Original file(SVG file, nominally 440 × 413 pixels, file size: 650 bytes)

## Summary

 Description English: Symmetric view of a triaugmented triangular prism Date 27 September 2022 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")
```

# Information

### Captions

Symmetric view of a triaugmented triangular prism

## File history

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Date/TimeThumbnailDimensionsUserComment
current 21:43, 27 September 2022 440 × 413 (650 bytes)David EppsteinUploaded own work with UploadWizard
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