@gcu/grid

Regular block-model grid utilities: geometry (index/flat conversion, centroids, rotation), selections (masks, boolean ops, classification), compacting, operations (map, reduce, histogram, grade-tonnage, swath plots), spatial queries (slices, shells, regridding).

Part of Auditable. Used with @gcu/voxmesh and @gcu/dee for 3D visualization.

Pre-1.0 — APIs may break on minor version bumps.

Install

npm install @gcu/grid

Usage

import { ijk, flatIndex, centroid, maskAboveValue, gradeTonnage } from '@gcu/grid';

const g = { origin: [0, 0, 0], size: [10, 10, 5], count: [100, 100, 20] };

flatIndex(g, 5, 7, 2);         // flat array index for (i=5, j=7, k=2)
centroid(g, 5, 7, 2);          // world-space centroid of that block

const grade = new Float32Array(/* ... */);
const ore = maskAboveValue(grade, 0.5);
gradeTonnage(grade, { density: 2.7, cutoffs: [0.1, 0.3, 0.5, 0.7] });

Sub-path imports: @gcu/grid/geometry, @gcu/grid/selection, @gcu/grid/compact, @gcu/grid/operations, @gcu/grid/spatial.

License

MIT.