tkinter-canvas

问题 Description I have began refactoring some code based on the future warning of matplotlib, to re-use the initially defined axes object. However, I noticed that whenever I was re-using my axes object, the image size would be variable. Since, I have managed to isolate the problem to the axes.imshow method as after using imshow , the y-axis of any subsequent drawing on that axes has a y-axis that seems to rescale. The feeling I have is that the y-axis scale is retained from the initial image that

问题 I'm trying to execute the code found in one of the Stackoverflow answers. It's a single window application with 2 circles which can be moved with the mouse. When I move circles - I see artifacts. See Sample Program code: import tkinter as tk TOKENWIDTH = 10 class Example(tk.Frame): '''Illustrate how to drag items on a Tkinter canvas''' def __init__(self, parent): tk.Frame.__init__(self, parent) # create a canvas self.canvas = tk.Canvas(width=400, height=400, bg="white") self.canvas.pack(fill=

问题 I am in the process of learning tkinter on Python 3.X. I am writing a simple program which will get one or more balls (tkinter ovals) bouncing round a rectangular court (tkinter root window with a canvas and rectangle drawn on it). I want to be able to terminate the program cleanly by pressing the q key, and have managed to bind the key to the root and fire the callback function when a key is pressed, which then calls root.destroy() . However, I'm still getting errors of the form _tkinter

问题 I am working on a game project for school, which look like this : In-game aspect I have created these colored polygons like this : ship = can.create_polygon(410,650,450,600,490,650 , fill= 'red' , outline='black') ennemies = can.create_rectangle(x-r, y-r, x+r, y+r, fill='green') So now i want to fill them with my own image. Is that possible ? And how ? 回答1: from tkinter import * # create the canvas, size in pixels canvas = Canvas(width=300, height=200, bg='black') # pack the canvas into a

问题 I have a Tkinter canvas populated with text and canvas windows, or widgets, created using the create_text and create_window methods. The widgets I place on the canvas are text widgets, and I want to insert text into them after they are created and placed. I can't figure out how to do this, if it's even possible. I realise you can edit them after creation using canvas.itemconfig(tagOrId, cnf) , but text can't be inserted that way. Is there a solution to this? 回答1: First, lets get the

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . I'm having trouble converting a postscript (.eps) file to any kind of image. Whenever I use PIL to save the loaded .eps file the quality of it is horrible and text rendered in tkinter is unreadable. I think this is because the .eps file is some sort of vector image and saving it using PIL doesn't render the

问题 First of all, take a look at my previous thread here: Tkinter understanding mainloop After following the advice from there, in GUI programming, infinite loops have to be avoided at all costs, in order to keep the widgets responsive to user input. Instead of using: while 1: ball.draw() root.update() time.sleep(0.01) I managed using self.canvas.after(1, self.draw) inside my draw() function. So my code now looks like this: # Testing skills in game programming from Tkinter import * root = Tk()

问题 This is for example a create_text: self.__canvas.create_text(350, lineVotes, text=str(likesPrinted), font=("calibri", 30), fill="#66FF99", anchor=E) How could I delete this with a button? 回答1: One way to do it is by using the object ID that all Canvas object constructors return: self.text_id = self.__canvas.create_text(350, lineVotes, text=str(likesPrinted), font=("calibri", 30), fill="#66FF99", anchor=E) Then afterwards you can use the Canvas object's delete() method list like this: self._

问题 I'm working on a Python application using tkinter. What I want to do is to draw on canvas coordinates, and the points will be recorded to a list so I can do calculation later. If it's not possible, would you recommend any other tools or GUI platform that can do this? Edit: What I have so far is an application that can take points from a list and draw on the canvas. I would like the opposite way to work too. from tkinter import * from tkinter.filedialog import askopenfilename from tkinter

问题 Based on the example from Dynamically changing scrollregion of a canvas in Tkinter, I am trying to implement a Frame where you can add and delete entries in a scrollable Frame using tkinter. My Problem is that the Frame holding items does not resize after deleting entries. When adding entries, it resizes correctly. I call update_layout() in both cases: from tkinter import * class ScrollableContainer(Frame): """A scrollable container that can contain a number of messages""" def __init__(self,