You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
35 lines
1004 B
35 lines
1004 B
2 years ago
|
import numpy
|
||
|
|
|
||
|
|
num_segments = 1000
|
||
|
|
num_rotations = 10
|
||
|
|
|
||
|
|
|
||
|
|
def print_curve(r, theta, y, id_offset):
|
||
|
|
x = r * numpy.cos(theta)
|
||
|
|
z = r * numpy.sin(theta)
|
||
|
|
y = numpy.full(x.shape, y)
|
||
|
|
|
||
|
|
V = numpy.hstack([x.reshape(-1, 1), y.reshape(-1, 1), z.reshape(-1, 1)])
|
||
|
|
for v in V:
|
||
|
|
print("v {:g} {:g} {:g}".format(*v))
|
||
|
|
|
||
|
|
# for i in range(id_offset + 1, id_offset + num_segments):
|
||
|
|
# print(f"l {i:d} {i+1:d}")
|
||
|
|
|
||
|
|
|
||
|
|
theta = numpy.linspace(0, num_rotations * 2 * numpy.pi, num_segments)
|
||
|
|
r = (theta + numpy.pi) / (10 * numpy.pi)
|
||
|
|
print_curve(r, theta, 0.1, 0)
|
||
|
|
|
||
|
|
r = theta / (10 * numpy.pi)
|
||
|
|
print_curve(r, theta, 0, num_segments)
|
||
|
|
|
||
|
|
for i in range(1, num_segments):
|
||
|
|
print(f"f {i:d} {i+1:d} {i + num_segments:d}")
|
||
|
|
print(f"f {i+num_segments:d} {i+num_segments+1:d} {i+1:d}")
|
||
|
|
|
||
|
|
offset = num_segments // num_rotations
|
||
|
|
for i in range(1, num_segments - offset):
|
||
|
|
print(f"f {i:d} {i+1:d} {i + num_segments + offset:d}")
|
||
|
|
print(f"f {i+num_segments+offset:d} {i+num_segments+offset+1:d} {i+1:d}")
|