Best JavaScript code snippet using wpt
webxr_math_utils.js
Source:webxr_math_utils.js
1// |matrix| - Float32Array, |input| - point-like dict (must have x, y, z, w)2let transform_point_by_matrix = function(matrix, input) {3 return {4 x : matrix[0] * input.x + matrix[4] * input.y + matrix[8] * input.z + matrix[12] * input.w,5 y : matrix[1] * input.x + matrix[5] * input.y + matrix[9] * input.z + matrix[13] * input.w,6 z : matrix[2] * input.x + matrix[6] * input.y + matrix[10] * input.z + matrix[14] * input.w,7 w : matrix[3] * input.x + matrix[7] * input.y + matrix[11] * input.z + matrix[15] * input.w,8 };9}10// Creates a unit-length quaternion.11// |input| - point-like dict (must have x, y, z, w)12let normalize_quaternion = function(input) {13 const length_squared = input.x * input.x + input.y * input.y + input.z * input.z + input.w * input.w;14 const length = Math.sqrt(length_squared);15 return {x : input.x / length, y : input.y / length, z : input.z / length, w : input.w / length};16}17// |input| - point-like dict (must have x, y, z, w)18let conjugate_quaternion = function(input) {19 return {x : -input.x, y : -input.y, z : -input.z, w : input.w};20}21let multiply_quaternions = function(q1, q2) {22 return {23 w : q1.w * q2.w - q1.x * q2.x - q1.y * q2.y - q1.z * q2.z,24 x : q1.w * q2.x + q1.x * q2.w + q1.y * q2.z - q1.z * q2.y,25 y : q1.w * q2.y - q1.x * q2.z + q1.y * q2.w + q1.z * q2.x,26 z : q1.w * q2.z + q1.x * q2.y - q1.y * q2.x + q1.z * q2.w,27 }28}29// |point| - point-like dict (must have x, y, z, w)30let normalize_perspective = function(point) {31 if(point.w == 0 || point.w == 1) return point;32 return {33 x : point.x / point.w,34 y : point.y / point.w,35 z : point.z / point.w,36 w : 137 };38}39// |quaternion| - point-like dict (must have x, y, z, w),40// |input| - point-like dict (must have x, y, z, w)41let transform_point_by_quaternion = function(quaternion, input) {42 const q_normalized = normalize_quaternion(quaternion);43 const q_conj = conjugate_quaternion(q_normalized);44 const p_in = normalize_perspective(input);45 // construct a quaternion out of the point (take xyz & zero the real part).46 const p = {x : p_in.x, y : p_in.y, z : p_in.z, w : 0};47 // transform the input point48 const p_mul = multiply_quaternions( q_normalized, multiply_quaternions(p, q_conj) );49 // add back the w component of the input50 return { x : p_mul.x, y : p_mul.y, z : p_mul.z, w : p_in.w };...
kineval_quaternion.js
Source:kineval_quaternion.js
1//////////////////////////////////////////////////2///// QUATERNION TRANSFORM ROUTINES 3//////////////////////////////////////////////////4 // STENCIL: reference quaternion code has the following functions:5 // quaternion_from_axisangle6 // quaternion_normalize7 // quaternion_to_rotation_matrix8 // quaternion_multiply9function quaternion_from_axisangle(theta,u) {10 return [ Math.cos(theta/2), u[0]*Math.sin(theta/2), 11 u[1]*Math.sin(theta/2), u[2]*Math.sin(theta/2)];12}13function quaternion_normalize (q) { 14 var norm = Math.sqrt(q[0]*q[0]+q[1]*q[1]+q[2]*q[2]+q[3]*q[3]);15 var q_normalized= [];16 q_normalized[0]=q[0]/norm;17 q_normalized[1]=q[1]/norm;18 q_normalized[2]=q[2]/norm;19 q_normalized[3]=q[3]/norm;20 return q_normalized;21}22function quaternion_to_rotation_matrix(q){23 var temp = generate_identity(4);24 temp[0][0] = q[0]*q[0] + q[1]*q[1] - q[2]*q[2] - q[3]*q[3];25 temp[0][1] = 2*( q[1]*q[2] - q[0]*q[3] );26 temp[0][2] = 2*( q[0]*q[2] + q[1]*q[3] );27 temp[1][0] = 2*( q[1]*q[2] + q[0]*q[3] );28 temp[1][1] = q[0]*q[0] - q[1]*q[1] + q[2]*q[2] - q[3]*q[3];29 temp[1][2] = 2*( q[3]*q[2] - q[0]*q[1] );30 temp[2][0] = 2*( q[1]*q[3] - q[0]*q[2] );31 temp[2][1] = 2*( q[1]*q[0] + q[2]*q[3] );32 temp[2][2] = q[0]*q[0] - q[1]*q[1] - q[2]*q[2] + q[3]*q[3];33 return temp;34}35function quaternion_multiply (q1,q2) { 36 var q = new Array(q1.length);37 var a = q1[0];38 var b = q1[1];39 var c = q1[2];40 var d = q1[3];41 var e = q2[0];42 var f = q2[1];43 var g = q2[2];44 var h = q2[3];45 q = [(a*e-b*f-c*g-d*h),(a*f+b*e+c*h-d*g),(a*g-b*h+c*e+d*f),(a*h+b*g-c*f+d*e)];46 return q;...
Using AI Code Generation
1var wpt = require('wpt');2wpt.q_normalized('www.google.com', 'Chrome', function(error, data) {3 if (error) {4 console.log(error);5 } else {6 console.log(data);7 }8});9var wpt = require('wpt');10wpt.q_normalized('www.google.com', 'Chrome', function(error, data) {11 if (error) {12 console.log(error);13 } else {14 console.log(data);15 }16});17var wpt = require('wpt');18wpt.q_normalized('www.google.com', 'Chrome', function(error, data) {19 if (error) {20 console.log(error);21 } else {22 console.log(data);23 }24});25var wpt = require('wpt');26wpt.q_normalized('www.google.com', 'Chrome', function(error, data) {27 if (error) {28 console.log(error);29 } else {30 console.log(data);31 }32});33var wpt = require('wpt');34wpt.q_normalized('www.google.com', 'Chrome', function(error, data) {35 if (error) {36 console.log(error);37 } else {38 console.log(data);39 }40});41var wpt = require('wpt');42wpt.q_normalized('www.google.com', 'Chrome', function(error, data) {43 if (error) {44 console.log(error);45 } else {46 console.log(data);47 }48});49var wpt = require('wpt');50wpt.q_normalized('www.google.com', 'Chrome', function(error, data) {51 if (error) {52 console.log(error);53 } else {54 console.log(data);55 }56});57var wpt = require('wpt');58wpt.q_normalized('www.google.com', 'Chrome',
Using AI Code Generation
1var wptools = require('wptools');2var query = wptools.page('Barack Obama');3query.get(function(err, resp) {4 console.log(resp);5});6 if (err) throw err;
Using AI Code Generation
1var wpt = require('wpt-qa');2 if (err) {3 console.log(err);4 } else {5 console.log(data);6 }7});8var wpt = require('wpt-qa');9 if (err) {10 console.log(err);11 } else {12 console.log(data);13 }14});15var wpt = require('wpt-qa');16 if (err) {17 console.log(err);18 } else {19 console.log(data);20 }21});22var wpt = require('wpt-qa');23 if (err) {24 console.log(err);25 } else {26 console.log(data);27 }28});29var wpt = require('wpt-qa');30 if (err) {31 console.log(err);32 } else {33 console.log(data);34 }35});36var wpt = require('wpt-qa');37 if (err) {38 console.log(err);39 } else {40 console.log(data);41 }42});43var wpt = require('wpt-qa');44 if (err) {45 console.log(err);46 } else {47 console.log(data);48 }49});
Using AI Code Generation
1console.log(wptoolbox.q_normalized(0.05, 0.1, 0.05, 0.1));2console.log(wptoolbox.q_normalized(0.05, 0.1, 0.05, 0.1));3console.log(wptoolbox.q_normalized(0.05, 0.1, 0.05, 0.1));4console.log(wptoolbox.q_normalized(0.05, 0.1, 0.05, 0.1));5console.log(wptoolbox.q_normalized(0.05, 0.1, 0.05, 0.1));6console.log(wptoolbox.q_normalized(0.05, 0.1, 0.05, 0.1));7console.log(wptoolbox.q_normalized(0.05, 0.1, 0.05, 0.1));8console.log(wptoolbox.q_normalized(0.05, 0.1, 0.05, 0.1));9console.log(wptoolbox.q_normalized(0.05, 0.1, 0.05, 0.1));10console.log(wptoolbox.q_normalized(0.05, 0.1, 0.05, 0.1));
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