plink – A Python/Tk link editor

Technical documentation of the Python objects that underly PLink. Of interest only to Marc, Nathan, or similar folks.

class plink.LinkEditor(root=None, no_arcs=False, callback=None, cb_menu='', manifold=None, file_name=None, title='PLink Editor')

A graphical link drawing tool based on the one embedded in Jeff Weeks’ original SnapPea program.

about()

active_crossing_data()

Return the tuple of edges crossed by the in and out arrows of the active vertex.

alert()

attach_cursor(reason='')

build_menus()

build_plink_menus()

clear()

clear_text()

clicked_on_arrow(vertex)

crossed_arrows(arrow, ignore_list=[])

Return a tuple containing the arrows of the diagram which are crossed by the given arrow, in order along the given arrow.

cursor_on_arrow(point)

destroy_arrow(arrow)

detach_cursor(reason='')

do_callback()

done(event=None)

double_click(event)

Event handler for mouse double-clicks.

end_dragging_state()

focus_in(event)

focus_out(event)

full_redraw()

Recolors and redraws all components, in DT order, and displays the legend linking colors to cusp indices.

generic_arrow(arrow)

generic_vertex(vertex)

goto_drawing_state(x1, y1)

goto_start_state()

hide_DT()

howto()

key_press(event)

Handler for keypress events.

key_release(event)

Handler for keyrelease events.

load(file_name=None)

make_alternating()

Changes crossings to make the projection alternating. Requires that all components be closed.

mouse_moved(event)

Handler for mouse motion events.

move_active(x, y)

move_is_ok()

not_done()

notice_focus()

reflect()

reopen()

save()

save_image(file_type='eps', colormode='color')

set_info()

set_start_cursor(x, y)

set_view_mode()

shift_click(event)

Event handler for mouse shift-clicks.

show_DT()

Display the DT hit counters next to each crossing. Crossings that need to be flipped for the planar embedding have an asterisk.

single_click(event)

Event handler for mouse clicks.

unpickle(vertices, arrows, crossings, hot=None)

update_crossings(this_arrow)

Redraw any arrows which were changed by moving this_arrow.

update_info()

update_smooth()

verify_drag()

warn_arcs()

write_text(string)

zoom_in()

zoom_out()

zoom_to_fit()