def lineIntersects(self, A, B):
v = B - A
w = self.center - A
t = Vector2.dot(v, w) / Vector2.dot(v, v)
if t > 1:
t = 1
elif t < 0:
t = 0
closest = A + (v * t)
return closest, self.pointIn(closest)
def lineIntersects(self,A,B):
v = B - A
w = self.center - A
t = Vector2.dot(v,w) / Vector2.dot(v,v)
if t > 1:
t = 1
elif t < 0:
t = 0
closest = A + (v*t)
return closest,self.pointIn(closest)
def findDrawingPoints(p0, p1, p2, p3, t0, t1, insertionIndex, pointList):
tMid = (t0 + t1) / 2
lp0 = calculateBezierPoint(p0, p1, p2, p3, t0)
lp1 = calculateBezierPoint(p0, p1, p2, p3, t1)
a = (lp0 - lp1).get_magnitude()
if a <= 1:
return 0
pMid = calculateBezierPoint(p0, p1, p2, p3, tMid)
leftDirection = (lp0 - pMid)
leftDirection.normalize()
rightDirection = (lp1 - pMid)
rightDirection.normalize()
dotP = Vector2.dot(leftDirection, rightDirection)
if dotP > -0.99:
pointsAdded = 0
pointsAdded += findDrawingPoints(p0, p1, p2, p3, t0, tMid,
insertionIndex, pointList)
pointList.insert(len(pointList) - (insertionIndex + pointsAdded), pMid)
pointsAdded += findDrawingPoints(p0, p1, p2, p3, tMid, t1,
insertionIndex + pointsAdded,
pointList)
return pointsAdded
return 0
