Question

我想在我的Tinter画布上制作一个网格/粒子网格。然后我想使用canvas.move函数从文本文件中读取坐标来移动这些粒子。我试着把格子弄成一个循环。

from Tkinter import *
import random
import time
import csv


tk = Tk()
N = 100
T = 500
canvas = Canvas(tk, width=100, height=100)
tk.title("Test")
canvas.pack()
n = 5
t = 10

step1 = []
step2 = []
textFile1 = open('/Users/francislempp/Desktop/major project/C++        programs/Molecular Dynamics 2D/Molecular_Dynamics_2D-   gupnvjunowwmjcfiyoursdhzytow/Build/Products/Debug/motionX', 'r')
lines = textFile1.readlines()
for line in lines:
    step1.append(line.split(" "))

textFile2 = open('/Users/francislempp/Desktop/major project/C++ programs/Molecular Dynamics 2D/Molecular_Dynamics_2D-gupnvjunowwmjcfiyoursdhzytow/Build/Products/Debug/motionY', 'r')
lines = textFile2.readlines()
for line in lines:
    step2.append(line.split(" "))


class Ball:
    def __init__(self, color, size, x, y):
        self.shape = canvas.create_oval(10,10,size,size, fill = color)
        self.x = x
        self.y = y


    def move(self):
        canvas.move(self.shape, self.x, self.y)
        pos = canvas.coords(self.shape)
        if pos[3] >= 100 or pos[1] <= 0:
            self.y = -self.y
        if pos[2] > 100 or pos[0] <= 0:
            self.x = -self.x

    def delete(self):
        canvas.delete(self.shape)


balls = []



for i in range(99):
    for j in range(99):
        xcoord = i*(100/10) + 4
        ycoord = j*(100/10) + 4
        canvas.create_oval(xcoord,ycoord,2,2, fill = "red")
tk.update()



tk.mainloop()

当我运行我的代码时，它会使椭圆沿着屏幕向下移动并相互重叠。我想for循环在画布内放置100个粒子，间距相等。

Answer 1

您必须使用(x, y, x+1, y+1)甚至(x, y, x, y)来创建相同大小的小点。

import tkinter as tk

root = tk.Tk()

canvas = tk.Canvas(root, width=100, height=100)
canvas.pack()

for i in range(10):
    x = i*10 + 4
    for j in range(10):
        y = j*10 + 4
        canvas.create_oval(x, y, x, y, fill="red")
        #canvas.create_oval((x, y, x, y), fill="red") # or with `()`

root.mainloop()

或使用range()

中的所有参数

for x in range(4, 100, 10):
    for y in range(4, 100, 10):
        canvas.create_oval((x, y, x, y), fill="red")

编辑：以相同方向移动（随机）所有点

import tkinter as tk
import random

# --- functions ---

def move():
    x = random.randint(-1, 1)
    y = random.randint(-1, 1)
    for point_id in points:
        canvas.move(point_id, x, y)
    root.after(100, move)

# --- main ---

points = []

root = tk.Tk()

canvas = tk.Canvas(root, width=100, height=100)
canvas.pack()

for i in range(10):
    x = i*10 + 4
    for j in range(10):
        y = j*10 + 4
        point_id = canvas.create_oval(x, y, x, y, fill="red")
        points.append(point_id)
        #canvas.create_oval((x, y, x, y), fill="red") # or with `()`

move()
root.mainloop()

或者向不同方向移动每个像素

def move():
    for point_id in points:
        x = random.randint(-1, 1)
        y = random.randint(-1, 1)
        canvas.move(point_id, x, y)
    root.after(100, move)

在tkinter中创建点阵

1 个答案: