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Цитата Pit-Bul @ 02.12.21, 13:38

Как рисовать на tkinter canvas именно вторым слоем, чтобы можно было очищать маршрут, ну либо корректировать. Хотя тут наверное будут подсказывать подгружать картинку по новой для очищения плана, возможно, но может есть более изящное решение.

from tkinter import *

from tkinter import ttk

import random as rnd

class App(ttk.Frame):

def __init__(self, master=None):

super().__init__(master)

self.pack()

map_w = 200

map_h = 200

map_bg = 'white'

myapp=None

c_scr=None

# map: array of "objects"

map_=None

# format of object:

# types: line. other_attributes=x2, y2, color(black), width(1)

# [id, type, x, y, other_attributes]

def app_init():

global myapp, c_scr, map_

myapp = App()

myapp.master.title("Test Canvas App")

myapp.master.maxsize(map_w+100, map_h+100)

c_scr = Canvas(myapp, width=map_w, height=map_h, bg=map_bg)

map_ = []

def event_quit(event):

myapp.destroy()

exit()

def clear_map(event):

map_.clear()

c_scr.delete('GRAPH')

def app_create_ui():

btn_q = c_scr.create_rectangle(75, 180, 135, 198, fill='grey', tag='UI')

btn_q_t=c_scr.create_text(120, 200, text="Exit",anchor=SE, fill="blue", tag='UI')

c_scr.tag_bind(btn_q, '<Button-1>', event_quit)

c_scr.tag_bind(btn_q_t, '<Button-1>', event_quit)

btn_c = c_scr.create_rectangle(75, 160, 135, 178, fill='olive', tag='UI')

btn_c_t=c_scr.create_text(120, 180, text="Clear",anchor=SE, fill="blue", tag='UI')

c_scr.tag_bind(btn_c, '<Button-1>', clear_map)

c_scr.tag_bind(btn_c_t, '<Button-1>', clear_map)

def auto_fill_map(objects=9):

global map_

for i in range (0, objects):

# here I make random items on the map:

x=rnd.randrange(0, map_w)

y=rnd.randrange(0, map_h)

x_=rnd.randrange(1, 25)

y_=rnd.randrange(1, 25)

newobj_id = c_scr.create_line(x, y, x_, y_, tag="GRAPH")

newobj = [newobj_id, 'line', x, y, [x_, y_, 'black', 1]]

map_.append(newobj)

def move_z(obj):

#c_scr.tag_lower(obj)

#c_scr.tag_raise(obj)

pass

# c.pack()

# c.create_line(10, 10, 190, 50)

# c.create_line(100, 180, 100, 60, fill='green',

# width=5, arrow=LAST, dash=(10,2),

# activefill='lightgreen',

# arrowshape="10 20 10")

# def in_focus(event):

# c_scr.itemconfig(rect, fill='green', width=2)

# c_scr.coords(rect, 70, 70, 130, 130)

# c_scr.bind('<FocusIn>', in_focus)

def app_start():

c_scr.pack()

myapp.mainloop()

app_init()

app_create_ui()

auto_fill_map()

app_start()