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  • Committer: GitHub
  • Author(s): dessant
  • Date: 2016-12-14 17:50:19 UTC
  • mfrom: (3773.4.12)
  • Revision ID: git-v1:cc9c5f91b3adf70be9b92c2013ed330e9aec4d63
Merge pull request #4795 from kivy/pep8_fixes

[WIP] Pep8 fixes of the current master

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kivy/vector.py
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        For math see: http://en.wikipedia.org/wiki/Line-line_intersection
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        '''
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        #linear algebar sucks...seriously!!
 
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        # linear algebar sucks...seriously!!
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        x1, x2, x3, x4 = float(v1[0]), float(v2[0]), float(v3[0]), float(v4[0])
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        y1, y2, y3, y4 = float(v1[1]), float(v2[1]), float(v3[1]), float(v4[1])
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        >>> Vector.segment_intersection(a, b, c, d)
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        [5, 5]
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        '''
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        #Yaaay! I love linear algebra applied within the realms of geometry.
 
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        # Yaaay! I love linear algebra applied within the realms of geometry.
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        x1, x2, x3, x4 = float(v1[0]), float(v2[0]), float(v3[0]), float(v4[0])
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        y1, y2, y3, y4 = float(v1[1]), float(v2[1]), float(v3[1]), float(v4[1])
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        #This is mostly the same as the line_intersection
 
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        # This is mostly the same as the line_intersection
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        u = (x1 * y2 - y1 * x2)
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        v = (x3 * y4 - y3 * x4)
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        denom = (x1 - x2) * (y3 - y4) - (y1 - y2) * (x3 - x4)
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        px = (u * (x3 - x4) - (x1 - x2) * v) / denom
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        py = (u * (y3 - y4) - (y1 - y2) * v) / denom
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        #Here are the new bits
 
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        # Here are the new bits
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        c1 = (x1 <= px <= x2) or (x2 <= px <= x1)
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        c2 = (y1 <= py <= y2) or (y2 <= py <= y1)
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        c3 = (x3 <= px <= x4) or (x4 <= px <= x3)