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添加图形的浮动值
原标题:add a float value to a tuple
  • 时间:2011-07-25 14:33:49
  •  标签:
  • list
  • tuples

I get x y coordinates from a vision tool as text(string). I need to add a constant value to every x - element in this string.

with this statements a get a tuple of the original values and the command of my vision- tool needs a tuple as argument

above=GetValue( ObererBogen.FittedPoints )
above=above.replace( ((( , (( )
above=above.replace( ),),) , )) )
above=eval(above)

now I have a tuple named above with x,y-coordinates. But how add a constant value to each x-value ?

问题回答

最常见的方式可能是使用numpy

>>> import numpy as np
>>> a = np.add((3, 1), (2, 0))
>>> a
array([5, 1], dtype=int32)
>>> tuple(a)
(5, 1)

我把添加和转换成<代码>tuple(>)的步骤仅仅是为了显示,但如果你实际上能够这样做的话,那么你就能够做到<代码>。

否则,你就不得不做一些像<代码>a = (a[0] + 5, a[...])(尽管在技术上是最容易的解决办法,但出于各种原因,我始终不喜欢这种编号),或者说是“<编码>>>>>>>ttuple”型号,以作为添加适用于这些要素而不是归类或使用<编码>收集器的类型,而代号为工厂和<代码>_replace/code>所创建的类别。





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