/** handle given linear constraint information */
static
SCIP_RETCODE handleLinearCons(
SCIP* scip, /**< SCIP data structure */
SCIP_VAR** vars, /**< array of variables */
SCIP_Real* vals, /**< array of coefficients values (or NULL if all coefficient values are 1) */
int nvars, /**< number of variables */
SCIP_Bool transformed, /**< transformed constraint? */
SparseGraph* G /**< graph */
)
{
int v;
SCIP_VAR** activevars;
SCIP_Real* activevals;
int nactivevars;
SCIP_Real activeconstant = 0.0;
assert( scip != NULL );
assert( nvars > 0 );
/* duplicate variable and value array */
nactivevars = nvars;
SCIP_CALL( SCIPduplicateBufferArray(scip, &activevars, vars, nactivevars ) );
if( vals != NULL )
SCIP_CALL( SCIPduplicateBufferArray(scip, &activevals, vals, nactivevars ) );
else
{
SCIP_CALL( SCIPallocBufferArray(scip, &activevals, nactivevars) );
for( v = 0; v < nactivevars; ++v )
activevals[v] = 1.0;
}
/* retransform given variables to active variables */
SCIP_CALL( getActiveVariables(scip, activevars, activevals, &nactivevars, &activeconstant, transformed) );
/* print constraint */
SCIP_CALL( createEdgesFromRow(scip, activevars, activevals, nactivevars, G) );
/* free buffer arrays */
SCIPfreeBufferArray(scip, &activevars);
SCIPfreeBufferArray(scip, &activevals);
return SCIP_OKAY;
}
/** prints given linear constraint information in PPM format to file stream */
static
SCIP_RETCODE printLinearCons(
SCIP* scip, /**< SCIP data structure */
FILE* file, /**< output file (or NULL for standard output) */
SCIP_READERDATA* readerdata, /**< information for reader */
SCIP_VAR** vars, /**< array of variables */
SCIP_Real* vals, /**< array of coefficients values (or NULL if all coefficient values are 1) */
int nvars, /**< number of variables */
int ncompletevars, /**< number of variables in whole problem */
SCIP_Bool transformed, /**< transformed constraint? */
SCIP_Real* maxcoef, /**< maximal coefficient */
SCIP_Bool printbool /**< print row or calculate maximum coefficient */
)
{
int v;
SCIP_VAR** activevars;
SCIP_Real* activevals;
int nactivevars;
SCIP_Real activeconstant = 0.0;
assert( scip != NULL );
assert( vars != NULL );
assert( nvars > 0 );
assert( readerdata != NULL );
/* duplicate variable and value array */
nactivevars = nvars;
SCIP_CALL( SCIPduplicateBufferArray(scip, &activevars, vars, nactivevars ) );
if( vals != NULL )
{
SCIP_CALL( SCIPduplicateBufferArray(scip, &activevals, vals, nactivevars ) );
}
else
{
SCIP_CALL( SCIPallocBufferArray(scip, &activevals, nactivevars) );
for( v = 0; v < nactivevars; ++v )
activevals[v] = 1.0;
}
/* retransform given variables to active variables */
SCIP_CALL( getActiveVariables(scip, activevars, activevals, &nactivevars, &activeconstant, transformed) );
if(!readerdata->rgb_relativ)
{
if(!printbool)
for(v = 0; v < nactivevars; ++v)
{
if( REALABS(activevals[v]) > *maxcoef)
*maxcoef = REALABS(activevals[v]);
}
else
{
assert (*maxcoef > 0);
/* print constraint */
printRow(scip, file, readerdata, activevars, activevals, nactivevars, ncompletevars, *maxcoef);
}
}
else
{
/* print constraint */
printRow(scip, file, readerdata, activevars, activevals, nactivevars, ncompletevars, *maxcoef);
}
/* free buffer arrays */
SCIPfreeBufferArray(scip, &activevars);
SCIPfreeBufferArray(scip, &activevals);
return SCIP_OKAY;
}
