Package com.inductiveautomation.factorypmi.application.components.chart.easychart

Class IHistogram

java.lang.Object

com.inductiveautomation.factorypmi.application.components.chart.easychart.IHistogram

Direct Known Subclasses:

AggregatingHistogram, TimestampQueryBackedHistogram

public abstract class IHistogram
extends java.lang.Object

Constructor Summary

Constructors

Constructor	Description
IHistogram()

Method Summary

Modifier and Type	Method	Description
abstract float[]	createHistogramArray(long startDate, long endDate, int width)	Create an array of floats 0.0-1.0 representing the histogram between the two dates.
protected long	widthToDate(int x, long startDate, long endDate, int width)

Methods inherited from class java.lang.Object

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

Constructor Detail

IHistogram

public IHistogram()

Method Detail

createHistogramArray

public abstract float[] createHistogramArray(long startDate,
                                             long endDate,
                                             int width)

Create an array of floats 0.0-1.0 representing the histogram between the two dates. The array should have a length of width, exactly, or may be null if no histogram data is available for that timeframe.

widthToDate

protected long widthToDate(int x,
                           long startDate,
                           long endDate,
                           int width)