symbian-qemu-0.9.1-12/python-2.6.1/Demo/classes/Vec.py
author johnathan.white@2718R8BGH51.accenture.com
Mon, 08 Mar 2010 18:45:03 +0000
changeset 46 b6935a90ca64
parent 1 2fb8b9db1c86
permissions -rw-r--r--
Modify framebuffer and NGA framebuffer to read screen size from board model dtb file. Optimise memory usuage of frame buffer Add example minigui application with hooks to profiler (which writes results to S:\). Modified NGA framebuffer to run its own dfc queue at high priority

# A simple vector class


def vec(*v):
    return Vec(*v)


class Vec:

    def __init__(self, *v):
        self.v = list(v)

    def fromlist(self, v):
        if not isinstance(v, list):
            raise TypeError
        self.v = v[:]
        return self

    def __repr__(self):
        return 'vec(' + repr(self.v)[1:-1] + ')'

    def __len__(self):
        return len(self.v)

    def __getitem__(self, i):
        return self.v[i]

    def __add__(self, other):
        # Element-wise addition
        v = map(lambda x, y: x+y, self, other)
        return Vec().fromlist(v)

    def __sub__(self, other):
        # Element-wise subtraction
        v = map(lambda x, y: x-y, self, other)
        return Vec().fromlist(v)

    def __mul__(self, scalar):
        # Multiply by scalar
        v = map(lambda x: x*scalar, self.v)
        return Vec().fromlist(v)



def test():
    a = vec(1, 2, 3)
    b = vec(3, 2, 1)
    print a
    print b
    print a+b
    print a-b
    print a*3.0

test()