tree.gle

Subroutines for drawing trees

these constants are final (don't change these)

the defaults can be modified with the functions below

 sub set_tree_node_dxdy dx dy

 sub set_tree_node_fill dx dy

 sub set_tree_node_min_size sx sy

 sub set_tree_hei nodehei leafhei labelhei

 sub set_tree_edge_label_add_dy add dy

 sub set_tree_edge_arrow arr

 sub set_tree_node_ellipse ell

 sub set_leaf_ellipse_size_str str$

 sub texortext str$ name$ delta hi

 sub drawcliparc x0l x1l y0l x0b x1b label$

 sub draw_edge_label x1 y1 x2 y2 label$

 sub def_binary_node label$ llab$ rlab$ ltree$ rtree$ name$

 sub def_tertiary_node label$ llab$ mlab$ rlab$ ltree$ mtree$ rtree$ name$

 sub def_leaf_ellipse str$ name$