Norm function for Point2f and Point3f

asked 2013-02-09 10:39:09 -0600

benzun
56 ●2 ●7

When i try to use the norm function for the classes of the template Point_ and Point3_ I get an error that says that there is no known conversion from Point_ to InputArray. Is this a bug? Please tell me how to resolve this. I can write my own norm function but that does not solve the problem.

Also norm seems to do ok with Point but not Point2f.

I am using opencv 2.3.1 do i need to upgrade?

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answered 2013-02-10 04:22:18 -0600

berak
32993 ●7 ●81 ●312

as of 2.4.2, it seems to work with all sorts of points here, so an upgrade might help.

in the meantime, you can calc your own norm:

Point3f p(17,1,8);
//double l = norm(p);
double l = sqrt( p.x*p.x + p.y*p.y + p.z*p.z );

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Thanks for verifying it berak. I will mostly upgrade to newer version but now I will use my own function.

benzun ( 2013-02-18 12:05:25 -0600 )edit

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Asked: 2013-02-09 10:39:09 -0600

Seen: 5,498 times

Last updated: Feb 10 '13

Norm function for Point2f and Point3f edit