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ask for an explaining for the code below

vect

asked 2014-03-01 05:07:16 -0600

York
1 ●1 ●1 ●1

vector<vector<point> > contours_poly( contours.size() );

i want to know details of this code;double vect<> and ( contours.size() more clear will be better,im new to that,thanks in advance!

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you can try to imagine vector<point> is a vector so vector<vector<point> is the vector of the vector,so it is a 2d matrix.

wuling ( 2014-03-02 10:47:10 -0600 )edit

good explaining！ IM a shandong guy， nice to come cross U my fellow bro！

York ( 2014-03-03 07:14:57 -0600 )edit

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answered 2014-03-01 10:42:46 -0600

Siegfried
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Hi, the code in the frist line creates a std::vector contours_poly containing vectors of points. The vector contours_poly is created with a size of contours.size(). More information about the constructors of std::vector can you see here.

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Asked: 2014-03-01 05:07:16 -0600

Seen: 126 times

Last updated: Mar 01 '14

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