utils-three-js

A utility library for working with BufferGeometry in Three.js. I have created this library to make it easier to work with BufferGeometry in Three.js.

Installation

You can install utils-three-js using npm:

    npm install utils-three-js

Usage

import { BufferGeoUtils } from 'utils-three-js';

import * as THREE from 'three';

// Create a BufferGeometry

const geometry = new THREE.BoxGeometry();

// Perform operations on the geometry

const positionArray = BufferGeoUtils.getPositionArray(geometry);

const normalArray = BufferGeoUtils.getNormalArray(geometry);

const uvArray = BufferGeoUtils.getUVArray(geometry);

const facePoints = BufferGeoUtils.getFacePoints(geometry,10)

// ...and more

API Documentation

BufferGeoUtils

Method	Description	Parameters	Returns
isBufferGeometry	Checks if the given geometry is a BufferGeometry.	geometry (THREE.BufferGeometry)	Boolean
getPositionArray	Returns the position array of the geometry.	geometry (THREE.BufferGeometry)	Array
getNormalArray	Returns the normal array of the geometry.	geometry (THREE.BufferGeometry)	Array
getUVArray	Returns the UV array of the geometry.	geometry (THREE.BufferGeometry)	Array
getIndicesArray	Returns the indices array of the geometry.	geometry (THREE.BufferGeometry)	Array
getNumberOfFaces	Returns the number of faces in the geometry.	geometry (THREE.BufferGeometry)	Number
getNumberOfVertices	Returns the number of vertices in the geometry.	geometry (THREE.BufferGeometry)	Number
getPoint	Returns the point at the given index.	geometry (THREE.BufferGeometry), index (Number)	THREE.Vector3
getFacePointIndices	Returns the indices of the points of the face at the given index.	geometry (THREE.BufferGeometry), faceIndex (Number)	Array[Number]
getFacePoints	Returns the points of the face at the given index.	geometry (THREE.BufferGeometry), faceIndex (Number)	Array[THREE.Vector3]
getTriangleArea	Returns the area of the triangle with the given points.	p1 (THREE.Vector3), p2 (THREE.Vector3), p3 (THREE.Vector3)	Number
getSurfaceArea	Returns the surface area of the geometry.	geometry (THREE.BufferGeometry)	Number

Object3DUtils

Method	Description	Parameters	Returns
getAllMeshes	Returns all meshes of the given object.	object (THREE.Object3D)	Array[THREE.Mesh]
unGroupAllMeshes	Un-groups all meshes of the given object.(Scaling may not work) If removeMeshTransformation is true, the transformation of the mesh is removed and applied to the geometry	object (THREE.Object3D), removeMeshTransformation (Boolean) (default value is false)	Array[THREE.Mesh]
deleteMeshWithData	Deletes the mesh and its geometry, material, textures	mesh (THREE.Mesh)	Boolean
deleteObjectWithData	Deletes the object and its geometry, material, textures. warning - make sure that they are not used by any other mesh	object (THREE.Object3D)	Boolean
getBoundingBox	Returns the bounding box of the object.	object (THREE.Object3D), inLocalSpace (Boolean) (Optional)(default value is false)	THREE.Box3
getClassInstanceObjects	Returns all objects of the object with the given class.	object (THREE.Object3D), objectClass (any)	Array<objectClass>
isObject	Checks if the given object is an instance of THREE.Object3D.	object (THREE.Object3D)	Boolean
isMesh	Checks if the given object is an instance of THREE.Mesh.	object (THREE.Object3D)	Boolean

UtilsMath

Method	Description	Parameters	Returns
removeFloatingPointError	Removes the floating point error of the given value.	value (Number), decimals (Number) (Optional)(default value is 2)	Number
removeFloatingPointErrorVec3	Removes the floating point error of the given vector.	inVec (THREE.Vector3), inDecimals (Number) (Optional)(default value is 2)	THREE.Vector3

License

This project is licensed under the MIT License.