optics-rs 0.14.0

Rust port of EPICS synApps optics module
Documentation 
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# This database implements the transformation necessary for variable
# mask aperture slits
#
# The horizontal and vertical slit sizes are each controlled by a single
# motor (yaw and pitch, respectively) 
#
#
# size = $(P)$(VMAS)C1 - $(P)$(VMAS)C2 * $(P)$(M1DRV) 
# 
# Where:
#	$(P)$(VMAS)C1 = horizontal aperture size when mask angle is 0 degrees
#	$(P)$(VMAS)C2 = ratio of edge separation to motor lever arm 

#
# These two records are where the soft motors write their output.
# They are needed because writing to a transform record field does not
# cause the record to process?
# We use forward links to the transform record (rather than making the INPA
# field of the transform record CP) so that the scan record waits 
# for the motors to move.
grecord(ao,"$(P)$(VMAS)DVAL") {
	field(FLNK, "$(P)$(T)Drive")
	field(PREC, "8")
}

# This record is processed whenever the soft motor record VMAS writes
# new values to the DVAL records above.
# Note: the INPA field get their values directly from the .DVAL
# fields of the soft motor records, rather than from the DVAL record above.
# This is because the .DVAL fields are always correct, while the DVAL records
# do not get updated when the soft motor .DVAL fields are modified in SET mode.
grecord(transform,"$(P)$(T)Drive") {
	field(INPA,"$(P)$(VMAS).DVAL NPP NMS")
	field(INPB,"$(P)$(VMAS)C1.VAL NPP NMS")
	field(INPC,"$(P)$(VMAS)C2.VAL NPP NMS")
#	field(INPD,"$(P)$(VMAS)C3.VAL NPP NMS")
#	field(INPE,"$(P)$(VMAS)C4.VAL NPP NMS")
	field(CLCG,"(B - A) / C")
    field(OUTG,"$(P)$(M1DRV) PP MS")
	field(PREC,"$(PREC)")
}

# This record calculates the readback positions of the soft motors.  It 
# processes whenever the readbacks of the real motors change, or whenever
# one of the the geometry constants changes.
grecord(transform,"$(P)$(T)Readback") {
	field(INPA,"$(P)$(M1RBV) CP MS")
	field(INPB,"$(P)$(VMAS)C1.VAL CP NMS")
	field(INPC,"$(P)$(VMAS)C2.VAL CP NMS")
#	field(INPD,"$(P)$(VMAS)C3.VAL NPP NMS")
#	field(INPE,"$(P)$(VMAS)C4.VAL NPP NMS")
	field(CLCG,"B - C * A")
	field(IVLA,"Do Nothing")
	field(PREC,"$(PREC)")
}

# This record processes if either of the soft motor STOP fields is set.
grecord(dfanout,"$(P)$(T)Stop") {
        field(VAL,"1")
        field(OUTA,"$(P)$(M1STOP) PP MS")
}

# This record computes whether the compound motor is done moving.  
# It goes to 1 when both real motors are done moving.
# positions of the real motors.
grecord(calcout,"$(P)$(T)Done") {
        field(INPA,"$(P)$(M1DONE) CP MS")
        field(CALC,"A")
}