org.opentrafficsim.draw.graphs

Class GraphUtil

java.lang.Object

org.opentrafficsim.draw.graphs.GraphUtil

public final class GraphUtil
extends Object

Contains some static utilities.

Copyright (c) 2013-2019 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
BSD-style license. See OpenTrafficSim License.

Version:

$Revision$, $LastChangedDate$, by $Author$, initial version 15 okt. 2018

Author:

Alexander Verbraeck, Peter Knoppers, Wouter Schakel

Method Summary

Modifier and Type	Method and Description
static boolean	considerTrajectory(Trajectory<?> trajectory, Length startPosition, Length endPosition) Helper method for quick filtering of trajectories by checking if the position of the trajectory has overlap with the given range.
static boolean	considerTrajectory(Trajectory<?> trajectory, Time startTime, Time endTime) Helper method for quick filtering of trajectories by checking if the time of the trajectory has overlap with the given time.
static double[]	ensureCapacity(double[] data, int capacity) Ensures that the given capacity is available in the array.
static float[]	ensureCapacity(float[] data, int capacity) Ensures that the given capacity is available in the array.
static int[]	ensureCapacity(int[] data, int capacity) Ensures that the given capacity is available in the array.
static <K> ChartMouseListener	getToggleSeriesByLegendListener(LegendItemCollection legend, List<Boolean> visibility) Returns a chart listener that allows the series to be enabled and disabled by clicking on the respective legend item.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

considerTrajectory

public static boolean considerTrajectory(Trajectory<?> trajectory,
                                         Time startTime,
                                         Time endTime)

Helper method for quick filtering of trajectories by checking if the time of the trajectory has overlap with the given time.

Parameters:

trajectory - Trajectory<?>; trajectory

startTime - Time; start time

endTime - Time; end time

Returns:

boolean; true if the trajectory should be considered for the given time

considerTrajectory

public static boolean considerTrajectory(Trajectory<?> trajectory,
                                         Length startPosition,
                                         Length endPosition)

Helper method for quick filtering of trajectories by checking if the position of the trajectory has overlap with the given range.

Parameters:

trajectory - Trajectory<?>; trajectory

startPosition - Length; start position

endPosition - Length; end position

Returns:

boolean; true if the trajectory should be considered for the given time

ensureCapacity

public static double[] ensureCapacity(double[] data,
                                      int capacity)

Ensures that the given capacity is available in the array. The array may become or may be longer than the required capacity. This method assumes that the array has non-zero length, and that the capacity required is at most 1 more than what the array can provide.

Parameters:

data - double[]; data array

capacity - int; required capacity

Returns:

double[]; array with at least the requested capacity

ensureCapacity

public static float[] ensureCapacity(float[] data,
                                     int capacity)

Ensures that the given capacity is available in the array. The array may become or may be longer than the required capacity. This method assumes that the array has non-zero length, and that the capacity required is at most 1 more than what the array can provide.

Parameters:

data - float[]; data array

capacity - int; required capacity

Returns:

float[]; array with at least the requested capacity

ensureCapacity

public static int[] ensureCapacity(int[] data,
                                   int capacity)

Ensures that the given capacity is available in the array. The array may become or may be longer than the required capacity. This method assumes that the array has non-zero length, and that the capacity required is at most 1 more than what the array can provide.

Parameters:

data - int[]; data array

capacity - int; required capacity

Returns:

int[]; array with at least the requested capacity

getToggleSeriesByLegendListener

public static <K> ChartMouseListener getToggleSeriesByLegendListener(LegendItemCollection legend,
                                                                     List<Boolean> visibility)

Returns a chart listener that allows the series to be enabled and disabled by clicking on the respective legend item.

Type Parameters:

K - underlying key type of the series

Parameters:

legend - LegendItemCollection; legend

visibility - List<Boolean>; visibility of each series; the listener will store visibility in this list, which an AbstractRenderer can use in isSeriesVisible(series) to show or hide the series

Returns:

ChartMouseListener; listener that will allow series to be enabled and disabled by clicking on the respective legend item