GogSeriesLines
void gog_series_lines_stroke (GogSeriesLines *lines, GogRenderer *rend, GogViewAllocation const *bbox, GOPath *path, gboolean invert);
GogSeriesLines *lines
GogRenderer *rend
GogViewAllocation const *bbox
GOPath *path
gboolean invert
void gog_series_lines_use_markers (GogSeriesLines *lines, gboolean use_markers);
gboolean use_markers