Function getZoom

src/common/iServer/InitMapServiceBase.js:184–187

({ scale, dpi, coordUnit }, extent)

 * @returns {number} zoom
 */
export function getZoom({ scale, dpi, coordUnit }, extent) {
  const resolutions = extentToResolutions(extent);
  return getZoomByResolution(scaleToResolution(scale, dpi, coordUnit), resolutions);
}