C++ NURBSSet::GetNURBSObject方法代码示例

//.........这里部分代码省略.........
	int uvLoftSurf = MakeTestUVLoftSurface(nset);


	// 1 Rail Sweep
	int oneRailSurf = MakeTest1RailSweepSurface(nset);

	// 2 Rail Sweep
	int twoRailSurf = MakeTest2RailSweepSurface(nset);

	// MultiCurveTrim Surface
	int multiTrimSurf = MakeTestMultiCurveTrimSurface(nset);


	// Now make the curves and surfaces that we'll use later for the join tests
	int jc1, jc2, js1, js2;
	AddObjectsForJoinTests(nset, jc1, jc2, js1, js2);

	int bc, bs;
	AddObjectsForBreakTests(nset, bc, bs);


	Object *obj = CreateNURBSObject(mpIp, &nset, mat);
	INode *node = mpIp->CreateObjectNode(obj);
	node->SetName(GetString(IDS_TEST_OBJECT));




	NURBSSet addNset;
	// build a point surface
	int addptSurf = AddTestPointSurface(addNset);

	// add an iso curve to the previously created CV Surface
	NURBSId id = nset.GetNURBSObject(cvSurf)->GetId();
	int addIsoCrv = AddTestIsoCurve(addNset, id);

	AddNURBSObjects(obj, mpIp, &addNset);




	// now test some changing functionality
	// Let's change the name of the CVSurface
	NURBSObject* nObj = nset.GetNURBSObject(cvSurf);
	nObj->SetName(_T("New CVSurf Name"));  // testing only, no need to localize

	// now let's change the position of one of the points in the point curve
	NURBSPointCurve* ptCrvObj = (NURBSPointCurve*)nset.GetNURBSObject(ptCrv);
	ptCrvObj->GetPoint(0)->SetPosition(0, Point3(10, 160, 0)); // moved from 0,150,0

	// now let's change the position and weight of one of the CVs
	// in the CV Surface
	NURBSCVSurface* cvSurfObj = (NURBSCVSurface*)nset.GetNURBSObject(cvSurf);
	cvSurfObj->GetCV(0, 0)->SetPosition(0, Point3(-150.0, -100.0, 20.0)); // moved from 0,0,0
	cvSurfObj->GetCV(0, 0)->SetWeight(0, 2.0); // from 1.0


	// now let's do a transform of a curve.
	NURBSIdTab xfmTab;
	NURBSId nid = nset.GetNURBSObject(jc1)->GetId();
	xfmTab.Append(1, &nid);
	Matrix3 xfmMat;
	xfmMat = TransMatrix(Point3(10, 10, -10));
	SetXFormPacket xPack(xfmMat);
	NURBSResult res = Transform(obj, xfmTab, xPack, xfmMat, 0);

bool AlembicCurves::Save(double time, bool bLastFrame)
{
    ESS_PROFILE_FUNC();

    //TimeValue ticks = GET_MAX_INTERFACE()->GetTime();
    TimeValue ticks = GetTimeValueFromFrame(time);
	Object *obj = mMaxNode->EvalWorldState(ticks).obj;
	if(mNumSamples == 0){
		bForever = CheckIfObjIsValidForever(obj, ticks);
	}
	else{
		bool bNewForever = CheckIfObjIsValidForever(obj, ticks);
		if(bForever && bNewForever != bForever){
			ESS_LOG_INFO( "bForever has changed" );
		}
	}

	SaveMetaData(mMaxNode, this);

    // check if the spline is animated
    if(mNumSamples > 0) 
    {
        if(bForever)
        {
            return true;
        }
    }

    AbcG::OCurvesSchema::Sample curvesSample;

	std::vector<AbcA::int32_t> nbVertices;
    std::vector<Point3> vertices;
    std::vector<float> knotVector;
    std::vector<Abc::uint16_t> orders;

    if(obj->ClassID() == EDITABLE_SURF_CLASS_ID){

       NURBSSet nurbsSet;   
       BOOL success = GetNURBSSet(obj, ticks, nurbsSet, TRUE);   

       AbcG::CurvePeriodicity cPeriod = AbcG::kNonPeriodic;
       AbcG::CurveType cType = AbcG::kCubic;
       AbcG::BasisType cBasis = AbcG::kNoBasis;

       int n = nurbsSet.GetNumObjects();
       for(int i=0; i<n; i++){
          NURBSObject* pObject = nurbsSet.GetNURBSObject((int)i);

          //NURBSType type = pObject->GetType();
          if(!pObject){
             continue;
          }

          if( pObject->GetKind() == kNURBSCurve ){
             NURBSCurve* pNurbsCurve = (NURBSCurve*)pObject;

             int degree;
             int numCVs;
             NURBSCVTab cvs;
			 int numKnots;
		     NURBSKnotTab knots;
             pNurbsCurve->GetNURBSData(ticks, degree, numCVs, cvs, numKnots, knots);

             orders.push_back(degree+1);

             const int cvsCount = cvs.Count();
             const int knotCount = knots.Count();

             for(int j=0; j<cvs.Count(); j++){
                NURBSControlVertex cv = cvs[j];
                double x, y, z;
                cv.GetPosition(ticks, x, y, z);
                vertices.push_back( Point3((float)x, (float)y, (float)z) );
             }

             nbVertices.push_back(cvsCount);

             //skip the first and last entry because Maya and XSI use this format
             for(int j=1; j<knots.Count()-1; j++){
                knotVector.push_back((float)knots[j]);
             }

             if(i == 0){
                if(pNurbsCurve->IsClosed()){
                   cPeriod = AbcG::kPeriodic;
                }  
             }
             else{
                if(pNurbsCurve->IsClosed()){
                   if(cPeriod != AbcG::kPeriodic){
                      ESS_LOG_WARNING("Mixed curve wrap types not supported.");
                   }
                }
                else{
                   if(cPeriod != AbcG::kNonPeriodic){
                      ESS_LOG_WARNING("Mixed curve wrap types not supported.");
                   }
                }
             }

//.........这里部分代码省略.........