NX Nastran DMAP Programmer's Guide - Kxcad.net

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BGPDT
Basic drid point definition table
Record 3 – BIDMAP
Word Name Type Description
1 BGID I Boundary (System) identification number
2 INTID I Internal identification number
Words 1 through 2 repeat until End of Record
Record 4 – NORMAL
Word Name Type Description
1 XNORM RX X normal in aerodynamic system
2 YNORM RX Y normal in aerodynamic system
3 ZNORM RX Z normal in aerodynamic system
Words 1 through 3 repeat until End of Record
Record 5 – TRAILER
Word Name Type Description
1 WORD1 I Number of grid points and scalar points
2 WORD2 I Number of boundary points
3 WORD3 I Number of degrees-of-freedom
4 WORD4 I Precision of the real values; i.e., type=RX
5 WORD5 I Number of scalar points
6 WORD6 I Maximum external identification number
Notes:
1. For partitioned superelements the locations are in the superelement’s basic
coordinate system. In other words, each partitioned superelement has its
own basic coordinate system.
2. Scaler points are identified by CID=-1 and XCOORD = YCOORD =
ZCOORD = 0.
3. If WORD2, number of boundary grids, is zero, then record BIDMAP does not
exist and XIDMAP will be used.