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- import {
- BufferGeometry,
- Float32BufferAttribute
- } from 'three';
- class BoxLineGeometry extends BufferGeometry {
- constructor( width = 1, height = 1, depth = 1, widthSegments = 1, heightSegments = 1, depthSegments = 1 ) {
- super();
- widthSegments = Math.floor( widthSegments );
- heightSegments = Math.floor( heightSegments );
- depthSegments = Math.floor( depthSegments );
- const widthHalf = width / 2;
- const heightHalf = height / 2;
- const depthHalf = depth / 2;
- const segmentWidth = width / widthSegments;
- const segmentHeight = height / heightSegments;
- const segmentDepth = depth / depthSegments;
- const vertices = [];
- let x = - widthHalf;
- let y = - heightHalf;
- let z = - depthHalf;
- for ( let i = 0; i <= widthSegments; i ++ ) {
- vertices.push( x, - heightHalf, - depthHalf, x, heightHalf, - depthHalf );
- vertices.push( x, heightHalf, - depthHalf, x, heightHalf, depthHalf );
- vertices.push( x, heightHalf, depthHalf, x, - heightHalf, depthHalf );
- vertices.push( x, - heightHalf, depthHalf, x, - heightHalf, - depthHalf );
- x += segmentWidth;
- }
- for ( let i = 0; i <= heightSegments; i ++ ) {
- vertices.push( - widthHalf, y, - depthHalf, widthHalf, y, - depthHalf );
- vertices.push( widthHalf, y, - depthHalf, widthHalf, y, depthHalf );
- vertices.push( widthHalf, y, depthHalf, - widthHalf, y, depthHalf );
- vertices.push( - widthHalf, y, depthHalf, - widthHalf, y, - depthHalf );
- y += segmentHeight;
- }
- for ( let i = 0; i <= depthSegments; i ++ ) {
- vertices.push( - widthHalf, - heightHalf, z, - widthHalf, heightHalf, z );
- vertices.push( - widthHalf, heightHalf, z, widthHalf, heightHalf, z );
- vertices.push( widthHalf, heightHalf, z, widthHalf, - heightHalf, z );
- vertices.push( widthHalf, - heightHalf, z, - widthHalf, - heightHalf, z );
- z += segmentDepth;
- }
- this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
- }
- }
- export { BoxLineGeometry };
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