[robocup-humanoid] About the ball and goal

[Oskar von Stryk]

Hi Qing Tang,

> The main problem about the ball for my team is not whether we use the orange tennis ball or hockey ball, but how to get the official match ball. So if any team could distribute the ball for the other teams on favour, it would do much favour for us.

As far as I know most teams got the orange tennis ball from
http://www.courtsidesports.com/store/product/3701/Championship-Tennis-Balls---Orange-Tube-3-Balls--/
In our case they did not ship directly to Germany therefore we
asked a US team for help (which bought it and send it to us then).

You should try if you can order directly from there (or from another 
source).

In case it is not possible,

- you could ask another team for help in buying balls, or

- you could ask if a team has a spare ball which they are willing to
 	sell and send to you, or

- you just paint a standard white tennis ball with an orange color
 	(we also did this earlier, it is not perfect but a feasible
 	intermediate solution).


> As according to the rule: The goals will be changed to look more like soccer goals and more similar to the SPL. Could any team (Darmstadt Dribblers?) could offer a picture of the new goal? Then we would have similar one for our test.

The geometry of the new goals has already been posted on the mailing list 
earlier (following the team leader voting in Graz).

Please have a look at the attached pictures of the new 
goals in our robot simulator (thanks go to Martin Friedmann who priveded 
them).

I think special care must be taken with the net in the back.
The mesh should be fine to avoid robots getting tangled in it too easily.
Pure white color should also be avoided for the net in order to avoid
that the net lines are being mistaken from field lines. Probably grey 
or black color would be best.

We have not yet completed the new goals in our lab. Therefore I cannot 
send you the pictures of the new goals at this time.

Best regards,
Oskar
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