gl-matrix

To help you get started, we’ve selected a few @antv/gl-matrix examples, based on popular ways it is used in public projects.

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vec2.angle = function (v1, v2) {
  const theta = vec2.dot(v1, v2) / (vec2.length(v1) * vec2.length(v2));
  return Math.acos(clamp(theta, -1, 1));
};