M JS
3D math operations in JavaScript.
Install
In the browser just load the file m.js in a script tag at the bottom of its body.
<body>
...
<script src="m.js">
<!-- your scripts using m.js here -->
</body>In node just install the package m.js and require (or import) it in your module.
$ npm i m.jsvar M = require('m.js');
// or import it (e.g. in React, Vue... whatever)
import M from 'm.js';Use
Demo code:
// define a matrix where to locate the vertices of a cube
var cube = [
[],
[]
];
// define the length of the sides
var side = 100;
// define the vertices from one side
cube[0].push(M.p(0, 0, 0));
cube[0].push(M.p(0, side, 0));
cube[0].push(M.p(side, side, 0));
cube[0].push(M.p(side, 0, 0));
// define the vertices from the opposite side
cube[1].push(M.p(0, 0, side));
cube[1].push(M.p(0, side, side));
cube[1].push(M.p(side, side, side));
cube[1].push(M.p(side, 0, side));
for (var i in cube) {
// translate the cube to locate its reference point (0, 0, 0) to its center
M.t(cube[i], -side / 2, -side / 2, -side / 2);
// rotate the cube a bit in z and x axis
M.rzd(cube[i], 55);
M.rxd(cube[i], 60);
}
// next render the geometry ...
SEE animated demo cube-3d.js by running index.html in the browser.
