vislite/lib/Matrix4/index.es.js

灵活、快速、简单的数据可视化交互式跨端前端库

/*!
* Matrix4 of VISLite JavaScript Library v1.3.0
* git+https://github.com/oi-contrib/VISLite.git
*/
function _move (d, a, b, c) {
    if (c === void 0) { c = 0; }
    var sqrt = Math.sqrt(a * a + b * b + c * c);
    return [
        1, 0, 0, 0,
        0, 1, 0, 0,
        0, 0, 1, 0,
        a * d / sqrt, b * d / sqrt, c * d / sqrt, 1
    ];
}

function _rotate (deg) {
    var sin = Math.sin(deg), cos = Math.cos(deg);
    return [
        cos, sin, 0, 0,
        -sin, cos, 0, 0,
        0, 0, 1, 0,
        0, 0, 0, 1
    ];
}

function _scale (xTimes, yTimes, zTimes, cx, cy, cz) {
    if (cx === void 0) { cx = 0; }
    if (cy === void 0) { cy = 0; }
    if (cz === void 0) { cz = 0; }
    return [
        xTimes, 0, 0, 0,
        0, yTimes, 0, 0,
        0, 0, zTimes, 0,
        cx - cx * xTimes, cy - cy * yTimes, cz - cz * zTimes, 1
    ];
}

function _transform (a1, b1, c1, a2, b2, c2) {
    if (typeof a1 === 'number' && typeof b1 === 'number') {
        if (typeof c1 !== 'number') {
            c1 = 0;
            a2 = a1;
            b2 = b1;
            c2 = 1;
        }
        else if (typeof a2 !== 'number' || typeof b2 !== 'number' || typeof c2 !== 'number') {
            a2 = a1;
            b2 = b1;
            c2 = c1;
            a1 = 0;
            b1 = 0;
            c1 = 0;
        }
        if (a1 == a2 && b1 == b2 && c1 == c2)
            throw new Error('It\'s not a legitimate ray!');
        var sqrt1 = Math.sqrt((a2 - a1) * (a2 - a1) + (b2 - b1) * (b2 - b1)), cos1 = sqrt1 != 0 ? (b2 - b1) / sqrt1 : 1, sin1 = sqrt1 != 0 ? (a2 - a1) / sqrt1 : 0, b = (a2 - a1) * sin1 + (b2 - b1) * cos1, c = c2 - c1, sqrt2 = Math.sqrt(b * b + c * c), cos2 = sqrt2 != 0 ? c / sqrt2 : 1, sin2 = sqrt2 != 0 ? b / sqrt2 : 0;
        return [
            [
                cos1, cos2 * sin1, sin1 * sin2, 0,
                -sin1, cos1 * cos2, cos1 * sin2, 0,
                0, -sin2, cos2, 0,
                b1 * sin1 - a1 * cos1, c1 * sin2 - a1 * sin1 * cos2 - b1 * cos1 * cos2, -a1 * sin1 * sin2 - b1 * cos1 * sin2 - c1 * cos2, 1
            ],
            [
                cos1, -sin1, 0, 0,
                cos2 * sin1, cos2 * cos1, -sin2, 0,
                sin1 * sin2, cos1 * sin2, cos2, 0,
                a1, b1, c1, 1
            ]
        ];
    }
    else {
        throw new Error('a1 and b1 is required!');
    }
}

var _multiply = function (matrix4, param) {
    var newParam = [];
    for (var i = 0; i < 4; i++)
        for (var j = 0; j < param.length / 4; j++)
            newParam[j * 4 + i] =
                matrix4[i] * param[j * 4] +
                    matrix4[i + 4] * param[j * 4 + 1] +
                    matrix4[i + 8] * param[j * 4 + 2] +
                    matrix4[i + 12] * param[j * 4 + 3];
    return newParam;
};
var __initMatrix4 = [
    1, 0, 0, 0,
    0, 1, 0, 0,
    0, 0, 1, 0,
    0, 0, 0, 1
];
var Matrix4 = (function () {
    function Matrix4(initMatrix4) {
        if (initMatrix4 === void 0) { initMatrix4 = __initMatrix4; }
        this.name = 'Matrix4';
        this.__matrix4 = initMatrix4;
    }
    Matrix4.prototype.setValue = function (initMatrix4) {
        if (initMatrix4 === void 0) { initMatrix4 = __initMatrix4; }
        this.__matrix4 = initMatrix4;
        return this;
    };
    Matrix4.prototype.move = function (dis, a, b, c) {
        if (c === void 0) { c = 0; }
        this.__matrix4 = _multiply(_move(dis, a, b, c), this.__matrix4);
        return this;
    };
    Matrix4.prototype.rotate = function (deg, a1, b1, c1, a2, b2, c2) {
        var matrix4s = _transform(a1, b1, c1, a2, b2, c2);
        this.__matrix4 = _multiply(_multiply(_multiply(matrix4s[1], _rotate(deg)), matrix4s[0]), this.__matrix4);
        return this;
    };
    Matrix4.prototype.scale = function (xTimes, yTimes, zTimes, cx, cy, cz) {
        if (cx === void 0) { cx = 0; }
        if (cy === void 0) { cy = 0; }
        if (cz === void 0) { cz = 0; }
        this.__matrix4 = _multiply(_scale(xTimes, yTimes, zTimes, cx, cy, cz), this.__matrix4);
        return this;
    };
    Matrix4.prototype.multiply = function (newMatrix4, flag) {
        if (flag === void 0) { flag = false; }
        this.__matrix4 = flag ? _multiply(this.__matrix4, newMatrix4) : _multiply(newMatrix4, this.__matrix4);
        return this;
    };
    Matrix4.prototype.use = function (x, y, z, w) {
        if (z === void 0) { z = 0; }
        if (w === void 0) { w = 1; }
        return _multiply(this.__matrix4, [x, y, z, w]);
    };
    Matrix4.prototype.value = function () {
        return this.__matrix4;
    };
    return Matrix4;
}());

export { Matrix4 as default };