org.opentripplanner.ext.flex.flexpathcalculator.DirectFlexPathCalculator Maven / Gradle / Ivy

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The OpenTripPlanner multimodal journey planning system

There is a newer version: 2.5.0

package org.opentripplanner.ext.flex.flexpathcalculator;

import org.locationtech.jts.geom.Coordinate;
import org.locationtech.jts.geom.LineString;
import org.opentripplanner.common.geometry.GeometryUtils;
import org.opentripplanner.common.geometry.SphericalDistanceLibrary;
import org.opentripplanner.routing.graph.Graph;
import org.opentripplanner.routing.graph.Vertex;

/**
 * Calculated driving times and distance based on direct distance and fixed average driving speed.
 */
public class DirectFlexPathCalculator implements FlexPathCalculator {
  public static final double FLEX_SPEED = 8.0;

  private static final int DIRECT_EXTRA_TIME = 5 * 60;

  private double flexSpeed;

  public DirectFlexPathCalculator(Graph graph) {
    this.flexSpeed = FLEX_SPEED;
  }

  @Override
  public FlexPath calculateFlexPath(
      Vertex fromv, Vertex tov, int fromStopIndex, int toStopIndex
  ) {
    double distance = SphericalDistanceLibrary.distance(fromv.getCoordinate(), tov.getCoordinate());
    LineString geometry = GeometryUtils.getGeometryFactory().createLineString(
        new Coordinate[] {fromv.getCoordinate(), tov.getCoordinate()}
    );

    return new FlexPath(
        (int) distance,
        (int) (distance / flexSpeed) + DIRECT_EXTRA_TIME,
        () -> geometry
    );
  }
}