org.lsst.ccs.subsystems.shutter.interfaces
Interface BladePosition

All Known Implementing Classes:

BladePositionImpl

public interface BladePosition

Method Summary

float	getPosition() Get the position of the leading blade.
float	getRelPosition() Get the relative position of the leading blade.
long	getTime() Get the Epoch microseconds when the leading blade was at the position.

Method Detail

getPosition

float getPosition()

Get the position of the leading blade. This is the distance, in mm, from the fixed shutter origin. One blade is opening in the positive direction, the other one in the negative direction

getRelPosition

float getRelPosition()

Get the relative position of the leading blade. This is a number in the range (0,1) representing the fraction that the blade is closed.

getTime

long getTime()

Get the Epoch microseconds when the leading blade was at the position.