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Metario
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lib/maxsdk70/include/MNNormalSpec.h
Executable file
194
lib/maxsdk70/include/MNNormalSpec.h
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/**********************************************************************
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*<
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FILE: MNNormalSpec.h
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DESCRIPTION: User-specifiable normals for MNMeshes - Luna task 747
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CREATED BY: Steve Anderson
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HISTORY: created January 2002
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*> Copyright (c) 2002 Autodesk, Inc., All Rights Reserved.
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**********************************************************************/
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// Necessary prior inclusions: max.h, mnmesh.h
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#ifndef __MN_NORMALS_H_
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#define __MN_NORMALS_H_
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#include "baseinterface.h"
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#include "ipipelineclient.h"
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#define MN_NORMAL_SPEC_INTERFACE Interface_ID(0x7b7c2c5f, 0xf94260f)
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class MNNormalFace {
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int mDegree;
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int *mpNormalID;
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BitArray mSpecified;
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public:
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MNNormalFace () : mDegree(0), mpNormalID(NULL) { }
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DllExport MNNormalFace (int degree);
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~MNNormalFace () { Clear(); }
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DllExport void Init();
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DllExport void Clear();
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// Data accessors
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int GetDegree() { return mDegree; }
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DllExport void SetDegree (int degree);
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// Low-level - do not use mSpecified data!
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int GetNormalID(int corner) { return (mpNormalID && (corner<mDegree)) ? mpNormalID[corner] : -1; }
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void SetNormalID (int corner, int norm) { if (mpNormalID && (corner<mDegree)) mpNormalID[corner] = norm; }
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int *GetNormalIDArray () { return mpNormalID; }
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bool GetSpecified (int corner) { return (mpNormalID && (corner<mDegree) && mSpecified[corner]) ? true : false; }
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void SetSpecified (int corner, bool value=true) { if (mpNormalID && (corner<mDegree)) mSpecified.Set (corner, value); }
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void SpecifyAll (bool value=true) { if (value) mSpecified.SetAll(); else mSpecified.ClearAll(); }
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DllExport void SpecifyNormalID (int corner, int norm);
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DllExport void MakePoly (int degree, int *pNormalID);
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DllExport void Insert (int pos, int num=1);
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DllExport void Delete (int pos, int num=1);
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DllExport void RotateStart (int newstart);
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DllExport void Flip (); // Reverses order of verts. 0 remains start.
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DllExport MNNormalFace & operator= (const MNNormalFace & from);
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DllExport MNNormalFace & operator= (const MNFace & from);
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DllExport void ShallowTransfer (MNNormalFace & from);
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DllExport void MNDebugPrint (bool printAll=false);
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DllExport IOResult Save (ISave *isave);
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DllExport IOResult Load (ILoad *iload);
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};
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// Class MNNormalSpec flags:
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#define MNNORMAL_NORMALS_BUILT 0x01
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#define MNNORMAL_NORMALS_COMPUTED 0x02
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#define MNNORMAL_DISPLAY_HANDLES 0x04
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#define MNNORMAL_FACE_ANGLES 0x08 // Used face angles last time we computed normals
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// Default length for normal display
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#define MNNORMAL_LENGTH_DEFAULT 10.0f
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class MNNormalSpec : public IPipelineClient, public FlagUser {
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private:
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int mNumNormalAlloc, mNumFaceAlloc;
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int mNumNormals, mNumFaces;
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MNNormalFace *mpFace;
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Point3 *mpNormal;
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BitArray mNormalExplicit; // Indicates whether mpNormal[i] is explicit or computed from face normals.
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// Display and selection data:
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BitArray mNormalSel;
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float mDisplayLength;
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// We also maintain a pointer to the parent MNMesh
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// (NOTE that the MNMesh MUST keep this pointer updated at all times!)
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MNMesh *mpParent;
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public:
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MNNormalSpec () : mpFace(NULL), mpNormal(NULL), mNumNormalAlloc(0),
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mNumFaceAlloc(0), mNumNormals(0), mNumFaces(0), mpParent(NULL),
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mDisplayLength(MNNORMAL_LENGTH_DEFAULT) { }
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~MNNormalSpec () { ClearAndFree (); }
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// Initialization, allocation:
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DllExport void Initialize (); // Initializes all data members - do not use if already allocated!
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DllExport bool NAlloc (int num, bool keep=TRUE);
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DllExport void NShrink (); // shrinks allocation down to actual number of normals.
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DllExport bool FAlloc (int num, bool keep=TRUE);
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DllExport void FShrink ();
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DllExport void Clear (); // Deletes everything.
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DllExport void ClearAndFree (); // Deletes everything, frees all memory
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// Data access:
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// Lowest level:
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int GetNumFaces () const { return mNumFaces; }
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DllExport bool SetNumFaces (int numFaces);
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int GetNumNormals () const { return mNumNormals; }
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DllExport bool SetNumNormals (int numNormals);
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Point3 & Normal (int normID) const { return mpNormal[normID]; }
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Point3 * GetNormalArray () const { return mpNormal; }
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bool GetNormalExplicit (int normID) const { return mNormalExplicit[normID] ? true : false; }
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void SetNormalExplicit (int normID, bool value) { mNormalExplicit.Set (normID, value); }
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void SetAllExplicit (bool value=true) { if (value) mNormalExplicit.SetAll(); else mNormalExplicit.ClearAll (); }
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MNNormalFace & Face(int faceID) const { return mpFace[faceID]; }
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MNNormalFace * GetFaceArray () const { return mpFace; }
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void SetParent (MNMesh *pMesh) { mpParent = pMesh; }
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// Data access - higher level:
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DllExport Point3 & GetNormal (int face, int corner);
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DllExport void SetNormal (int face, int corner, Point3 & normal);
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DllExport int GetNormalIndex (int face, int corner);
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DllExport void SetNormalIndex (int face, int corner, int normalIndex);
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DllExport int NewNormal (Point3 & normal, bool explic=true);
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DllExport void SetSelection (BitArray & newSelection);
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BitArray & GetSelection() { return mNormalSel; }
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void SetDisplayLength (float displayLength) { mDisplayLength = displayLength; }
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float GetDisplayLength () { return mDisplayLength; }
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DllExport void CollapseDeadFaces (); // Requires an accurate mpParent pointer.
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// Display and hit testing - note that these require an accurate mpParent pointer.
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DllExport void Display (GraphicsWindow *gw, bool showSel);
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DllExport bool HitTest (GraphicsWindow *gw, HitRegion *hr, DWORD flags, SubObjHitList& hitList);
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DllExport Box3 GetBoundingBox (Matrix3 *tm=NULL, bool selectedOnly=false);
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// This method dumps all unspecified normals. Best to use only from within CheckNormals.
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DllExport void ClearNormals ();
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// Fills in the mpSpecNormal data by building all the unspecified normals,
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// and computing non-explicit ones.
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// Does nothing if normal faces not allocated yet!
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// Requires an accurate mpParent pointer.
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DllExport void BuildNormals ();
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// This method just recomputes the directions of non-explicit normals,
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// without rebuilding the normal list.
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// Requires an accurate mpParent pointer.
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DllExport void ComputeNormals ();
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// This checks our flags and calls BuildNormals, ComputeNormals as needed.
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// Requires an accurate mpParent pointer.
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DllExport void CheckNormals ();
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// operators and debug printing
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DllExport MNNormalSpec & operator= (const MNNormalSpec & from);
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DllExport void CopySpecified (const MNNormalSpec & from); // Like operator=, but omits unspecified.
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DllExport MNNormalSpec & operator+= (const MNNormalSpec & from);
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DllExport void MNDebugPrint (bool printAll=false);
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DllExport bool CheckAllData (int numParentFaces);
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DllExport IOResult Save (ISave *isave);
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DllExport IOResult Load (ILoad *iload);
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// From BaseInterface:
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Interface_ID GetID() {return MN_NORMAL_SPEC_INTERFACE;}
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DllExport void DeleteInterface();
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DllExport BaseInterface* GetInterface(Interface_ID id);
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DllExport BaseInterface* CloneInterface(void* remapDir = NULL);
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// --- IPipelineClient methods
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DllExport void ShallowCopy( IPipelineClient* from, ULONG_PTR channels );
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DllExport void DeepCopy( IPipelineClient* from, ULONG_PTR channels );
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DllExport void NewAndCopyChannels( ULONG_PTR channels );
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DllExport void FreeChannels( ULONG_PTR channels, int zeroOthers = 1 );
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DllExport void ZeroChannels( ULONG_PTR channels );
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DllExport void AppendAllChannels( IPipelineClient* from );
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// Actual operations:
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DllExport bool Transform (Matrix3 & xfm, BOOL useSel=false, BitArray *normalSelection=NULL);
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DllExport bool Translate (Point3 & translate, BOOL useSel=true, BitArray *normalSelection=NULL);
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DllExport bool BreakNormals (BOOL useSel=true, BitArray *normalSelection=NULL, BOOL toAverage=false);
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// Requires an accurate mpParent pointer:
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DllExport bool UnifyNormals (BOOL useSel=true, BitArray *normalSelection=NULL, BOOL toAverage=false);
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DllExport bool AverageNormals (BOOL useThresh=false, float threshold=0.0f, BOOL useSel=true, BitArray *normalSelection=NULL);
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DllExport bool SpecifyNormals (BOOL useSel=true, BitArray *normalSelection=NULL);
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DllExport bool MakeNormalsExplicit (BOOL useSel=true, BitArray *normalSelection=NULL, bool value=true);
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DllExport bool ResetNormals (BOOL useSel=true, BitArray *normalSelection=NULL);
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};
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#endif //__MN_NORMALS_H_
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