Python Wand arc()用法及代碼示例

arc()是wand.drawing模塊中存在的函數。 arc()函數在圖像中繪製圓弧。您需要定義三對(x，y)坐標。第一對和第二對坐標將是最小邊界矩形，最後一對將定義開始和結束度。

用法：

wand.drawing.arc(start, end, degree)

參數：

參數	輸入類型	描述
start	序列或(數字。實數，數字。實數)	表示弧的x和y的起點。
end	序列或(數字。實數，數字。實數)	表示圓弧的x和y的終點。
degree	序列或(數字。實數，數字。實數)	代表開始程度和結束程度的對

範例1：

# Import required objects from wand modules 
from wand.image import Image 
from wand.drawing import Drawing 
from wand.color import Color 
  
# generate object for wand.drawing 
with Drawing() as draw:
    # set stroke color 
    draw.stroke_color = Color('black') 
    # set width for stroke 
    draw.stroke_width = 1
    # fill white color in arc 
    draw.fill_color = Color('white') 
    draw.arc(( 50, 50),  # Stating point 
             ( 150, 150),  # Ending point 
             (135, -45))  # From bottom left around to top right 
    with Image(width = 100, 
               height = 100, 
               background = Color('green')) as img:
        # draw shape on image using draw() function 
        draw.draw(img) 
        img.save(filename ='arc.png')

輸出：

範例2：

源圖像：

# Import required objects from wand modules 
from wand.image import Image 
from wand.drawing import Drawing 
from wand.color import Color 
  
# generate object for wand.drawing 
with Drawing() as draw:' 
    # set stroke color 
    draw.stroke_color = Color('black') 
    # set width for stroke 
    draw.stroke_width = 1
    # fill white color in arc 
    draw.fill_color = Color('white') 
    draw.arc(( 50, 50),  # Stating point 
             ( 150, 150),  # Ending point 
             (135, -45))  # From bottom left around to top right 
    with Image(filename ="gog.png") as img:
        # draw shape on image using draw() function 
        draw.draw(img) 
        img.save(filename ='arc.png')

輸出：

相關用法

注：本文由純淨天空篩選整理自RahulSabharwal大神的英文原創作品 Wand arc() function in Python。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。