Answer:
- Based on the given script, the result would be B. A spiraling
- The correct answer is A. btn.pack(). To create a button on the canvas, you need to specify its position within the Tkinter window. Here is the completed script :
star.from tkinter import *
tk = Tk()
btn = Button(tk, text="click me")
btn.pack()
tk.mainloop()
3. To create a line from (0, 0) to (500, 500) using Tkinter, you can use the `create_line()` method of the `Canvas` widget. Here's how you can modify the given script to create the line:
```python
from tkinter import *
tk = Tk()
canvas = Canvas(tk, width=500, height=500)
canvas.pack()
# Create the line
canvas.create_line(0, 0, 500, 500)
tk.mainloop()
```
4. To create a triangle using Tkinter, you can use the `create_polygon()` method of the `Canvas` widget. Here's how you can modify the given script to create a triangle:
```python
from tkinter import *
tk = Tk()
canvas = Canvas(tk, width=500, height=500)
canvas.pack()
# Create the triangle
triangle_coords = [250, 100, 100, 400, 400, 400]
canvas.create_polygon(triangle_coords, outline='black', fill='red')
tk.mainloop()
```
5. To change the color of an object created using Tkinter's `create_polygon()` method, you can use the `itemconfig()` method of the `Canvas` widget. Here's the correct code to change the color of the object to a different color:
```python
from tkinter import *
tk = Tk()
canvas = Canvas(tk, width=400, height=400)
canvas.pack()
myObject = canvas.create_polygon(10, 10, 10, 60, 50, 35, fill='red')
# Change the color of the object
canvas.itemconfig(myObject, fill='blue')
tk.mainloop()
```
6. To create a blue ball object using the given Ball class, you can use the following code:
```python
canvas = Canvas(tk, width=500, height=500)
canvas.pack()
blue_ball = Ball(canvas, "blue")
```
7. The correct way to add a new attribute "size" to the Ball class definition is option A:
```python
def __init__(self, canvas, color, size):
self.size = size
```
Step-by-step explanation:
- The script creates a turtle object named S1 and then uses a for loop to iterate 20 times. In each iteration, the turtle moves forward by a distance that increases with each iteration (i * 10), and then turns right by 144 degrees. This pattern of movement creates a spiral shape resembling a star.
- The pack() method is used to organize and display the button within the Tkinter window. By calling btn.pack(), the button will be positioned based on the default packing rules.
- By adding the line `canvas.create_line(0, 0, 500, 500)`, you are instructing the canvas to draw a line from the coordinates (0, 0) to (500, 500).
- In this example, the `create_polygon()` method is used to create a polygon shape, which can be used to create a triangle. The `triangle_coords` variable holds the coordinates of the triangle's three vertices (x1, y1, x2, y2, x3, y3).You can modify the values in `triangle_coords` to adjust the position and shape of the triangle. The `outline` parameter sets the color of the outline of the triangle, and the `fill` parameter sets the color of the triangle's interior.
- The line `canvas.itemconfig(myObject, fill='blue')` is used to modify the fill color of the object. In this case, it changes the color to blue. You can replace `'blue'` with any other valid color name or color code to achieve the desired color for your object.
- By passing the canvas object and the color "blue" as arguments when creating a new instance of the Ball class (`Ball(canvas, "blue")`), you will create a blue ball object on the canvas. The `canvas` object is assumed to be already created and assigned to the `tk` variable.
- In this option, the "size" attribute is included as a parameter in the `__init__` method, and it is assigned to `self.size`. This allows each instance of the Ball class to have its own "size" attribute, which can be accessed and modified as needed.