org.opentripplanner.common.geometry

Interface AccumulativeGridSampler.AccumulativeMetric<TZ>

Type Parameters:

TZ -

All Known Implementing Classes:

SampleGridRenderer.WTWDAccumulativeMetric

Enclosing class:

AccumulativeGridSampler<TZ>

public static interface AccumulativeGridSampler.AccumulativeMetric<TZ>

An accumulative metric give the behavior of combining several samples to a regular sample grid, ie how we should weight and add several TZ values from inside a cell to compute the cell corner TZ values.

Author:

laurent

Method Summary

Modifier and Type	Method and Description
boolean	closeSample(ZSampleGrid.ZSamplePoint<TZ> point) Callback function to handle a "closing" sample (that is a sample post-created to surround existing samples and provide nice and smooth edges for the algorithm).
TZ	cumulateSample(com.vividsolutions.jts.geom.Coordinate C0, com.vividsolutions.jts.geom.Coordinate Cs, TZ z, TZ zS, double offRoadSpeed) Callback function to handle a new added sample.

Method Detail

cumulateSample

TZ cumulateSample(com.vividsolutions.jts.geom.Coordinate C0,
                  com.vividsolutions.jts.geom.Coordinate Cs,
                  TZ z,
                  TZ zS,
                  double offRoadSpeed)

Callback function to handle a new added sample.

Parameters:

C0 - The initial position of the sample, as given in the addSample() call.

Cs - The position of the sample on the grid, never farther away than (dX,dY)

z - The z value of the initial sample, as given in the addSample() call.

zS - The previous z value of the sample. Can be null if this is the first time, it's up to the caller to initialize the z value.

offRoadSpeed - The offroad speed to assume.

Returns:

The modified z value for the sample.

closeSample

boolean closeSample(ZSampleGrid.ZSamplePoint<TZ> point)

Callback function to handle a "closing" sample (that is a sample post-created to surround existing samples and provide nice and smooth edges for the algorithm).

Parameters:

point - The point to set Z.

Returns:

True if the point "close" the set.