Re: p2dProxy.GetYaw() problem

On Friday 10 May 2013 09:11:32 light86 wrote:
> hi every body
> this my code
> y=p2dProxy.GetYaw  (); the value of y is 1.570796x
> 
> when i test the value of y(
> if y=1.570796x printf ("sucess");
> it don't work please help me
> 
> Thank you

This is not a player issue but a programming one.  You need to look at how 
numbers are represented and the fact that they are (almost) always 
approximations (for example, a computer, using "normal" math libraries cannot 
represent 2/3).

In your case it is likely that the value in fact needs many more digits to get 
its actual value (unless otherwise specified, displaying a float only displays 
a few of the digits).

Testing for equality is rarely the correct thing to do as equality is rather 
unusual when one talks about robotics.

Hope this helps.

Fred

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Learn Graph Databases - Download FREE O'Reilly Book
"Graph Databases" is the definitive new guide to graph databases and 
their applications. This 200-page book is written by three acclaimed 
leaders in the field. The early access version is available now. 
Download your free book today! http://p.sf.net/sfu/neotech_d2d_may