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vgl-polar-grid-helper.js
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vgl-polar-grid-helper.js
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import { PolarGridHelper } from 'three';
import VglObject3d from '../core/vgl-object3d';
import { float, int, color } from '../types';
/**
* A component to define polar grids,
* correcponding [THREE.PolarGridHelper](https://threejs.org/docs/index.html#api/helpers/PolarGridHelper).
* Grids are two-dimensional arrays of lines.
*
* Properties of [VglObject3d](../core/vgl-object3d) are also available as mixin.
*/
export default {
mixins: [VglObject3d],
props: {
/** The radius of the polar grid. This can be any positive number. */
radius: { type: float, default: 10 },
/** The number of radial lines. This can be any positive integer. */
radials: { type: int, default: 16 },
/** The number of circles. This can be any positive integer. */
circles: { type: int, default: 8 },
/**
* The number of line segments used for each circle.
* This can be any positive integer that is 3 or greater.
*/
divisions: { type: int, default: 64 },
/** The first color used for grid elements. */
color1: { type: color, default: '#444444' },
/** The second color used for grid elements. */
color2: { type: color, default: '#888888' },
},
computed: {
/** The THREE.PolarGridHelper instance. */
inst() {
return new PolarGridHelper(
parseFloat(this.radius),
parseInt(this.radials, 10),
parseInt(this.circles, 10),
parseInt(this.divisions, 10),
this.color1,
this.color2,
);
},
},
};