MCOMMAND_SPLIT,

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 27/11/2009 at 14:52, xxxxxxxx wrote:

User Information:
Cinema 4D Version: 11
Platform: Windows ;
Language(s) :

---------
I am trying to use SendModelingCommand() to call the split command in C4D.

This is the code I am using.

  
PolygonObject* objPoly;   
     objPoly=(PolygonObject* )obj;   
     if (!objPoly->IsInstanceOf(Opolygon))   
          return false;   
  
          LONG id = dc->id[0].id;   
  
          ModelingCommandData mdat;   
          BaseSelect *selected = objPoly->GetPolygonS();   
          if (!selected) return FALSE;   
          BaseDocument * doc=obj->GetDocument();   
          BaseSelect * backupSel=NULL;   
  
          LONG lngI=0;   
          LONG lngPolygonCount=objPoly->GetPolygonCount();   
          LONG lngSymPlane = data->GetReal(SYMMETRY_PLANE);   
          LONG lngMirroredSide = data->GetReal(MIRRORED_SIDE);   
  
          Vector * arrPoints=objPoly->GetPointW();   
          CPolygon * arrPolygons=objPoly->GetPolygonW();   
          CPolygon * hiddenPolygons=objPoly->GetPolygonW();   
             
          mdat.mode = MODIFY_POLYGONSELECTION;   
          mdat.doc = doc;   
          mdat.bc = data;   
          mdat.op = objPoly;   
  
          backupSel =BaseSelect::Alloc();   
          if (!backupSel)return FALSE;   
  
          selected->CopyTo(backupSel);   
          blnSymmetryEnabled=FALSE;   
             
     if (id == DELETE)   
        
     {   
  
          if (data->GetLong(SIDE_CHOOSER)==CHOOSE_A)   
          {     //Check to see which polys will be hidden   
               selected->DeselectAll();   
                  
               for (lngI=0;lngI<lngPolygonCount;lngI++)   
               {     if (PolyOnEditableSide(arrPoints, arrPolygons, lngI, lngSymPlane, lngMirroredSide, lngOldPointCount, lngOldPolygonCount))   
                         selected->Select(lngI);   
               }   
               SendModelingCommand(MCOMMAND_DELETE, mdat);   
               EventAdd(EVENT_FORCEREDRAW);   
                  
          }   
  
          else if (data->GetLong(SIDE_CHOOSER)==CHOOSE_B)   
          {     //Check to see which polys will be hidden   
               selected->DeselectAll();   
                  
               for (lngI=0;lngI<lngPolygonCount;lngI++)   
               {     if (!PolyOnEditableSide(arrPoints, arrPolygons, lngI, lngSymPlane, lngMirroredSide, lngOldPointCount, lngOldPolygonCount))   
                         selected->Select(lngI);   
               }   
               SendModelingCommand(MCOMMAND_DELETE, mdat);   
               EventAdd(EVENT_FORCEREDRAW);   
          }   
  
     }   
  
  
     if (id == SPLIT)   
     {   
  
          if (data->GetLong(SIDE_CHOOSER)==CHOOSE_A)   
          {     //Check to see which polys will be hidden   
               selected->DeselectAll();   
                  
               for (lngI=0;lngI<lngPolygonCount;lngI++)   
               {     if (PolyOnEditableSide(arrPoints, arrPolygons, lngI, lngSymPlane, lngMirroredSide, lngOldPointCount, lngOldPolygonCount))   
                         selected->Select(lngI);   
               }   
                  
               SendModelingCommand(MCOMMAND_SPLIT, mdat);   
               GePrint("Splitting A");   
               EventAdd(EVENT_FORCEREDRAW);   
          }   
  
          if (data->GetLong(SIDE_CHOOSER)==CHOOSE_B)   
          {     //Check to see which polys will be hidden   
               selected->DeselectAll();   
                  
               for (lngI=0;lngI<lngPolygonCount;lngI++)   
               {     if (!PolyOnEditableSide(arrPoints, arrPolygons, lngI, lngSymPlane, lngMirroredSide, lngOldPointCount, lngOldPolygonCount))   
                         selected->Select(lngI);   
               }   
               SendModelingCommand(MCOMMAND_SPLIT, mdat);   
               GePrint("Splitting B");   
               EventAdd(EVENT_FORCEREDRAW);   
          }   
  
     }   
  
          backupSel->CopyTo(selected);   
          BaseSelect::Free(backupSel);   
          blnSymmetryEnabled=TRUE;   
  
     return TRUE;

For some reason, the MCOMMAND_SPLIT is not doing anything. It selects all polygons on a certain side of the object and then runs the MCOMMAND_SPLIT but it's not doing anything.. Does anyone see a problem here?

Thanks,

~Shawn

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 28/11/2009 at 08:14, xxxxxxxx wrote:

You need to get the new object from the AtomArray* result:

// - Split PolygonSelection off into new Object  
//*---------------------------------------------------------------------------*  
BaseObject* GreeblerObj::SplitSelection(BaseObject* op, const Bool& deltags)  
//*---------------------------------------------------------------------------*  
{  
  // Initialize General ModelingCommandData  
  ModelingCommandData    gmcd;  
  gmcd.doc =            NULL;  
  gmcd.op =            op;  
  gmcd.bc =            NULL;  
  gmcd.mode =            MODIFY_POLYGONSELECTION;  
  gmcd.flags =        0L;  
  // Split selected polygons (tops) into new object  
  if (!(SendModelingCommand(MCOMMAND_SPLIT, gmcd) && gmcd.result))    return NULL;  
  BaseObject*    top =    static_cast<BaseObject*>(gmcd.result->GetIndex(0L));  
  AtomArray::Free(gmcd.result);  
  return top;  
}

Afterwards, you'll need to insert into the BaseDocument yourself if necessary.