GT_GUHelpers.h

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/*
* PROPRIETARY INFORMATION.  This software is proprietary to
* Side Effects Software Inc., and is not to be reproduced,
* transmitted, or disclosed in any way without written permission.
*
* NAME:        GT_GUHelpers.h ( GT Library, C++)
*
* COMMENTS:
*      Code that would normally live at the GU level, but needs access to GT.
*/

#ifndef __GT_GUHelpers_h__
#define __GT_GUHelpers_h__

#include "GT_API.h"

#include <UT/UT_VectorTypes.h>
#include <UT/UT_SymMatrix3.h>
#include <GA/GA_Types.h>

class GA_Range;
class GU_Detail;

namespace GT_GUHelpers
{
    GT_API bool  computePrimCovariance(
                                const GU_Detail &gdp,
                                const GA_Range &prim_range,
                                UT_SymMatrix3R &covariance,
                                UT_Vector3R &centroid,
                                UT_Vector3R &average_normal,
                                UT_Vector3Array *point_positions,
                                GA_OffsetArray *prim_refs);
}

#endif // __GT_GUHelpers_h__