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# Data used by fancy nurbs demo.
TRUE = 1
FALSE = 0
RED = 0xff
YELLOW = 0xffff
#
# nurb order
#
ORDER = 4
#
# identity matrix
#
idmat = [1,0,0,0, 0,1,0,0, 0,0,1,0, 0,0,0,1]
#
# s and t knots
#
surfknots = [-1, -1, -1, -1, 1, 1, 1, 1]
#
# list of list of control points
#
def make_ctlpoints():
c = []
#
ci = []
ci.append(-2.5, -3.7, 1.0)
ci.append(-1.5, -3.7, 3.0)
ci.append(1.5, -3.7, -2.5)
ci.append(2.5, -3.7, -0.75)
c.append(ci)
#
ci = []
ci.append(-2.5, -2.0, 3.0)
ci.append(-1.5, -2.0, 4.0)
ci.append(1.5, -2.0, -3.0)
ci.append(2.5, -2.0, 0.0)
c.append(ci)
#
ci = []
ci.append(-2.5, 2.0, 1.0)
ci.append(-1.5, 2.0, 0.0)
ci.append(1.5, 2.0, -1.0)
ci.append(2.5, 2.0, 2.0)
c.append(ci)
#
ci = []
ci.append(-2.5, 2.7, 1.25)
ci.append(-1.5, 2.7, 0.1)
ci.append(1.5, 2.7, -0.6)
ci.append(2.5, 2.7, 0.2)
c.append(ci)
#
return c
ctlpoints = make_ctlpoints ()
#
# trim knots
#
trimknots = [0., 0., 0., 1., 1., 2., 2., 3., 3., 4., 4., 4.]
def make_trimpoints():
c = []
#
c.append(1.0, 0.0, 1.0)
c.append(1.0, 1.0, 1.0)
c.append(0.0, 2.0, 2.0)
c.append(-1.0, 1.0, 1.0)
c.append(-1.0, 0.0, 1.0)
c.append(-1.0, -1.0, 1.0)
c.append(0.0, -2.0, 2.0)
c.append(1.0, -1.0, 1.0)
c.append(1.0, 0.0, 1.0)
#
return c
trimpoints = make_trimpoints()
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