Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | 1x 1x 1x 1x 1x 1x 1x 1x | import Check from "../Core/Check.js";
import Matrix3 from "../Core/Matrix3.js";
import Matrix4 from "../Core/Matrix4.js";
/**
* An enum describing the x, y, and z axes and helper conversion functions.
*
* @enum {number}
*/
const Axis = {
/**
* Denotes the x-axis.
*
* @type {number}
* @constant
*/
X: 0,
/**
* Denotes the y-axis.
*
* @type {number}
* @constant
*/
Y: 1,
/**
* Denotes the z-axis.
*
* @type {number}
* @constant
*/
Z: 2,
};
/**
* Matrix used to convert from y-up to z-up
*
* @type {Matrix4}
* @constant
*/
Axis.Y_UP_TO_Z_UP = Matrix4.fromRotationTranslation(
// Rotation about PI/2 around the X-axis
Matrix3.fromArray([1, 0, 0, 0, 0, 1, 0, -1, 0]),
);
/**
* Matrix used to convert from z-up to y-up
*
* @type {Matrix4}
* @constant
*/
Axis.Z_UP_TO_Y_UP = Matrix4.fromRotationTranslation(
// Rotation about -PI/2 around the X-axis
Matrix3.fromArray([1, 0, 0, 0, 0, -1, 0, 1, 0]),
);
/**
* Matrix used to convert from x-up to z-up
*
* @type {Matrix4}
* @constant
*/
Axis.X_UP_TO_Z_UP = Matrix4.fromRotationTranslation(
// Rotation about -PI/2 around the Y-axis
Matrix3.fromArray([0, 0, 1, 0, 1, 0, -1, 0, 0]),
);
/**
* Matrix used to convert from z-up to x-up
*
* @type {Matrix4}
* @constant
*/
Axis.Z_UP_TO_X_UP = Matrix4.fromRotationTranslation(
// Rotation about PI/2 around the Y-axis
Matrix3.fromArray([0, 0, -1, 0, 1, 0, 1, 0, 0]),
);
/**
* Matrix used to convert from x-up to y-up
*
* @type {Matrix4}
* @constant
*/
Axis.X_UP_TO_Y_UP = Matrix4.fromRotationTranslation(
// Rotation about PI/2 around the Z-axis
Matrix3.fromArray([0, 1, 0, -1, 0, 0, 0, 0, 1]),
);
/**
* Matrix used to convert from y-up to x-up
*
* @type {Matrix4}
* @constant
*/
Axis.Y_UP_TO_X_UP = Matrix4.fromRotationTranslation(
// Rotation about -PI/2 around the Z-axis
Matrix3.fromArray([0, -1, 0, 1, 0, 0, 0, 0, 1]),
);
/**
* Gets the axis by name
*
* @param {string} name The name of the axis.
* @returns {number} The axis enum.
*/
Axis.fromName = function (name) {
//>>includeStart('debug', pragmas.debug);
Check.typeOf.string("name", name);
//>>includeEnd('debug');
return Axis[name];
};
export default Object.freeze(Axis);
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