1 #include <FCMangle.h>
2 #define symtri FortranCInterface_GLOBAL_(symtri,SYMTRI)
3
4 typedef double DARR3[3];
5
6 int triIntPnt(int, DARR3**,double**);
7
symtri(int * n1,double pt[][4],double wt[],int * err)8 void symtri(int *n1, double pt[][4], double wt[], int *err)
9 {
10 double *lwt;
11 DARR3 *lpt;
12 int i,j;
13 *err = triIntPnt(*n1, &lpt, &lwt);
14 for(i=0; i < *n1; i++){
15 wt[i] = lwt[i];
16 for(j=0; j < 3; j++)
17 pt[i][j] = lpt[i][j];
18 }
19 }
20
21 #include <stdio.h>
22
23 #define A 0.3333333333333330000000000000000000
24 #define B 0.666666666666667
25 #define C 0.166666666666667
26 #define D 0.562500000000000
27 #define E 0.520833333333333
28
29 #define F 0.109951743655322
30 #define G 0.223381589678011
31 #define H 0.816847572980459
32 #define I 0.091576213509771
33 #define J 0.108103018168070
34 #define K 0.445948490915965
35
36 #define L 0.225000000000000
37 #define M 0.125939180544827
38 #define N 0.132394152788506
39
40 #define O 0.797426985353087
41 #define P 0.101286507323456
42 #define Q 0.470142064105115
43 #define R 0.059715871789770
44
45 #define S 0.050844906370207
46 #define T 0.116786275726379
47 #define U 0.082851075618374
48
49 #define V 0.873821971016996
50 #define W 0.063089014491502
51 #define X 0.501426509658179
52 #define Y 0.249286745170910
53 #define Z 0.636502499121399
54 #define AA 0.310352451033785
55 #define BB 0.053145049844816
56
57 /* typedef double DARR3[3] ; */
58
59 static double rst1[][3] = {{A,A,A}};
60 static double wt1[] = {1.00000000000000000};
61
62 static double rst3[][3] = {{B,C,C},{C,B,C},{C,C,B}};
63 static double wt3[] = {A,A,A};
64
65 static double rst4[][3] = {{A,A,A},
66 {0.6,0.2,0.2},{0.2,0.6,0.2},{0.2,0.2,0.6}};
67 static double wt4[] = {-D,E,E,E};
68
69 static double rst6[][3] = {{H,I,I},{I,H,I},{I,I,H},
70 {J,K,K},{K,J,K},{K,K,J}};
71 static double wt6[] = {F,F,F,G,G,G};
72
73 static double rst7[][3] = {{A,A,A},
74 {O,P,P},{P,O,P},{P,P,O},
75 {Q,Q,R},{Q,R,Q},{R,Q,Q}};
76 static double wt7[] = {L,M,M,M,N,N,N};
77
78 static double rst12[][3] = {{V,W,1.0-V-W},{W,V,1.0-V-W},{W,W,1.0-W-W},
79 {X,Y,1.0-X-Y},{Y,X,1.0-X-Y},{Y,Y,1.0-Y-Y},
80 {Z,AA,1.0-Z-AA},{AA,Z,1.0-Z-AA},{Z,BB,1.0-Z-BB},
81 {AA,BB,1.0-AA-BB},{BB,AA,1.0-BB-AA},{BB,Z,1.0-BB-Z}};
82
83 static double wt12[] = {S,S,S,T,T,T,U,U,U,U,U,U};
84
triIntPnt(int nint,DARR3 ** bcord,double ** wt)85 int triIntPnt(int nint, DARR3 **bcord, double **wt)
86 {
87 int retval = 1 ;
88 if( nint == 3 ) {*bcord = rst3 ; *wt = wt3; }
89 else if( nint == 1 ){*bcord = rst1 ; *wt = wt1; }
90 else if( nint == 4 ){*bcord = rst4 ; *wt = wt4; }
91 else if( nint == 6 ){*bcord = rst6 ; *wt = wt6; }
92 else if( nint == 7 ){*bcord = rst7 ; *wt = wt7; }
93 else if( nint == 12){*bcord = rst12; *wt = wt12;}
94 else
95 {
96 fprintf(stderr,"\n%d integration points unsupported in symtri.c; give {1,3,4,6,7,12}\n",nint);
97 retval = 0;
98 }
99 return retval ;
100 }
101
102
103
104