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How to use te method in wpt

Best JavaScript code snippet using wpt

Matrix4.js

Source:Matrix4.js

1import { Vector3 } from './Vector3';2function Matrix4(){3    this.elements = [4        1, 0, 0, 0,5        0, 1, 0, 0,6        0, 0, 1, 0,7        0, 0, 0, 18    ];9}10Object.assign( Matrix4.prototype, {11    isMatrix4: true,12    set: function ( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) {13        var te = this.elements;14        te[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14;15        te[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24;16        te[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34;17        te[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44;18        return this;19    },20    identity: function () {21        this.set(22            1, 0, 0, 0,23            0, 1, 0, 0,24            0, 0, 1, 0,25            0, 0, 0, 126        );27        return this;28    },29    clone: function () {30        return new this.constructor().fromArray( this.elements );31    },32    copy: function ( m ) {33        var te = this.elements;34        var me = m.elements;35        for ( var i = 0; i < 16; i ++ ) te[ i ] = me[ i ];36        return this;37    },38    //å¤å¶ç©éµå¹³ç§»ä¿¡æ¯ï¼å°±æ¯ä»¿å°ç©éµçç¬¬ååæ°æ®39    copyPosition: function ( m ) {40        var te = this.elements, me = m.elements;41        te[ 12 ] = me[ 12 ];42        te[ 13 ] = me[ 13 ];43        te[ 14 ] = me[ 14 ];44        return this;45    },46    //æåç©éµä¸çä¸ä¸ªåºåéï¼åå«å°±æ¯ç©éµçç¬¬ä¸äºä¸åï¼è¿ééè¦çè§£ç©éµä¸åºåéçæ¦å¿µã47    extractBasis: function ( xAxis, yAxis, zAxis ) {48        xAxis.setFromMatrixColumn( this, 0 );49        yAxis.setFromMatrixColumn( this, 1 );50        zAxis.setFromMatrixColumn( this, 2 );51        return this;52    },53    //ç´æ¥ç»å®ä¸ä¸ªåºåéæ¥å®ä¹ç©éµ54    makeBasis: function ( xAxis, yAxis, zAxis ) {55        this.set(56            xAxis.x, yAxis.x, zAxis.x, 0,57            xAxis.y, yAxis.y, zAxis.y, 0,58            xAxis.z, yAxis.z, zAxis.z, 0,59            0,       0,       0,       160        );61        return this;62    },63    //æåä¸ç»´æè½¬åéå°æ¬ç©éµï¼å°ç®æ ç©éµçä¸ä¸ªåºåéæ åå(é¤ä»¥åéé¿åº¦)åèµå¼å°æ¬ç©éµä¸ã64    extractRotation: function () {65        var v1 = new Vector3();66        return function extractRotation( m ) {67            var te = this.elements;68            var me = m.elements;69            var scaleX = 1 / v1.setFromMatrixColumn( m, 0 ).length();70            var scaleY = 1 / v1.setFromMatrixColumn( m, 1 ).length();71            var scaleZ = 1 / v1.setFromMatrixColumn( m, 2 ).length();72            te[ 0 ] = me[ 0 ] * scaleX;73            te[ 1 ] = me[ 1 ] * scaleX;74            te[ 2 ] = me[ 2 ] * scaleX;75            te[ 4 ] = me[ 4 ] * scaleY;76            te[ 5 ] = me[ 5 ] * scaleY;77            te[ 6 ] = me[ 6 ] * scaleY;78            te[ 8 ] = me[ 8 ] * scaleZ;79            te[ 9 ] = me[ 9 ] * scaleZ;80            te[ 10 ] = me[ 10 ] * scaleZ;81            return this;82        };83    }(),84    //éè¿æ¬§æè§è·å¾æè½¬ç©éµ85    makeRotationFromEuler: function ( euler ) {86        if ( ( euler && euler.isEuler ) === false ) {87            console.error( 'THREE.Matrix: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' );88        }89        var te = this.elements;90        var x = euler.x, y = euler.y, z = euler.z;91        var a = Math.cos( x ), b = Math.sin( x );92        var c = Math.cos( y ), d = Math.sin( y );93        var e = Math.cos( z ), f = Math.sin( z );94        if ( euler.order === 'XYZ' ) {95            var ae = a * e, af = a * f, be = b * e, bf = b * f;96            te[ 0 ] = c * e;97            te[ 4 ] = - c * f;98            te[ 8 ] = d;99            te[ 1 ] = af + be * d;100            te[ 5 ] = ae - bf * d;101            te[ 9 ] = - b * c;102            te[ 2 ] = bf - ae * d;103            te[ 6 ] = be + af * d;104            te[ 10 ] = a * c;105        } else if ( euler.order === 'YXZ' ) {106            var ce = c * e, cf = c * f, de = d * e, df = d * f;107            te[ 0 ] = ce + df * b;108            te[ 4 ] = de * b - cf;109            te[ 8 ] = a * d;110            te[ 1 ] = a * f;111            te[ 5 ] = a * e;112            te[ 9 ] = - b;113            te[ 2 ] = cf * b - de;114            te[ 6 ] = df + ce * b;115            te[ 10 ] = a * c;116        } else if ( euler.order === 'ZXY' ) {117            var ce = c * e, cf = c * f, de = d * e, df = d * f;118            te[ 0 ] = ce - df * b;119            te[ 4 ] = - a * f;120            te[ 8 ] = de + cf * b;121            te[ 1 ] = cf + de * b;122            te[ 5 ] = a * e;123            te[ 9 ] = df - ce * b;124            te[ 2 ] = - a * d;125            te[ 6 ] = b;126            te[ 10 ] = a * c;127        } else if ( euler.order === 'ZYX' ) {128            var ae = a * e, af = a * f, be = b * e, bf = b * f;129            te[ 0 ] = c * e;130            te[ 4 ] = be * d - af;131            te[ 8 ] = ae * d + bf;132            te[ 1 ] = c * f;133            te[ 5 ] = bf * d + ae;134            te[ 9 ] = af * d - be;135            te[ 2 ] = - d;136            te[ 6 ] = b * c;137            te[ 10 ] = a * c;138        } else if ( euler.order === 'YZX' ) {139            var ac = a * c, ad = a * d, bc = b * c, bd = b * d;140            te[ 0 ] = c * e;141            te[ 4 ] = bd - ac * f;142            te[ 8 ] = bc * f + ad;143            te[ 1 ] = f;144            te[ 5 ] = a * e;145            te[ 9 ] = - b * e;146            te[ 2 ] = - d * e;147            te[ 6 ] = ad * f + bc;148            te[ 10 ] = ac - bd * f;149        } else if ( euler.order === 'XZY' ) {150            var ac = a * c, ad = a * d, bc = b * c, bd = b * d;151            te[ 0 ] = c * e;152            te[ 4 ] = - f;153            te[ 8 ] = d * e;154            te[ 1 ] = ac * f + bd;155            te[ 5 ] = a * e;156            te[ 9 ] = ad * f - bc;157            te[ 2 ] = bc * f - ad;158            te[ 6 ] = b * e;159            te[ 10 ] = bd * f + ac;160        }161        // last column162        te[ 3 ] = 0;163        te[ 7 ] = 0;164        te[ 11 ] = 0;165        // bottom row166        te[ 12 ] = 0;167        te[ 13 ] = 0;168        te[ 14 ] = 0;169        te[ 15 ] = 1;170        return this;171    },172    //éè¿ååæ°è·å¾æè½¬ç©éµï¼æ¨å¯¼è¿ç¨å¯ä»¥baidu173    makeRotationFromQuaternion: function ( q ) {174        var te = this.elements;175        var x = q.x, y = q.y, z = q.z, w = q.w;176        var x2 = x + x, y2 = y + y, z2 = z + z;177        var xx = x * x2, xy = x * y2, xz = x * z2;178        var yy = y * y2, yz = y * z2, zz = z * z2;179        var wx = w * x2, wy = w * y2, wz = w * z2;180        te[ 0 ] = 1 - ( yy + zz );181        te[ 4 ] = xy - wz;182        te[ 8 ] = xz + wy;183        te[ 1 ] = xy + wz;184        te[ 5 ] = 1 - ( xx + zz );185        te[ 9 ] = yz - wx;186        te[ 2 ] = xz - wy;187        te[ 6 ] = yz + wx;188        te[ 10 ] = 1 - ( xx + yy );189        // last column190        te[ 3 ] = 0;191        te[ 7 ] = 0;192        te[ 11 ] = 0;193        // bottom row194        te[ 12 ] = 0;195        te[ 13 ] = 0;196        te[ 14 ] = 0;197        te[ 15 ] = 1;198        return this;199    },200    //è¿éæ¯ä¸ä¸ªå¯ä»¥æ¯è¾æ¸æ°çå°åºåéåæè½¬ç©éµå³ç³»çå°æ¹ï¼åç®åºzè½´åºåéï¼åç®åºxè½´åºåéï¼æåæ¯yè½´ï¼ç¶ååºåéç»åææè½¬ç©éµ201    lookAt: function () {202        var x = new Vector3();203        var y = new Vector3();204        var z = new Vector3();205        return function lookAt( eye, target, up ) {206            var te = this.elements;207            z.subVectors( eye, target ).normalize();208            if ( z.lengthSq() === 0 ) {209                z.z = 1;210            }211            x.crossVectors( up, z ).normalize();212            if ( x.lengthSq() === 0 ) {213                z.z += 0.0001;214                x.crossVectors( up, z ).normalize();215            }216            y.crossVectors( z, x );217            te[ 0 ] = x.x; te[ 4 ] = y.x; te[ 8 ] = z.x;218            te[ 1 ] = x.y; te[ 5 ] = y.y; te[ 9 ] = z.y;219            te[ 2 ] = x.z; te[ 6 ] = y.z; te[ 10 ] = z.z;220            return this;221        };222    }(),223    //ç©éµä¹æ³224    multiply: function ( m ) {225        return this.multiplyMatrices( this, m );226    },227    //ç©éµå·¦ä¹228    premultiply: function ( m ) {229        return this.multiplyMatrices( m, this );230    },231    //ç©éµç¸ä¹232    multiplyMatrices: function ( a, b ) {233        var ae = a.elements;234        var be = b.elements;235        var te = this.elements;236        var a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ];237        var a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ];238        var a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ];239        var a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ];240        var b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ];241        var b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ];242        var b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ];243        var b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ];244        te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;245        te[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;246        te[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;247        te[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;248        te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;249        te[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;250        te[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;251        te[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;252        te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;253        te[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;254        te[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;255        te[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;256        te[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;257        te[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;258        te[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;259        te[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;260        return this;261    },262    //ç©éµä¹ä»¥æ é263    multiplyScalar: function ( s ) {264        var te = this.elements;265        te[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s;266        te[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s;267        te[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s;268        te[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s;269        return this;270    },271    //åç»´ç©éµè¡åå¼è®¡ç®272    determinant: function () {273        var te = this.elements;274        var n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ];275        var n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ];276        var n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ];277        var n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ];278        return (279            n41 * (280                + n14 * n23 * n32281                - n13 * n24 * n32282                - n14 * n22 * n33283                + n12 * n24 * n33284                + n13 * n22 * n34285                - n12 * n23 * n34286            ) +287            n42 * (288                + n11 * n23 * n34289                - n11 * n24 * n33290                + n14 * n21 * n33291                - n13 * n21 * n34292                + n13 * n24 * n31293                - n14 * n23 * n31294            ) +295            n43 * (296                + n11 * n24 * n32297                - n11 * n22 * n34298                - n14 * n21 * n32299                + n12 * n21 * n34300                + n14 * n22 * n31301                - n12 * n24 * n31302            ) +303            n44 * (304                - n13 * n22 * n31305                - n11 * n23 * n32306                + n11 * n22 * n33307                + n13 * n21 * n32308                - n12 * n21 * n33309                + n12 * n23 * n31310            )311        );312    },313    //ç©éµè½¬ç½®314    transpose: function () {315        var te = this.elements;316        var tmp;317        tmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp;318        tmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp;319        tmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp;320        tmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp;321        tmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp;322        tmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp;323        return this;324    },325    //è®¾ç½®ä½ç§»326    setPosition: function ( v ) {327        var te = this.elements;328        te[ 12 ] = v.x;329        te[ 13 ] = v.y;330        te[ 14 ] = v.z;331        return this;332    },333    //è®¡ç®éç©éµ334    getInverse: function ( m ) {335        var te = this.elements,336            me = m.elements,337            n11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ], n41 = me[ 3 ],338            n12 = me[ 4 ], n22 = me[ 5 ], n32 = me[ 6 ], n42 = me[ 7 ],339            n13 = me[ 8 ], n23 = me[ 9 ], n33 = me[ 10 ], n43 = me[ 11 ],340            n14 = me[ 12 ], n24 = me[ 13 ], n34 = me[ 14 ], n44 = me[ 15 ],341            t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44,342            t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44,343            t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44,344            t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;345        var det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;346        if ( det === 0 ) return this.identity();347        var detInv = 1 / det;348        te[ 0 ] = t11 * detInv;349        te[ 1 ] = ( n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44 ) * detInv;350        te[ 2 ] = ( n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44 ) * detInv;351        te[ 3 ] = ( n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43 ) * detInv;352        te[ 4 ] = t12 * detInv;353        te[ 5 ] = ( n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44 ) * detInv;354        te[ 6 ] = ( n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44 ) * detInv;355        te[ 7 ] = ( n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43 ) * detInv;356        te[ 8 ] = t13 * detInv;357        te[ 9 ] = ( n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44 ) * detInv;358        te[ 10 ] = ( n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44 ) * detInv;359        te[ 11 ] = ( n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43 ) * detInv;360        te[ 12 ] = t14 * detInv;361        te[ 13 ] = ( n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34 ) * detInv;362        te[ 14 ] = ( n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34 ) * detInv;363        te[ 15 ] = ( n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33 ) * detInv;364        return this;365    },366    //ç©éµä¹ä»¥æ é367    scale: function ( v ) {368        var te = this.elements;369        var x = v.x, y = v.y, z = v.z;370        te[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z;371        te[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z;372        te[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z;373        te[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z;374        return this;375    },376    //è·å¾ä¸ç»´åºåæ ç¼©æ¾æ¯ä¾æå¤§å¼377    getMaxScaleOnAxis: function () {378        var te = this.elements;379        var scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ];380        var scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ];381        var scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ];382        return Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) );383    },384    //è®¾ç½®ä½ç§»ç©éµ385    makeTranslation: function ( x, y, z ) {386        this.set(387            1, 0, 0, x,388            0, 1, 0, y,389            0, 0, 1, z,390            0, 0, 0, 1391        );392        return this;393    },394    //è®¾ç½®xè½´æè½¬ç©éµ395    makeRotationX: function ( theta ) {396        var c = Math.cos( theta ), s = Math.sin( theta );397        this.set(398            1, 0,  0, 0,399            0, c, - s, 0,400            0, s,  c, 0,401            0, 0,  0, 1402        );403        return this;404    },405    //è®¾ç½®yè½´æè½¬ç©éµ406    makeRotationY: function ( theta ) {407        var c = Math.cos( theta ), s = Math.sin( theta );408        this.set(409            c, 0, s, 0,410            0, 1, 0, 0,411            - s, 0, c, 0,412            0, 0, 0, 1413        );414        return this;415    },416    //è®¾ç½®zè½´æè½¬ç©éµ417    makeRotationZ: function ( theta ) {418        var c = Math.cos( theta ), s = Math.sin( theta );419        this.set(420            c, - s, 0, 0,421            s,  c, 0, 0,422            0,  0, 1, 0,423            0,  0, 0, 1424        );425        return this;426    },427    //éè¿è½´è§è®¾ç½®æè½¬ç©éµ428    makeRotationAxis: function ( axis, angle ) {429        var c = Math.cos( angle );430        var s = Math.sin( angle );431        var t = 1 - c;432        var x = axis.x, y = axis.y, z = axis.z;433        var tx = t * x, ty = t * y;434        this.set(435            tx * x + c, tx * y - s * z, tx * z + s * y, 0,436            tx * y + s * z, ty * y + c, ty * z - s * x, 0,437            tx * z - s * y, ty * z + s * x, t * z * z + c, 0,438            0, 0, 0, 1439        );440        return this;441    },442    //è®¾æ½ç¼©æ¾åæ¢ç©éµ443    makeScale: function ( x, y, z ) {444        this.set(445            x, 0, 0, 0,446            0, y, 0, 0,447            0, 0, z, 0,448            0, 0, 0, 1449        );450        return this;451    },452    //è®¾ç½®åªååæ¢ç©éµ453    makeShear: function ( x, y, z ) {454        this.set(455            1, y, z, 0,456            x, 1, z, 0,457            x, y, 1, 0,458            0, 0, 0, 1459        );460        return this;461    },462    //éè¿ä½ç½®åéï¼æè½¬ååæ°ï¼ç¼©æ¾åéåå¹¶å®ä¹ä»¿å°ç©éµ463    compose: function ( position, quaternion, scale ) {464        this.makeRotationFromQuaternion( quaternion );465        this.scale( scale );466        this.setPosition( position );467        return this;468    },469    //å°æ¾å°ç©éµåè§£æä½ç½®åéï¼æè½¬ååæ°ï¼ç¼©æ¾åé470    decompose: function () {471        var vector = new Vector3();472        var matrix = new Matrix4();473        return function decompose( position, quaternion, scale ) {474            var te = this.elements;475            var sx = vector.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length();476            var sy = vector.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length();477            var sz = vector.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length();478            // if determine is negative, we need to invert one scale479            var det = this.determinant();480            if ( det < 0 ) {481                sx = - sx;482            }483            position.x = te[ 12 ];484            position.y = te[ 13 ];485            position.z = te[ 14 ];486            // scale the rotation part487            for ( var i = 0; i < 16; i ++ ) matrix.elements[ i ] = this.elements[ i ]; // at this point matrix is incomplete so we can't use .copy()488            var invSX = 1 / sx;489            var invSY = 1 / sy;490            var invSZ = 1 / sz;491            matrix.elements[ 0 ] *= invSX;492            matrix.elements[ 1 ] *= invSX;493            matrix.elements[ 2 ] *= invSX;494            matrix.elements[ 4 ] *= invSY;495            matrix.elements[ 5 ] *= invSY;496            matrix.elements[ 6 ] *= invSY;497            matrix.elements[ 8 ] *= invSZ;498            matrix.elements[ 9 ] *= invSZ;499            matrix.elements[ 10 ] *= invSZ;500            quaternion.setFromRotationMatrix( matrix );501            scale.x = sx;502            scale.y = sy;503            scale.z = sz;504            return this;505        };506    }(),507    //è®¡ç®éè§ç©éµï¼å°±æ¯æå¸¸ç¨åæ¢ä¸äººç»MVPä¸çP508    makePerspective: function ( left, right, top, bottom, near, far ) {509        var te = this.elements;510        var x = 2 * near / ( right - left );511        var y = 2 * near / ( top - bottom );512        var a = ( right + left ) / ( right - left );513        var b = ( top + bottom ) / ( top - bottom );514        var c = - ( far + near ) / ( far - near );515        var d = - 2 * far * near / ( far - near );516        te[ 0 ] = x;	te[ 4 ] = 0;	te[ 8 ] = a;	te[ 12 ] = 0;517        te[ 1 ] = 0;	te[ 5 ] = y;	te[ 9 ] = b;	te[ 13 ] = 0;518        te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = c;	te[ 14 ] = d;519        te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = - 1;	te[ 15 ] = 0;520        return this;521    },522    //è®¡ç®æ£äº¤ç©éµ523    makeOrthographic: function ( left, right, top, bottom, near, far ) {524        var te = this.elements;525        var w = 1.0 / ( right - left );526        var h = 1.0 / ( top - bottom );527        var p = 1.0 / ( far - near );528        var x = ( right + left ) * w;529        var y = ( top + bottom ) * h;530        var z = ( far + near ) * p;531        te[ 0 ] = 2 * w;te[ 4 ] = 0;	te[ 8 ] = 0;		te[ 12 ] = - x;532        te[ 1 ] = 0;	te[ 5 ] = 2 * h;te[ 9 ] = 0;		te[ 13 ] = - y;533        te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = - 2 * p;	te[ 14 ] = - z;534        te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = 0;		te[ 15 ] = 1;535        return this;536    },537    equals: function ( matrix ) {538        var te = this.elements;539        var me = matrix.elements;540        for ( var i = 0; i < 16; i ++ ) {541            if ( te[ i ] !== me[ i ] ) return false;542        }543        return true;544    },545    fromArray: function ( array, offset ) {546        if ( offset === undefined ) offset = 0;547        for( var i = 0; i < 16; i ++ ) {548            this.elements[ i ] = array[ i + offset ];549        }550        return this;551    },552    toArray: function ( array, offset ) {553        if ( array === undefined ) array = [];554        if ( offset === undefined ) offset = 0;555        var te = this.elements;556        array[ offset ] = te[ 0 ];557        array[ offset + 1 ] = te[ 1 ];558        array[ offset + 2 ] = te[ 2 ];559        array[ offset + 3 ] = te[ 3 ];560        array[ offset + 4 ] = te[ 4 ];561        array[ offset + 5 ] = te[ 5 ];562        array[ offset + 6 ] = te[ 6 ];563        array[ offset + 7 ] = te[ 7 ];564        array[ offset + 8 ]  = te[ 8 ];565        array[ offset + 9 ]  = te[ 9 ];566        array[ offset + 10 ] = te[ 10 ];567        array[ offset + 11 ] = te[ 11 ];568        array[ offset + 12 ] = te[ 12 ];569        array[ offset + 13 ] = te[ 13 ];570        array[ offset + 14 ] = te[ 14 ];571        array[ offset + 15 ] = te[ 15 ];572        return array;573    }574});...

Using AI Code Generation

1var wpt = require('./wpt.js');2wpt.get(url, function(err, data) {3    if (err) {4        console.log(err);5    } else {6        console.log(data);7    }8});9var http = require('http');10var get = function(url, callback) {11    http.get(url, function(res) {12        var body = '';13        res.on('data', function(chunk) {14            body += chunk;15        });16        res.on('end', function() {17            callback(null, body);18        });19    }).on('error', function(e) {20        callback(e);21    });22};23module.exports.get = get;

Using AI Code Generation

1var wpt = new WebPageTest('www.webpagetest.org', 'A.0b6f1d1f0e8d3a6c7b6f3a9a3b6f1d1f');2var wpt = new WebPageTest('www.webpagetest.org', 'A.0b6f1d1f0e8d3a6c7b6f3a9a3b6f1d1f');3var options = {4};5wpt.runTest(url, options, function(err, data) {6  if (err) return console.error(err);7  console.log('Test status:', data.statusText);8  console.log('View your test at:', data.data.userUrl);9});10var wpt = new WebPageTest('www.webpagetest.org', 'A.0b6f1d1f0e8d3a6c7b6f3a9a3b6f1d1f');11var wpt = new WebPageTest('www.webpagetest.org', 'A.0b6f1d1f0e8d3a6c7b6

Using AI Code Generation

1var wpt = require('./wpt.js');2    if (err) {3        console.log(err);4    } else {5        console.log(data);6    }7});8var request = require('request');9module.exports.getWptData = function (url, callback) {10    var options = {11        headers: {12        }13    };14    request(options, function (err, res, body) {15        if (err) {16            callback(err);17        } else {18            callback(null, body);19        }20    });21};22{ [Error: getaddrinfo ENOTFOUND www.webpagetest.org www.webpagetest.org:80]23  port: 80 }24var wpt = require('./wpt.js');25    if (err) {26        console.log(err);27    } else {28        console.log(data);29    }30});31var request = require('request');32module.exports.getWptData = function (url, callback) {33    var options = {

Using AI Code Generation

1var wpt = require('wpt').create('www.webpagetest.org', 'A.1234567890abcdef1234567890abcdef');2var options = {3};4wpt.runTest(url, options, function(err, data) {5    if (err) return console.error(err);6    console.log(data);7});8var wpt = require('wpt');9wpt.create('www.webpagetest.org', 'A.1234567890abcdef1234567890abcdef')10    }, function(err, data) {11        if (err) return console.error(err);12        console.log(data);13    });14var wpt = require('wpt');15wpt.create('www.webpagetest.org', 'A.1234567890abcdef1234567890abcdef')16    }, function(err, data) {17        if (err) return console.error(err);18        console.log(data);19    });20var wpt = require('wpt');21wpt.create('www.webpagetest.org', 'A.1234567890abcdef1234567890abcdef')

Using AI Code Generation

1var wpt = require('wpt.js');2wpt.getTestResults('testId', function(err, data) {3  console.log(data);4});5exports.getTestResults = function(testId, callback) {6    callback(err, body);7  });8};

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.