def run(self):
assert drawing.dist_point_to_point(Point(0,0),Point(10,0)) == 10
assert drawing.dist_point_to_point(Point(0,0),Point(3,4)) == 5
curves = []
curves.append(drawing.BezierCubic(Point(10,10),Point(10,10),Point(90,10),Point(90,10)))
curves.append(drawing.BezierCubic(Point(10,10),Point(10,10),Point(90,20),Point(90,20)))
curves.append(drawing.BezierCubic(Point(10,10),Point(10,40),Point(90,60),Point(90,20)))
for curve in curves:
drawing.bezier_cubic(self,curve,5)
debug.pause()
self.clear()
for curve in curves:
drawing.bezier_cubic(self,curve,2)
debug.pause()
self.clear()
for curve in curves:
drawing.bezier_cubic(self,curve,1)
def triangle_clipper(wb,box,triangle,division=0):
if division > 3:
return
print "triangle_clipper({0},{1},{2})".format(box,triangle,division)
triangle.draw(wb,colour="green")
debug.pause()
# Test whether triangle lies wholy inside, outside or staddles.
p0 = triangle.p0
p1 = triangle.p1
p2 = triangle.p2
(a0,b0,c0,d0) = evaluate_point_against_box_inequalities(box,p0)
(a1,b1,c1,d1) = evaluate_point_against_box_inequalities(box,p1)
(a2,b2,c2,d2) = evaluate_point_against_box_inequalities(box,p2)
if a0 | b0 | c0 | d0 | a1 | b1 | c1 | d1 | a2 | b2 | c2 | d2 == False:
# Wholy inside box.
fill(wb,triangle.as_polygon(),colour="red")
elif ((a0&a1&a2) | (b0&b1&b2) | (c0&c1&c2) | (d0&d1&d2)) == False:
# There is no boundary for which all the points are on the side
# that it outside of the box.
# Need to clip.
if a0:
if a1 == False:
(t1,t2) = subdivide_triangle_0_1(triangle)
else:
(t1,t2) = subdivide_triangle_2_0(triangle)
elif a1 | a2:
(t1,t2) = subdivide_triangle_1_2(triangle)
elif b0:
if b1 == False:
(t1,t2) = subdivide_triangle_0_1(triangle)
else:
(t1,t2) = subdivide_triangle_2_0(triangle)
elif b1 | b2:
(t1,t2) = subdivide_triangle_1_2(triangle)
elif c0:
if c1 == False:
(t1,t2) = subdivide_triangle_0_1(triangle)
else:
(t1,t2) = subdivide_triangle_2_0(triangle)
elif c1 | c2:
(t1,t2) = subdivide_triangle_1_2(triangle)
elif d0:
if d1 == False:
(t1,t2) = subdivide_triangle_0_1(triangle)
else:
(t1,t2) = subdivide_triangle_2_0(triangle)
elif d1 | d2:
(t1,t2) = subdivide_triangle_1_2(triangle)
triangle_clipper(wb,box,t1,division=division+1)
triangle_clipper(wb,box,t2,division=division+1)
def run(self):
colours = itertools.cycle(["red","blue","green"])
ps = [
drawing_filling.Polygon([Point(5,5),Point(40,5),Point(20,50)]),
drawing_filling.Polygon([Point(50,20),Point(70,40),Point(10,50)]),
drawing_filling.Polygon([Point(10,10),Point(20,10),Point(60,40),Point(40,70)]),
drawing_filling.Polygon([Point(30,30),Point(50,70),Point(20,90),Point(10,50)]),
drawing_filling.Polygon([Point(50,10),Point(70,10),Point(60,30),Point(40,70)])
]
for p in ps:
drawing_filling.fill(self,p,colour=colours.next())
debug.pause()
def run(self):
colours = itertools.cycle(["red","blue","green"])
ps = [
supervision_2.Polygon([Point(5,5),Point(40,5),Point(20,50)]),
supervision_2.Polygon([Point(50,20),Point(70,40),Point(10,50)]),
supervision_2.Polygon([Point(10,10),Point(20,10),Point(60,40),Point(40,70)]),
supervision_2.Polygon([Point(30,30),Point(50,70),Point(20,90),Point(10,50)]),
supervision_2.Polygon([Point(50,10),Point(70,10),Point(60,30),Point(40,70)])
]
for p in ps:
p.draw(self,colour=colours.next())
debug.pause()
supervision_2.fill(self,p,colour=colours.next())
debug.pause()
def run(self):
colours = itertools.cycle(["red","blue","green","purple","orange","yellow"])
boundingPolygon = supervision_2.Polygon([Point(20,20),Point(70,30),Point(80,80),Point(30,70)])
boundingPolygon.draw(self,colour=colours.next())
ps = [
supervision_2.Polygon([Point(10,10),Point(50,90),Point(90,10)]),
supervision_2.Polygon([Point(10,20),Point(50,50),Point(90,10)]),
supervision_2.Polygon([Point(11,11),Point(91,11),Point(51,91)]), # interesting, order of vertices does not seem to matter?
supervision_2.Polygon([Point(5,40),Point(95,30),Point(96,60),Point(60,70)]),
supervision_2.Polygon([Point(15,15),Point(50,15),Point(50,50),Point(30,30),Point(20,50)])
]
for p in ps:
colour=colours.next()
p.draw(self,colour)
debug.pause()
supervision_2.sutherland_hodgman_clipper(self,boundingPolygon,p,colour)
debug.pause()