Subject:
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Re: Have you got your NXT yet?
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 5 Jul 2006 12:44:09 GMT
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Viewed:
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5846 times
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In lugnet.robotics, Philippe Hurbain wrote:
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I can’t seem to get a parallel processes within a loop. The
NXTG software doesn’t let me.
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Unfortunately, you’re right...
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I’m not so sure. Try the following technique on your copy, in case something
is broken in my version of the editor. To make a parallel sequence, you just
drop an orphan block (one not attached to an existing sequence) and then wire a
sequence beam to it by holding down shift while clicking on an existing sequence
beam to draw out a new one. The catch? Those elastic loops shrink-fit around
the inner code, leaving no “blank” sheet inside the loop to drop the orphan
block. What you need is a “crowbar” (I think Kevin introduced me to the term) to
open up the loop:
Notice the crowbar (I think) needs to be attached to the primary sequence in the
loop. Do all the wiring etc with the crowbar in place (and you could expand the
crowbar still further by dropping things into it), and then when the program is
finished pull out (delete) the crowbar. The loop will shrink to fit when the
crowbar is removed. It may (for several parallel sequences) hide some of the
code. But it will still work. In some cases, you can simple open the datahub of
a Draw block to get enough room to drop a simple second sequence.
Note that this example doesn’t actually do what I thought it would do. I would
have thought that the loop does not wait for the completion of the lower
sequence, but it seems it does. To put it another way, the loop only loops after
*both* sequences within it finish.
--
Brian Davis
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Message has 1 Reply:
Message is in Reply To:
 | | Re: Have you got your NXT yet?
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| (...) If you check "Control: Power Power", the motor speed will be regulated. At very low power settings (<10) it may be somewhat unstable. This checbox is available with "Motor" block, not "Move" block. (...) Unfortunately, you're right... Philo (18 years ago, 3-Jul-06, to lugnet.robotics)
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