org.lsst.ccs.subsystems.shutter.sim

Class MotorEncoderSimulator

java.lang.Object

org.lsst.ccs.subsystems.shutter.sim.MotorEncoderSimulator

All Implemented Interfaces:

Function<MotorPosition,BladePosition>

public class MotorEncoderSimulator
extends Object
implements Function<MotorPosition,BladePosition>

Makes a BladePosition from the information in a MotorPosition.

At present this just takes the relative position and time, adding a random truncated Gaussian jitter of standard deviation 0.0001 to the relative position. (see BladePosition). The absolute position, which uses actual length units, is set to zero.

Author:

azemoon, tether

Field Summary

Fields

Modifier and Type	Field and Description
static double	JITTER_STDDEV The standard deviation of the jitter added to the relative position.
static double	MAX_JITTER The maximum permitted absolute value of the added jitter, i.e., where we cut off the tails of the Gaussian.

Constructor Summary

Constructors

Constructor and Description
MotorEncoderSimulator()

Method Summary

Modifier and Type	Method and Description
BladePosition	apply(MotorPosition p)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Field Detail

JITTER_STDDEV

public static final double JITTER_STDDEV

The standard deviation of the jitter added to the relative position. For a full travel range of about 1 meter this would be about 1/10 mm.

See Also:

Constant Field Values

MAX_JITTER

public static final double MAX_JITTER

The maximum permitted absolute value of the added jitter, i.e., where we cut off the tails of the Gaussian.

See Also:

Constant Field Values

Constructor Detail

MotorEncoderSimulator

public MotorEncoderSimulator()

Method Detail

apply

public BladePosition apply(MotorPosition p)

Specified by:

apply in interface Function<MotorPosition,BladePosition>