValueError('The provided variant, {v}, is not valid.'
.format(v='_'.join(variant)))
# Now it's possible to setup the right triangle
if variant[1] == 'up':
self.right_triangle.setup_for_trigonometry(
angle_nb=random.choice([0, 2]),
trigo_fct=variant[0],
angle_val=self.nb2,
up_length_val=self.nb1,
length_unit=self.length_unit)
else:
self.right_triangle.setup_for_trigonometry(
angle_nb=random.choice([0, 2]),
trigo_fct=variant[0],
angle_val=self.nb2,
down_length_val=self.nb1,
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=self.length_unit)
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)