A unit family of your own

import * as ng from '@angular/core';
import { Component } from '@angular/core';
import { bootstrapApplication } from '@angular/platform-browser';
import { createGrid, registerUnitSystem, defineUnit, createUnitType } from '@toclocoinc/lattice-grid';
import '@toclocoinc/lattice-grid/css';
import createLatticeGrid from '@toclocoinc/lattice-grid/modules/angular';

const { LatticeGridComponent } = createLatticeGrid({ ng, createGrid });

// A unit family of your own. factor is how many base units one of these is;
// exactly one must be 1. The factors are the ladder, sorted at load.
registerUnitSystem('yarn', [
  defineUnit('tex',  1,     ['tx']),
  defineUnit('ktex', 1e3,   [], { prefix: 'k' }),
  defineUnit('den',  1 / 9, ['denier']),
]);

const dataTypes = {
  linearDensity: createUnitType({ system: 'yarn', unit: 'tex', display: 'auto' }),
};

const columns = [
  { field: 'yarn', title: 'Yarn', layout: { pin: 'start', width: 130 } },
  { field: 'count', title: 'Linear density', type: 'linearDensity', total: 'median' },
];

// 1500 tex renders as 1.5 ktex; typing "9 den" stores 1.
const rows = [/* yarn records */];



@Component({
  selector: 'app-root',
  standalone: true,
  imports: [LatticeGridComponent],
  template: '<lattice-grid [config]="grid" style="display:block;height:460px"></lattice-grid>',
})
export class AppComponent {
  grid = {
    rowKey: 'id',
    dataTypes: dataTypes,
    columns: columns,
    rows: rows,
  };
}

bootstrapApplication(AppComponent);