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The knowledge points of this article "how to use tkinter to draw random balls on transparent forms in python" are not quite understood by most people, so the editor summarizes the following contents. The content is detailed, the steps are clear, and it has a certain reference value. I hope you can get something after reading this article. Let's take a look at this article entitled "how to use tkinter to draw random balls on transparent forms in python".

First, draw a big ball and have a look

(1) Core Code

Add the following code to draw a circle inside the on_resize function

Canvas.create_oval (100,100,200,200, outline='yellow', # border color fill='pink', # fill color width=4 # border width) 2. Let the ball move randomly

(1) Core function

Def create_ball (canvas,tk): # tkinter drawing uses screen coordinate system, the origin is in the upper left corner, x increases from left to right, y increases from top to bottom # in the drawing area, the x and y coordinates of the center of the current ball are randomly generated. Used to determine the location of occurrence xpos = randint (10, int (tk.winfo_width () ypos = randint (10, int (tk.winfo_height () # randomly generated to represent the size of the current ball, that is, the radius length radius = randint (40,70) # create a function object r through lambda expression Each call to r () produces the number r = lambda: randint (0,255) # the first two digits of the three calls are stored in self.color in hexadecimal mode, as the color of the ball # RRGGBB, the first 2 is red, the middle 2 is green, the last 2 is blue, and the minimum is 0 The maximum is F # such as all Black # 000000 all White # FFFFFF all Red # FF0000 color = "# xxx"% (r (), r (), r ()) # canvas.create_oval can draw a circle # but you need to pass in the left, upper, right and bottom coordinates of the circle # so we first generate four coordinates, through these four coordinates Draw the size of the circle # left coordinate = x coordinate-radius x1 = xpos-radius # upper coordinate = y coordinate-radius y1 = ypos-radius # right coordinate = x coordinate + radius x2 = xpos + radius # coordinate = y coordinate + radius y2 = ypos + radius # draw the whole circle by canvas.create_oval () method The filler color and the outline color are the colors canvas.delete ('ball') ball = canvas.create_oval generated by self.color (x1, fill=color, outline=color,tag='ball') # canvas.addtag_all (' t5') print (x1, create_ball,canvas,tk) canvas.after (1000, create_ball,canvas,tk) three and more parameters.

(1) remove the title bar

Tk.overrideredirect (1)

(2) display on the top

Tk.wm_attributes ("- topmost", 1)

(3) remove the white edge next to it

Canvas.config (highlightthickness=0) above is about "how to use tkinter in python to draw random balls on transparent forms". I believe we all have a certain understanding. I hope the content shared by the editor will be helpful to you. If you want to know more about the relevant knowledge, please pay attention to the industry information channel.

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