[Closed] How to transform local space into world space in SDK

Plus,

mat.SetTrans(p0); anyone has SDK samples and may know this

line in the porc of WidgetCreateCallBack . Did it make any sense to my problem ?
any help ?

Hi,
here is a code reference to convert coordinates from local to world space and viceversa.

From Local to World

// get first Node from current selection
// INode* Interface::GetSelNode(int i)
INode* node = GetCOREInterface()->getSelNode(0);

// get Node Transform Matrix
// Matrix3 GetNodeTM (TimeValue t, Interval* valid=NULL)
Matrix3 nodeTM = node->GetNodeTM(GetCOREInterface()->GetTime());

// sample Point in Local Space
Point3 localPos(10.0f, 20.0f, 30.0f);

// sample Vector in Local Space
Point3 localVec(0.57735f, 0.57735f, 0.57735f);

// from Local to World for Positions
Point3 worldPos = nodeTM.PointTransform(localPos);

// from Local to World for Vectors
Point3 worldVec = nodeTM.VectorTransform(localVec);

From World to Local

// get first Node from current selection
// INode* Interface::GetSelNode(int i)
INode* node = GetCOREInterface()->getSelNode(0);

// get Node Transform Matrix
// Matrix3 GetNodeTM (TimeValue t, Interval* valid=NULL)
Matrix3 nodeTM = node->GetNodeTM(GetCOREInterface()->GetTime());

// inverse Node Transform Matrix
Matrix3 invNodeTM = Inverse(nodeTM);

// sample Point in World Space
Point3 worldPos(10.0f, 20.0f, 30.0f);

// sample Vector in World Space
Point3 worldVec(0.57735f, 0.57735f, 0.57735f);

// from World to Local for Positions
Point3 localPos = invNodeTM.PointTransform(worldPos);

// from World to Local for Vectors
Point3 localVec = invNodeTM.VectorTransform(worldVec);

• Enrico

wa…What I may say,You’re just wonderful-SyncViewS . Super…

Thanx.