org.lsst.ccs.subsystems.shutter.sim

Class MotorPosition

java.lang.Object

org.lsst.ccs.subsystems.shutter.sim.MotorPosition

public class MotorPosition
extends Object

Represents a simulated motor position sample.

The time for each sample is an absolute system time in microseconds. Only relative blade set positions are used (see BladePosition). The velocity units are 1/sec and the acceleration units are 1/sec/sec.

Instances are immutable.

Author:

azemoon, tether

Constructor Summary

Constructors

Constructor and Description
MotorPosition(double position, double velocity, double acceleration, long time) Constructs an instance from the field values.

Method Summary

Modifier and Type	Method and Description
double	getAcceleration() Gets the acceleration in units of 1/sec/sec.
double	getPosition() Gets the relative position.
long	getTime() Gets the time of the sample.
double	getVelocity() Gets the velocity in units of 1/sec.

Methods inherited from class java.lang.Object

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

Constructor Detail

MotorPosition

public MotorPosition(double position,
                     double velocity,
                     double acceleration,
                     long time)

Constructs an instance from the field values.

Parameters:

position - the relative position

velocity - the rate of change of relative position

acceleration - the second time derivative of the relative position

time - the time in microseconds

Method Detail

getPosition

public double getPosition()

Gets the relative position.

Returns:

the position

getTime

public long getTime()

Gets the time of the sample.

Returns:

the time

getAcceleration

public double getAcceleration()

Gets the acceleration in units of 1/sec/sec.

Returns:

the acceleration

getVelocity

public double getVelocity()

Gets the velocity in units of 1/sec.

Returns:

the velocity