Exemplos de CFX_PointsF em C++ (Cpp)

Exemplo n.º 1

Arquivo: cfde_path.cpp Projeto: gradescope/pdfium

void CFDE_Path::GetCurveTangents(const CFX_PointsF& points,
                                 CFX_PointsF& tangents,
                                 FX_BOOL bClosed,
                                 FX_FLOAT fTension) const {
  int32_t iCount = points.GetSize();
  tangents.SetSize(iCount);
  if (iCount < 3)
    return;

  FX_FLOAT fCoefficient = fTension / 3.0f;
  const CFX_PointF* pPoints = points.GetData();
  CFX_PointF* pTangents = tangents.GetData();
  for (int32_t i = 0; i < iCount; ++i) {
    int32_t r = i + 1;
    int32_t s = i - 1;
    if (r >= iCount)
      r = bClosed ? (r - iCount) : (iCount - 1);
    if (s < 0)
      s = bClosed ? (s + iCount) : 0;

    pTangents[i].x += (fCoefficient * (pPoints[r].x - pPoints[s].x));
    pTangents[i].y += (fCoefficient * (pPoints[r].y - pPoints[s].y));
  }
}