int main()
{
int itranfrm[3];
int index_file,index_base,nzone,index_zone,n1to1,index_conn;
char donorname[33],connectname[33];
cgsize_t ipnts[2][3],ipntsdonor[2][3];
/* READ 1-TO-1 CONNECTIVITY INFORMATION FROM EXISTING CGNS FILE */
/* open CGNS file for read-only */
if (cg_open("grid_c.cgns",CG_MODE_READ,&index_file)) cg_error_exit();
/* we know there is only one base (real working code would check!) */
index_base=1;
/* get number of zones (should be 2 for our case) */
cg_nzones(index_file,index_base,&nzone);
if (nzone != 2)
{
printf("\nError. This program expects 2 zones. %d read.\n",nzone);
return 1;
}
/* loop over zones */
for (index_zone=1; index_zone <= nzone; ++index_zone)
{
/* find out how many 1-to-1 interfaces there are in this zone */
/* (for this program, there should only be one) */
cg_n1to1(index_file,index_base,index_zone,&n1to1);
if (n1to1 != 1)
{
printf("\nError. Expecting one 1-to-1 interface. %i read\n",n1to1);
return 1;
}
index_conn=n1to1;
/* read 1-to-1 info */
cg_1to1_read(index_file,index_base,index_zone,index_conn,connectname,donorname,
ipnts[0],ipntsdonor[0],itranfrm);
printf("\nIn zone %i:\n",index_zone);
printf(" donor name=%s\n",donorname);
printf(" range (this zone)=%i,%i,%i,%i,%i,%i\n",(int)ipnts[0][0],
(int)ipnts[0][1],(int)ipnts[0][2],(int)ipnts[1][0],
(int)ipnts[1][1],(int)ipnts[1][2]);
printf(" range (donor zone)=%i,%i,%i,%i,%i,%i\n",(int)ipntsdonor[0][0],
(int)ipntsdonor[0][1],(int)ipntsdonor[0][2],(int)ipntsdonor[1][0],
(int)ipntsdonor[1][1],(int)ipntsdonor[1][2]);
printf(" transform=%i,%i,%i\n",itranfrm[0],itranfrm[1],itranfrm[2]);
}
/* close CGNS file */
cg_close(index_file);
printf("\nSuccessfully read 1-to-1 connectivity info from file grid_c.cgns\n");
return 0;
}
int main()
{
int ilo[2],ihi[2],jlo[2],jhi[2],klo[2],khi[2];
int icount,j,k;
int index_file,index_base,nzone,index_zone,nconns,n1to1,index_conn,iz;
char donorname[33],zonename0[33],zonename1[33],zn[33];
cgsize_t isize[3][3],ipnts[maxcount][3],ipntsdonor[maxcount][3];
/* WRITE GENERAL CONNECTIVITY INFORMATION TO EXISTING CGNS FILE */
/* open CGNS file for modify */
if (cg_open("grid_c.cgns",CG_MODE_MODIFY,&index_file)) cg_error_exit();
/* we know there is only one base (real working code would check!) */
index_base=1;
/* get number of zones (should be 2 for our case) */
cg_nzones(index_file,index_base,&nzone);
if (nzone != 2)
{
printf("\nError. This program expects 2 zones. %d read.\n",nzone);
return 1;
}
/* loop over zones to get zone sizes and names */
for (index_zone=0; index_zone < nzone; ++index_zone)
{
iz=index_zone+1;
cg_zone_read(index_file,index_base,iz,zn,isize[0]);
if (index_zone == 0)
{
strcpy(zonename0,zn);
}
else
{
strcpy(zonename1,zn);
}
ilo[index_zone]=1;
ihi[index_zone]=isize[0][0];
jlo[index_zone]=1;
jhi[index_zone]=isize[0][1];
klo[index_zone]=1;
khi[index_zone]=isize[0][2];
}
/* loop over zones again */
for (index_zone=0; index_zone < nzone; ++index_zone)
{
iz=index_zone+1;
/* for this program, there should be no existing connectivity info: */
cg_nconns(index_file,index_base,iz,&nconns);
if (nconns != 0)
{
printf("\nError. This program expects no interfaces yet. %d read.\n",nconns);
return 1;
}
cg_n1to1(index_file,index_base,iz,&n1to1);
if (n1to1 != 0)
{
printf("\nError. This program expects no interfaces yet. %d read.\n",n1to1);
return 1;
}
/* set up point lists */
if (index_zone == 0)
{
strcpy(donorname,zonename1);
icount=0;
for (j=jlo[index_zone]; j <= jhi[index_zone]; j++)
{
for (k=klo[index_zone]; k <= khi[index_zone]; k++)
{
ipnts[icount][0]=ihi[0];
ipnts[icount][1]=j;
ipnts[icount][2]=k;
ipntsdonor[icount][0]=ilo[1];
ipntsdonor[icount][1]=j;
ipntsdonor[icount][2]=k;
icount=icount+1;
}
}
if (icount > maxcount)
{
printf("\nError. Need to increase maxcount to at least %i\n",icount);
return 1;
}
}
else
{
strcpy(donorname,zonename0);
icount=0;
for (j=jlo[index_zone]; j <= jhi[index_zone]; j++)
{
for (k=klo[index_zone]; k <= khi[index_zone]; k++)
{
ipnts[icount][0]=ilo[1];
ipnts[icount][1]=j;
ipnts[icount][2]=k;
ipntsdonor[icount][0]=ihi[0];
ipntsdonor[icount][1]=j;
ipntsdonor[icount][2]=k;
icount=icount+1;
}
}
if (icount > maxcount)
{
printf("\nError. Need to increase maxcount to at least %i\n",icount);
return 1;
}
}
/* write integer connectivity info (user can give any name) */
cg_conn_write(index_file,index_base,iz,"GenInterface",Vertex,Abutting1to1,
PointList,icount,ipnts[0],donorname,Structured,
PointListDonor,Integer,icount,ipntsdonor[0],&index_conn);
}
/* close CGNS file */
cg_close(index_file);
printf("\nSuccessfully added 1-to-1 connectivity info to file grid_c.cgns (using GENERAL method)\n");
return 0;
}
int main()
{
int ilo[2],ihi[2],jlo[2],jhi[2],klo[2],khi[2];
int itranfrm[3];
int index_file,index_base,nzone,index_zone,nconns,n1to1,index_conn,iz;
char donorname[33],zonename0[33],zonename1[33],zn[33];
cgsize_t isize[3][3],ipnts[2][3],ipntsdonor[2][3];
printf("\nProgram write_con2zn_str\n");
/* WRITE 1-TO-1 CONNECTIVITY INFORMATION TO EXISTING CGNS FILE */
/* open CGNS file for modify */
if (cg_open("grid_c.cgns",CG_MODE_MODIFY,&index_file)) cg_error_exit();
/* we know there is only one base (real working code would check!) */
index_base=1;
/* get number of zones (should be 2 for our case) */
cg_nzones(index_file,index_base,&nzone);
if (nzone != 2)
{
printf("\nError. This program expects 2 zones. %d read.\n",nzone);
return 1;
}
/* loop over zones to get zone sizes and names */
for (index_zone=0; index_zone < nzone; ++index_zone)
{
iz=index_zone+1;
cg_zone_read(index_file,index_base,iz,zn,isize[0]);
if (index_zone == 0)
{
strcpy(zonename0,zn);
}
else
{
strcpy(zonename1,zn);
}
ilo[index_zone]=1;
ihi[index_zone]=isize[0][0];
jlo[index_zone]=1;
jhi[index_zone]=isize[0][1];
klo[index_zone]=1;
khi[index_zone]=isize[0][2];
}
/* loop over zones again */
for (index_zone=0; index_zone < nzone; ++index_zone)
{
iz=index_zone+1;
/* for this program, there should be no existing connectivity info: */
cg_nconns(index_file,index_base,iz,&nconns);
if (nconns != 0)
{
printf("\nError. This program expects no interfaces yet. %d read.\n",nconns);
return 1;
}
cg_n1to1(index_file,index_base,iz,&n1to1);
if (n1to1 != 0)
{
printf("\nError. This program expects no interfaces yet. %d read.\n",n1to1);
return 1;
}
/* set up index ranges */
if (index_zone == 0)
{
strcpy(donorname,zonename1);
/* lower point of receiver range */
ipnts[0][0]=ihi[0];
ipnts[0][1]=jlo[0];
ipnts[0][2]=klo[0];
/* upper point of receiver range */
ipnts[1][0]=ihi[0];
ipnts[1][1]=jhi[0];
ipnts[1][2]=khi[0];
/* lower point of donor range */
ipntsdonor[0][0]=ilo[1];
ipntsdonor[0][1]=jlo[1];
ipntsdonor[0][2]=klo[1];
/* upper point of donor range */
ipntsdonor[1][0]=ilo[1];
ipntsdonor[1][1]=jhi[1];
ipntsdonor[1][2]=khi[1];
}
else
{
strcpy(donorname,zonename0);
/* lower point of receiver range */
ipnts[0][0]=ilo[1];
ipnts[0][1]=jlo[1];
ipnts[0][2]=klo[1];
/* upper point of receiver range */
ipnts[1][0]=ilo[1];
ipnts[1][1]=jhi[1];
ipnts[1][2]=khi[1];
/* lower point of donor range */
ipntsdonor[0][0]=ihi[0];
ipntsdonor[0][1]=jlo[0];
ipntsdonor[0][2]=klo[0];
/* upper point of donor range */
ipntsdonor[1][0]=ihi[0];
ipntsdonor[1][1]=jhi[0];
ipntsdonor[1][2]=khi[0];
}
/* set up Transform */
itranfrm[0]=1;
itranfrm[1]=2;
itranfrm[2]=3;
/* write 1-to-1 info (user can give any name) */
cg_1to1_write(index_file,index_base,iz,"Interface",donorname,
ipnts[0],ipntsdonor[0],itranfrm,&index_conn);
}
/* close CGNS file */
cg_close(index_file);
printf("\nSuccessfully added 1-to-1 connectivity info to file grid_c.cgns\n");
return 0;
}