vectorpipe.relations.utils.package.scala Maven / Gradle / Ivy

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Import OSM data and output to VectorTiles with GeoTrellis.

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package vectorpipe.relations

import org.locationtech.jts.geom.CoordinateSequence

package object utils {

  /**
    * Tests whether two {@link CoordinateSequence}s are equal.
    * To be equal, the sequences must be the same length.
    * They do not need to be of the same dimension,
    * but the ordinate values for the smallest dimension of the two
    * must be equal.
    * Two NaN ordinates values are considered to be equal.
    *
    * Ported to Scala from JTS 1.15.0
    *
    * @param cs1 a CoordinateSequence
    * @param cs2 a CoordinateSequence
    * @return true if the sequences are equal in the common dimensions
    */
  def isEqual(cs1: CoordinateSequence, cs2: CoordinateSequence): Boolean = {
    if (cs1.size != cs2.size) {
      false
    } else {
      val dim = Math.min(cs1.getDimension, cs2.getDimension)
      (0 until cs1.size).forall(i => {
        (0 until dim).forall(d => {
          val v1 = cs1.getOrdinate(i, d)
          val v2 = cs2.getOrdinate(i, d)

          v1 == v2 || (v1 == Double.NaN && v2 == Double.NaN)
        })
      })
    }
  }

}