void
extreme(int nlhs, mxArray * plhs[], int nrhs, const mxArray * prhs[])
{
dd_PolyhedraPtr P;
dd_ErrorType err;
dd_MatrixPtr H,V;
dd_SetFamilyPtr GI, GA;
if (nrhs == 1 && nlhs <=2 && mxIsStruct(prhs[0])) {
dd_set_global_constants(); /* First, this must be called. */
H = FT_get_H_MatrixPtr(prhs[0]);
P = dd_DDMatrix2Poly(H, &err); /* compute the second representation */
if (err == dd_NoError) {
V = dd_CopyGenerators(P);
GI=dd_CopyInputIncidence(P);
GA=dd_CopyAdjacency(P);
plhs[0] = FT_set_V_MatrixPtr(V);
plhs[1] = ZH_set_Vlist(GI,GA);
dd_FreeSetFamily(GA);
dd_FreeSetFamily(GI);
dd_FreeMatrix(V);
} else {
dd_WriteErrorMessages(stdout,err);
mexErrMsgTxt("CDD returned an error, see above(!) for details");
}
dd_FreeMatrix(H);
dd_FreePolyhedra(P);
return;
} else {
mexErrMsgTxt("extreme expects an H input struct and produces a V output struct");
}
}
void
file_ine(int nlhs, mxArray * plhs[], int nrhs, const mxArray * prhs[])
/* Ine file input, V output, similar to extreme */
{
dd_PolyhedraPtr poly;
dd_MatrixPtr M;
dd_ErrorType err;
char *inputfile;
FILE *reading=NULL;
dd_MatrixPtr A, G;
dd_SetFamilyPtr GI,GA;
int buflen, status;
dd_set_global_constants(); /* First, this must be called. */
if (nrhs == 1 && nlhs <=2 && mxIsChar(prhs[0])) {
/* dd_SetInputFile(&reading,inputfile, &err); */
buflen = mxGetN(prhs[0]) + 1;
inputfile= mxCalloc(buflen, sizeof(char));
status = mxGetString(prhs[0], inputfile, buflen);
if ( (reading = fopen(inputfile,"r") )== NULL) {
mxErrMsgTxt("Input file not found\n");
return;
}
printf(" Input file opened. \n");
M=dd_PolyFile2Matrix(reading, &err);
if (err==dd_NoError) {
poly=dd_DDMatrix2Poly(M, &err); /* compute the second representation */
if (err!=dd_NoError) {
dd_WriteErrorMessages(stdout,err);
mxErrMsgTxt("CDD internal error\n");
return;
}
A=dd_CopyInequalities(poly);
G=dd_CopyGenerators(poly);
GI=dd_CopyInputIncidence(poly);
GA=dd_CopyAdjacency(poly);
plhs[0] = FT_set_V_MatrixPtr(G);
plhs[1] = ZH_set_Vlist(GI,GA);
dd_FreePolyhedra(poly);
dd_FreeMatrix(M);
return;
}
}
else {
mexErrMsgTxt("file-ine expects an file input");
}
return;
}
void allfacets2(int n_input, int d_input, double *g_input)
/* output facets, incidences and adjacency */
{
dd_PolyhedraPtr poly;
dd_MatrixPtr A=NULL,G=NULL;
dd_SetFamilyPtr AI=NULL, AA=NULL;
dd_SetFamilyPtr GI=NULL, GA=NULL;
dd_rowrange i,n;
dd_colrange j,d;
dd_ErrorType err;
n=(dd_rowrange)n_input; d=(dd_colrange)d_input;
G=dd_CreateMatrix(n,d);
for (i=0; i<n; i++){
for (j=0; j<d; j++) dd_set_d(G->matrix[i][j],g_input[i*d+j]);
}
G->representation=dd_Generator;
poly=dd_DDMatrix2Poly(G, &err);
/* compute the second (inequality) representation */
if (err==dd_NoError){
A=dd_CopyInequalities(poly);
AI=dd_CopyIncidence(poly);
AA=dd_CopyAdjacency(poly);
GI=dd_CopyInputIncidence(poly);
GA=dd_CopyInputAdjacency(poly);
MLPutFunction(stdlink,"List",5);
dd_MLWriteMatrix(A);
dd_MLWriteSetFamily(AI);
dd_MLWriteSetFamily(AA);
dd_MLWriteSetFamily(GI);
dd_MLWriteSetFamily(GA);
} else {
dd_MLWriteError(poly);
}
dd_FreeMatrix(A);
dd_FreeMatrix(G);
dd_FreeSetFamily(AI);
dd_FreeSetFamily(AA);
dd_FreeSetFamily(GI);
dd_FreeSetFamily(GA);
}
void allvertices2(int m_input, int d_input, double *a_input)
/* output vertices, incidences and adjacency */
{
dd_PolyhedraPtr poly;
dd_MatrixPtr A=NULL,G=NULL;
dd_SetFamilyPtr GI=NULL,GA=NULL;
dd_SetFamilyPtr AI=NULL,AA=NULL;
dd_rowrange i,m;
dd_colrange j,d;
dd_ErrorType err;
m=(dd_rowrange)m_input; d=(dd_colrange)d_input;
A=dd_CreateMatrix(m,d);
for (i=0; i<m; i++){
for (j=0; j<d; j++) dd_set_d(A->matrix[i][j],a_input[i*d+j]);
}
A->representation=dd_Inequality;
poly=dd_DDMatrix2Poly(A, &err);
/* compute the second (generator) representation */
if (err==dd_NoError){
G=dd_CopyGenerators(poly);
GI=dd_CopyIncidence(poly);
GA=dd_CopyAdjacency(poly);
AI=dd_CopyInputIncidence(poly);
AA=dd_CopyInputAdjacency(poly);
MLPutFunction(stdlink,"List",5);
dd_MLWriteMatrix(G);
dd_MLWriteSetFamily(GI);
dd_MLWriteSetFamily(GA);
dd_MLWriteSetFamily(AI);
dd_MLWriteSetFamily(AA);
} else {
dd_MLWriteError(poly);
}
dd_FreeMatrix(A);
dd_FreeMatrix(G);
dd_FreeSetFamily(GI);
dd_FreeSetFamily(GA);
dd_FreeSetFamily(AI);
dd_FreeSetFamily(AA);
}
