diff options
| -rw-r--r-- | gerber/primitives.py | 136 |
1 files changed, 133 insertions, 3 deletions
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):
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