def __init__(self, size, loc=None, color='#2f2f2f'):
self.size = size
self.color = color
self.loc = loc if loc is not None else Vector2(0, 0)
self.down = Vector2(0, self.size)
self.right = Vector2(self.size, 0)
super(PlusView, self).__init__()
def offset_by(self, vec):
'''
move all coordinates in world_vertices by vec
'''
for vnum in range(len(self.world_vertices) / 3):
vhead = vnum * 3
old_vec = Vector2(self.world_vertices[vhead],
self.world_vertices[vhead + 1])
self.set_vector(vnum, old_vec + vec)
def find_corners(self):
wd = self.width
axis = self.v2 - self.v1
perp = Vector2(axis.y, -axis.x)
perp /= perp.length()
c1 = self.v1 + wd * perp
c2 = self.v1 - wd * perp
c3 = self.v2 - wd * perp
c4 = self.v2 + wd * perp
return c1, c2, c3, c4
print report
# seg1 = Vector2(0.75, 1.0)
# seg2 = Vector2(0.5, 0.5)
# tip = Vector2(0.5, 0.5)
# left = Vector2(-0.3, 1.3)
# right = Vector2(1.3, 1.3)
# print(Vector2.where_segment_crosses_ray(seg1, seg2, tip, left))
# print(Vector2.where_segment_crosses_ray(seg1, seg2, tip, right))
test_case(
"check what happens when segment lies on the ray behind the tip:",
ray1=Vector2(0.5, 0.5), # tip
ray2=Vector2(1.5, 1.5), # target
seg1=Vector2(0.15, 0.15),
seg2=Vector2(0.45, 0.45),
crosses=False,
cross_point=None)
test_case(
"check what happens when segment lies on the ray behind the tip (seg flipped):",
ray1=Vector2(0.5, 0.5), # tip
ray2=Vector2(1.5, 1.5), # target
seg1=Vector2(0.45, 0.45),
seg2=Vector2(0.15, 0.15),
crosses=False,
cross_point=None)
from mesh2d import Mesh2d, Vector2
def poly_repr(poly):
outl = poly.outline_coordinates()
crds = list(
(outl[2 * pos], outl[2 * pos + 1]) for pos in range(len(outl) / 2))
st = ''
st += 'indices: ' + repr(poly.outline)
st += '\n'
st += 'outline: ' + repr(crds)
return st
a = Vector2(0., 0.)
b = Vector2(1., 0.)
c = Vector2(1., 1.)
d = Vector2(0., 1.)
i1 = Vector2(0.5, 0.25)
i2 = Vector2(0.75, 0.5)
i3 = Vector2(0.5, 0.75)
i4 = Vector2(0.25, 0.5)
vertices = [a, b, c, d]
poly = Mesh2d(vertices[:], range(len(vertices)))
print(poly_repr(poly))
print(
def test_case(NW, SE):
start = NW
end = SE
v0 = start
v1 = Vector2(end.x, start.y)
v2 = end
v3 = Vector2(start.x, end.y)
width = end.x - start.x
height = end.y - start.y
cntr_x = start.x + width / 2.
cntr_y = start.y + height / 2.
cntr = Vector2(cntr_x, cntr_y)
sz = min(height, width) / 4.
h10 = (Vector2(.1, .9) - Vector2(.5, .5)) * sz + cntr #4
h11 = (Vector2(.1, .1) - Vector2(.5, .5)) * sz + cntr #5
h12 = (Vector2(.4, .1) - Vector2(.5, .5)) * sz + cntr #6
h13 = (Vector2(.4, .9) - Vector2(.5, .5)) * sz + cntr #7
h20 = (Vector2(.9, .9) - Vector2(.5, .5)) * sz + cntr #8
h21 = (Vector2(.5, .5) - Vector2(.5, .5)) * sz + cntr #9
h22 = (Vector2(.9, .1) - Vector2(.5, .5)) * sz + cntr #10
poly = Mesh2d([v0, v1, v2, v3], range(4))
poly.add_hole([h10, h11, h12, h13])
poly.add_hole([h20, h21, h22])
ray1 = poly.vertices[10].copy()
# ray2 = ray1 + Vector2(0., -1.)
ray1 = Vector2(54.8, -124.8)
ray2 = Vector2(54.8, -313.0)
inters = poly.trace_ray(ray1, ray2)
edge = inters[1]
if edge != (0, 1): return False, inters
return True, inters
poly.add_hole([h20, h21, h22])
ray1 = poly.vertices[10].copy()
# ray2 = ray1 + Vector2(0., -1.)
ray1 = Vector2(54.8, -124.8)
ray2 = Vector2(54.8, -313.0)
inters = poly.trace_ray(ray1, ray2)
edge = inters[1]
if edge != (0, 1): return False, inters
return True, inters
nw = Vector2(-211, -313)
se = Vector2(232, 152)
result, inters = test_case(nw, se)
print("inters: {}, on edge {}".format(inters[0], inters[1]))
# do test after test forever
# rnd_size = 100.
# min_size = 0.1
# start_nw = 0
# end_nw = rnd_size + min_size
# count = 0
import sys import os # import pudb; pu.db here = os.path.abspath(os.path.dirname(__file__)) module_root = os.path.join(here, "..") sys.path.append(module_root) from mesh2d import Vector2 # check equality and inequality operations a = Vector2(0.5, 0.5) b = Vector2(0.5, 0.5) assert((a == b) == True) assert((a != b) == False) b = Vector2(0.5, 0.45) assert((a == b) == False) assert((a != b) == True) b = Vector2(0.45, 0.5)
import sys
import os
here = os.path.abspath(os.path.dirname(__file__))
module_root = os.path.join(here, "..")
sys.path.append(module_root)
from mesh2d import Mesh2d, Vector2
indices = [0, 1, 2, 5, 6, 3, 7, 4]
vertices = [
Vector2(0., 0.),
Vector2(0.5, 0.5),
Vector2(1., 0.),
Vector2(1., 1.),
Vector2(0., 1.),
Vector2(1., 0.5),
Vector2(1., 0.75),
Vector2(0.75, 1.),
]
poly = Mesh2d(vertices, indices)
# should be outside
portal1 = {'start_index': 1, 'end_index': 5, 'end_point': vertices[5]}
portal1r = {'start_index': 5, 'end_index': 1, 'end_point': vertices[1]}
# should be outside
print("row(4) = {}".format(mtx1.row(4)))
print("")
try:
mtx1.column(4)
except ValueError as ve:
print(ve)
try:
mtx1.row(5)
except ValueError as ve:
print(ve)
print("\ntesting column and row methods for Vector2")
vct = Vector2(16, -12)
print("Vector2 row(0) = {}".format(vct.row(0)))
print("Vector2 row(1) = {}".format(vct.row(1)))
print("Vector2 row(2) = {}".format(vct.row(2)))
print("")
print("Vector2 col(0) = {}".format(vct.column(0)))
try:
vct.row(3)
except ValueError as ve:
print(ve)
try:
vct.column(1)
except ValueError as ve:
def apply_transform(transform, vertices):
return list(transform.multiply(Vector2(vert[0], vert[1])).values[:-1] \
for vert in vertices)
import os
# import pudb; pu.db
here = os.path.abspath(os.path.dirname(__file__))
module_root = os.path.join(here, "..")
sys.path.append(module_root)
from mesh2d import Vector2
# check equality and inequality operations
print("\nshould be (0,4)")
rel1 = Vector2.lines_intersect(
Vector2(0., 0.), Vector2(0., 5.),
Vector2(2., 4.), Vector2(-2., 4.),)
print(rel1.intersection)
print(rel1.identical)
print("\nshould be (0,5)")
rel1 = Vector2.lines_intersect(
Vector2(0., 0.), Vector2(0., 5.),
Vector2(2., 5.), Vector2(-2., 5.),)
print(rel1.intersection)
print(rel1.identical)