2.2.0 • Published 8 months ago
geom-center-and-normalize v2.2.0
geom-center-and-normalize
Center a simplicial complex geometry's positions in place and scale them to fill a defined bounding box.
Installation
npm install geom-center-and-normalize
Usage
import centerAndNormalize from "geom-center-and-normalize";
const positions = new Float32Array([
// p1 [x, y, z]
1, 1, 1,
// p2 [x, y, z]
2, 2, 2,
// p3 [x, y, z]
3, 5, 3,
]);
const normalizedPositions = centerAndNormalize(positions);
// => Float32Array(9) [
// -0.25, -0.5, -0.25,
// 0, -0.25, 0,
// 0.25, 0.5, 0.25,
// ]
API
centerAndNormalize(positions, [options]): positions
Parameters
positions:
TypedArray | Array | Array<[x, y, z]>
– simplicial complex geometry positions (eg.new Float32Array([x, y, z, x, y, z, ...])/new Array(x, y, z, x, y, z, ...)
ornew Array([x, y, z], [x, y, z], ...)
)options:
{ center: boolean, normalize: boolean, normalizedSize: number }
– enable/disable centering/normalizing and control normalized scaling.center
andnormalize
defaults totrue
. Scale defaults to1
.
Returns
- positions:
TypedArray | Array | Array<[x, y, z]>
– The positions parameter array updated, centered at[0, 0, 0]
and normalized to a bounding box ofnormalizedSize
([-halfScale, -halfScale, -halfScale] x [halfScale, halfScale, halfScale]
).
License
MIT. See license file.