def testInit(self):
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), scalar, "")
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), scalar, 1j)
self.failUnlessEqual(str(scalar()), "unnamed_scalar")
self.failUnlessEqual(str(scalar(name="s")), "s")
self.failUnlessEqual(str(scalar(1)), "unnamed_scalar{=1.0}")
self.failUnlessEqual(str(scalar(-1, name="s")), "s{=-1.0}")
def testScalars(self):
solver = Solver()
a = scalar()
solver.eq(2 + a, 3)
self.failUnlessAlmostEqual(float(a), 1)
self.failUnlessRaises(RuntimeError, solver.eq, 2 + a, 3) # the solver is broken after that
solver = Solver()
a = scalar()
b = scalar()
solver.eq(2*a, b)
solver.eq(2 + a + b, 5)
self.failUnlessAlmostEqual(float(a), 1)
self.failUnlessAlmostEqual(float(b), 2)
a = scalar()
b = scalar()
solver.eq(a, b)
self.failUnlessRaises(Exception, solver.eq, a, b)
def testMath(self):
self.failUnlessEqual(str(-vector(2, "a")), "unnamed_vector{=(unnamed_scalar{=-1.0} * a[0], unnamed_scalar{=-1.0} * a[1])}")
self.failUnlessEqual(str(vector(2, "a") + vector(2, "b")), "unnamed_vector{=(a[0] + b[0], a[1] + b[1])}")
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, 1, vector(2))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, vector(2), 1)
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, scalar(), vector(2))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, vector(2), scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, scalar() + scalar(), vector(2))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, vector(2), scalar() + scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, vector(2), vector(3))
self.failUnlessEqual(str(vector(2, "a") - vector(2, "b")), "unnamed_vector{=(unnamed_scalar{=-1.0} * b[0] + a[0], unnamed_scalar{=-1.0} * b[1] + a[1])}")
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, 1, vector(2))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, vector(2), 1)
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, scalar(), vector(2))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, vector(2), scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, scalar() + scalar(), vector(2))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, vector(2), scalar() + scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, vector(2), vector(3))
self.failUnlessEqual(str(2 * vector(2, "a")), "unnamed_vector{=(a[0] * unnamed_scalar{=2.0}, a[1] * unnamed_scalar{=2.0})}")
self.failUnlessEqual(str(vector(2, "a") * 2), "unnamed_vector{=(a[0] * unnamed_scalar{=2.0}, a[1] * unnamed_scalar{=2.0})}")
self.failUnlessEqual(str(scalar(name="s") * vector(2, "a")), "unnamed_vector{=(a[0] * s, a[1] * s)}")
self.failUnlessEqual(str(scalar(name="s") * (vector(2, "a") + vector(2, "b"))), "unnamed_vector{=(a[0] * s + b[0] * s, a[1] * s + b[1] * s)}")
self.failUnlessEqual(str((scalar(name="s") + scalar(name="t")) * vector(2, "a")), "unnamed_vector{=(a[0] * s + a[0] * t, a[1] * s + a[1] * t)}")
self.failUnlessEqual(str((scalar(name="s") + scalar(name="t")) * (vector(2, "a") + vector(2, "b"))), "unnamed_vector{=(a[0] * s + b[0] * s + a[0] * t + b[0] * t, a[1] * s + b[1] * s + a[1] * t + b[1] * t)}")
self.failUnlessEqual(str(vector(2, "a") * scalar(name="s")), "unnamed_vector{=(a[0] * s, a[1] * s)}")
self.failUnlessEqual(str(vector(2, "a") * vector(2, "b")), "a[0] * b[0] + a[1] * b[1]")
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__mul__, vector(2, "a"), vector(3))
self.failUnlessEqual(str(vector(2, "a") / 2.0), "unnamed_vector{=(unnamed_scalar{=0.5} * a[0], unnamed_scalar{=0.5} * a[1])}")
self.failUnlessEqual(str(vector(2, "a") / 2), "unnamed_vector{=(unnamed_scalar{=0.0} * a[0], unnamed_scalar{=0.0} * a[1])}") # integer logic!
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, scalar(), vector(1))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, scalar() + scalar(), vector(1))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, vector(1), scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, vector(1), scalar() + scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, vector(1), vector(1))
def testMath(self):
self.failUnlessEqual(str(-trafo([2, 3], "A")), str(trafo((-matrix([2, 3], "A_matrix"), -vector(2, "A_vector")))))
self.failUnlessEqual(str(trafo([2, 3], "A") + trafo([2, 3], "B")), str(trafo((matrix([2, 3], "A_matrix") + matrix([2, 3], "B_matrix"), vector(2, "A_vector") + vector(2, "B_vector")))))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, 1, trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, trafo([2, 3]), 1)
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, scalar(), trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, trafo([2, 3]), scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, scalar() + scalar(), trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, trafo([2, 3]), scalar() + scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, vector(2), trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, trafo([2, 3]), vector(2))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, vector(3), trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, trafo([2, 3]), vector(3))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, matrix([2, 3]), trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, trafo([2, 3]), matrix([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, trafo([2, 3]), trafo([2, 4]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, trafo([2, 3]), trafo([3, 3]))
self.failUnlessEqual(str(trafo([2, 3], "A") - trafo([2, 3], "B")), str(trafo((matrix([2, 3], "A_matrix") - matrix([2, 3], "B_matrix"), vector(2, "A_vector") - vector(2, "B_vector")))))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, 1, trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, trafo([2, 3]), 1)
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, scalar(), trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, trafo([2, 3]), scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, scalar() + scalar(), trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, trafo([2, 3]), scalar() + scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, vector(2), trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, trafo([2, 3]), vector(2))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, vector(3), trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, trafo([2, 3]), vector(3))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, matrix([2, 3]), trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, trafo([2, 3]), matrix([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, trafo([2, 3]), trafo([2, 4]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, trafo([2, 3]), trafo([3, 3]))
self.failUnlessEqual(str(trafo([2, 3], "A") * trafo([3, 4], "B")), str(trafo((matrix([2, 3], "A_matrix") * matrix([3, 4], "B_matrix"), vector(2, "A_vector") + matrix([2, 3], "A_matrix") * vector(3, "B_vector")))))
self.failUnlessEqual(str(2 * trafo([2, 3], "A")), str(trafo((2 * matrix([2, 3], "A_matrix"), 2 * vector(2, "A_vector")))))
self.failUnlessEqual(str(trafo([2, 3], "A") * 2), str(trafo((matrix([2, 3], "A_matrix") * 2, vector(2, "A_vector") * 2))))
self.failUnlessEqual(str(scalar() * trafo([2, 3], "A")), str(trafo((scalar() * matrix([2, 3], "A_matrix"), scalar() * vector(2, "A_vector")))))
self.failUnlessEqual(str(trafo([2, 3], "A") * scalar()), str(trafo((matrix([2, 3], "A_matrix") * scalar(), vector(2, "A_vector") * scalar()))))
self.failUnlessEqual(str((scalar() + scalar()) * trafo([2, 3], "A")), str(trafo(((scalar() + scalar()) * matrix([2, 3], "A_matrix"), (scalar() + scalar()) * vector(2, "A_vector")))))
self.failUnlessEqual(str(trafo([2, 3], "A") * (scalar() + scalar())), str(trafo((matrix([2, 3], "A_matrix") * (scalar() + scalar()), vector(2, "A_vector") * (scalar() + scalar())))))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__mul__, vector(2), trafo([2, 3]))
self.failUnlessEqual(str(trafo([2, 3], "A") * vector(3, "a")), str(matrix([2, 3], "A_matrix") * vector(3, "a") + vector(2, "A_vector")))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__mul__, trafo([2, 3]), vector(2))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__mul__, matrix([3, 2]), trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__mul__, trafo([2, 3]), matrix([3, 2]))
self.failUnlessEqual(str(trafo([2, 3], "A") / 2.0), str(trafo((matrix([2, 3], "A_matrix") / 2.0, vector(2, "A_vector") / 2.0))))
self.failUnlessEqual(str(trafo([2, 3], "A") / 2), str(trafo((matrix([2, 3], "A_matrix") / 2, vector(2, "A_vector") / 2))))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, scalar(), trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, scalar() + scalar(), trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, vector(1), trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, matrix([2, 3]), trafo([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, trafo([2, 3]), scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, trafo([2, 3]), scalar() + scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, trafo([2, 3]), vector(1))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, trafo([2, 3]), matrix([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, trafo([2, 3]), trafo([2, 3]))
def testAccess(self):
s = scalar()
self.failUnlessEqual(s.is_set(), 0)
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), s.get)
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), float, s)
s.set(2)
self.failUnlessEqual(s.is_set(), 1)
self.failUnlessAlmostEqual(s.get(), 2.0)
self.failUnlessAlmostEqual(float(s), 2.0)
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), s.set, 3)
self.failUnlessEqual(s.is_set(), 1)
self.failUnlessAlmostEqual(s.get(), 2.0)
self.failUnlessAlmostEqual(float(s), 2.0)
s = scalar(2)
self.failUnlessEqual(scalar(2).is_set(), 1)
self.failUnlessAlmostEqual(s.get(), 2.0)
self.failUnlessAlmostEqual(float(s), 2.0)
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), s.set, 3)
self.failUnlessEqual(s.is_set(), 1)
self.failUnlessAlmostEqual(s.get(), 2.0)
self.failUnlessAlmostEqual(float(s), 2.0)
z23 = vector([z22.x-z2diff.y, z22.y+z2diff.x])
z24 = vector([z21.x-z2diff.y, z21.y+z2diff.x])
z33 = vector([z32.x-z3diff.y, z32.y+z3diff.x])
z34 = vector([z31.x-z3diff.y, z31.y+z3diff.x])
z43 = vector([z42.x-z4diff.y, z42.y+z4diff.x])
z44 = vector([z41.x-z4diff.y, z41.y+z4diff.x])
# define the centers of the outer squares
z1 = 0.5*(z11 + z13)
z2 = 0.5*(z21 + z23)
z3 = 0.5*(z31 + z33)
z4 = 0.5*(z41 + z43)
# define the crossing point by some equations
z0 = vector(2)
solver.eq(z0, z1 + scalar()*(z3-z1))
solver.eq(z0, z2 + scalar()*(z4-z2))
# finally draw the result
def line(p1, p2):
return path.line(float(p1.x), float(p1.y), float(p2.x), float(p2.y))
def square(p1, p2, p3, p4):
return path.path(path.moveto(float(p1.x), float(p1.y)),
path.lineto(float(p2.x), float(p2.y)),
path.lineto(float(p3.x), float(p3.y)),
path.lineto(float(p4.x), float(p4.y)),
path.closepath())
c = canvas.canvas()
def testMath(self):
self.failUnlessEqual(str(-matrix([2, 3], "A")), "unnamed_matrix{=((unnamed_scalar{=-1.0} * A[0, 0], unnamed_scalar{=-1.0} * A[0, 1], unnamed_scalar{=-1.0} * A[0, 2]), (unnamed_scalar{=-1.0} * A[1, 0], unnamed_scalar{=-1.0} * A[1, 1], unnamed_scalar{=-1.0} * A[1, 2]))}")
self.failUnlessEqual(str(matrix([2, 3], "A") + matrix([2, 3], "B")), "unnamed_matrix{=((A[0, 0] + B[0, 0], A[0, 1] + B[0, 1], A[0, 2] + B[0, 2]), (A[1, 0] + B[1, 0], A[1, 1] + B[1, 1], A[1, 2] + B[1, 2]))}")
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, matrix([2, 3]), 1)
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, matrix([2, 3]), scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, matrix([2, 3]), scalar() + scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, matrix([2, 3]), vector(2))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, matrix([2, 3]), vector(3))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, matrix([2, 3]), matrix([2, 4]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__add__, matrix([2, 3]), matrix([3, 3]))
self.failUnlessEqual(str(matrix([2, 3], "A") - matrix([2, 3], "B")), "unnamed_matrix{=((unnamed_scalar{=-1.0} * B[0, 0] + A[0, 0], unnamed_scalar{=-1.0} * B[0, 1] + A[0, 1], unnamed_scalar{=-1.0} * B[0, 2] + A[0, 2]), (unnamed_scalar{=-1.0} * B[1, 0] + A[1, 0], unnamed_scalar{=-1.0} * B[1, 1] + A[1, 1], unnamed_scalar{=-1.0} * B[1, 2] + A[1, 2]))}")
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, matrix([2, 3]), 1)
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, matrix([2, 3]), scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, matrix([2, 3]), scalar() + scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, matrix([2, 3]), vector(2))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, matrix([2, 3]), vector(3))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, matrix([2, 3]), matrix([2, 4]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__sub__, matrix([2, 3]), matrix([3, 3]))
self.failUnlessEqual(str(2 * matrix([2, 3], "A")), "unnamed_matrix{=((A[0, 0] * unnamed_scalar{=2.0}, A[0, 1] * unnamed_scalar{=2.0}, A[0, 2] * unnamed_scalar{=2.0}), (A[1, 0] * unnamed_scalar{=2.0}, A[1, 1] * unnamed_scalar{=2.0}, A[1, 2] * unnamed_scalar{=2.0}))}")
self.failUnlessEqual(str(matrix([2, 3], "A") * 2), "unnamed_matrix{=((A[0, 0] * unnamed_scalar{=2.0}, A[0, 1] * unnamed_scalar{=2.0}, A[0, 2] * unnamed_scalar{=2.0}), (A[1, 0] * unnamed_scalar{=2.0}, A[1, 1] * unnamed_scalar{=2.0}, A[1, 2] * unnamed_scalar{=2.0}))}")
self.failUnlessEqual(str(matrix([2, 3], "A") * vector(3, "a")), "unnamed_vector{=(A[0, 0] * a[0] + A[0, 1] * a[1] + A[0, 2] * a[2], A[1, 0] * a[0] + A[1, 1] * a[1] + A[1, 2] * a[2])}")
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__mul__, vector(2, "a"), matrix([2, 3], "A"))
self.failUnlessEqual(str(matrix([2, 3], "A") * matrix([3, 2], "B")), "unnamed_matrix{=((A[0, 0] * B[0, 0] + A[0, 1] * B[1, 0] + A[0, 2] * B[2, 0], A[0, 0] * B[0, 1] + A[0, 1] * B[1, 1] + A[0, 2] * B[2, 1]), (A[1, 0] * B[0, 0] + A[1, 1] * B[1, 0] + A[1, 2] * B[2, 0], A[1, 0] * B[0, 1] + A[1, 1] * B[1, 1] + A[1, 2] * B[2, 1]))}")
self.failUnlessEqual(str(matrix([2, 3], "A") / 2.0), "unnamed_matrix{=((unnamed_scalar{=0.5} * A[0, 0], unnamed_scalar{=0.5} * A[0, 1], unnamed_scalar{=0.5} * A[0, 2]), (unnamed_scalar{=0.5} * A[1, 0], unnamed_scalar{=0.5} * A[1, 1], unnamed_scalar{=0.5} * A[1, 2]))}")
self.failUnlessEqual(str(matrix([2, 3], "A") / 2), "unnamed_matrix{=((unnamed_scalar{=0.0} * A[0, 0], unnamed_scalar{=0.0} * A[0, 1], unnamed_scalar{=0.0} * A[0, 2]), (unnamed_scalar{=0.0} * A[1, 0], unnamed_scalar{=0.0} * A[1, 1], unnamed_scalar{=0.0} * A[1, 2]))}")
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, scalar(), matrix([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, scalar() + scalar(), matrix([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, vector(1), matrix([2, 3]))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, matrix([2, 3]), scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, matrix([2, 3]), scalar() + scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, matrix([2, 3]), vector(1))
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, matrix([2, 3]), matrix([2, 3]))
def testMath(self):
self.failUnlessEqual(str(-scalar(name="s")), "unnamed_scalar{=-1.0} * s")
self.failUnlessEqual(str(scalar(name="s") + scalar(name="t")), "s + t")
self.failUnlessEqual(str(scalar(name="s") + 1), "s + unnamed_scalar{=1.0}")
self.failUnlessEqual(str(1 + scalar(name="s")), "s + unnamed_scalar{=1.0}")
self.failUnlessEqual(str(scalar(name="s") - scalar(name="t")), "unnamed_scalar{=-1.0} * t + s")
self.failUnlessEqual(str(1 - scalar(name="s")), "unnamed_scalar{=-1.0} * s + unnamed_scalar{=1.0}")
self.failUnlessEqual(str(2 * scalar(name="s")), "s * unnamed_scalar{=2.0}")
self.failUnlessEqual(str(scalar(name="s") * 2), "s * unnamed_scalar{=2.0}")
self.failUnlessEqual(str(scalar(name="s") * scalar(name="t")), "s * t")
self.failUnlessEqual(str((scalar(name="s") + scalar(name="t")) * 2), "s * unnamed_scalar{=2.0} + t * unnamed_scalar{=2.0}")
self.failUnlessEqual(str(scalar(name="s") / 2.0), "unnamed_scalar{=0.5} * s")
self.failUnlessEqual(str(scalar(name="s") / 2), "unnamed_scalar{=0.0} * s") # integer logic!
self.failUnlessEqual(str((scalar(name="s") + scalar(name="t")) / 2.0), "unnamed_scalar{=0.5} * s + unnamed_scalar{=0.5} * t")
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, 2, scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, scalar(), scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, vector(1), scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, scalar() + scalar(), scalar())
self.failUnlessRaises((RuntimeError, AttributeError, TypeError), operator.__div__, vector(1) + vector(1), scalar())
import sys; sys.path.insert(0, "../..")
from pyx import *
from solve import scalar, vector, solver
A = vector([0, 0], "A")
B = vector([10, 5], "B")
C = vector([0, 10], "C")
D = vector([scalar(), 0], "D")
solver.eq((B-A)*(D-C), 0)
def line(p1, p2):
return path.line(float(p1.x), float(p1.y), float(p2.x), float(p2.y))
c = canvas.canvas()
c.stroke(line(A, B))
c.stroke(line(C, D))
c.writeEPSfile()
c.writePDFfile()
