10181628169

Committed 31 Jul 2024 01:56PM UTC coverage: 89.786% (+0.02%) from 89.766%

Build # 10181628169

Build Type

Pull #2374

github

Committed by

web-flow

Commit Message

Merge f024a7350 into d09120714

Pull Request Pull Request #2374: Filtre point

Run Details

2845 of 3738 branches covered (76.11%)

Branch coverage included in aggregate %.

42 of 42 new or added lines in 2 files covered. (100.0%)

16 existing lines in 2 files now uncovered.

24747 of 26993 relevant lines covered (91.68%)

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90.86

/src/Parser/LASParser.js

import * as THREE from 'three';
import { spawn, Thread, Transfer } from 'threads';

let _lazPerf;
let _thread;

function workerInstance() {
    return new Worker(
        /* webpackChunkName: "itowns_lasparser" */
        new URL('../Worker/LASLoaderWorker.js', import.meta.url),
        { type: 'module' },
    );
}

async function loader() {
    if (_thread) { return _thread; }
    _thread = await spawn(workerInstance());
    if (_lazPerf) { _thread.lazPerf(_lazPerf); }
    return _thread;
}

function buildBufferGeometry(attributes) {
    const geometry = new THREE.BufferGeometry();

    const positionBuffer = new THREE.BufferAttribute(attributes.position, 3);
    geometry.setAttribute('position', positionBuffer);

    const intensityBuffer = new THREE.BufferAttribute(attributes.intensity, 1);
    geometry.setAttribute('intensity', intensityBuffer);

    const returnNumber = new THREE.BufferAttribute(attributes.returnNumber, 1);
    geometry.setAttribute('returnNumber', returnNumber);

    const numberOfReturns = new THREE.BufferAttribute(attributes.numberOfReturns, 1);
    geometry.setAttribute('numberOfReturns', numberOfReturns);

    const classBuffer = new THREE.BufferAttribute(attributes.classification, 1);
    geometry.setAttribute('classification', classBuffer);

    const pointSourceID = new THREE.BufferAttribute(attributes.pointSourceID, 1);
    geometry.setAttribute('pointSourceID', pointSourceID);


    // const occurrences = attributes.classification.reduce(
    //     // eslint-disable-next-line no-return-assign
    //     (acc, curr) => ((acc[curr] ? ++acc[curr] : acc[curr] = 1, acc)), {});
    // console.log(occurrences);

    if (attributes.color) {
        const colorBuffer = new THREE.BufferAttribute(attributes.color, 4, true);
        geometry.setAttribute('color', colorBuffer);
    }
    const scanAngle = new THREE.BufferAttribute(attributes.scanAngle, 1);
    geometry.setAttribute('scanAngle', scanAngle);

    geometry.userData.origin = new THREE.Vector3().fromArray(attributes.origin);

    return geometry;
}

/** The LASParser module provides a [parse]{@link
 * module:LASParser.parse} method that takes a LAS or LAZ (LASZip) file in, and
 * gives a `THREE.BufferGeometry` containing all the necessary attributes to be
 * displayed in iTowns. It uses the
 * [copc.js](https://github.com/connormanning/copc.js/) library.
 *
 * @module LASParser
 */
export default {
    /*
     * Set the laz-perf decoder path.
     * @param {string} path - path to `laz-perf.wasm` folder.
     */
    enableLazPerf(path) {
        if (!path) {
            throw new Error('Path to laz-perf is mandatory');
        }
        _lazPerf = path;
    },

    /**
     * Terminate all worker instances.
     * @returns {Promise<void>}
     */
    terminate() {
        const currentThread = _thread;
        _thread = undefined;
        return Thread.terminate(currentThread);
    },

    /**
     * Parses a chunk of a LAS or LAZ (LASZip) and returns the corresponding
     * `THREE.BufferGeometry`.
     *
     * @param {ArrayBuffer} data - The file content to parse.
     * @param {Object} options
     * @param {Object} options.in - Options to give to the parser.
     * @param {number} options.in.pointCount - Number of points encoded in this
     * data chunk.
     * @param {Object} options.in.header - Partial LAS file header.
     * @param {number} options.in.header.pointDataRecordFormat - Type of Point
     * Data Record contained in the LAS file.
     * @param {number} options.in.header.pointDataRecordLength - Size (in bytes)
     * of the Point Data Record.
     * @param {Object} [options.eb] - Extra bytes LAS VLRs headers.
     * @param { 8 | 16 } [options.in.colorDepth] - Color depth (in bits).
     * Defaults to 8 bits for LAS 1.2 and 16 bits for later versions
     * (as mandatory by the specification)
     *
     * @return {Promise<THREE.BufferGeometry>} A promise resolving with a
     * `THREE.BufferGeometry`.
     */
    async parseChunk(data, options = {}) {
        const lasLoader = await loader();
        const parsedData = await lasLoader.parseChunk(Transfer(data), {
            pointCount: options.in.pointCount,
            header: options.in.header,
            eb: options.eb,
            colorDepth: options.in.colorDepth,
        });

        const geometry = buildBufferGeometry(parsedData.attributes);
        geometry.computeBoundingBox();
        return geometry;
    },

    /**
     * Parses a LAS file or a LAZ (LASZip) file and return the corresponding
     * `THREE.BufferGeometry`.
     *
     * @param {ArrayBuffer} data - The file content to parse.
     * @param {Object} [options]
     * @param {Object} [options.in] - Options to give to the parser.
     * @param { 8 | 16 } [options.in.colorDepth] - Color depth (in bits).
     * Defaults to 8 bits for LAS 1.2 and 16 bits for later versions
     * (as mandatory by the specification)
     *
     * @return {Promise} A promise resolving with a `THREE.BufferGeometry`. The
     * header of the file is contained in `userData`.
     */
    async parse(data, options = {}) {
        if (options.out?.skip) {
            console.warn("Warning: options 'skip' not supported anymore");
        }

        const input = options.in;

        const lasLoader = await loader();
        const parsedData = await lasLoader.parseFile(Transfer(data), {
            colorDepth: input?.colorDepth,
        });

        const geometry = buildBufferGeometry(parsedData.attributes);
        geometry.userData.header = parsedData.header;
        geometry.computeBoundingBox();
        return geometry;
    },
};

1	import * as THREE from 'three';	1✔
2	import { spawn, Thread, Transfer } from 'threads';	1✔
3		1✔
4	let _lazPerf;	1✔
5	let _thread;	1✔
6		3✔
7	function workerInstance() {	3✔
8	return new Worker(	3✔
9	/* webpackChunkName: "itowns_lasparser" */	3✔
10	new URL('../Worker/LASLoaderWorker.js', import.meta.url),	3✔
11	{ type: 'module' },	1✔
12	);	3✔
13	}	3✔
14		3✔
15	async function loader() {	3!
16	if (_thread) { return _thread; }	3✔
17	_thread = await spawn(workerInstance());	3✔
18	if (_lazPerf) { _thread.lazPerf(_lazPerf); }	1✔
19	return _thread;	2✔
20	}	2✔
21		2✔
22	function buildBufferGeometry(attributes) {	2✔
23	const geometry = new THREE.BufferGeometry();	2✔
24		2✔
25	const positionBuffer = new THREE.BufferAttribute(attributes.position, 3);	2✔
26	geometry.setAttribute('position', positionBuffer);	2✔
27		2✔
28	const intensityBuffer = new THREE.BufferAttribute(attributes.intensity, 1);	2✔
29	geometry.setAttribute('intensity', intensityBuffer);	2✔
30		2✔
31	const returnNumber = new THREE.BufferAttribute(attributes.returnNumber, 1);	2✔
32	geometry.setAttribute('returnNumber', returnNumber);	2✔
33		2✔
34	const numberOfReturns = new THREE.BufferAttribute(attributes.numberOfReturns, 1);	2✔
35	geometry.setAttribute('numberOfReturns', numberOfReturns);	2✔
36		2✔
37	const classBuffer = new THREE.BufferAttribute(attributes.classification, 1);	2✔
38	geometry.setAttribute('classification', classBuffer);	2✔
39		2✔
40	const pointSourceID = new THREE.BufferAttribute(attributes.pointSourceID, 1);	2✔
41	geometry.setAttribute('pointSourceID', pointSourceID);	2✔
42		2✔
43		2✔
44	// const occurrences = attributes.classification.reduce(	2✔
45	// // eslint-disable-next-line no-return-assign	2✔
46	// (acc, curr) => ((acc[curr] ? ++acc[curr] : acc[curr] = 1, acc)), {});	2✔
47	// console.log(occurrences);	1✔
48		1✔
49	if (attributes.color) {	1✔
50	const colorBuffer = new THREE.BufferAttribute(attributes.color, 4, true);	2✔
51	geometry.setAttribute('color', colorBuffer);	2✔
52	}	2✔
53	const scanAngle = new THREE.BufferAttribute(attributes.scanAngle, 1);	2✔
54	geometry.setAttribute('scanAngle', scanAngle);	2✔
55		2✔
56	geometry.userData.origin = new THREE.Vector3().fromArray(attributes.origin);	1✔
57		1✔
58	return geometry;	1✔
59	}	1✔
60		1✔
61	/** The LASParser module provides a [parse]{@link	1✔
62	* module:LASParser.parse} method that takes a LAS or LAZ (LASZip) file in, and	1✔
63	* gives a `THREE.BufferGeometry` containing all the necessary attributes to be	1✔
64	* displayed in iTowns. It uses the	1✔
65	* [copc.js](https://github.com/connormanning/copc.js/) library.	1✔
66	*	1✔
67	* @module LASParser	1✔
68	*/	1✔
69	export default {	1✔
70	/*	1✔
71	* Set the laz-perf decoder path.	1✔
72	* @param {string} path - path to `laz-perf.wasm` folder.	2!
UNCOV 73	*/	×
74	enableLazPerf(path) {	2✔
75	if (!path) {	1✔
76	throw new Error('Path to laz-perf is mandatory');	1✔
77	}	1✔
78	_lazPerf = path;	3✔
79	},	3✔
80		3✔
81	/**	3✔
82	* Terminate all worker instances.	3✔
83	* @returns {Promise<void>}	3✔
84	*/	1✔
85	terminate() {	1✔
86	const currentThread = _thread;	1✔
87	_thread = undefined;	1✔
88	return Thread.terminate(currentThread);	1✔
89	},	1✔
90		1✔
91	/**	1✔
92	* Parses a chunk of a LAS or LAZ (LASZip) and returns the corresponding	1✔
93	* `THREE.BufferGeometry`.	1✔
94	*	1✔
95	* @param {ArrayBuffer} data - The file content to parse.	1✔
96	* @param {Object} options	1✔
97	* @param {Object} options.in - Options to give to the parser.	1✔
98	* @param {number} options.in.pointCount - Number of points encoded in this	1✔
99	* data chunk.	1✔
100	* @param {Object} options.in.header - Partial LAS file header.	1✔
101	* @param {number} options.in.header.pointDataRecordFormat - Type of Point	1✔
102	* Data Record contained in the LAS file.	1✔
103	* @param {number} options.in.header.pointDataRecordLength - Size (in bytes)	1✔
104	* of the Point Data Record.	1✔
105	* @param {Object} [options.eb] - Extra bytes LAS VLRs headers.	1✔
106	* @param { 8 \| 16 } [options.in.colorDepth] - Color depth (in bits).	1✔
107	* Defaults to 8 bits for LAS 1.2 and 16 bits for later versions	1✔
108	* (as mandatory by the specification)	×
109	*	×
110	* @return {Promise<THREE.BufferGeometry>} A promise resolving with a	×
111	* `THREE.BufferGeometry`.	×
112	*/	×
UNCOV 113	async parseChunk(data, options = {}) {	×
UNCOV 114	const lasLoader = await loader();	×
UNCOV 115	const parsedData = await lasLoader.parseChunk(Transfer(data), {	×
UNCOV 116	pointCount: options.in.pointCount,	×
UNCOV 117	header: options.in.header,	×
UNCOV 118	eb: options.eb,	×
119	colorDepth: options.in.colorDepth,	1✔
120	});	1✔
121		1✔
122	const geometry = buildBufferGeometry(parsedData.attributes);	1✔
123	geometry.computeBoundingBox();	1✔
124	return geometry;	1✔
125	},	1✔
126		1✔
127	/**	1✔
128	* Parses a LAS file or a LAZ (LASZip) file and return the corresponding	1✔
129	* `THREE.BufferGeometry`.	1✔
130	*	1✔
131	* @param {ArrayBuffer} data - The file content to parse.	1✔
132	* @param {Object} [options]	1✔
133	* @param {Object} [options.in] - Options to give to the parser.	1✔
134	* @param { 8 \| 16 } [options.in.colorDepth] - Color depth (in bits).	1✔
135	* Defaults to 8 bits for LAS 1.2 and 16 bits for later versions	1✔
136	* (as mandatory by the specification)	3✔
137	*	3✔
138	* @return {Promise} A promise resolving with a `THREE.BufferGeometry`. The	3✔
139	* header of the file is contained in `userData`.	3!
UNCOV 140	*/	×
141	async parse(data, options = {}) {	3✔
142	if (options.out?.skip) {	3✔
143	console.warn("Warning: options 'skip' not supported anymore");	3✔
144	}	3✔
145		3✔
146	const input = options.in;	3✔
147		1✔
148	const lasLoader = await loader();	3✔
149	const parsedData = await lasLoader.parseFile(Transfer(data), {	2✔
150	colorDepth: input?.colorDepth,	2✔
151	});	2✔
152		2✔
153	const geometry = buildBufferGeometry(parsedData.attributes);	1✔
154	geometry.userData.header = parsedData.header;	1✔
155	geometry.computeBoundingBox();	1✔
156	return geometry;	1✔
157	},	1✔
158	};	1✔

iTowns / itowns / 10181628169

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