#!/usr/bin/env python
import sys
import os
import math
sys.path.insert(0,
os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
from pyTracer.canvas import canvas
from pyTracer.util import color, Tuple, vector, point
from pyTracer.transforms import *
c = canvas(400, 400)
# c.x_offset = 200 # center it
# c.y_offset = 200 # center it
p = point(1, 0, 0)
r = rotation_z(math.pi / 6)
s = scaling(100, 10, 10)
t = translation(200, 200)
p = t * s * p
for i in range(12):
c.pset(p, color(1, 0, 0))
p = r * p
c.save("clock.ppm")
class env:
def __init__(self, gravity, wind):
self.gravity = gravity
self.wind = wind
class proj:
def __init__(self, position, velocity):
self.position = position
self.velocity = velocity
def tick(e, p):
position = p.position + p.velocity
velocity = p.velocity + e.gravity + e.wind
return proj(position, velocity)
c = canvas(900, 500)
p = proj(point(0, 1, 0), vector(1, 1.8, 0).normalize() * 11.25)
e = env(vector(0, -0.1, 0), vector(-0.01, 0, 0))
for i in range(0, 200):
p = tick(e, p)
print(p.position, p.velocity)
c.set(int(p.position.x), c.height - int(p.position.y), color(1, 0, 0))
c.save("test.ppm")
def step_impl(context): context.p = point(3,2,1)
def step_impl(context): assert context.p -context.v == point(-2,-4,-6)
def step_impl(context): context.p2 = point(5,6,7)