;+
; NAME:
;	RemoteView_FOV_Edge
; PURPOSE:
;
; CATEGORY:
;	RemoteView project
; CALLING SEQUENCE:
	FUNCTION RemoteView_FOV_Edge, fov, EqTrans
; INPUTS:
;	fov				scalar; type: float
;						half-width of field of view (radians)
;	EqTrans			scalar; type: integer
;						defines the type of transformation between fov and sky.
; OUTPUTS:
;	fovedge			scalar; type: float
; INCLUDE:
	@compile_opt.pro			; On error, return to caller
; CALLS:
;	RemoteView_EqTrans
; PROCEDURE:
; MODIFICATION HISTORY:
;	DEC-2000, Paul Hick (UCSD/CASS; pphick@ucsd.edu)
;-

CASE EqTrans OF
RemoteView_EqTrans(/eqdist ): RETURN, tan(fov)
RemoteView_EqTrans(/eqangle): RETURN, fov
RemoteView_EqTrans(/eqarea ): RETURN, sqrt(2*(1-cos(fov)))
ENDCASE

END