https://github.com/mikolalysenko/splat-points-3d

Splats a collection of points onto a 3D volume
https://github.com/mikolalysenko/splat-points-3d

Last synced: about 2 months ago
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Splats a collection of points onto a 3D volume

• Host: GitHub
• URL: https://github.com/mikolalysenko/splat-points-3d
• Owner: mikolalysenko
• License: mit
• Created: 2014-01-31T05:47:47.000Z (almost 11 years ago)
• Default Branch: master
• Last Pushed: 2015-05-04T19:07:58.000Z (over 9 years ago)
• Last Synced: 2024-10-10T21:40:15.642Z (3 months ago)
• Language: JavaScript
• Size: 113 KB
• Stars: 3
• Watchers: 3
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
splat-points-3d

===============

Splats a point cloud onto a volumetric grid.

## Example

```javascript

var splat = require("splat-points-3d")

var pack = require("ndarray-pack")

var zeros = require("zeros")

var points = pack([

  [1, 0, 0],

  [0, 4, 0],

  [0, 0, 8]

])

var weights = pack([

  1,

  2,

  4

])

var grid = zeros([32, 32, 32])

splat(grid, points, weights, 3.0)

```

## Install

```

npm install splat-points-3d

```

## API

### `require("splat-points-3d")(out, points, weights, radius)`

Splats a collection of points onto a 3D volumetric grid using Lanczos/sinc filtering.  If you want a different kernel afterwards, you can apply a convolution via the FFT

* `out` is a 3D ndarray

* `points` is a `[n, 3]` shape ndarray encoding the x/y/z grid coordinates of the points to splat

* `weights` is a `[n]` shape ndarray

* `radius` is the radius of the point splat to draw

## Credits

(c) 2014 Mikola Lysenko. MIT License