File:Triaugmented triangular prism (symmetric view).svg
.svg){kind=small}
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Original file (SVG file, nominally 440 × 413 pixels, file size: 650 bytes)
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Summary
| Description |
English: Symmetric view of a triaugmented triangular prism |
| Date | |
| Source | Own work |
| Author | David Eppstein |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
 
|
This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
|
Source code
import numpy, svg3d, pyrr, math
midnum = 1+6**0.5 midden = 2*3**0.5 ort = 3**-0.5 top = [(-1,-ort,1),(0,2*ort,1),(1,-ort,1)] mid = [(midnum/2,midnum/midden,0),(0,-2**0.5-ort,0),(-midnum/2,midnum/midden,0)] bot = [(-1,-ort,-1),(0,2*ort,-1),(1,-ort,-1)]
def step(i):
i += 1
if i % 3 == 0:
i -= 3
return i
def rot(a,b,c):
out=a,b,c
a,b,c = step(a),step(b),step(c)
out += a,b,c
a,b,c = step(a),step(b),step(c)
out += a,b,c
return out
def get_faces():
verts = numpy.float32(top+mid+bot)
triangles = [[0,1,2],[6,7,8]]+rot(0,1,5)+rot(6,7,5)+rot(0,6,4)+rot(0,6,5)
return 7.5 * verts[numpy.int32(triangles)]
def generate_svg(filename):
view = pyrr.matrix44.create_look_at(
eye=[0,0,60], target=[0, 0, 0], up=[0, -1, 0]
)
projection = pyrr.matrix44.create_perspective_projection(
fovy=30, aspect=1, near=10, far=200
)
camera = svg3d.Camera(view, projection)
style = dict(
fill="#D8F0FF",
fill_opacity="0.8",
stroke="black",
stroke_linejoin="round",
stroke_width="0.005",
)
mesh = svg3d.Mesh(get_faces(), style=style)
view = svg3d.View(camera, svg3d.Scene([mesh]))
svg3d.Engine([view]).render(filename)
generate_svg("Triaugmented_triangular_prism_(symmetric_view).svg")
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:43, 27 September 2022 | | 440 × 413 (650 bytes) | David Eppstein | Uploaded own work with UploadWizard |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
.svg){kind=link}