polymake_conversion.h File Reference

#include "kernel/mod2.h"
#include <gmpxx.h>
#include <polymake/Main.h>
#include <polymake/Matrix.h>
#include <polymake/Rational.h>
#include <polymake/Integer.h>
#include <polymake/Set.h>
#include <polymake/common/lattice_tools.h>
#include <polymake/IncidenceMatrix.h>
#include "gfanlib/gfanlib.h"
#include "gfanlib/gfanlib_q.h"
#include "coeffs/numbers.h"
#include "coeffs/bigintmat.h"
#include "misc/intvec.h"
#include "Singular/lists.h"

Go to the source code of this file.

Functions
polymake::Integer	GfInteger2PmInteger (const gfan::Integer &gi)
polymake::Rational	GfRational2PmRational (const gfan::Rational &gr)
polymake::Vector< polymake::Integer >	Intvec2PmVectorInteger (const intvec *iv)
polymake::Matrix< polymake::Integer >	GfZMatrix2PmMatrixInteger (const gfan::ZMatrix *zm)
polymake::Matrix< polymake::Rational >	GfQMatrix2PmMatrixRational (const gfan::QMatrix *qm)
gfan::Integer	PmInteger2GfInteger (const polymake::Integer &pi)
gfan::Rational	PmRational2GfRational (const polymake::Rational &pr)
gfan::ZMatrix	PmMatrixInteger2GfZMatrix (const polymake::Matrix< polymake::Integer > *mi)
gfan::QMatrix	PmMatrixRational2GfQMatrix (const polymake::Matrix< polymake::Rational > *mr)
int	PmInteger2Int (const polymake::Integer &pi, bool &ok)
intvec *	PmVectorInteger2Intvec (const polymake::Vector< polymake::Integer > *vi, bool &ok)
intvec *	PmMatrixInteger2Intvec (polymake::Matrix< polymake::Integer > *mi, bool &ok)
lists	PmIncidenceMatrix2ListOfIntvecs (polymake::IncidenceMatrix< polymake::NonSymmetric > *icmat)
lists	PmAdjacencyMatrix2ListOfEdges (polymake::IncidenceMatrix< polymake::NonSymmetric > *icmat)
intvec *	PmSetInteger2Intvec (polymake::Set< polymake::Integer > *si, bool &b)
number	PmInteger2Number (const polymake::Integer &pi)
bigintmat *	PmMatrixInteger2Bigintmat (polymake::Matrix< polymake::Integer > *mi)
polymake::Matrix< polymake::Integer >	Intvec2PmMatrixInteger (const intvec *im)
gfan::ZCone *	PmCone2ZCone (polymake::perl::Object *pc)
gfan::ZCone *	PmPolytope2ZPolytope (polymake::perl::Object *pp)
gfan::ZFan *	PmFan2ZFan (polymake::perl::Object *pf)
polymake::perl::Object *	ZCone2PmCone (gfan::ZCone *zc)
polymake::perl::Object *	ZPolytope2PmPolytope (gfan::ZCone *zc)
polymake::perl::Object *	ZFan2PmFan (gfan::ZFan *zf)

Function Documentation

GfInteger2PmInteger()

polymake::Integer GfInteger2PmInteger

(

const gfan::Integer &

gi

)

Definition at line 33 of file polymake_conversion.cc.

{
  mpz_t cache; mpz_init(cache);
  gi.setGmp(cache);
  polymake::Integer pi(cache);
  return pi;
}

GfQMatrix2PmMatrixRational()

polymake::Matrix< polymake::Rational > GfQMatrix2PmMatrixRational

(

const gfan::QMatrix *

qm

)

Definition at line 70 of file polymake_conversion.cc.

{
  int rows=qm->getHeight();
  int cols=qm->getWidth();
  polymake::Matrix<polymake::Rational> mr(rows,cols);
  for(int r=1; r<=rows; r++)
    for(int c=1; c<=cols; c++)
      mr(r-1,c-1) = GfRational2PmRational((*qm)[r-1][c-1]);
  return mr;
}

GfRational2PmRational()

polymake::Rational GfRational2PmRational

(

const gfan::Rational &

gr

)

Definition at line 41 of file polymake_conversion.cc.

{
  mpq_t cache; mpq_init(cache);
  gr.setGmp(cache);
  polymake::Rational pr(cache);
  return pr;
}

GfZMatrix2PmMatrixInteger()

polymake::Matrix< polymake::Integer > GfZMatrix2PmMatrixInteger

(

const gfan::ZMatrix *

zm

)

Definition at line 59 of file polymake_conversion.cc.

{
  int rows=zm->getHeight();
  int cols=zm->getWidth();
  polymake::Matrix<polymake::Integer> mi(rows,cols);
  for(int r=1; r<=rows; r++)
    for(int c=1; c<=cols; c++)
      mi(r-1,c-1) = GfInteger2PmInteger((*zm)[r-1][c-1]);
  return mi;
}

Intvec2PmMatrixInteger()

polymake::Matrix< polymake::Integer > Intvec2PmMatrixInteger

(

const intvec *

im

)

Definition at line 272 of file polymake_conversion.cc.

{
  int rows=im->rows();
  int cols=im->cols();
  polymake::Matrix<polymake::Integer> mi(rows,cols);
  for(int r=0; r<rows; r++)
    for(int c=0; c<cols; c++)
      mi(r,c) = polymake::Integer(IMATELEM(*im, r+1, c+1));
  return mi;
}

Intvec2PmVectorInteger()

polymake::Vector< polymake::Integer > Intvec2PmVectorInteger

(

const intvec *

iv

)

Definition at line 49 of file polymake_conversion.cc.

{
  polymake::Vector<polymake::Integer> vi(iv->length());
  for(int i=1; i<=iv->length(); i++)
  {
    vi[i-1]=(*iv)[i-1];
  }
  return vi;
}

PmAdjacencyMatrix2ListOfEdges()

lists PmAdjacencyMatrix2ListOfEdges

(

polymake::IncidenceMatrix< polymake::NonSymmetric > *

icmat

)

Definition at line 226 of file polymake_conversion.cc.

{
  int rows = icmat->rows();
  int cols = icmat->cols();
 
  // counting number of edges
  int i=0; int r, c;
  for (r=0; r<rows; r++)
  {
    for (c=0; c<cols; c++)
    {
      if ((*icmat).row(r).exists(c) && r<c)
        i++;
    }
  }
 
  lists L = (lists)omAllocBin(slists_bin);
  L->Init(i);
 
  i=0;
  for (r=0; r<rows; r++)
  {
    for (c=0; c<cols; c++)
    {
      if ((*icmat).row(r).exists(c) && r<c)
      {
        intvec* iv = new intvec(2);
        (*iv)[0]=r; (*iv)[1]=c;
        L->m[i].rtyp = INTVEC_CMD;
        L->m[i].data = (void*) iv;
        i++;
      }
    }
  }
 
  return L;
}

PmCone2ZCone()

gfan::ZCone * PmCone2ZCone

(

polymake::perl::Object *

pc

)

Definition at line 286 of file polymake_conversion.cc.

{
  if (pc->isa("Cone"))
  {
    polymake::Integer ambientdim1 = pc->give("CONE_AMBIENT_DIM");
    bool ok=true; int ambientdim2 = PmInteger2Int(ambientdim1, ok);
    if (!ok)
    {
      WerrorS("PmCone2ZCone: overflow while converting polymake::Integer to int");
    }
    polymake::Matrix<polymake::Rational> ineqrational = pc->give("FACETS");
    polymake::Matrix<polymake::Rational> eqrational = pc->give("LINEAR_SPAN");
    // polymake::Matrix<polymake::Rational> exraysrational = pc->give("RAYS");
    // polymake::Matrix<polymake::Rational> linrational = pc->give("LINEALITY_SPACE");
 
    gfan::ZMatrix zv, zw, zx, zy, zz;
    // the following branching statements are to cover cases in which polymake returns empty matrices
    // by convention, gfanlib ignores empty matrices, hence zero matrices of right dimensions have to be supplied
    if (ineqrational.cols()!=0)
    {
      polymake::Matrix<polymake::Integer> ineqinteger = polymake::common::primitive(ineqrational);
      zv = PmMatrixInteger2GfZMatrix(&ineqinteger);
    }
    else
      zv = gfan::ZMatrix(0, ambientdim2);
    if (eqrational.cols()!=0)
    {
      polymake::Matrix<polymake::Integer> eqinteger = polymake::common::primitive(eqrational);
      zw = PmMatrixInteger2GfZMatrix(&eqinteger);
    }
    else
      zw = gfan::ZMatrix(0, ambientdim2);
    // if (exraysrational.cols()!=0)
    // {
    //   polymake::Matrix<polymake::Integer> exraysinteger = polymake::common::primitive(exraysrational);
    //   zx = PmMatrixInteger2GfZMatrix(&exraysinteger);
    // }
    // else
    //   zx = gfan::ZMatrix(0, ambientdim2);
    // if (linrational.cols()!=0)
    // {
    //   polymake::Matrix<polymake::Integer> lininteger = polymake::common::primitive(linrational);
    //   zy = PmMatrixInteger2GfZMatrix(&lininteger);
    // }
    // else
    //   zy = gfan::ZMatrix(0, ambientdim2);
 
    // gfan::ZCone* zc = new gfan::ZCone(zv,zw,zx,zy,zz,3);
    gfan::ZCone* zc = new gfan::ZCone(zv,zw,3);
    return zc;
  }
  WerrorS("PmCone2ZCone: unexpected parameters");
  return NULL;
}

PmFan2ZFan()

gfan::ZFan * PmFan2ZFan

(

polymake::perl::Object *

pf

)

Definition at line 399 of file polymake_conversion.cc.

{
  if (pf->isa("PolyhedralFan"))
  {
    int d = (int) pf->give("FAN_AMBIENT_DIM");
    gfan::ZFan* zf = new gfan::ZFan(d);
 
    int n = pf->give("N_MAXIMAL_CONES");
    for (int i=0; i<n; i++)
    {
      #if (POLYMAKE_VERSION >= 305)
      polymake::perl::Object pmcone=pf->call_method("cone",i);
      #else
      polymake::perl::Object pmcone=pf->CallPolymakeMethod("cone",i);
      #endif
      gfan::ZCone* zc=PmCone2ZCone(&pmcone);
      zf->insert(*zc);
    }
    return zf;
  }
  WerrorS("PmFan2ZFan: unexpected parameters");
  return NULL;
}

PmIncidenceMatrix2ListOfIntvecs()

lists PmIncidenceMatrix2ListOfIntvecs

(

polymake::IncidenceMatrix< polymake::NonSymmetric > *

icmat

)

Definition at line 203 of file polymake_conversion.cc.

{
  int rows = icmat->rows();
  int cols = icmat->cols();
  lists L = (lists)omAllocBin(slists_bin);
  L->Init(rows);
 
  for (int r = 0; r < rows; r++)
  {
    intvec* iv = new intvec(cols); int i=0;
    for (int c = 0; c < cols; c++)
    {
      if ((*icmat).row(r).exists(c))
      { (*iv)[i]=c; i++; }
    }
    iv->resize(i);
    L->m[r].rtyp = INTVEC_CMD;
    L->m[r].data = (void*) iv;
  }
 
  return L;
}

PmInteger2GfInteger()

gfan::Integer PmInteger2GfInteger

(

const polymake::Integer &

pi

)

Definition at line 83 of file polymake_conversion.cc.

{
  mpz_class cache(pi.get_rep());
  gfan::Integer gi(cache.get_mpz_t());
  return gi;
}

PmInteger2Int()

int PmInteger2Int	(	const polymake::Integer &	pi,
		bool &	ok
	)

Definition at line 121 of file polymake_conversion.cc.

{
  int i=0;
  try
  {
#if POLYMAKE_VERSION >= 301 /* 3.1 */
    i=int(pi);
#else
    i = pi.to_int();
#endif
  }
  catch (const std::exception& ex)
  {
    WerrorS("ERROR: "); WerrorS(ex.what()); WerrorS("\n");
    ok = false;
  }
  return i;
}

PmInteger2Number()

number PmInteger2Number

(

const polymake::Integer &

pi

)

Definition at line 140 of file polymake_conversion.cc.

{
  mpz_class cache(pi.get_rep());
  long m = 268435456;
  if(mpz_cmp_si(cache.get_mpz_t(),m))
  {
    int temp = (int) mpz_get_si(cache.get_mpz_t());
    return n_Init(temp,coeffs_BIGINT);
  }
  else
    return n_InitMPZ(cache.get_mpz_t(),coeffs_BIGINT);
}

PmMatrixInteger2Bigintmat()

bigintmat * PmMatrixInteger2Bigintmat

(

polymake::Matrix< polymake::Integer > *

mi

)

Definition at line 182 of file polymake_conversion.cc.

{
  int rows = mi->rows();
  int cols = mi->cols();
  bigintmat* bim= new bigintmat(rows,cols,coeffs_BIGINT);
#if POLYMAKE_VERSION >= 301 /*3.1*/
  pm::array_traits<pm::Integer>::iterator pi = concat_rows(*mi).begin();
#else
  const polymake::Integer* pi = concat_rows(*mi).begin();
#endif
  for (int r = 1; r <= rows; r++)
    for (int c = 1; c <= cols; c++)
    {
      number temp = PmInteger2Number(*pi);
      bim->set(r,c,temp);
      n_Delete(&temp,coeffs_BIGINT);
      pi++;
    }
  return bim;
}

PmMatrixInteger2GfZMatrix()

gfan::ZMatrix PmMatrixInteger2GfZMatrix

(

const polymake::Matrix< polymake::Integer > *

mi

)

Definition at line 97 of file polymake_conversion.cc.

{
  int rows=mi->rows();
  int cols=mi->cols();
  gfan::ZMatrix zm(rows,cols);
  for(int r=1; r<=rows; r++)
    for(int c=1; c<=cols; c++)
      zm[r-1][c-1] = PmInteger2GfInteger((*mi)(r-1,c-1));
  return zm;
}

PmMatrixInteger2Intvec()

intvec * PmMatrixInteger2Intvec	(	polymake::Matrix< polymake::Integer > *	mi,
		bool &	ok
	)

Definition at line 163 of file polymake_conversion.cc.

{
  int rows = mi->rows();
  int cols = mi->cols();
  intvec* iv = new intvec(rows,cols,0);
#if POLYMAKE_VERSION >= 301 /*3.1*/
  pm::array_traits<pm::Integer>::iterator pi = concat_rows(*mi).begin();
#else
  const polymake::Integer* pi = concat_rows(*mi).begin();
#endif
  for (int r = 1; r <= rows; r++)
    for (int c = 1; c <= cols; c++)
    {
      IMATELEM(*iv,r,c) = PmInteger2Int(*pi, ok);
      pi++;
    }
  return iv;
}

PmMatrixRational2GfQMatrix()

gfan::QMatrix PmMatrixRational2GfQMatrix

(

const polymake::Matrix< polymake::Rational > *

mr

)

Definition at line 108 of file polymake_conversion.cc.

{
  int rows=mr->rows();
  int cols=mr->cols();
  gfan::QMatrix qm(rows,cols);
  for(int r=1; r<=rows; r++)
    for(int c=1; c<=cols; c++)
      qm[r-1][c-1] = PmRational2GfRational((*mr)(r-1,c-1));
  return qm;
}

PmPolytope2ZPolytope()

gfan::ZCone * PmPolytope2ZPolytope

(

polymake::perl::Object *

pp

)

Definition at line 341 of file polymake_conversion.cc.

{
  if (pp->isa("Polytope<Rational>"))
  {
    polymake::Integer ambientdim1 = pp->give("CONE_AMBIENT_DIM");
    bool ok=true; int ambientdim2 = PmInteger2Int(ambientdim1, ok);
    if (!ok)
    {
      WerrorS("overflow while converting polymake::Integer to int");
    }
    polymake::Matrix<polymake::Rational> ineqrational = pp->give("FACETS");
    polymake::Matrix<polymake::Rational> eqrational = pp->give("AFFINE_HULL");
    // polymake::Matrix<polymake::Rational> vertrational = pp->give("VERTICES");
    // polymake::Matrix<polymake::Rational> linrational = pp->give("LINEALITY_SPACE");
 
    gfan::ZMatrix zv, zw;
    // the following branching statements are to cover the cases when polymake returns empty matrices
    // by convention, gfanlib ignores empty matrices, hence zero matrices of right dimensions have to be supplied
    if (ineqrational.cols()!=0)
    {
      polymake::Matrix<polymake::Integer> ineqinteger = polymake::common::primitive(ineqrational);
      zv = PmMatrixInteger2GfZMatrix(&ineqinteger);
    }
    else
      zv = gfan::ZMatrix(0, ambientdim2);
 
    if (eqrational.cols()!=0)
    {
      polymake::Matrix<polymake::Integer> eqinteger = polymake::common::primitive(eqrational);
      zw = PmMatrixInteger2GfZMatrix(&eqinteger);
    }
    else
      zw = gfan::ZMatrix(0, ambientdim2);
 
    // if (vertrational.cols()!=0)
    // {
    //   polymake::Matrix<polymake::Integer> vertinteger = polymake::common::primitive(vertrational);
    //   zx = PmMatrixInteger2GfZMatrix(&vertinteger);
    // }
    // else
    //   zx = gfan::ZMatrix(0, ambientdim2);
    // if (linrational.cols()!=0)
    //   {
    //     polymake::Matrix<polymake::Integer> lininteger = polymake::common::primitive(linrational);
    //     zy = PmMatrixInteger2GfZMatrix(&lininteger);
    //   }
    // else
    //   zy = gfan::ZMatrix(0, ambientdim2);
 
    // gfan::ZCone* zp = new gfan::ZCone(zv,zw,zx,zy,zz,3);
    gfan::ZCone* zp = new gfan::ZCone(zv,zw,3);
 
    return zp;
  }
  WerrorS("PmPolytope2ZPolytope: unexpected parameters");
  return NULL;
}

PmRational2GfRational()

gfan::Rational PmRational2GfRational

(

const polymake::Rational &

pr

)

Definition at line 90 of file polymake_conversion.cc.

{
  mpq_class cache(pr.get_rep());
  gfan::Rational gr(cache.get_mpq_t());
  return gr;
}

PmSetInteger2Intvec()

intvec * PmSetInteger2Intvec	(	polymake::Set< polymake::Integer > *	si,
		bool &	b
	)

Definition at line 264 of file polymake_conversion.cc.

{
  polymake::Vector<polymake::Integer> vi(*si);
  return PmVectorInteger2Intvec(&vi,b);
}

PmVectorInteger2Intvec()

intvec * PmVectorInteger2Intvec	(	const polymake::Vector< polymake::Integer > *	vi,
		bool &	ok
	)

Definition at line 153 of file polymake_conversion.cc.

{
  intvec* iv = new intvec(vi->size());
  for(int i=1; i<=vi->size(); i++)
  {
    (*iv)[i-1] = PmInteger2Int((*vi)[i-1],ok);
  }
  return iv;
}

ZCone2PmCone()

polymake::perl::Object * ZCone2PmCone

(

gfan::ZCone *

zc

)

Definition at line 423 of file polymake_conversion.cc.

{
  polymake::perl::Object* gc = new polymake::perl::Object("Cone<Rational>");
 
  gfan::ZMatrix inequalities = zc->getInequalities();
  gc->take("FACETS") << GfZMatrix2PmMatrixInteger(&inequalities);
 
  gfan::ZMatrix equations = zc->getEquations();
  gc->take("LINEAR_SPAN") << GfZMatrix2PmMatrixInteger(&equations);
 
  // if(zc->areExtremeRaysKnown())
  //   {
  //     gfan::ZMatrix extremeRays = zc->extremeRays();
  //     gc->take("RAYS") << GfZMatrix2PmMatrixInteger(&extremeRays);
  //   }
 
  // if(zc->areGeneratorsOfLinealitySpaceKnown())
  //   {
  //     gfan::ZMatrix lineality = zc->generatorsOfLinealitySpace();
  //     gc->take("LINEALITY_SPACE") << GfZMatrix2PmMatrixInteger(&lineality);
  //   }
 
  return gc;
}

ZFan2PmFan()

polymake::perl::Object * ZFan2PmFan

(

gfan::ZFan *

zf

)

Definition at line 530 of file polymake_conversion.cc.

{
  polymake::perl::Object* pf = new polymake::perl::Object("PolyhedralFan");
 
  polymake::Matrix<polymake::Integer> zm = raysOf(zf);
  pf->take("RAYS") << zm;  // using rays here instead of INPUT_RAYS prevents redundant computations
 
  polymake::Array<polymake::Set<int> > ar = conesOf(zf);
  pf->take("MAXIMAL_CONES") << ar;
 
  return pf;
}

ZPolytope2PmPolytope()

polymake::perl::Object * ZPolytope2PmPolytope

(

gfan::ZCone *

zc

)

Definition at line 448 of file polymake_conversion.cc.

{
  polymake::perl::Object* pp = new polymake::perl::Object("Polytope<Rational>");
 
  gfan::ZMatrix inequalities = zc->getInequalities();
  pp->take("FACETS") << GfZMatrix2PmMatrixInteger(&inequalities);
 
  gfan::ZMatrix equations = zc->getEquations();
  pp->take("LINEAR_SPAN") << GfZMatrix2PmMatrixInteger(&equations);
 
  // if(zc->areExtremeRaysKnown())
  //   {
  //     gfan::ZMatrix vertices = zc->extremeRays();
  //     pp->take("VERTICES") << GfZMatrix2PmMatrixInteger(&vertices);
  //   }
 
  return pp;
}