Python Wand path_curve()用法及代碼示例

path_curve()是專門為路徑引入的函數。 path_curve()在控製點的幫助下從圖像的目標點到特定點(x，y)繪製三次貝塞爾曲線。

用法：

wand.drawing.path_curve(to, controls, smooth, relative)

參數：

參數	輸入類型	描述
to	序列或(數字。實數，數字。實數)	代表要繪製到的坐標的一對。
controls	collections.abc.sequence或(numbers.Real，numbers.Real)	用於影響曲線的坐標
smooth	bool	假設最後定義的控製坐標
relative	bool	將給定的坐標視為相對於當前點。

範例1：

from wand.image import Image 
from wand.drawing import Drawing 
from wand.color import Color 
  
with Drawing() as draw:
    draw.stroke_width = 2
    draw.stroke_color = Color('black') 
    draw.fill_color = Color('white') 
    draw.path_start() 
    # Start middle-left 
    draw.path_move(to =(10, 100)) 
    # Curve accross top-left to center 
    draw.path_curve(to =(80, 0), 
                    controls =[(20, -80), (60, -80)], 
                    relative = True) 
    # Continue curve accross bottom-right 
    draw.path_curve(to =(80, 0), 
                    controls =(60, 80), 
                    smooth = True, 
                    relative = True) 
    draw.path_finish() 
    with Image(width = 200, height = 200, background = Color('lightgreen')) as image:
        draw(image) 
        image.save(filename ="pathcurve.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 path_curve() 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。