Support_USDTrackPainter.h

// Copyright (c) 2013 - 2019 Marc-Michael Horstmann;
// Copyright (c) 2020 - 2024 Trend Verlag;
//
//  trax track library
//  AD 2024 
//
//  "the resolution of all the fruitless searches"
//
//                              Peter Gabriel
 
 
#pragma once
 
#include "trax/TrackPainter.h"
 
#include "SupportUSD_Spat.h"
 
#if defined(_MSC_VER)
#   pragma warning( push )
#   pragma warning( disable: 4275 ) // non dll-interface class used as base for dll-interface class
#endif
#include <pxr/base/vt/array.h>
#if defined(_MSC_VER)
#   pragma warning( pop )
#endif
 
namespace trax{
 
class BufferedUSDTrackPainter : public trax::SectionPainter{
public:
    BufferedUSDTrackPainter(    pxr::VtArray<pxr::GfVec3f>& points, 
                                pxr::VtArray<int>& indices,
                                pxr::VtArray<int>& faceVertexCounts,
                                Real usdStageMetersPerUnit,
                                int mode = TrackPainter::Mode::mode_default, 
                                common::Interval<Length> segmentLimits = {trax::epsilon__length,trax::plausible_maximum_length}, 
                                Length e = trax::epsilon__length );
 
protected:
    void StartPaint( const spat::Frame<Length,One>& rFrame, Length offset, const trax::Section& section ) override;
    void AddVertex( const spat::Frame<Length,One>& rFrame, const trax::Section::SectionPoint& pt, const spat::Position2D<One>& /*textcoord*/ ) override;
    void AddTriangle( unsigned int i0, unsigned int i1, unsigned int i2 ) override;
 
    pxr::VtArray<pxr::GfVec3f>& m_Points;
private:
    pxr::VtArray<int>&  m_Indices;
    int                 m_IndexOffset;
    pxr::VtArray<int>&  m_FaceVertexCounts;
    Real                m_UsdStageMetersPerUnit;
};
 
}