agg/src/agg_arrowhead.cpp

56             m_coord[0]  =  m_tail_d1;             m_coord[1]  =  0.0;
57             m_coord[2]  =  m_tail_d1 - m_tail_d4; m_coord[3]  =  m_tail_d3;
58             m_coord[4]  = -m_tail_d2 - m_tail_d4; m_coord[5]  =  m_tail_d3;
59             m_coord[6]  = -m_tail_d2;             m_coord[7]  =  0.0;
60             m_coord[8]  = -m_tail_d2 - m_tail_d4; m_coord[9]  = -m_tail_d3;
61             m_coord[10] =  m_tail_d1 - m_tail_d4; m_coord[11] = -m_tail_d3;
81             m_coord[0]  = -m_head_d1;            m_coord[1]  = 0.0;
82             m_coord[2]  = m_head_d2 + m_head_d4; m_coord[3]  = -m_head_d3;
83             m_coord[4]  = m_head_d2;             m_coord[5]  = 0.0;
84             m_coord[6]  = m_head_d2 + m_head_d4; m_coord[7]  = m_head_d3;
103             *x = m_coord[curr_idx];
104             *y = m_coord[curr_idx + 1];