From cd0ed5aed07279c7ec6991043eeefadeb1620d5c Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Fri, 25 Dec 2015 14:43:44 +0800 Subject: Identify flashes and bounding box without aperture --- gerber/primitives.py | 136 +++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 133 insertions(+), 3 deletions(-) (limited to 'gerber') diff --git a/gerber/primitives.py b/gerber/primitives.py index 3c630f0..d964192 100644 --- a/gerber/primitives.py +++ b/gerber/primitives.py @@ -43,7 +43,15 @@ class Primitive(object): self._to_convert = list() self.id = id self.statement_id = statement_id + + @property + def flashed(self): + '''Is this a flashed primitive''' + + raise NotImplementedError('Is flashed must be ' + 'implemented in subclass') + @property def bounding_box(self): """ Calculate bounding box @@ -53,6 +61,17 @@ class Primitive(object): """ raise NotImplementedError('Bounding box calculation must be ' 'implemented in subclass') + + @property + def bounding_box_no_aperture(self): + """ Calculate bouxing box without considering the aperture + + for most objects, this is the same as the bounding_box, but is different for + Lines and Arcs (which are not flashed) + + Return ((min x, max x), (min y, max y)) + """ + return self.bounding_box def to_inch(self): if self.units == 'metric': @@ -111,6 +130,10 @@ class Line(Primitive): self.end = end self.aperture = aperture self._to_convert = ['start', 'end', 'aperture'] + + @property + def flashed(self): + return False @property def angle(self): @@ -131,6 +154,15 @@ class Line(Primitive): min_y = min(self.start[1], self.end[1]) - height_2 max_y = max(self.start[1], self.end[1]) + height_2 return ((min_x, max_x), (min_y, max_y)) + + @property + def bounding_box_no_aperture(self): + '''Gets the bounding box without the aperture''' + min_x = min(self.start[0], self.end[0]) + max_x = max(self.start[0], self.end[0]) + min_y = min(self.start[1], self.end[1]) + max_y = max(self.start[1], self.end[1]) + return ((min_x, max_x), (min_y, max_y)) @property def vertices(self): @@ -197,6 +229,10 @@ class Arc(Primitive): self.aperture = aperture self._to_convert = ['start', 'end', 'center', 'aperture'] + @property + def flashed(self): + return False + @property def radius(self): dy, dx = map(sub, self.start, self.center) @@ -270,6 +306,47 @@ class Arc(Primitive): min_y = min(y) - radius max_y = max(y) + radius return ((min_x, max_x), (min_y, max_y)) + + @property + def bounding_box_no_aperture(self): + '''Gets the bounding box without considering the aperture''' + two_pi = 2 * math.pi + theta0 = (self.start_angle + two_pi) % two_pi + theta1 = (self.end_angle + two_pi) % two_pi + points = [self.start, self.end] + if self.direction == 'counterclockwise': + # Passes through 0 degrees + if theta0 > theta1: + points.append((self.center[0] + self.radius, self.center[1])) + # Passes through 90 degrees + if theta0 <= math.pi / 2. and (theta1 >= math.pi / 2. or theta1 < theta0): + points.append((self.center[0], self.center[1] + self.radius)) + # Passes through 180 degrees + if theta0 <= math.pi and (theta1 >= math.pi or theta1 < theta0): + points.append((self.center[0] - self.radius, self.center[1])) + # Passes through 270 degrees + if theta0 <= math.pi * 1.5 and (theta1 >= math.pi * 1.5 or theta1 < theta0): + points.append((self.center[0], self.center[1] - self.radius )) + else: + # Passes through 0 degrees + if theta1 > theta0: + points.append((self.center[0] + self.radius, self.center[1])) + # Passes through 90 degrees + if theta1 <= math.pi / 2. and (theta0 >= math.pi / 2. or theta0 < theta1): + points.append((self.center[0], self.center[1] + self.radius)) + # Passes through 180 degrees + if theta1 <= math.pi and (theta0 >= math.pi or theta0 < theta1): + points.append((self.center[0] - self.radius, self.center[1])) + # Passes through 270 degrees + if theta1 <= math.pi * 1.5 and (theta0 >= math.pi * 1.5 or theta0 < theta1): + points.append((self.center[0], self.center[1] - self.radius )) + x, y = zip(*points) + + min_x = min(x) + max_x = max(x) + min_y = min(y) + max_y = max(y) + return ((min_x, max_x), (min_y, max_y)) def offset(self, x_offset=0, y_offset=0): self.start = tuple(map(add, self.start, (x_offset, y_offset))) @@ -287,6 +364,10 @@ class Circle(Primitive): self.diameter = diameter self._to_convert = ['position', 'diameter'] + @property + def flashed(self): + return True + @property def radius(self): return self.diameter / 2. @@ -314,6 +395,9 @@ class Ellipse(Primitive): self.height = height self._to_convert = ['position', 'width', 'height'] + @property + def flashed(self): + return True @property def bounding_box(self): @@ -350,7 +434,10 @@ class Rectangle(Primitive): self.height = height self._to_convert = ['position', 'width', 'height'] - + @property + def flashed(self): + return True + @property def lower_left(self): return (self.position[0] - (self._abs_width / 2.), @@ -392,6 +479,10 @@ class Diamond(Primitive): self.width = width self.height = height self._to_convert = ['position', 'width', 'height'] + + @property + def flashed(self): + return True @property def lower_left(self): @@ -436,6 +527,10 @@ class ChamferRectangle(Primitive): self.chamfer = chamfer self.corners = corners self._to_convert = ['position', 'width', 'height', 'chamfer'] + + @property + def flashed(self): + return True @property def lower_left(self): @@ -479,6 +574,10 @@ class RoundRectangle(Primitive): self.radius = radius self.corners = corners self._to_convert = ['position', 'width', 'height', 'radius'] + + @property + def flashed(self): + return True @property def lower_left(self): @@ -520,6 +619,10 @@ class Obround(Primitive): self.width = width self.height = height self._to_convert = ['position', 'width', 'height'] + + @property + def flashed(self): + return True @property def lower_left(self): @@ -583,6 +686,10 @@ class Polygon(Primitive): self.sides = sides self.radius = radius self._to_convert = ['position', 'radius'] + + @property + def flashed(self): + return True @property def bounding_box(self): @@ -603,6 +710,10 @@ class Region(Primitive): super(Region, self).__init__(**kwargs) self.primitives = primitives self._to_convert = ['primitives'] + + @property + def flashed(self): + return False @property def bounding_box(self): @@ -629,6 +740,10 @@ class RoundButterfly(Primitive): self.position = position self.diameter = diameter self._to_convert = ['position', 'diameter'] + + @property + def flashed(self): + return True @property def radius(self): @@ -655,7 +770,10 @@ class SquareButterfly(Primitive): self.position = position self.side = side self._to_convert = ['position', 'side'] - + + @property + def flashed(self): + return True @property def bounding_box(self): @@ -691,6 +809,10 @@ class Donut(Primitive): self.width = 0.5 * math.sqrt(3.) * outer_diameter self.height = outer_diameter self._to_convert = ['position', 'width', 'height', 'inner_diameter', 'outer_diameter'] + + @property + def flashed(self): + return True @property def lower_left(self): @@ -726,7 +848,11 @@ class SquareRoundDonut(Primitive): self.inner_diameter = inner_diameter self.outer_diameter = outer_diameter self._to_convert = ['position', 'inner_diameter', 'outer_diameter'] - + + @property + def flashed(self): + return True + @property def lower_left(self): return tuple([c - self.outer_diameter / 2. for c in self.position]) @@ -757,6 +883,10 @@ class Drill(Primitive): self.diameter = diameter self.hit = hit self._to_convert = ['position', 'diameter'] + + @property + def flashed(self): + return False @property def radius(self): -- cgit