Sha256: fcc46f0eb01a9dccd04883638017aa8b2542da8b6702226a8c4ecebae9e7e44a
Contents?: true
Size: 1.73 KB
Versions: 5
Compression:
Stored size: 1.73 KB
Contents
Jax.Mesh.Torus = Jax.Class.create(Jax.Mesh, {
initialize: function($super, options) {
options = options || {};
this.inner_radius = typeof(options.inner_radius) == "undefined" ? 0.6 : options.inner_radius;
this.outer_radius = typeof(options.outer_radius) == "undefined" ? 1.8 : options.inner_radius;
this.sides = typeof(options.sides ) == "undefined" ? 128 : options.inner_radius;
this.rings = typeof(options.rings ) == "undefined" ? 256 : options.inner_radius;
this.draw_mode = GL_TRIANGLE_STRIP;
$super(options);
},
init: function(vertices, colors, texes, normals) {
var tube_radius = this.inner_radius, radius = this.outer_radius, sides = this.sides, rings = this.rings;
var i, j, theta, phi, theta1, costheta, sintheta, costheta1, sintheta1, ringdelta, sidedelta, cosphi, sinphi,
dist;
sidedelta = 2 * Math.PI / sides;
ringdelta = 2 * Math.PI / rings;
theta = 0;
costheta = 1.0;
sintheta = 0;
for (i = rings - 1; i >= 0; i--) {
theta1 = theta + ringdelta;
costheta1 = Math.cos(theta1);
sintheta1 = Math.sin(theta1);
phi = 0;
for (j = sides; j >= 0; j--) {
phi = phi + sidedelta;
cosphi = Math.cos(phi);
sinphi = Math.sin(phi);
dist = radius + (tube_radius * cosphi);
normals.push(costheta1 * cosphi, -sintheta1 * cosphi, sinphi);
vertices.push(costheta1 * dist, -sintheta1 * dist, tube_radius * sinphi);
normals.push(costheta * cosphi, -sintheta * cosphi, sinphi);
vertices.push(costheta * dist, -sintheta * dist, tube_radius * sinphi);
}
theta = theta1;
costheta = costheta1;
sintheta = sintheta1;
}
}
});
Version data entries
5 entries across 5 versions & 1 rubygems