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# coding: UTF-8
# Copyright 2009 Thomas Jourdan
#
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import math
import model_random
import model_locus
import model_allele
import model_constraintpool
from gettext import gettext as _
ORDER_CONSTRAINT = 'orderconstaint'
RADIUS_CONSTRAINT = 'radiusconstraint'
class FilledCyclicStamp(model_allele.Allele):
"""FilledCyclicStamp:.
inv: self.radius >= 0.0
"""
cdef = [{'bind' : ORDER_CONSTRAINT,
'name' : 'Natural logarithm of order p used in Minkowski distance',
'domain': model_constraintpool.FLOAT_RANGE,
'min' : 1.0, 'max': 4.0},
{'bind' : RADIUS_CONSTRAINT,
'name' : 'Radius of the filled cyclic polygon or circle',
'domain': model_constraintpool.FLOAT_RANGE,
'min' : 0.01, 'max': 0.25},
]
def __init__(self, trunk, dummy):
"""Constructor for a flip merger."""
super(FilledCyclicStamp, self).__init__(trunk)
self.order = 1.0 # special case for circle
self.radius = 0.1
def __eq__(self, other):
"""Equality based on radius."""
equal = isinstance(other, FilledCyclicStamp) \
and self.order == other.order \
and self.radius == other.radius
return equal
def randomize(self):
"""Randomize the layers components."""
cpool = model_constraintpool.ConstraintPool.get_pool()
order_constraint = cpool.get(self, ORDER_CONSTRAINT)
self.order = model_random.uniform_constrained(order_constraint)
radius_constraint = cpool.get(self, RADIUS_CONSTRAINT)
self.radius = model_random.uniform_constrained(radius_constraint)
def mutate(self):
"""Make small random changes to the layers components."""
cpool = model_constraintpool.ConstraintPool.get_pool()
order_constraint = cpool.get(self, ORDER_CONSTRAINT)
self.order = model_random.jitter_constrained(self.order, order_constraint)
radius_constraint = cpool.get(self, RADIUS_CONSTRAINT)
self.radius = model_random.jitter_constrained(self.radius, radius_constraint)
def swap_places(self):
"""Nothing to do."""
def crossingover(self, other):
"""
pre: isinstance(other, FilledCyclicStamp)
pre: isinstance(self, FilledCyclicStamp)
# check for distinct references, needs to copy content, not references
post: __return__ is not self
post: __return__ is not other
post: model_locus.unique_check(__return__, self, other) == ''
"""
new_one = FilledCyclicStamp(self.get_trunk(), -1)
cross_sequence = model_random.crossing_sequence(2)
new_one.order = self.order if cross_sequence[0] else other.order
new_one.radius = self.radius if cross_sequence[1] else other.radius
return new_one
def set_stamp_extent(self, width, height):
"""Set extent of stamp. This stamps will ignore these parameters."""
pass
def render(self, ctx, point, state):
"""
pre: ctx is not None
pre: len(point) == 2
"""
edges = int(math.floor(self.order * self.order))
if edges < 3:
ctx.arc(point[0], point[1], self.radius, 0.0, 2.0*math.pi)
ctx.fill()
else:
delta = 2.0*math.pi / edges
start = -(delta / 2.0 + 0.5*math.pi)
px = self.radius * math.cos(start)
py = self.radius * math.sin(start)
ctx.move_to(point[0] + px, point[1] + py)
for step in range(1, edges):
px = self.radius * math.cos(step * (delta) + start)
py = self.radius * math.sin(step * (delta) + start)
ctx.line_to(point[0] + px, point[1] + py)
ctx.close_path()
ctx.fill()
def explain(self):
"""
post: len(__return__) == 3
"""
return u'Square root of number of edges: ' + str(self.order), \
None, \
None
def copy(self):
"""A copy constructor.
post: isinstance(__return__, FilledCyclicStamp)
# check for distinct references, needs to copy content, not references
post: __return__ is not self
"""
new_one = FilledCyclicStamp(self.get_trunk(), -1)
new_one.order = self.order
new_one.radius = self.radius
return new_one
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