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#! /usr/bin/env python
# -*- coding: utf-8 -*-
# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import math
from operator import sub
class Primitive(object):
def __init__(self, level_polarity='dark'):
self.level_polarity = level_polarity
def bounding_box(self):
""" Calculate bounding box
will be helpful for sweep & prune during DRC clearance checks.
Return ((min x, max x), (min y, max y))
"""
pass
class Line(Primitive):
"""
"""
def __init__(self, start, end, width, level_polarity='dark'):
super(Line, self).__init__(level_polarity)
self.start = start
self.end = end
self.width = width
@property
def angle(self):
delta_x, delta_y = tuple(map(sub, end, start))
angle = degrees(math.tan(delta_y/delta_x))
return angle
@property
def bounding_box(self):
width_2 = self.width / 2.
min_x = min(self.start[0], self.end[0]) - width_2
max_x = max(self.start[0], self.end[0]) + width_2
min_y = min(self.start[1], self.end[1]) - width_2
max_y = max(self.start[1], self.end[1]) + width_2
return ((min_x, max_x), (min_y, max_y))
class Arc(Primitive):
"""
"""
def __init__(self, start, end, center, direction, width, level_polarity='dark'):
super(Arc, self).__init__(level_polarity)
self.start = start
self.end = end
self.center = center
self.direction = direction
self.width = width
@property
def start_angle(self):
dy, dx = map(sub, self.start, self.center)
return math.atan2(dy, dx)
@property
def end_angle(self):
dy, dx = map(sub, self.end, self.center)
return math.atan2(dy, dx)
@property
def bounding_box(self):
pass
class Circle(Primitive):
"""
"""
def __init__(self, position, diameter, level_polarity='dark'):
super(Circle, self).__init__(level_polarity)
self.position = position
self.diameter = diameter
@property
def radius(self):
return self.diameter / 2.
@property
def bounding_box(self):
min_x = self.position[0] - self.radius
max_x = self.position[0] + self.radius
min_y = self.position[1] - self.radius
max_y = self.position[1] + self.radius
return ((min_x, max_x), (min_y, max_y))
@property
def stroke_width(self):
return self.diameter
class Rectangle(Primitive):
"""
"""
def __init__(self, position, width, height, level_polarity='dark'):
super(Rectangle, self).__init__(level_polarity)
self.position = position
self.width = width
self.height = height
@property
def lower_left(self):
return (self.position[0] - (self.width / 2.),
self.position[1] - (self.height / 2.))
@property
def upper_right(self):
return (self.position[0] + (self.width / 2.),
self.position[1] + (self.height / 2.))
@property
def bounding_box(self):
min_x = self.lower_left[0]
max_x = self.upper_right[0]
min_y = self.lower_left[1]
max_y = self.upper_right[1]
return ((min_x, max_x), (min_y, max_y))
@property
def stroke_width(self):
return max((self.width, self.height))
class Obround(Primitive):
"""
"""
def __init__(self, position, width, height, level_polarity='dark'):
super(Obround, self).__init__(level_polarity)
self.position = position
self.width = width
self.height = height
@property
def orientation(self):
return 'vertical' if self.height > self.width else 'horizontal'
@property
def lower_left(self):
return (self.position[0] - (self.width / 2.),
self.position[1] - (self.height / 2.))
@property
def upper_right(self):
return (self.position[0] + (self.width / 2.),
self.position[1] + (self.height / 2.))
@property
def bounding_box(self):
min_x = self.lower_left[0]
max_x = self.upper_right[0]
min_y = self.lower_left[1]
max_y = self.upper_right[1]
return ((min_x, max_x), (min_y, max_y))
class Polygon(Primitive):
"""
"""
def __init__(self, position, sides, radius, level_polarity='dark'):
super(Polygon, self).__init__(level_polarity)
self.position = position
self.sides = sides
self.radius = radius
@property
def bounding_box(self):
min_x = self.position[0] - self.radius
max_x = self.position[0] + self.radius
min_y = self.position[1] - self.radius
max_y = self.position[1] + self.radius
return ((min_x, max_x), (min_y, max_y))
class Region(Primitive):
"""
"""
def __init__(self, points, level_polarity='dark'):
super(Region, self).__init__(level_polarity)
self.points = points
@property
def bounding_box(self):
x_list, y_list = zip(*self.points)
min_x = min(x_list)
max_x = max(x_list)
min_y = min(y_list)
max_y = max(y_list)
return ((min_x, max_x), (min_y, max_y))
class Drill(Primitive):
"""
"""
def __init__(self, position, diameter):
super(Drill, self).__init__('dark')
self.position = position
self.diameter = diameter
@property
def radius(self):
return self.diameter / 2.
@property
def bounding_box(self):
min_x = self.position[0] - self.radius
max_x = self.position[0] + self.radius
min_y = self.position[1] - self.radius
max_y = self.position[1] + self.radius
return ((min_x, max_x), (min_y, max_y))
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