Question

我想在tkinter中创建一个矩形，它会随着输入的数据不断改变大小。我使用套接字接收数据，并希望显示一个矩形和一个圆。在每个循环中，矩形改变大小并更新圆的位置。当使用代码只是圆，它工作正常。但不是矩形的代码。我试过coords和item config。它不起作用。有人可以帮忙吗？如果使用tkinter无法做到这一点，是否有人可以建议另一个库？

import socket



s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
host = '169.254.1.248'

port=1992
s.bind((host,port))
s.listen(5)
cl,address = s.accept()


from tkinter import *
root = Tk()
root.overrideredirect(1)
root.geometry("320x240+0+0")





cnv1 = Canvas(root, width=38, height=240)
cnv1.pack(side="left",fill=BOTH,expand=1)
cnv2 = Canvas(root, width=276, height=240)
cnv2.pack(side="right",fill=BOTH,expand=1)
cnv1.create_rectangle(2, 2, 36, 237, fill="lightblue")
cnv2.create_rectangle(2, 2, 273, 237, fill="lightblue")
cnv2.create_line(2,119.5,273,119.5)
cnv2.create_line(137.5,2,137.5,237)
circ1=cnv1.create_oval(19,118.5,21,120.5, outline="lightblue", fill="",   width=0)
circ2=cnv2.create_oval(134,116,140,122, outline="lightblue", fill="", width=1)
rect=cnv2.create_rectangle(2, 2, 4, 5, fill="", outline="", width =1)

def measurementvolume(z):
    z2 = 2400;z1 =800;x2=1300;x1=400;y2=1500;y1=400
    slope=((x2-x1)/(z2-z1))
    offset = x2-(slope*z2)
    vb=(slope*z) + offset
    slope= ((y2-y1)/(z2-z1))
    offset = y2-(slope*z2)
    hb=(slope*z) + offset
    return [vb,hb]

while True:
    msg=cl.recv(1024)
    strmsg=msg.decode()


    if 'nodata' not in strmsg:

            coords=strmsg.split()
            del strmsg

            cx=(float(coords[0]))/5.51
            cy=(float(coords[1]))/5.51
            cx=cx+117.5
            cy=135.5-cy ##if x axis is not inverted
            cz=float(coords[2])
            cz=-800-cz
            cz=cz/6.78
            boundary=measurementvolume(cz)
            bx=boundary[0]/5.51
            by=boundary[1]/5.51
            upco1=135.5-(abs(by)/2)
            upco2=117.5-(abs(bx)/2)
            upco3=upco1+abs(by)
            upco4=upco2+abs(bx)
            if (abs(by) > cy) and (abs(bx) > cx):
                    cnv2.itemconfig(rect,outline="black",fill="red", width=2)
                    cnv2.coords(rect,upco1,upco2,upco3,upco4)
                    cnv2.itemconfig(circ2,outline="black", fill="black", width=3)
                    cnv2.coords(circ2,cy-3,cx-3,cy+3,cx+3)
                    cnv1.itemconfig(circ1,outline="black", fill="black", width=3)
                    cnv1.coords(circ1,16,cz-3,22,cz+3)


            del cx,cy,cz

    else:

            del strmsg

            cnv2.itemconfig(rect,fill="", outline="lightblue", width =0)
            cnv2.coords(rect,2, 2, 4, 5)
            cnv2.itemconfig(circ2,outline="", fill="", width=0)
            cnv2.coords(circ2,134,116,140,122)
            cnv1.itemconfig(circ1,outline="", fill="", width=0)
            cnv1.coords(circ1,19,118.5,21,120.5)


    root.update()




cl.close()

不断更改矩形python tkinter

0 个答案: