. 1 NX9 + VS2012 2 3 . 4 #include <uf.h> . 5 #include <uf_csys.h> . 6 #include <uf_mtx.h> . 7 . 8 . 9 UF_initialize (); 10 . 11 // input vector Y outputs a vector X * 3 3 matrix 12 is Double XVEC [ . 3 ] = { 0.0 , 0.0 , 1.0 }; 13 is Double Yvec [ . 3 ] = { 0.0 , 1.0 , 0.0 }; 14 Double Mtx [ . 9 ]; 15 UF_MTX3_initialize (XVEC, Yvec, Mtx); 16 . 17 // create a 3 x 3 matrix 18 is tag_t matrixID = NULL_TAG; . 19 UF_CSYS_create_matrix (Mtx, & matrixID); 20 is 21 is 22 is // or written 23 is Double MatrixValues [ . 9 ] = { 1.0 , 0.0 , 0.0 , 0.0 , 1.0 , 0.0 , 0.0 , 0.0 , 1.0 }; 24 tag_t MatrixID1 = NULL_TAG; 25 UF_CSYS_create_matrix(MatrixValues, &MatrixID1); 26 27 //创建CSYS坐标系 28 double CsysOrigin[3] = {0.0, 0.0, 0.0}; 29 tag_t CsysId = NULL_TAG; 30 UF_CSYS_create_csys(CsysOrigin, MatrixID, &CsysId); 31 32 33 UF_terminate();