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fix multiple bugs in arc and ellipse

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This commit is contained in:
Jan Petykiewicz 2017-04-19 18:54:58 -07:00
parent 113671e591
commit ff76626e21
2 changed files with 39 additions and 32 deletions
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57
masque/shapes/arc.py
View File

@ -38,7 +38,7 @@ class Arc(Shape):
:return: [rx, ry]
"""
return self.radii
return self._radii
@radii.setter
def radii(self, val: vector2):
@ -47,27 +47,27 @@ class Arc(Shape):
raise PatternError('Radii must have length 2')
if not val.min() >= 0:
raise PatternError('Radii must be non-negative')
self.radii = val
self._radii = val
@property
def radius_x(self) -> float:
return self.radii[0]
return self._radii[0]
@radius_x.setter
def radius_x(self, val: float):
if not val >= 0:
raise PatternError('Radius must be non-negative')
self.radii[0] = val
self._radii[0] = val
@property
def radius_y(self) -> float:
return self.radii[1]
return self._radii[1]
@radius_y.setter
def radius_y(self, val: float):
if not val >= 0:
raise PatternError('Radius must be non-negative')
self.radii[1] = val
self._radii[1] = val
# arc start/stop angle properties
@property
@ -85,11 +85,7 @@ class Arc(Shape):
val = numpy.array(val, dtype=float).flatten()
if not val.size == 2:
raise PatternError('Angles must have length 2')
angles = val % (2 * pi)
if angles[0] > pi:
self.rotation += pi
angles -= pi
self._angles = angles
self._angles = val
@property
def start_angle(self) -> float:
@ -97,7 +93,7 @@ class Arc(Shape):
@start_angle.setter
def start_angle(self, val: float):
self.angles[0] = val % (2 * pi)
self.angles = (val, self.angles[1])
@property
def stop_angle(self) -> float:
@ -105,7 +101,7 @@ class Arc(Shape):
@stop_angle.setter
def stop_angle(self, val: float):
self.angles[1] = val % (2 * pi)
self.angles = (self.angles[0], val)
# Rotation property
@property
@ -144,6 +140,7 @@ class Arc(Shape):
def __init__(self,
radii: vector2,
angles: vector2,
width: float,
rotation: float=0,
poly_num_points: int=DEFAULT_POLY_NUM_POINTS,
poly_max_arclen: float=None,
@ -155,6 +152,7 @@ class Arc(Shape):
self.dose = dose
self.radii = radii
self.angles = angles
self.width = width
self.rotation = rotation
self.poly_num_points = poly_num_points
self.poly_max_arclen = poly_max_arclen
@ -169,30 +167,30 @@ class Arc(Shape):
raise PatternError('Max number of points and arclength left unspecified' +
' (default was also overridden)')
rxy = self.radii
ang = self.angles
r0, r1 = self.radii
a0, a1 = self.angles
# Approximate perimeter
# Ramanujan, S., "Modular Equations and Approximations to ,"
# Quart. J. Pure. Appl. Math., vol. 45 (1913-1914), pp. 350-372
h = ((rxy[1] - rxy[0]) / rxy.sum()) ** 2
ellipse_perimeter = pi * rxy.sum() * (1 + 3 * h / (10 + math.sqrt(4 - 3 * h)))
perimeter = abs(ang[0] - ang[1]) / (2 * pi) * ellipse_perimeter
h = ((r1 - r0) / (r1 + r0)) ** 2
ellipse_perimeter = pi * (r1 + r0) * (1 + 3 * h / (10 + math.sqrt(4 - 3 * h)))
perimeter = abs(a0 - a1) / (2 * pi) * ellipse_perimeter # TODO: make this more accurate
n = []
if poly_num_points is not None:
n += [poly_num_points]
if poly_max_arclen is not None:
n += [perimeter / poly_max_arclen]
thetas = numpy.linspace(2 * pi, 0, max(n), endpoint=False)
thetas = numpy.linspace(a1, a0, max(n), endpoint=True)
sin_th, cos_th = (numpy.sin(thetas), numpy.cos(thetas))
wh = self.width / 2.0
xs1 = (rxy[0] + wh) * cos_th - (rxy[1] + wh) * sin_th
ys1 = (rxy[0] + wh) * cos_th - (rxy[1] + wh) * sin_th
xs2 = (rxy[0] - wh) * cos_th - (rxy[1] - wh) * sin_th
ys2 = (rxy[0] - wh) * cos_th - (rxy[1] - wh) * sin_th
xs1 = (r0 + wh) * cos_th
ys1 = (r1 + wh) * sin_th
xs2 = (r0 - wh) * cos_th
ys2 = (r1 - wh) * sin_th
xs = numpy.hstack((xs1, xs2[::-1]))
ys = numpy.hstack((ys1, ys2[::-1]))
@ -266,6 +264,15 @@ class Arc(Shape):
scale = self.radius_y
rotation = self.rotation + pi / 2
angles = self.angles - pi / 2
return (type(self), radii, angles, self.layer), \
if angles[0] >= pi:
angles -= pi
rotation += pi
angles %= 2 * pi
rotation %= 2 * pi
width = self.width
return (type(self), radii, angles, width, self.layer), \
(self.offset, scale/norm_value, rotation, self.dose), \
lambda: Arc(radii=radii*norm_value, angles=angles, layer=self.layer)
lambda: Arc(radii=radii*norm_value, angles=angles, width=width, layer=self.layer)

14
masque/shapes/ellipse.py
View File

@ -32,7 +32,7 @@ class Ellipse(Shape):
:return: [rx, ry]
"""
return self.radii
return self._radii
@radii.setter
def radii(self, val: vector2):
@ -41,7 +41,7 @@ class Ellipse(Shape):
raise PatternError('Radii must have length 2')
if not val.min() >= 0:
raise PatternError('Radii must be non-negative')
self.radii = val
self._radii = val
@property
def radius_x(self) -> float:
@ -109,13 +109,13 @@ class Ellipse(Shape):
raise PatternError('Number of points and arclength left unspecified'
' (default was also overridden)')
rxy = self.radii
r0, r1 = self.radii
# Approximate perimeter
# Ramanujan, S., "Modular Equations and Approximations to ,"
# Quart. J. Pure. Appl. Math., vol. 45 (1913-1914), pp. 350-372
h = ((rxy[1] - rxy[0]) / rxy.sum()) ** 2
perimeter = pi * rxy.sum() * (1 + 3 * h / (10 + math.sqrt(4 - 3 * h)))
h = ((r1 - r0) / (r1 + r0)) ** 2
perimeter = pi * (r1 + r0) * (1 + 3 * h / (10 + math.sqrt(4 - 3 * h)))
n = []
if poly_num_points is not None:
@ -125,8 +125,8 @@ class Ellipse(Shape):
thetas = numpy.linspace(2 * pi, 0, max(n), endpoint=False)
sin_th, cos_th = (numpy.sin(thetas), numpy.cos(thetas))
xs = rxy[0] * cos_th - rxy[1] * sin_th
ys = rxy[0] * sin_th - rxy[1] * cos_th
xs = r0 * cos_th
ys = r1 * sin_th
xys = numpy.vstack((xs, ys)).T
poly = Polygon(xys, dose=self.dose, layer=self.layer, offset=self.offset)