text: import SimilarityMeasure from './SimilarityMeasure'
  import Envelope from '../../geom/Envelope'
  import DiscreteHausdorffDistance from '../distance/DiscreteHausdorffDistance'
  
  export default class HausdorffSimilarityMeasure {
    measure (g1, g2) {
      var distance = DiscreteHausdorffDistance.distance(g1, g2, HausdorffSimilarityMeasure.DENSIFY_FRACTION)
      var env = new Envelope(g1.getEnvelopeInternal())
      env.expandToInclude(g2.getEnvelopeInternal())
      var envSize = HausdorffSimilarityMeasure.diagonalSize(env)
      var measure = 1 - distance / envSize
      return measure
    }
    interfaces_ () {
      return [SimilarityMeasure]
    }
    getClass () {
      return HausdorffSimilarityMeasure
    }
    static diagonalSize (env) {
      if (env.isNull()) return 0.0
      var width = env.getWidth()
      var hgt = env.getHeight()
      return Math.sqrt(width * width + hgt * hgt)
    }
    static get DENSIFY_FRACTION () { return 0.25 }
  }
  