Setting Color to Each Face of Solid

By Madhukar Moogala

The below is self explanatory, we ‘ll look at it how we can traverse to each face and paint with different colours.

void TestBrep(void) {     Adesk::Int32 len;     ads_name  ssname0;   struct resbuf *buffer;     buffer = acutBuildList(-4, _T(""), RTNONE);     acutPrintf(_T("nSelect a box:"));     acedSSGet(NULL, NULL, NULL, buffer, ssname0);     acutRelRb(buffer);   if (RTNORM == acedSSLength(ssname0, &len))     {         ads_name  ent;         AcDbObjectId entId;     for(long k = 0; k < len; k++)         {             acedSSName(ssname0, k, ent);             acdbGetObjectId(entId, ent);         settingDifferentColorToEachFace(entId);         }         acedSSFree(ssname0);     } }   void settingDifferentColorToEachFace(AcDbObjectId solidId) {   AcCmColor specialColor;   AcDb3dSolid* pSolid;     if (Acad::eOk == acdbOpenObject(pSolid, solidId, AcDb::kForRead))     {         AcDbFullSubentPath path(solidId, AcDbSubentId());     AcBrBrep brep;         AcBr::ErrorStatus bs = brep.setSubentPath(path)
;         if (bs != AcBr::eOk)             return;    //Initialize the BrepFace traverser         AcBrBrepFaceTraverser bft;         bs = bft.setBrep(brep);         if (bs != AcBr::eOk)             return;           AcArray arrSubentId;         // Traverse all faces         for (;!bft.done();bft.next())         {             AcBrFace face;             bs = bft.getFace(face);                  if (bs != Acad::eOk)             {                 acutPrintf(L"ngetFace failed");                 break;             }             AcDbFullSubentPath    Path(kNullSubent);             AcDbSubentId          subentId;             AcBr::ErrorStatus bss = face.getSubentPath(Path);             subentId = Path.subentId();               arrSubentId.append(subentId);         }           pSolid->upgradeOpen();         for (int i = 0; i < arrSubentId.length(); i++)         {       specialColor.setColorIndex(i);             pSolid->setSubentColor(arrSubentId[i],specialColor);         }         pSolid->downgradeOpen();     }       pSolid->close(); }