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NX Nastran DMAP Programmer's Guide - Kxcad.net

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104<br />

CSTM<br />

Coordinate system transformation matrices table<br />

Word Name Type Description<br />

5 WORD5 I Length of REALDATA record<br />

6 WORD6 I Length of INTDATA record<br />

Notes:<br />

1. Coordinate system type as specified in IDENT:TYPE and by bit numbers<br />

numbered right to left in TRAILER:WORD3:<br />

1 = rectangular<br />

2 = cylindrical<br />

3 = spherical<br />

4 = convective – defined on a GMCURV+GMSURF pair<br />

5 = convective – defined on a GMSURF<br />

6 = convective – defined on a FEEDGE+FEFACE pair<br />

7 = convective – defined on a FEFACE<br />

8 = general – sequence of rotational angles on CORD3G entry<br />

2. REALDATA is intended for IDENT:TYPE’s 1, 2, and 3 and contains real data<br />

similar to CSTM68.<br />

3. INTDATA is intended for IDENT:TYPE’s 4 through 8 and contains<br />

GMCURV, etc. Identification numbers similar to CSTM68. XYZi data found<br />

in CSTM68 are converted to grid entry indices into BGPDT.

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