Subject:
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Re: Displaying multiple variables
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Newsgroups:
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lugnet.robotics.nxt
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Date:
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Sat, 17 Nov 2007 20:36:12 GMT
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Viewed:
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28602 times
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In lugnet.robotics.nxt, Edwin Pilobello wrote:
> How can we do this more elegantly? Perhaps even
> adding a description and show on two lines?
There are lots of ways to display such information on the NXT LCD. The easiest
is probably to draw one number, and then use a second Display block to draw a
second number - just uncheck the "clear screen" checkbox on the second Display
block.
As to doing it more elegantly, I ended up making a My Block that will accept a
number, a line, and a label (text string - you need v1.1 to do this part), and
draw it on the screen, even clearing the spaces after the value you print and
giving you the option of either clearing the screen or not clearing the screen.
And the whole thing is about five blocks long. If you want to use it as an
example, I recently put it up on NXTlog along with a simple math program that
uses a number of these "helpful My Blocks":
http://mindstorms.lego.com/nxtlog/projectlist.aspx?SearchText=hailstone
(right now that will list both part one and part two - there's a number of handy
My Blocks in there, and the program itself, dealing with Hailstone numbers, is
kind of fun.. well, OK, it's fun if you happen to be me or some other math
geek).
> Of course this probably means doing a concatenation...
True - but that's just a single block. And line feeds don't actually work in
NXT-G (at least as far as I can tell)
--
Brian Davis
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Message has 2 Replies:
 | | Re: Displaying multiple variables
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| (...) There's also Steve Hassenplug's Display Number block (find it here (URL) along with some other NXT-G goodies). I use this all the time to display values for debugging. John (17 years ago, 19-Nov-07, to lugnet.robotics.nxt)
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Message is in Reply To:
| | Displaying multiple variables
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| Yesterday, I had a student who wished to display two numeric variables on the screen. We ended up multiplying the first by 1000 then adding the second. This we displayed and read as a packed variable with two shifted values. How can we do this more (...) (17 years ago, 17-Nov-07, to lugnet.robotics.nxt)
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