chore: import upstream snapshot with attribution

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wehub-resource-sync
2026-07-13 13:05:14 +08:00
commit 2a547be7fe
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<!--[metadata]
title = "Minimal example"
thumbnail = "https://static.rerun.io/minimal-example/9e694c0689f20323ed0053506a7a099f7391afca/480w.png"
thumbnail_dimensions = [480, 480]
tags = ["3D", "API example"]
-->
Generates a 3D colored cube and demonstrates how to log a point cloud.
<picture>
<source media="(max-width: 480px)" srcset="https://static.rerun.io/minimal/0e47ac513ab25d56cf2b493128097d499a07e5e8/480w.png">
<source media="(max-width: 768px)" srcset="https://static.rerun.io/minimal/0e47ac513ab25d56cf2b493128097d499a07e5e8/768w.png">
<source media="(max-width: 1024px)" srcset="https://static.rerun.io/minimal/0e47ac513ab25d56cf2b493128097d499a07e5e8/1024w.png">
<source media="(max-width: 1200px)" srcset="https://static.rerun.io/minimal/0e47ac513ab25d56cf2b493128097d499a07e5e8/1200w.png">
<img src="https://static.rerun.io/minimal/0e47ac513ab25d56cf2b493128097d499a07e5e8/full.png" alt="Minimal example screenshot">
</picture>
Straightforward example from the [Quick Start guide](https://www.rerun.io/docs/getting-started/data-in/python) to generate a 3D colored cube and demonstrate how to log a point cloud.
## Used Rerun types
[`Points3D`](https://www.rerun.io/docs/reference/types/archetypes/points3d)
## Logging and visualizing with Rerun
The visualizations in this example were created with the following Rerun code:
It logs 3D points, each associated with a specific color, forming a grid pattern using [`Points3D`](https://www.rerun.io/docs/reference/types/archetypes/points3d) archetype.
```python
import rerun as rr
import numpy as np
rr.init("rerun_example_my_data", spawn=True)
SIZE = 10
pos_grid = np.meshgrid(*[np.linspace(-10, 10, SIZE)] * 3)
positions = np.vstack([d.reshape(-1) for d in pos_grid]).T
col_grid = np.meshgrid(*[np.linspace(0, 255, SIZE)] * 3)
colors = np.vstack([c.reshape(-1) for c in col_grid]).astype(np.uint8).T
rr.log("my_points", rr.Points3D(positions, colors=colors, radii=0.5))
```
## Run the code
To run this example, make sure you have the Rerun repository checked out and the latest SDK installed:
```bash
pip install --upgrade rerun-sdk # install the latest Rerun SDK
git clone git@github.com:rerun-io/rerun.git # Clone the repository
cd rerun
git checkout latest # Check out the commit matching the latest SDK release
```
Install the necessary libraries specified in the requirements file:
```bash
pip install -e examples/python/minimal
```
To experiment with the provided example, simply execute the main Python script:
```bash
python -m minimal # run the example
```
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#!/usr/bin/env python3
"""Demonstrates the most barebone usage of the Rerun SDK."""
from __future__ import annotations
import sys
import numpy as np
import rerun as rr # pip install rerun-sdk
def main() -> None:
# sanity-check since all other example scripts take arguments:
assert len(sys.argv) == 1, f"{sys.argv[0]} does not take any arguments"
rr.init("rerun_example_minimal", spawn=True)
positions = np.vstack([xyz.ravel() for xyz in np.mgrid[3 * [slice(-10, 10, 10j)]]]).T
colors = np.vstack([rgb.ravel() for rgb in np.mgrid[3 * [slice(0, 255, 10j)]]]).astype(np.uint8).T
rr.log("my_points", rr.Points3D(positions, colors=colors, radii=0.5))
if __name__ == "__main__":
main()
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[project]
name = "minimal"
version = "0.1.0"
readme = "README.md"
dependencies = ["numpy", "rerun-sdk"]
[project.scripts]
minimal = "minimal:main"
[build-system]
requires = ["hatchling"]
build-backend = "hatchling.build"