tge/lib/mayasdk6/include/maya/MTesselationParams.h

#ifndef _MTesselationParams
#define _MTesselationParams
//
//-
// ==========================================================================
// Copyright (C) 1995 - 2005 Alias Systems Corp. and/or its licensors.  All 
// rights reserved.
// 
// The coded instructions, statements, computer programs, and/or related 
// material (collectively the "Data") in these files contain unpublished 
// information proprietary to Alias Systems Corp. ("Alias") and/or its 
// licensors, which is protected by Canadian and US federal copyright law and 
// by international treaties.
// 
// The Data may not be disclosed or distributed to third parties or be copied 
// or duplicated, in whole or in part, without the prior written consent of 
// Alias.
// 
// THE DATA IS PROVIDED "AS IS". ALIAS HEREBY DISCLAIMS ALL WARRANTIES RELATING 
// TO THE DATA, INCLUDING, WITHOUT LIMITATION, ANY AND ALL EXPRESS OR IMPLIED 
// WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND/OR FITNESS FOR A 
// PARTICULAR PURPOSE. IN NO EVENT SHALL ALIAS BE LIABLE FOR ANY DAMAGES 
// WHATSOEVER, WHETHER DIRECT, INDIRECT, SPECIAL, OR PUNITIVE, WHETHER IN AN 
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, OR IN EQUITY, 
// ARISING OUT OF ACCESS TO, USE OF, OR RELIANCE UPON THE DATA.
// ==========================================================================
//+
//
// CLASS:    MTesselationParams
//
// *****************************************************************************
//
// CLASS DESCRIPTION (MTesselationParams)
//
// This class provides control over the tesselation operation.
// This class is meant to be used in conjunction with the tesselate
// method of MFnNurbsSurface.
// 
// The tesselation operation works by building an initial mesh and then
// refining that mesh until certain subdivision criteria are met. This class
// provides control over both the method of construction of the initial
// mesh and also the criteria for subsequent refinement.
// The initial tesselation is specified by the polygon output type, and the
// isoparm type. The secondary tesselation (or subdivision) is specified by
// the tesselation format.
//
// *****************************************************************************
#if defined __cplusplus
// *****************************************************************************

// INCLUDED HEADER FILES

#include <maya/MStatus.h>
#include <maya/MTypes.h>

// *****************************************************************************

// FORWARD DECLARATIONS

class MMatrix;

// *****************************************************************************

// CLASS DECLARATION (MTesselationParams)

/// Tesselation parameters
/**

*/
#ifdef _WIN32
#pragma warning(disable: 4522)
#endif // _WIN32

class OPENMAYA_EXPORT MTesselationParams  
{
public:
	
	/// Tesselation format
	enum TessFormat {
		///
		kTriangleCountFormat,
		///
		kStandardFitFormat,
		///
		kGeneralFormat
	};

	/// Output Types
	enum PolyType {
		///
		kTriangles,
		///
		kQuads
	};
	
	/// IsoparmType
	enum IsoparmType {
		///
		kSurface3DDistance,
		///
		kSurface3DEquiSpaced,
		///
		kSurfaceEquiSpaced,
		///
		kSpanEquiSpaced
	};
	
	/// Subdivision flags
	enum SubdivisionType {
		///
		kUseFractionalTolerance,
		///
		kUseChordHeightRatio,
		///
		kUseMinEdgeLength,
		///
		kUseMaxEdgeLength,
		///
		kUseMaxNumberPolys,
		///
		kUseMaxSubdivisionLevel,
		///
		kUseMinScreenSize,
		///
		kUseMaxUVRectangleSize,
		///
		kUseTriangleEdgeSwapping,
		///
		kUseRelativeTolerance,
		///
		kUseEdgeSmooth,
		///
		kLastFlag
	};


    ///
	MTesselationParams ( TessFormat format = kStandardFitFormat,
						PolyType = kTriangles );
	MTesselationParams ( const MTesselationParams & );
    ///
	~MTesselationParams ();


	// General parameters
	///
	void		setFormatType( TessFormat type );
	///
	void		setOutputType( PolyType type );


	//  Parameters for triangulization format
	///
	void		setTriangleCount( int );


	//  Parameters for standard fit  format
	///
	void		setStdChordHeightRatio( double );
	///
	void		setStdFractionalTolerance( double );
	///
	void		setStdMinEdgeLength( double );


	//  Parameters for general tesselation format
	///
	void		setSubdivisionFlag( SubdivisionType type, bool use );
	///
	void		setFitTolerance( double );
	///
	void		setChordHeightRatio( double );
	///
	void		setMinEdgeLength( double );
	///
	void		setMaxEdgeLength( double );
	///
	void		setMaxNumberPolys( int );
	///
	void		setMaxSubdivisionLevel( double );
	///
	void		setMinScreenSize( double, double );
	///
	void		setWorldspaceToScreenTransform( MMatrix & );
	///
	void		setMaxUVRectangleSize( double, double );
	///
	void		setRelativeFitTolerance( double );
	///
	void		setEdgeSmoothFactor( double );
	///
	void		set3DDelta( double );


	// U,V isoparm based parameters
	///
	void		setUIsoparmType( IsoparmType type );
	///
	void		setVIsoparmType( IsoparmType type );
	///
	void		setUNumber( int count );
	///
	void		setVNumber( int count );
	///
	void		setBoundingBoxDiagonal( double distance );
	///
	void		setUDistanceFraction( double value );
	///
	void		setVDistanceFraction( double value );

	///
	MTesselationParams &operator= ( const MTesselationParams &rhs);		

	
	// The default tesselation parameters
	///
	static	MTesselationParams 	fsDefaultTesselationParams;

protected:
// No protected members

private:
	friend class MFnNurbsSurface;
	const char*		 className() const;
	void * data;
};

#ifdef _WIN32
#pragma warning(default: 4522)
#endif // _WIN32

// *****************************************************************************
#endif /* __cplusplus */
#endif /* _MTesselationParams */