import {
  assert
} from "./chunk-QFCIXVZ3.js";

// node_modules/ol/transform.js
var tmp_ = new Array(6);
function create() {
  return [1, 0, 0, 1, 0, 0];
}
function reset(transform) {
  return set(transform, 1, 0, 0, 1, 0, 0);
}
function multiply(transform1, transform2) {
  const a1 = transform1[0];
  const b1 = transform1[1];
  const c1 = transform1[2];
  const d1 = transform1[3];
  const e1 = transform1[4];
  const f1 = transform1[5];
  const a2 = transform2[0];
  const b2 = transform2[1];
  const c2 = transform2[2];
  const d2 = transform2[3];
  const e2 = transform2[4];
  const f2 = transform2[5];
  transform1[0] = a1 * a2 + c1 * b2;
  transform1[1] = b1 * a2 + d1 * b2;
  transform1[2] = a1 * c2 + c1 * d2;
  transform1[3] = b1 * c2 + d1 * d2;
  transform1[4] = a1 * e2 + c1 * f2 + e1;
  transform1[5] = b1 * e2 + d1 * f2 + f1;
  return transform1;
}
function set(transform, a, b, c, d, e, f) {
  transform[0] = a;
  transform[1] = b;
  transform[2] = c;
  transform[3] = d;
  transform[4] = e;
  transform[5] = f;
  return transform;
}
function setFromArray(transform1, transform2) {
  transform1[0] = transform2[0];
  transform1[1] = transform2[1];
  transform1[2] = transform2[2];
  transform1[3] = transform2[3];
  transform1[4] = transform2[4];
  transform1[5] = transform2[5];
  return transform1;
}
function apply(transform, coordinate) {
  const x = coordinate[0];
  const y = coordinate[1];
  coordinate[0] = transform[0] * x + transform[2] * y + transform[4];
  coordinate[1] = transform[1] * x + transform[3] * y + transform[5];
  return coordinate;
}
function rotate(transform, angle) {
  const cos = Math.cos(angle);
  const sin = Math.sin(angle);
  return multiply(transform, set(tmp_, cos, sin, -sin, cos, 0, 0));
}
function scale(transform, x, y) {
  return multiply(transform, set(tmp_, x, 0, 0, y, 0, 0));
}
function translate(transform, dx, dy) {
  return multiply(transform, set(tmp_, 1, 0, 0, 1, dx, dy));
}
function compose(transform, dx1, dy1, sx, sy, angle, dx2, dy2) {
  const sin = Math.sin(angle);
  const cos = Math.cos(angle);
  transform[0] = sx * cos;
  transform[1] = sy * sin;
  transform[2] = -sx * sin;
  transform[3] = sy * cos;
  transform[4] = dx2 * sx * cos - dy2 * sx * sin + dx1;
  transform[5] = dx2 * sy * sin + dy2 * sy * cos + dy1;
  return transform;
}
function makeInverse(target, source) {
  const det = determinant(source);
  assert(det !== 0, "Transformation matrix cannot be inverted");
  const a = source[0];
  const b = source[1];
  const c = source[2];
  const d = source[3];
  const e = source[4];
  const f = source[5];
  target[0] = d / det;
  target[1] = -b / det;
  target[2] = -c / det;
  target[3] = a / det;
  target[4] = (c * f - d * e) / det;
  target[5] = -(a * f - b * e) / det;
  return target;
}
function determinant(mat) {
  return mat[0] * mat[3] - mat[1] * mat[2];
}
var matrixPrecision = [1e5, 1e5, 1e5, 1e5, 2, 2];
function toString(mat) {
  const transformString = "matrix(" + mat.join(", ") + ")";
  return transformString;
}
function fromString(cssTransform) {
  const values = cssTransform.substring(7, cssTransform.length - 1).split(",");
  return values.map(parseFloat);
}
function equivalent(cssTransform1, cssTransform2) {
  const mat1 = fromString(cssTransform1);
  const mat2 = fromString(cssTransform2);
  for (let i = 0; i < 6; ++i) {
    if (Math.round((mat1[i] - mat2[i]) * matrixPrecision[i]) !== 0) {
      return false;
    }
  }
  return true;
}

export {
  create,
  reset,
  multiply,
  setFromArray,
  apply,
  rotate,
  scale,
  translate,
  compose,
  makeInverse,
  toString,
  equivalent
};
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