python-3.x - 在 Tkinter 中裁剪图像的多个部分并放置在画布上
问题描述
我是 Tkinter 平台的新手,所以请帮助我哪里出错了。我有一个平面图图像,我想在其中剪切对象并将其放置在画布屏幕上,以便可以根据需要拖动单个对象。除了第一个对象之外,我可以剪切和粘贴屏幕上的对象。它没有放在屏幕上。谁能帮我?
我正在使用 Matlab 代码来识别平面图图像中的对象。我附上了 Matlab 文件。是否可以将墙添加到屏幕上?我完全不知道。任何人都可以建议如何添加墙?
这是我的代码
import tkinter as tk
from tkinter import *
from PIL import Image,ImageTk
from scipy.io import loadmat
root = tk.Tk()
canvas = tk.Canvas(width=800, height=800)
canvas.grid(row=4,column=0,sticky=(N,W,E,S))
#canvas.config(width=100,height=100)
root.grid_columnconfigure(0, weight=1)
root.grid_rowconfigure(4, weight=1)
mfile=loadmat('C:\\Users\\User\\Desktop\\tkinter_codes\\obj identification\\ans.mat')
#print(mfile.values())
#print(len(mfile['ans'][0]))
print(mfile.values())
class Example(tk.Frame):
def __init__(self, parent):
self.parent =parent
tk.Frame.__init__(self, parent)
self.canvas = tk.Canvas(width=800, height=800)
self.canvas.grid(row=0,column=0,sticky=(N,W,E,S))
#canvas.pack (expand =1, fill =tk.BOTH)
self.canvas.tag_bind("DnD","<Button-1>")
self._drag_data = {"x": 0, "y": 0, "item": None}
self.canvas.tag_bind("token", "<ButtonPress-1>", self.drag_start)
self.canvas.tag_bind("token", "<ButtonRelease-1>", self.drag_stop)
self.canvas.tag_bind("token", "<B1-Motion>", self.drag)
self.canvas.bind("<ButtonPress-1>", self.on_button_1)
self.iimg=Image.open("C:\\Users\\User\\Desktop\\tkinter_codes\\floorplans\\ROBIN\\Dataset_3rooms\\Cat1_1.jpg")
#iimg=iimg.resize((1000, 800), Image.ANTIALIAS)
self.canvas.img=ImageTk.PhotoImage(self.iimg)
#canvas.img = canvas.img.resize((250, 250), Image.ANTIALIAS)
self.canvas_img=canvas.create_image(0,0,image=self.canvas.img,anchor="nw")
self.mylist=[]
for x in range(len(mfile['ans'][0])):
#canvas.create_rectangle((mfile['ans'][0][x][0][0],mfile['ans'][0][x][0][1],mfile['ans'][0][x][0][0]+mfile['ans'][0][x][0][2],mfile['ans'][0][x][0][1]+mfile['ans'][0][x][0][3]),outline='red',tags=("token","DnD"))
self.im_crop = self.iimg.crop((mfile['ans'][0][x][0][0],mfile['ans'][0][x][0][1],mfile['ans'][0][x][0][0]+mfile['ans'][0][x][0][2],mfile['ans'][0][x][0][1]+mfile['ans'][0][x][0][3]))
self.canvas.im_crop2=ImageTk.PhotoImage(self.im_crop)
self.canvas.create_image(mfile['ans'][0][x][0][0],mfile['ans'][0][x][0][1], image=self.canvas.im_crop2)
#canvas.create_image(1000,1000,image=im_crop2)
#if(x>=0):
self.mylist.append(self.canvas.im_crop2)
#im_crop.show()
#canvas.iiiimg=ImageTk.PhotoImage(im_crop)
#canvas.create_image(150,150,image=canvas.im_crop2)
self.popup = tk.Menu(root, tearoff=0)
#self.popup.add_command(label="delete",command=lambda: self.dele(id))
self.popup.add_command(label="delete",
command=lambda: self.dele(id))
self.popup.add_command(label="add",command= lambda: root.bind("<Button-1>",self.addn))
root.bind("<Button-3>", self.do_popup)
self.canvas.delete(self.canvas_img)
def do_popup(self,event):
# display the popup menu
try:
self.popup.tk_popup(event.x_root, event.y_root, 0)
finally:
# make sure to release the grab (Tk 8.0a1 only)
self.popup.grab_release()
def on_button_1(self, event):
iid = self.canvas.find_enclosed(event.x-150, event.y-150, event.x + 150, event.y + 100)
#iid=canvas.find_closest(event.x, event.y)[0]
self.canvas.itemconfigure("DEL")
self.canvas.dtag("all","DEL")
self.canvas.itemconfigure(iid, tags=("DEL","DnD","token","drag"))
#canvas.unbind("<Button-1>")
def create_token(self, x, y, color):
"""Create a token at the given coordinate in the given color"""
self.canvas.create_rectangle(
x ,
y ,
x + 50,
y + 50,
outline=color,
fill=color,
tags=("token","DnD"),
)
def create_token1(self,x,y,color):
self.canvas.create_rectangle(
x ,
y ,
x + 25,
y + 25,
outline=color,
fill=color,
tags=("token","DnD"),
)
def drag_start(self, event):
"""Begining drag of an object"""
# record the item and its location
self._drag_data["item"] = self.canvas.find_closest(event.x, event.y)[0]
rect=self.canvas.bbox(self._drag_data["item"])
self.canvas.addtag_enclosed("drag",*rect)
print(rect)
self._drag_data["x"] = event.x
self._drag_data["y"] = event.y
def drag_stop(self, event):
"""End drag of an object"""
# reset the drag information
self._drag_data["item"] = None
self._drag_data["x"] = 0
self._drag_data["y"] = 0
self.canvas.dtag("drag","drag")
def drag(self, event):
"""Handle dragging of an object"""
# compute how much the mouse has moved
self.delta_x = event.x - self._drag_data["x"]
self.delta_y = event.y - self._drag_data["y"]
# move the object the appropriate amount
self.canvas.move("drag", self.delta_x, self.delta_y)
# record the new position
self._drag_data["x"] = event.x
self._drag_data["y"] = event.y
def dele(self,id):
#canvas.tag_bind(id,"<Button-1>")
self.canvas.delete("DEL")
def addn(self,event):
canvas.create_rectangle(event.x,event.y,event.x+25,event.y+25,fill='red',tags=("DnD","token"))
root.unbind("<Button-1>")
Example(root) #pack(fill="both", expand=True)
root.mainloop()
解决方案
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