def drawPoints(points, title, clr='green'):
draw = Turtle(title, background=True)
if isinstance(points[0], PointGroup):
for pointGroup in points:
draw.connectPoints(pointGroup.points)
else:
for point in points:
draw.addPoint((500*point[0] + 200, 500*point[1] + 200), clr)
draw.dumpImage()
def drawPoints(points, title, clr='green'):
draw = Turtle(title, background=True)
if isinstance(points[0], PointGroup):
for pointGroup in points:
draw.connectPoints(pointGroup.points)
else:
for point in points:
draw.addPoint((500 * point[0] + 200, 500 * point[1] + 200), clr)
draw.dumpImage()
def wrapRandomGift(n, uniform=True):
if uniform:
draw = Turtle("Gift_Wrapping_uniform")
points = list(np.random.uniform(0,500,[n,2]))
else:
draw = Turtle("Gift_Wrapping_normal")
mean, sigma = 200, 70
points = list(np.random.normal(mean,sigma,[n,2]))
for point in points:
draw.addPoint(point)
while len(points) >= 3:
wraping = wrapGift(points)
wr_len = len(wraping)
for i in xrange(wr_len):
draw.addLineNumpy(wraping[i], wraping[(i+1) % wr_len])
draw.dumpImage()
def randomSegments(n, l=150):
points = np.random.uniform(0, 300, [n, 2])
vector = np.array([[l, 0]])
pairs = []
for i in xrange(n):
A = points[i, :]
while True:
B = A + randomVector(l)
if B[0, 0] >= 0 and B[0, 1] >= 0: # is it within first quadrant?
pairs.append(np.row_stack((A, B)))
break
return pairs
if __name__ == '__main__':
draw = Turtle("Intersection")
segments = randomSegments(15)
for i, seg1 in enumerate(segments):
for seg2 in segments[i + 1:]:
intersect = segmentIntersect(seg1, seg2)
if intersect != None:
draw.addPoint(intersect)
for seg in segments:
draw.addLineNumpy(seg[0], seg[1])
draw.dumpImage()
def randomSegments(n, l=150):
points = np.random.uniform(0,300,[n,2])
vector = np.array([[l, 0]])
pairs = []
for i in xrange(n):
A = points[i,:]
while True:
B = A + randomVector(l)
if B[0,0] >= 0 and B[0,1] >= 0: # is it within first quadrant?
pairs.append(np.row_stack((A, B)))
break
return pairs
if __name__ == '__main__':
draw = Turtle("Intersection")
segments = randomSegments(15)
for i, seg1 in enumerate(segments):
for seg2 in segments[i+1:]:
intersect = segmentIntersect(seg1, seg2)
if intersect != None:
draw.addPoint(intersect)
for seg in segments:
draw.addLineNumpy(seg[0], seg[1])
draw.dumpImage()
