Go to the bottom.

!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
! SDDL Name:	QATRANS_COEF.SDDL
!
! Purpose:      This SDDL file defines the qatrans_coef relation.
!
! Modification History:
!
!   Date       OPR      Who                       Reason
! --------   -------    ---   -------------------------------------------------
! 11/16/94    27329     RJS   Original implementation
!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
!

LANGUAGE	FORTRAN, SQL

RECORD  QATRAN_TYPE

!------------------------------------------------------------------------------
!
!   RECORD INFORMATION
!
!------------------------------------------------------------------------------

    DESCRIPTION       "This relation defines the coefficients that are used
                       to transform data from between the Science Instrument
                       Coordinate System (SICS) and the Science Aperture
                       Coordinate System (SIAS).  The command that primarily
                       performs this transformation is PMDB/UPDATE, as
                       transformations between the V1-V2-V3, SICS, and
                       SIAS are commonly required.  See the description for
                       the relation QAAPERTURES for more details on the
                       various aperture coordinate systems."


!------------------------------------------------------------------------------
!
!   FIELD INFORMATION
!
!------------------------------------------------------------------------------


    FIELD  coord_id
        TYPE            C10
        DESCRIPTION     "This field specifies the aperture coordinate system
                        ID.  It is the ID of the aperture coordinate system
                        used to specify the location of the target within the
                        aperture. It is the aperture id concatenated
                        with the aperture coordinate system id.
                        Defined in ST-ICD-26 part III appendix A.
                        Field 1 of the first aj record if assigned by IMTOOL."
    END_FIELD


    FIELD  source
        TYPE            C1
        DESCRIPTION     "This field specifies the source of this
                        record. 'U' = User input; 'S' = ST PDB tape."
    END_FIELD



    FIELD  record_index
        TYPE            I*2
        DESCRIPTION     "This field is the index of the record for the aperture
                        coord. ID. The max. value is 21 because of
                        the max. poly. degree n (qaapol) is 5. These coeff.
                        are subscripted jk (j = 0 to n, k = 0 to j).
                        for a 5th degree poly. jk are ordered as: 00, 10,
                        11, 20, 21, 22, 30, 31, 32, 33, 40, 41, 42, 43, 44,
                        50, 51, 52, 53, 54, and 55. This id is 1 for
                        jk = 00, ... 21 for jk = 55. It is the record
                        number of the ak type record when assigned by IMTOOL."
    END_FIELD



    FIELD  x_sias_sics
        TYPE            R*8
        DESCRIPTION     "This field is the coefficient ajk for transforming
                        the x coordinate from SIAS to SICS.
                        The value of jk is determined by record_index.
                        field 1 of the th ak record if assigned by IMTOOL."
    END_FIELD


    FIELD  y_sias_sics
        TYPE            R*8
        DESCRIPTION     "This field is the coefficient bjk for transforming
                        the y coordinate from SIAS to SICS.
                        The value of jk is determined by record_index.
                        Field 2 of the th ak record if assigned by IMTOOL."
    END_FIELD


    FIELD  x_sics_sias
        TYPE            R*8
        DESCRIPTION     "This field is the coefficient cjk for transforming
                        the x coordinate from SICS to SIAS.  The value of jk 
                        is determined by record_index.  Field 3 of the th ak
                        record if assigned by IMTOOL."
    END_FIELD


    FIELD  y_sics_sias
        TYPE            R*8
        DESCRIPTION     "This field is the coefficient djk for transforming
                        the y coordinate from SICS to SIAS.  It is
                        the value of jk is determined by record_index.
                        Field 4 of the th ak record if assigned by IMTOOL."
    END_FIELD

END_RECORD

!------------------------------------------------------------------------------
!
!   RELATION DECLARATION
!
!------------------------------------------------------------------------------

RELATION  qatrans_coef

    TYPE             QATRAN_TYPE

    DESCRIPTION      "Coefficients For Transform Between Aperture Coord. Relation"

    RELATED_FIELDS  "qaapertures.*"

    SUBSYSTEM_USING  "SPSS"

    INDEX  qatrans_coef_1
        TYPE         unique, clustered
        FIELDS       coord_id, record_index
    END_INDEX

END_RELATION

!------------------------------------------------------------------------------
!
!   INSTANCE DECLARATION
!
!------------------------------------------------------------------------------

INSTANCE  qatrans_coef

    GLOBAL

    TYPE        QATRAN_TYPE

END_INSTANCE

Go to the top.