C++ (Cpp) Polygon::reserve示例

示例#1

文件： main.cpp 项目： Alkaponj/repsnapper

void MakePolygonFromInts(int *ints, int size, ClipperLib::Polygon &p)
{
  p.clear();
  p.reserve(size / 2);
  for (int i = 0; i < size; i +=2)
    p.push_back(IntPoint(ints[i], ints[i+1]));
}

示例#2

文件： qxclipper.cpp 项目： lukeandrew/QxClipper

void polygonFromQxClipper(const QPolygonF& qxPolygon,
                          ClipperLib::Polygon &clipperPolygon)
{
  clipperPolygon.clear();
  clipperPolygon.reserve(qxPolygon.size());
  foreach(const QPointF &point, qxPolygon)
  {
    clipperPolygon.push_back(ClipperLib::IntPoint(point.x()*ConversionFactor,
                                                  point.y()*ConversionFactor));
  }