| Name | tiny-3d-engine JSON |
| Version |
1.0.2
JSON |
| download |
| home_page | None |
| Summary | Open source tiny 3D engine for tkinter |
| upload_time | 2025-10-08 08:15:16 |
| maintainer | None |
| docs_url | None |
| author | None |
| requires_python | >=3.11 |
| license | CeCILL-B FREE SOFTWARE LICENSE AGREEMENT
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Version 1.0 dated 2006-09-05.
|
| keywords |
3d
python
tkinter
|
| VCS |
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| bugtrack_url |
|
| requirements |
No requirements were recorded.
|
| Travis-CI |
No Travis.
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| coveralls test coverage |
No coveralls.
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# Tiny 3D Engine
This package is a python 3D engine based on the Tkinter Canvas.
It uses Numpy for math handling.
*It is available on [pipy](https://pypi.org/project/tiny-3d-engine/),
documentation is on [readtthedocs](https://tiny-3d-engine.readthedocs.io/en/latest/), sources are mirrored on [gitlab.com](https://gitlab.com/cerfacs/tiny_3d_engine)*
Install this using
```bash
pip install tiny_3d_engine
```
It create simle 3D rendering for `bars`, `tri` and `quad` elements and store the scenes in Ensight's ASCII `.geo`format.
A trivial grid would look like:
## Loading a model
In this simple example, a .geo file is loaded `load_file_as_scene` into a 3D scene. This scene is given to a new engine object `Engine3D`. We apply a rotation `.rotate()` before rendering `.render()`the scene on the screen, then leave the interaction to the user `.mainloop()`.
```python
scene = load_file_as_scene("myfile.geo")
test = Engine3D(scene)
test.rotate('y', 45)
test.render()
test.mainloop()
```
## The SCENE and the ENGINE
The **SCENE** is an object storing the 3D model.
A void scene is simply `None`. You can update a scene with the method `.update()`. Each scene handle several parts identified by a name, a string looking either as `-tag-` (e.g. `"ceiling"`) or as `-family-.-tag-` (e.g. `"house.ceiling"`).
The **ENGINE** is used to project the scene on the 2D screen.
Once started, the view point can be contrlled by methods such as `.translate()` or `.rotate()`, then refreshed with `.render()`. The scen cane be update with `.update()`. If you want user interaction with the result, finish with the typical TK `.mainloop()`.
## What if I already have my vertices and polygons?
In the following example, two squares are appended to an initially void **Scene3D** object, using the method `scene.add_or_update_part`.
- The first, in blue, is made of edges (2 vertices connectivity)
- The second, in red, is made od squares (4 vertices connectivity)
This scene is passed to the **Engine3D** object, triggering a window.
```python
from tiny_3d_engine import (Scene3D, Engine3D)
scene = Scene3D()
SIZE = 2
LENGTH= 200.
points = list()
conn = list()
dx = LENGTH/
for i in range(SIZE):
for j in range(SIZE):
index = len(points)
points.append([i*dx, j*dx, 0])
points.append([(i+1)*dx, j*dx, 0])
points.append([i*dx, (j+1)*dx, 0])
points.append([(i+1)*dx, (j+1)*dx, 0])
conn.append([index, index+1])
conn.append([index+3, index+1])
scene.update("square1", points, conn, color="#0000ff")
points = list()
conn = list()
for i in range(SIZE):
for j in range(SIZE):
index = len(points)
points.append([i*dx, j*dx, LENGTH])
points.append([(i+1)*dx, j*dx, LENGTH])
points.append([i*dx, (j+1)*dx, LENGTH])
points.append([(i+1)*dx, (j+1)*dx, LENGTH])
conn.append([index, index+1, index+3, index+2])
scene.update("square2", points, conn, color="#ff0000")
test = Engine3D(scene)
test.rotate("x", 45)
test.rotate("y", 45)
test.render()
test.mainloop()
```
(It would have been easier in numpy, but I wanted to keep this readable for non-numpy programmers)
## Command line
A small command line interface is available:
```bash
Usage: tiny_3d_engine [OPTIONS] COMMAND [ARGS]...
--------------- TINY_3D_ENGINE --------------------
You are now using the Command line interface of Tiny 3D engine, a Python3
Tkinter lightweight 3D engine, created at CERFACS (https://cerfacs.fr).
This package is likely as a dependency of other packages, to
provide a light 3D feedback for small 3D scenes <100 000 polygons. This
CLI is given here for developers perusal and demonstrations. Find the
script of these small tools in the /examples folder of the package.
This is a python package currently installed in your python environement.
See the full documentation at :
https://tiny-3d-engine.readthedocs.io/en/latest/.
DISCLAIMER: Tiny 3D engine is a brute force flat renderer. As it is NOT
using your graphical card, do not excpect anything fancier than a 1980
video game.
Options:
--help Show this message and exit.
Commands:
bench Run a short benchmark on your machine.
load Load a 3D scene from FILENAME.
rabbit Run a demo with the Stanford Rabbit.
```
## Performances
Do not expect more than an early 90s videogame. During mouse interations, the frames per second is roughly 30 000 / nb. of polygons (i.e. 15 fps for 2000 polygons).
The engine is by default limited 100 000 polygons in a static view and 2 000 during mouse interactions. If the model goes beyond these limits, the engine ramdomly remove polygons at the loading time, to keep the window responsive.
## Requirements
The present library require Numpy and Tkinter.
The Tk aspects are limited to the **screen** object.
In the future I might write extensions for PyQT4 Canvas or Matplotlib... or not.
## Origins
This work stems from a mix between a Pure Tcl/Tk Engine of mine [ pure TK 3d engine](https://gitlab.com/cerfacs/opentea/blob/1.7/c3sm/create_viewer3d.tcl) and the the pyEngine3D-master of [henry Haefliger](https://github.com/hnhaefliger) [pyEngine3D](https://github.com/hnhaefliger/PyEngine3D) , because I really liked the API.
The present one allow several parts to be loaded, and uses numpy.
Scenes can be dumped or read from the Ensight .case/.geo files.
Raw data
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"requires_python": ">=3.11",
"maintainer_email": null,
"keywords": "3D, python, tkinter",
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"author_email": "CoopTeam-CERFACS <coop@cerfacs.fr>",
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"platform": null,
"description": "# Tiny 3D Engine\n\n\n\nThis package is a python 3D engine based on the Tkinter Canvas.\nIt uses Numpy for math handling.\n\n*It is available on [pipy](https://pypi.org/project/tiny-3d-engine/), \ndocumentation is on [readtthedocs](https://tiny-3d-engine.readthedocs.io/en/latest/), sources are mirrored on [gitlab.com](https://gitlab.com/cerfacs/tiny_3d_engine)*\n\nInstall this using \n\n```bash\npip install tiny_3d_engine\n```\n\n\nIt create simle 3D rendering for `bars`, `tri` and `quad` elements and store the scenes in Ensight's ASCII `.geo`format.\nA trivial grid would look like:\n\n\n\n## Loading a model\n\nIn this simple example, a .geo file is loaded `load_file_as_scene` into a 3D scene. This scene is given to a new engine object `Engine3D`. We apply a rotation `.rotate()` before rendering `.render()`the scene on the screen, then leave the interaction to the user `.mainloop()`.\n\n```python\n\nscene = load_file_as_scene(\"myfile.geo\")\n\ntest = Engine3D(scene)\n\ntest.rotate('y', 45)\ntest.render()\ntest.mainloop()\n```\n\n## The SCENE and the ENGINE\n\nThe **SCENE** is an object storing the 3D model. \nA void scene is simply `None`. You can update a scene with the method `.update()`. Each scene handle several parts identified by a name, a string looking either as `-tag-` (e.g. `\"ceiling\"`) or as `-family-.-tag-` (e.g. `\"house.ceiling\"`).\n\n\n\nThe **ENGINE** is used to project the scene on the 2D screen. \nOnce started, the view point can be contrlled by methods such as `.translate()` or `.rotate()`, then refreshed with `.render()`. The scen cane be update with `.update()`. If you want user interaction with the result, finish with the typical TK `.mainloop()`.\n\n\n## What if I already have my vertices and polygons?\n\nIn the following example, two squares are appended to an initially void **Scene3D** object, using the method `scene.add_or_update_part`.\n\n- The first, in blue, is made of edges (2 vertices connectivity)\n- The second, in red, is made od squares (4 vertices connectivity)\n\nThis scene is passed to the **Engine3D** object, triggering a window.\n\n```python\nfrom tiny_3d_engine import (Scene3D, Engine3D)\n\nscene = Scene3D()\n\nSIZE = 2\nLENGTH= 200.\npoints = list()\nconn = list()\ndx = LENGTH/\n\nfor i in range(SIZE):\n for j in range(SIZE):\n index = len(points)\n points.append([i*dx, j*dx, 0])\n points.append([(i+1)*dx, j*dx, 0])\n points.append([i*dx, (j+1)*dx, 0])\n points.append([(i+1)*dx, (j+1)*dx, 0])\n conn.append([index, index+1])\n conn.append([index+3, index+1])\n \nscene.update(\"square1\", points, conn, color=\"#0000ff\")\n\npoints = list()\nconn = list()\nfor i in range(SIZE):\n for j in range(SIZE):\n index = len(points)\n points.append([i*dx, j*dx, LENGTH])\n points.append([(i+1)*dx, j*dx, LENGTH])\n points.append([i*dx, (j+1)*dx, LENGTH])\n points.append([(i+1)*dx, (j+1)*dx, LENGTH])\n conn.append([index, index+1, index+3, index+2])\nscene.update(\"square2\", points, conn, color=\"#ff0000\")\n\ntest = Engine3D(scene)\ntest.rotate(\"x\", 45)\ntest.rotate(\"y\", 45)\ntest.render()\ntest.mainloop()\n\n```\n\n(It would have been easier in numpy, but I wanted to keep this readable for non-numpy programmers)\n \n\n## Command line\n\nA small command line interface is available:\n\n```bash\nUsage: tiny_3d_engine [OPTIONS] COMMAND [ARGS]...\n\n --------------- TINY_3D_ENGINE --------------------\n\n You are now using the Command line interface of Tiny 3D engine, a Python3\n Tkinter lightweight 3D engine, created at CERFACS (https://cerfacs.fr).\n\n This package is likely as a dependency of other packages, to\n provide a light 3D feedback for small 3D scenes <100 000 polygons. This\n CLI is given here for developers perusal and demonstrations. Find the\n script of these small tools in the /examples folder of the package.\n\n This is a python package currently installed in your python environement.\n See the full documentation at :\n https://tiny-3d-engine.readthedocs.io/en/latest/.\n\n DISCLAIMER: Tiny 3D engine is a brute force flat renderer. As it is NOT\n using your graphical card, do not excpect anything fancier than a 1980\n video game.\n\nOptions:\n --help Show this message and exit.\n\nCommands:\n bench Run a short benchmark on your machine.\n load Load a 3D scene from FILENAME.\n rabbit Run a demo with the Stanford Rabbit.\n```\n\n## Performances\n\nDo not expect more than an early 90s videogame. During mouse interations, the frames per second is roughly 30 000 / nb. of polygons (i.e. 15 fps for 2000 polygons).\n\nThe engine is by default limited 100 000 polygons in a static view and 2 000 during mouse interactions. If the model goes beyond these limits, the engine ramdomly remove polygons at the loading time, to keep the window responsive. \n\n## Requirements\n\nThe present library require Numpy and Tkinter. \nThe Tk aspects are limited to the **screen** object.\nIn the future I might write extensions for PyQT4 Canvas or Matplotlib... or not.\n\n## Origins\n\nThis work stems from a mix between a Pure Tcl/Tk Engine of mine [ pure TK 3d engine](https://gitlab.com/cerfacs/opentea/blob/1.7/c3sm/create_viewer3d.tcl) and the the pyEngine3D-master of [henry Haefliger](https://github.com/hnhaefliger) [pyEngine3D](https://github.com/hnhaefliger/PyEngine3D) , because I really liked the API.\n\nThe present one allow several parts to be loaded, and uses numpy.\nScenes can be dumped or read from the Ensight .case/.geo files.\n",
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"license": "CeCILL-B FREE SOFTWARE LICENSE AGREEMENT\n \n \n Notice\n \n This Agreement is a Free Software license agreement that is the result\n of discussions between its authors in order to ensure compliance with\n the two main principles guiding its drafting:\n \n * firstly, compliance with the principles governing the distribution\n of Free Software: access to source code, broad rights granted to\n users,\n * secondly, the election of a governing law, French law, with which\n it is conformant, both as regards the law of torts and\n intellectual property law, and the protection that it offers to\n both authors and holders of the economic rights over software.\n \n The authors of the CeCILL-B (for Ce[a] C[nrs] I[nria] L[ogiciel] L[ibre])\n license are: \n \n Commissariat \u00e0 l'Energie Atomique - CEA, a public scientific, technical\n and industrial research establishment, having its principal place of\n business at 25 rue Leblanc, immeuble Le Ponant D, 75015 Paris, France.\n \n Centre National de la Recherche Scientifique - CNRS, a public scientific\n and technological establishment, having its principal place of business\n at 3 rue Michel-Ange, 75794 Paris cedex 16, France.\n \n Institut National de Recherche en Informatique et en Automatique -\n INRIA, a public scientific and technological establishment, having its\n principal place of business at Domaine de Voluceau, Rocquencourt, BP\n 105, 78153 Le Chesnay cedex, France.\n \n \n Preamble\n \n This Agreement is an open source software license intended to give users\n significant freedom to modify and redistribute the software licensed\n hereunder.\n \n The exercising of this freedom is conditional upon a strong obligation\n of giving credits for everybody that distributes a software\n incorporating a software ruled by the current license so as all\n contributions to be properly identified and acknowledged.\n \n In consideration of access to the source code and the rights to copy,\n modify and redistribute granted by the license, users are provided only\n with a limited warranty and the software's author, the holder of the\n economic rights, and the successive licensors only have limited liability.\n \n In this respect, the risks associated with loading, using, modifying\n and/or developing or reproducing the software by the user are brought to\n the user's attention, given its Free Software status, which may make it\n complicated to use, with the result that its use is reserved for\n developers and experienced professionals having in-depth computer\n knowledge. 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These subsequent versions may\n address new issues encountered by Free Software.\n \n 12.3 Any Software distributed under a given version of the Agreement may\n only be subsequently distributed under the same version of the Agreement\n or a subsequent version.\n \n \n Article 13 - GOVERNING LAW AND JURISDICTION\n \n 13.1 The Agreement is governed by French law. The Parties agree to\n endeavor to seek an amicable solution to any disagreements or disputes\n that may arise during the performance of the Agreement.\n \n 13.2 Failing an amicable solution within two (2) months as from their\n occurrence, and unless emergency proceedings are necessary, the\n disagreements or disputes shall be referred to the Paris Courts having\n jurisdiction, by the more diligent Party.\n \n \n Version 1.0 dated 2006-09-05.\n ",
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