Hi, I am new to Boost. I am using boost::geometry to define my data structure as follows typedef boost::geometry::model::point point_3d; typedef boost::geometry::model::linestring linestring_3d; and I declare a linestring variable as follows linestring m_linestring; Now after adding several points in m_linestring, is there any way to find out whether a particular point exists in the list m_linestring? Just like in case of std::vector, it can be found out using std::find function. Thanks in advance