Class PolylineSimplifier.Options

Field Detail

• SIMPLIFICATION_IN_METERS_14_ZOOM_LEVEL

  public static final long SIMPLIFICATION_IN_METERS_14_ZOOM_LEVEL

  Value for simplification tolerance for 14 zoom level without significant artifacts.

  See Also:

  Constant Field Values

• maxPoints

  public long maxPoints

  Sets the upper limit on the resulting collection for the PolylineSimplifier.simplify(java.util.List<com.here.sdk.core.GeoCoordinates>, com.here.sdk.core.PolylineSimplifier.Options, com.here.sdk.core.PolylineSimplificationCallback). Lower value results in the lower accuracy of the resulting polyline. If maxPoints is less than 2 then resulting polyline will not have an upper limit on the size and only simplificationToleranceInMeters will be considered. When maxPoints is greater than size of the passed polyline then simplification algorithm will take into account only simplificationToleranceInMeters.

• simplificationToleranceInMeters

  public long simplificationToleranceInMeters

  Sets the accuracy limit for the PolylineSimplifier.simplify(java.util.List<com.here.sdk.core.GeoCoordinates>, com.here.sdk.core.PolylineSimplifier.Options, com.here.sdk.core.PolylineSimplificationCallback):

  • higher tolerance results in more simplification (fewer points);
  • lower tolerance keeps the line closer to its original shape.

  If removing a point produces polyline, which deviates from the original one more than simplificationToleranceInMeters, then this point is left in the collection.

  If specified tolerance will not allow to create a polyline conforming to maxPoints, then simplificationToleranceInMeters is ignored.

  Default value is equal to SIMPLIFICATION_IN_METERS_14_ZOOM_LEVEL.

Constructor Detail

• Options

  public Options()

  Creates default options with maxPoints equal to 0 and simplificationToleranceInMeters equal to SIMPLIFICATION_IN_METERS_14_ZOOM_LEVEL.

• Options

  public Options​(long maxPoints,
                 long simplificationToleranceInMeters)

  Creates options with explicitly specified maxPoints and simplificationToleranceInMeters.

  Parameters:

  maxPoints -

  Sets the upper limit on the resulting collection for the PolylineSimplifier.simplify(java.util.List<com.here.sdk.core.GeoCoordinates>, com.here.sdk.core.PolylineSimplifier.Options, com.here.sdk.core.PolylineSimplificationCallback). Lower value results in the lower accuracy of the resulting polyline. If maxPoints is less than 2 then resulting polyline will not have an upper limit on the size and only simplificationToleranceInMeters will be considered. When maxPoints is greater than size of the passed polyline then simplification algorithm will take into account only simplificationToleranceInMeters.

  simplificationToleranceInMeters -

  Sets the accuracy limit for the PolylineSimplifier.simplify(java.util.List<com.here.sdk.core.GeoCoordinates>, com.here.sdk.core.PolylineSimplifier.Options, com.here.sdk.core.PolylineSimplificationCallback):

  • higher tolerance results in more simplification (fewer points);
  • lower tolerance keeps the line closer to its original shape.

  If removing a point produces polyline, which deviates from the original one more than simplificationToleranceInMeters, then this point is left in the collection.

  If specified tolerance will not allow to create a polyline conforming to maxPoints, then simplificationToleranceInMeters is ignored.

  Default value is equal to SIMPLIFICATION_IN_METERS_14_ZOOM_LEVEL.