Michael Aivaliotis
-
Posts
6,196 -
Joined
-
Last visited
-
Days Won
104
Content Type
Profiles
Forums
Downloads
Gallery
Posts posted by Michael Aivaliotis
-
-
Hmm, I never had my hands on the Lego Robolab development system but I believe that it is a special version of LabVIEW in such a way that the VIs are somehow signed to only work in the Robolab software. On the other hand normal VIs will also not run in the Robolab software, much like the limitations of VIs with earlier evaluation versions of LabVIEW. Probably not something you couldn't overcome with some digging, but well..
Well, you know what can happen if our advanced LV developers here on the forums get an idea stuck in their heads:
http://forums.lavausergroup.org/index.php?showforum=29
Let's not go down that path...
My son was a little too young or the mindstorms kit this past Christmas, so I held off. I think i will definitly look into NXT this year.
-
I have a hunch...I think you missed where I said in the 2nd sentance; "My laptop" = no PCI/AGP slots and no way to upgrade other than memory. But yes, the quick and dirty solution would be to raise the min requirements to run my program but that would take away from my target market.Based on my experience, new LV developers usually pass data to the UI by using the value property and most of the time with ctrl references. I don't want to stereotype but if I'm wrong, let me know. This might be your problem since this method of passing data is slow. If you can, just wire data to the terminals of the indicators by a wire or use a local. If it is too much work to re-write your code then you can use the "defer panel updates" property.
-
Thanks a lot! Go and show the world my ugly webpages from days gone by... I guess like LV, my web site development skills have evolved...
-
Yes, do a search on build array, shift register, x-y graph, whatever! I am just a rookie, you all can say what you like, but don't forget you also grew up from a student.
Why not tell me to do a search in google? Everything need a beginning, don't be so pride. Still thanks that you tell me the great help by using "search" something in the LV help
The keywords I asked you to search for are components used in building the solution.
Based on the fragment of information you gave me in your original post, I was able to come up with something...
Make sure to quote your sources in your school report. LAVA Forums... ya right.
-
I love this... hey guys, where's that post stupid/please-make-my-homework/offending questions here" forum? that i2dx mentioned a while back?Anybody can tell me that how to do the following things in labview?Basically, I need a n dimension array which can take as much data as user inputs, after a few calculations, each entry in the array will refer to a number. At last the program can plot them on a graph whose x-axis stands for the data, and y-axis stands for result.
Cause I am a student, teacher throw this question to me without any instruction, I need some help.
Do a search on build array, shift register, while loop, xy graph, in the LV help...
-
How about LabVIEW Advanced Virtual Architect Globals? LAVA Globals?
-
My bad...Look deeper.
-
Yes, it also means my boss won't buy it for me... :thumbdown:WHAT ARE SINGLE AND DUAL LINKS ?Just reading this over lunch;
The video card needs 850 Watts of power to run
!!!!! Guess that leaves laptop computing out of the question... -
At the moment, no LEGO products work with LabVIEW proper.
Jason, I can understand the marketing behind it but c'mon! Doesn't that just suck with a capital S? I mean I can use my developer suite which costs thousands of dollars to control hardware which is also worth thousands of dollars but I can't control a stupid RCX brick worth not even $100? Can't you guys throw us a bone like a driver or something? It would be so cool if my son could use the same software to program his mindstorms robot that daddy uses at work...
If you look at this guide, it just looks like a bunch of VI's. Can't you get those VI's for standard LV?
http://www.legoeducation.com/sharedimages/..._Quickstart.pdf
-
Thank you Jon, you're a life savor
.Who's Jon?
Anyway, it seems like you solved your problem. I think the easiest solution would have been to use a case structure. You don't really want to update anything, so when data is bad, case-out the data updating code. Am I missing the point?
-
Can you explain a little bit more of what your fears are? It seems that Jim's edited version works fast and does everything you need.but then, my fear, it could be to slow to set the items of the right-menu with the activation event did not come true ... -
hmm...its quite hard for me to get the DAQ card becuz of my current location...
Don't wanna be rude but c'mon! National Instruments ships anywhere, even Malaysia. Beside's that, there are dozens of other vendors. Your computer has USB? You can get a DAQ USB device now for less than a mouse. Call up Irene, she'll hook you up:
-
I was thinking, how to measure the Level of Evolution using LabVIEW?
Well, maybe not along those lines but I had a discussion with someone about how you can come to a considerable conclusion about someone's personality by looking at their LV code. This would require you to look at code over several years of coding experience of the individual. All of our programming styles have evolved over time to their current state.
For example, if you use queues a lot in your code, does that that mean you are an adventurous type? Perhaps if you used them within the first year of development...?
What icon colours do you use? Do you create fancy icons or are you a plain text kinda person? I'm sure there is a pattern here which may even come down to the number of bends you have in your wires, if you have any
. I'm telling ya, coding style tells a lot about a person... -
Can you not use the Variant to Flattened String? This should give the current LV8 type descriptor data?In LabVIEW 8.0, the Flatten To String function has an option called Convert 7.x Data that causes the familiar type descriptor output to appear.
My question is this: If LabVIEW 8.0 and later stores type descriptors in 32-bit flat representation, how to we access LabVIEW 8.0+ type descriptors? Has anyone found a way to access and decode these? It seams like the documentation is recommending that we "rework" for this new format, but I can't seem to find anything that leads down this trail.
-
No, the button does not have an event however for us developers who like to use Ctrl+Period, there is still a way to have your cake and eat it too. You can hide the button bar and trap the Ctrl+Period event. This allows you to terminate gracefully even though you are a hardcore Ctrl+Period user. Another nice perk about this feature is that when built into an exe, the APP_STOP menu event goes away automatically.No, the abort button/function does not have an event associated with it.
-
I'm not sure what this is... I know I have a DVI output on my laptop but is it dual-link? Hmm.Requires a dual-link DVI-D graphics card that supports WQXGA (2560x1600) resolution. -
What indicator are you using to display the images in your VI? Picture control?I have made a LabView application that works like a webcam software for Windows.Those Vi's are capable for video recording in .avi format and snap images in .bnp format.
-
The Microsoft bigwig teamed up with Napoleon Dynamite in this spoof video from PDC 2005. The camera's a little shaky, but you get the idea.
-
I saw it in another thread that was commenting on how NOT to program in LabView (lots of local/globals). Is this feature in express 7.0 pro? I can't find it if it is and I'm betting I missed this feature by 0.1 versions
Yes this Navigation Window feature is in 7.1 only.
-
Nice reply from Stephen, but he's not offering any solutions. The implementation seems simple to me but of course I don't know the inner workings of LV. Just keep track if the user has manually resized the constant. If they have, then keep it that way. Auto-update shouldn't update the width. It seems that this is the most prefered behaviour.
-
I have a pet peeve of LabVIEW 7.1.
I have a strict-typed enum constant inside of an array constant on the block diagram. Sometimes I resize the width of the enum to see the full text. When I update the strict-type of the enum with new values, the width of the enum reverts back to some standard width. I cannot figure out what LV uses as the default width and where this comes from. It doesn't appear to use the smallest text width or the largest. I wish LV kept the width as I had originally set it. If no-one has any solutions, I'll move this post to the wish list...
-
This is the holiday cheer thread. Feel free to add a reply of greetings for all members.
I spent the first holidays in my new home. It was strange. Christmas eve was warm, not a cloud in the sky and the temperature was warm: 20 celsius. It's really not Christmas unless you have snow on the ground...
-
Some of you may be using this type of lock for your system:
Watch a video that shows you how to break into it..
http://www.toool.nl/kensington623.wmv
Makes you think twice about trusting these things eh?
-
Up to LV6.1 there was an option that was called "free memory as soon as possible". In LV7 this option has gone.
Yes, but it's now available as a function:
Chart stacked plots freezing LV
in LabVIEW Bugs
Posted
I'm surprised that NI support was no help. I was able to reproduce it in 2 mins even in 711. Must be a reported bug already... strange. All I did was:
Enjoy.