def bulge2arc(self, Ps, Pe, bulge):
"""
bulge2arc()
"""
c = (1 / bulge - bulge) / 2
# Berechnung des Mittelpunkts (Formel von Mickes!)
# Calculation of the center (Micke's formula)
O = Point((Ps.x + Pe.x - (Pe.y - Ps.y) * c) / 2,
(Ps.y + Pe.y + (Pe.x - Ps.x) * c) / 2)
# Radius = Distance between the centre and Ps
r = O.distance(Ps)
# Kontrolle ob beide gleich sind (passt ...)
# Check if they are equal (fits ...)
# r=O.distance(Pe)
# Unterscheidung f�r den �ffnungswinkel.
# Distinction for the opening angle. ???
if bulge > 0:
return ArcGeo(Ps=Ps, Pe=Pe, O=O, r=r)
else:
arc = ArcGeo(Ps=Pe, Pe=Ps, O=O, r=r)
arc.reverse()
return arc
def contains_point(self, point):
"""
Method to determine the minimal distance from the point to the shape
@param point: a QPointF
@return: minimal distance
"""
min_distance = float(0x7fffffff)
ref_point = Point(point.x(), point.y())
t = 0.0
while t < 1.0:
per_point = self.path.pointAtPercent(t)
spline_point = Point(per_point.x(), per_point.y())
distance = ref_point.distance(spline_point)
if distance < min_distance:
min_distance = distance
t += 0.01
return min_distance
def bulge2arc(self, Ps, Pe, bulge):
"""
bulge2arc()
"""
c = (1 / bulge - bulge) / 2
# Calculate the centre point (Micke's formula!)
O = Point((Ps.x + Pe.x - (Pe.y - Ps.y) * c) / 2,
(Ps.y + Pe.y + (Pe.x - Ps.x) * c) / 2)
# Radius = Distance between the centre and Ps
r = O.distance(Ps)
# Check if they are equal (fits ...)
# r=O.distance(Pe)
# Unterscheidung f�r den �ffnungswinkel.
# Distinction for the opening angle. ???
if bulge > 0:
return ArcGeo(Ps=Ps, Pe=Pe, O=O, r=r)
else:
arc = ArcGeo(Ps=Pe, Pe=Ps, O=O, r=r)
arc.reverse()
return arc