/**
* Extracts the scale from a 2D transform matrix.
*
* @param {string} transformMatrix The 2D transform matrix.
*
* @return {number} The combined scale element of the transform.
*/
export function scaleFromTransformMatrix(transformMatrix) {
const matrixValues = transformMatrix
.split("(")[1]
.split("(")[0]
.split(",");
const a = matrixValues[0];
const b = matrixValues[1];
return Math.sqrt(a * a + b * b);
}