在 Python3 中使用 Arcade 绘制圆

街机库是一个高科技Python包，其中包含一组高级工具，可用于制作具有令人抓狂的图形和声音的 2D 游戏。它是面向对象的，专为Python 3.6 及以上版本构建。

Arcade 内置函数来绘制圆圈：-

1. arcade.draw_circle_outline( ) ：该函数用于绘制圆的轮廓。

Syntax: arcade.draw_circle_outline(center_x, center_y, radius, color, border_width, num_segments)

Parameters:

• center_x  – x position that is the center of the circle.
• center_y  – y position that is the center of the circle.
• radius  – width of the circle.
• color – color which with outline will be drawn.
• border_width – Width of the circle outline in pixels.
• num_segments – Higher is the number of segments, higher is the quality, but slower render time. The default value is -1 which means arcade will try to calculate a reasonable amount of segments based on the size of the circle.

举个例子——

Python3

#import module
import arcade
 
# Open the window. Set the window title and
# dimensions (width and height)
arcade.open_window(600, 600, "Draw  an arc  for GfG ")
 
#set background
arcade.set_background_color(arcade.color.WHITE)
 
# Start the render process.
arcade.start_render()
 
#function to draw a circle
arcade.draw_circle_outline(300, 285, 88, arcade.color.GREEN, 9,-1)
 
#finish drawing
arcade.finish_render()
 
#to display everything
arcade.run()

输出：

因为，现在您知道如何绘制圆形的简单轮廓。让我们使用这个 arcade.draw_circle_outline( ) 绘制奥林匹克旗帜。

蟒蛇3

#import module
import arcade
 
# Open the window. Set the window title and
# dimensions (width and height)
arcade.open_window(600, 600, "Draw  an arc  for GfG ")
 
# set background color
arcade.set_background_color(arcade.color.WHITE)
 
# Start the render process.
arcade.start_render()
 
# function for designing olympic flag
arcade.draw_circle_outline(100, 285, 88, arcade.color.BLUE, 9, -1)
arcade.draw_circle_outline(300, 285, 88, arcade.color.BLACK, 9, -1)
arcade.draw_circle_outline(500, 285, 88, arcade.color.RED, 9, -1)
arcade.draw_circle_outline(200, 185, 88, arcade.color.YELLOW, 9, -1)
arcade.draw_circle_outline(400, 185, 88, arcade.color.GREEN, 9, -1)
 
# finished drawing
arcade.finish_render()
 
# to display everything
arcade.run()

输出：

2. arcade.draw_circle_fill()：该函数用于绘制彩色实心圆。

Syntax: arcade.draw_circle_outline(center_x, center_y, radius, color, num_segments)

Parameters:

• center_x  – x position that is the center of the circle.
• center_y  – y position that is the center of the circle.
• radius  – width of the circle.
• color – color which with outline will be drawn.
• num_segments – Higher is the number of segments, higher is the quality, but slower render time. The default value is -1 which means arcade will try to calculate a reasonable amount of segments based on the size of the circle.

举个例子——

蟒蛇3

#import module
import arcade
 
# Open the window. Set the window title and dimensions (width and height)
arcade.open_window(600, 600, "Draw  a circle  for GfG ")
 
# set background
arcade.set_background_color(arcade.color.WHITE)
 
# Start the render process.
arcade.start_render()
 
# draw circle
arcade.draw_circle_filled(300, 450, 78, arcade.color.PINK, 0)
 
 
# finish drawing
arcade.finish_render()
 
# to display everything
arcade.run()

输出：

因为，现在您知道如何绘制圆形的简单轮廓。让我们用这个 arcade.draw_circle_filled( ) 画一个雪人。

蟒蛇3

#import module
import arcade
 
# Open the window. Set the window title and
# dimensions (width and height)
arcade.open_window(600, 600, "Draw  a circle  for GfG ")
 
# set background
arcade.set_background_color(arcade.color.WHITE)
 
# Start the render process.
arcade.start_render()
 
# snowman upper part
arcade.draw_circle_filled(300, 450, 68, arcade.color.SKY_BLUE, 0)
 
# snowman eyes
arcade.draw_circle_filled(289, 475, 8, arcade.color.BLACK, 0)
arcade.draw_circle_filled(329, 475, 8, arcade.color.BLACK, 0)
 
# snowman lower part
arcade.draw_circle_filled(300, 350, 88, arcade.color.BLUE, 0)
arcade.draw_circle_filled(300, 250, 108, arcade.color.SKY_BLUE, 0)
 
# finish drawing
arcade.finish_render()
 
# to display everything
arcade.run()

输出：