I want to present sketches drawn in real time on the iPad. Suggestions?

Example:
During a talk to an audience I would like to connect my iPad to a projector (or computer connected to a projector) and sketch while describing what I'm drawing.
iPad: MC349LL - 16GB

Most reliable way to have an interactive remote presentation is by Video Conference, so find out if you and they have that facility. A Mac or Windows computer is plugged into the Video Conference system and you play the Keynote the way you want.
You also need to tie down exactly what the interview panel want, its there responcibility to provide the details, you dont appear to be clear what they want.

Similar Messages

When I use Call Library Function Node in real time, is the DLL loaded once for all or load every time it is called?

When I use Call Library Function Node in real time, is the DLL loaded once for all or load every time when it is called?
I have a time critical real time application, in which I use a piece of DLL function developed by C++. It is OK? Could any senior developer assure me?
Thank you in advance.
Solved!
Go to Solution.

qing_shan61 wrote:
When I use Call Library Function Node in real time, is the DLL loaded once for all or load every time when it is called?
Once
qing_shan61 wrote:
I have a time critical real time application, in which I use a piece of DLL function developed by C++. It is OK?
OK
Be sure that all DLL calls are thread safe (do not perform calls in UI thread).
Also for real-time application you need real-time OS.
Andrey.

Trouble getting a subvi to update a graph in real-time on the front panel

Hi All,
First post here, so play nice =). I am trying to update a graph on the front panel from within one of my subvis, however it does not update it in real-time. It will only show the completed graph after the subvi finishes running. I have tried to use references/property nodes and I have also tried using my chart as a global variable, but neither of those methods have worked (I am probably doing it wrong). Can anyone provide a detailed walk-through of how to do this using either one of those methods? Or perhaps even a different method?

ModusPwnens wrote:
This is how you do it, right?:
Try this for a quick demo of the reference method:
Create a VI as shown in the image.
Select only the while loop and do "edit...create subVI" (as shown). (you will get a subVI that contains the needed connectors and is alread wired to the reference)
Run the main VI, and the chart will update every 200ms.
Note that this is only a draft and many things are missing. (For example, the subVI cannot be stopped at the moment. Also, you want a graph, and not a chart.)
LabVIEW Champion . Do more with less code and in less time .
Attachments:
updateViaSub.PNG ‏32 KB

Why can't I hear sound from my keynote presentation while using Apple TV? Presentation is in 5 days and this is my first time using the iPad for presentation.

I am new to apple. But a quick convert since I just went out and got the iPhone as well.
I am using keynote Apple TV and the iPad wireless
I made a mini movie in iMovie trailer and have it in my presentation. Everything mirrors perfectly except the sound on the audio. So I can see the movie just can't hear it.
Presentation is in 5 days and I'm starting to get nervous haha
Any help is hugely appreciated
Rob

is I learn still around -? That was VERY HANDY!

HT1386 I have connected my iPad2 to my iMac with a USB cable, and synched my photos. I want to synch my music from iTunes but get this message: "Are you sure you want to sync music? All existing content on the iPad "Marion Blackmer's iPad" will be remo

Sorry, I put my question in the wrong place. I'm afraid I will lose all my photos, etc., on the iPad.

To import your photos to iPhoto, open the app on oyur computer, then connect your iPad. wait for it to show up on the left toolbar and you can select all and import them to your iPhoto library. Drag and drop it to your desktop or wheverever you want them. Is it just photos you wanted to import?

How do I install real time player on ipad ?

Can not install real time player also can not install adobe player are there other programs that can be used to view video on comcast.net

You can only install apps that are available in the iTunes App Store on your computer, or the App Store app on your iPad - 'normal' PC or Mac software cannot be installed on the iPad, they are not compatible.
Flash player is not, and probably never will be, supported on the iPad : http://www.apple.com/hotnews/thoughts-on-flash/ . Plus it would be up to Adobe to make a version of their flash player that works on iOS devices - something which they have never managed to do and which they have now apparently given up on trying to do.
Browser apps such as Skyfire, iSwifter and Puffin 'work' on some sites, but judging by their reviews not all sites. Also some websites, especially news sites, have their own apps in the App Store, so your could try checking there to see if the site(s) you use have their own app(s).

Help a newbie: drawing shapes (but seeing it drawn in 'real' time)

Hi guys,
I'm a complete Java newbie, but I'm learning it for my senior project in physics that deals with strong field laser physics modeling. My question actually doesn't pertain to any of that though.
I have a little applet that just draws a snowman, but my friend (who's a really good girl friend of mine) would like to see the shapes being drawn, like appearing from nothing, then being created as the applet runs. Does that make sense? I have no idea how to make something 'trace' or create or cirlce a rectangle slowly. Any help would be appreciative. Thank you.
Adam

Make it run slower, by putting about a jillion other threads continuously factoring random odd integers ;)
Or re-write the line/circle drawing routines and put a pause between various steps.
Another possible option is taking off the buffer, but this may still be too fast with a lot of flickering.
Or just tell her you've got better things to worry about than lines drawing themselves slowly...

How to determine if in real time that the Cube is still processing by using DMV or MDX ?

Hi All,
I know that ther is no direct way of finding whether the cube is proceesing at the current instance with the help of MDX ot T-SQL(DMV).
Could any body please suggest alternatives for it for it.

Well, I put a measure in each measure group which is just getdate() on the sql side. This allows me to tell when a particular record was processed into the cube. I have aggregation set to max on this column as well. Not precisely
what you asked.
Are you processing using SSIS? You could always use the SSIS log tables.

HT4623 I still have 3.2 on my iPad. I want to get it updated. I have reset the iPad to original and wiped out everything. What do I need to do?

Need help updating the software on my iPad. Still has 3.2.2.

If you have an iPad 1, the max iOS is 5.1.1. For newer iPads, the current iOS is 6.1.3. The Settings>General>Software Update only appears if you have iOS 5.0 or higher currently installed.
iOS 5: Updating your device to iOS 5 or Later
http://support.apple.com/kb/HT4972
How to install iOS 6
http://www.macworld.com/article/2010061/hands-on-with-ios-6-installation.html
iOS: How to update your iPhone, iPad, or iPod touch
http://support.apple.com/kb/HT4623
If you are currently running an iOS lower than 5.0, connect the iPad to the computer, open iTunes. Then select the iPad under the Devices heading on the left, click on the Summary tab and then click on Check for Update.
Tip - If connected to your computer, you may need to disable your firewall and anitvirus software temporarily. Then download and install the iOS update. Be sure and backup your iPad before the iOS update. After you update an iPad (except iPad 1) to iOS 6.x, the next update can be installed via wifi (i.e., not connected to your computer).
Tip 2 - If you're updating via wifi, place your iPad close to your router to preclude getting a corrupted download.
 Cheers, Tom

How to preview audio in real time in the canvas/timeline

Hello there, I am new to Apple and FCP (though am an experienced Avid editor) and I have managed to get acquainted on many things already but the following is driving me nuts:
Whenever I try to play most audio clips (sfx or music in mp3/m4a/caf format) in the timeline I get a beeping warning sound as if it was unrendered. This happens even when only playing 2 tracks of audio and nothing else. the same clip plays absolutely fine in the viewer but not in the timeline/canvas. The only clip I have tried that I don't have this issue with is the sample audio clip downloadable from the FCP help menu.
I have made some research and believe this is due to sample rate of the source material which is not compatible with that of the sequence. In this forum someone has advised to convert all audio files to 48Khz/16bit sample rate to make things easier. Does anyone know how I can do this and/or offer general advice on this issue?
Many thanks, Emi Polito.

The list of audio files that FCP can work with is in the manual.... MP3, m4a's etc aren't supported. You need to transfer them to Aif's or WAV files. MP3 and M4a files are delivery formats, not editing formats. Transfering them in QuickTime or iTunes or even FCP or compressor all work to do this. But it has to be done in order for FCP to work with them.
Jerry

I want to be able to tweak the graphic equalizer in real time while recording - and have this have the audible effect written to the recording. At the moment i have to go into post-production and manually set the graph equalizer at various time points .

i want to be able to tweak the graphic equalizer in real time while recording - and have this have the audible effect written to the recording.
At the moment i have to go into post-production and manually set the graph equalizer at various time points ...

This won't be real-time as you record, but you could tweak the EQ in real-time after the recording thus:
Record what you want to tweak into GB with no effects.
Solo the track and output it into something like Audacity.
Start Audacity recording, then play your track in GB as you make those tweaks. That's what Audacity will record.
Get that file from Audacity and put it into GB, then you'll have that effect.
Sorry if it's complicated, but that's what came to mind. Hope it works.

Odd behavior on web template used to update real-time cubes

Hello all
This is my first time posting on this forum so please excuse any blunders.
I have a situation wherein 2 queries (one built on an aggregate level which is set up on a multiprovider containing a real-time cube and the other built on an aggregate level set up directly on a real-time cube) are being used to update data. For both of these queries, I'm trying to fill in fields such as user, created by, time, date etc. These fields are being filled in the custom class "ZCL_LOC_CR_LINE_ITEM" and all of the settings are correct for the aggregation level/infoproviders.
However, I'm encountering 2 problems. Firstly, for one of these queries on the web template, the fields I want filled are not getting filled in by the exit. In fact, I put hard-code break points in the exit's DERIVE method but the control is not even going in there. But for the other query, the control flows into the user-exit correctly when I hit the return key after populating all of the remaining characteristic fields on the input screen. Secondly, for the first query, the fields are not input-enabled. But I've set up both queires to be more or less similar in the sense that the fields to be populated in the user-exit are not on the query screen etc. I'm stumped and would appreciate some help from the experts out there.
Regards
Sam

Regarding yor first quesiton, if the exit is not being reached, then most likely you have not correctly defined the characteristic relationship in the planning modeler. For it all to work, go to the planning modeler for the infoprovider that you are deriving the characteristics. Ensure that your source characteristics are all contained in the aggregatin level being used by the planning query in question. Also ensure that none of the target characteristics are contained in the aggregation level.
Also, make sure that the "inactive" checkbox is not marked for the individual characteristic relationships.
Note that whether or not the query is on an multiprovider or a real-time sube, the characteristic relationships are always defined directly on the underlying real-time cube.
Regarding the second question, for a query to be input-ready:
-There must be a real-time cube in the query directly (or indirectly via mutliprovider)
-The query must start up in change mode (or be switched into change mode)
-Cell(s) must be defined as input ready either by their settings in the row or column
-Every characteristic in the aggregation level must be fully qualified (including currency,UOM, or any nav attributes used as selections)
- note that when using a mulitiprovider, it is necessary to specify the real-time infocube name in the planning cell/row/col selections
If all of the above are met, try drilling down in the query once it is presented and see if anything is unaccounted for

Shared Variables for Real-TIme Robot Control

I'm really stuck in my efforts to use LV real-time in my hardware control application. I have a 6-axis industrial robot arm that I must control programmatically from my PC. To do this I've developed a dynamic link library of functions for various robot control commands that I can call using Code Interface Nodes in LV (using 8.5). This has worked great, that is, until I tried to port parts of the application to a real-time controller. As it turns out, because the robot control dll is linked with and relies so heavily upon several Windows libraries, it is not compatible with use on a RT target, as verified by the the "DLL Checker" application I downloaded from the NI site. When the robot is not actually executing movements, I am constantly reading/writing analog and digital I/O from various sensors, etc.....
This seemed to suggest that I should simply segregate my robot commands from the I/O activities, using my host PC for the former, and my deterministic RT loop on the target machine for the latter. I set up a Robot Controller Server (RCS) vi running on my host PC that is continuously looking for (in a timed loop) a flag (a boolean) to initiate a robot movement command. Because several parameters are used to specify the robot movement, I created a custom control cluster (which includes the boolean variable) that I then used to make a Network Shared Variable that can be updated by either the RT target or the host PC running the RCS. I chose NOT to use buffering, and FIFO is not available with shared variables based on custom controls.
Here's sequence of events I'd like to accomplish:
1) on my host PC I deploy the RCS, which continuously pools a boolean variable in the control cluster that would indicate the robot should move. The shared variable cluster is initialized in the RBS and the timed loop begins.
2) I deploy the RT vi, which should set the boolean flag in the control cluster, then update the shared variable cluster.
3) an instance of the control cluster node in the RCS should update, thereby initiating a sequence of events in a case structure. (this happens on some occassions, but very few)
4) robot movement commands are executed, after which the boolean in the control cluster is set back to its original value.
5) the RT vi (which is polling in a loop) should see this latest change in the boolean as a loop stop condition and continue with the RT vi execution.
With the robot controller running in a timed loop, it occassionally "sees" and responds to a change of value in members of the shared variable cluster, but most times it does not. Furthermore, when the robot controller vi tries to trigger that the movement has completed by changing a boolean in the control cluster, the RT vi never sees it and does not respond.
1) Bad or inappropriate use of network shared variables?
2) a racing issue?
3) slow network?
4) should I buffer the control cluster?
5) a limitation of a custom control?
6) too many readers/writers?
7) should I change some control cluster nodes to relative, rather than absolute?
8) why can't I "compile" my RT vi into an executable?
Any help would be greatly appreciated. Unfortunately, I'm writing this from home and cannot attach vi files or pictures, but would be happy to do so at work tomorrow. I'm counting on the collective genius in the universe of LV users and veterans to save my bacon.....
David

Hi David,
I'm curious why you decided to build a CIN instead of developing the code in
LabVIEW. Is there some functionality that that LabVIEW couldn't
provide? Can you provide some more information about the LabVIEW
Real-Time target you're using? What type of IO are you using?
It is impossible to get LabVIEW Real-Time performance on a desktop PC running
an OS other than LabVIEW Real-Time. Even running a timed loop in LabVIEW
for Windows won't guarantee a jitter free application. Also, no TCP based
network communication can be deterministic. This means Network Shared
Variables are also not deterministic (they use a TCP for data transport) and I
advise against using them as a means to send time critical control data between
a Windows host and a LabVIEW Real-Time application.
In general, I would architect most LabVIEW-based control applications as
follows:
- Write all control logic and IO operations in LabVIEW Real-Time. The
LabVIEW Real-Time application would accept set points and/or commands from the
'host' (desktop PC). The Real-Time controller should be capable of
running independently or automatically shutting down safely if communication to
the PC is lost.
- Write a front-end user interface in LabVIEW that runs on the desktop
PC. Use Shared Variables with the RT-FIFO option enabled to send new set
points and/or commands to the LabVIEW Real-Time target.
Shared variable buffering and RT-FIFOs can be a little confusing. Granted
not all control applications are the same, but I generally recommend against
using buffering in control applications and in LabVIEW Real-Time applications
recommend using the RT-FIFO option. Here's why: Imagine you have a
Real-Time application with two timed loops. Time-loop 'A' calculates the
time critical control parameters that get written to hardware output in
timed-loop 'B'. Loop 'A' writes the outputs to a RT-FIFO enabled variable
with a RT-FIFO length of 50. Loop 'B' reads the outputs from the shared
variable, but for some reason, if loop 'B' gets behind then the shared variable
RT-FIFO will now contain several extra elements. Unless loop 'b' runs
extra fast to empty the RT-FIFO, loop 'B' will now start outputting values that
it should have output on previous cycles. The actual desired behavior is
that loop 'B' should output the most recent control settings, which means you
should turn off buffering and set the RT-FIFO length to 1.
There is also a clear distinction between buffering and the RT-FIFO
option. The RT-FIFO option is used to add a non-blocking layer between
network communication and time-critical code in LabVIEW Real-Time
applications. It also provides a safe mechanism to share data between two
loops running in a Real-Time application without introducing unnecessary
jitter. Network buffering is a feature that allows a client to receive
data change updates from the server even if the client is reading the variable
slower than the server is writing to it. In the example I presented above
you don't need to enable networking because the shared variable is used
entirely within the Real-Time application. However, it would be
appropriate to send control set points from a Windows PC to the Real-Time
application using network published shared variables with the RT-FIFO option
enabled. If it is critical that the Real-Time application executed all
commands in the sequence they were sent then you could enable an appropriate
buffer. If the control application only needs the latest set point
setting from the Windows host then you can safely disable network buffering
(but you should still enable the RT-FIFO option with a length of 1 element.)
Network buffering is especially good if the writer is 'bursty' and the reading
rate is relatively constant. In the robot application I can imagine buffering
would be useful if you wanted to send a sequence of timed movements to the
Real-Time controller using a cluster of timestamp and set point. In this
case, you may write the sequence values to the variable very quickly, but the
Real-Time controller would read the set points out as it proceeded through the movements.
The following document presents a good overview of shared variable
options: http://zone.ni.com/devzone/cda/tut/p/id/4679
-Nick
LabVIEW R&D
~~

Real-time filter / layer style plugin

Is it possible at all to write a filter plugin that gets applied in real-time, as the user draws on a layer?
I'm thinking of something similar to layer styles (such as drop shadow) that get applied immediately while the user is drawing on a canvas. As far as I can see there is no API to add new filter styles, but maybe there is a workaround to achieve a similar behavior using filters?
I want to create a simple mirror filter/style that mirrors the right-hand side of a layer onto the left-hand side as the user draws on a layer, because this would be very useful for sketching symmetric structures.
Or could this be achieved by using multiple layers? E.g. Layer 2 sitting on top of Layer 1, where the right half of Layer 2 is fully transparent and the left half of Layer 2 contains a mirrored version of Layer 1? But then how could one continuously update Layer 2 while the user is drawing on Layer 1?
Any help appreciated!

You can do that within your plugin, like Liquify does.
But, as explained in the SDK, you cannot write a plugin that does live updates on the document or adds to layer styles.
As for symmetric painting - that is already available in Photoshop Extended using 3D texture mapping.

Questions on working in real time

Hi. Just have a couple of questions about working in real time, actually on the swf.
Firstly, I want to create a sort of drag and drop interface. Is it possible to have one stage act as two seperate stages? By this, I mean is it possible to have the left hand side of my stage hold all the components, they get dragged to the right hand side of the stage and placed anywhere, the user can then click save, and only the right hand side of the stage is saved?
Secondly, I am testing a few things out. What would I do to get a type of free transform on an image on the stage in real time, in the swf? So once the movie is played, the user could then resize any image how they like by dragging a corner of the image..
Cheers for any advise.

What I would like is the movie to display to the user. When they see the movie, it looks like the screen is split in two. On the left hand side of the screen will be the components which can be dragged and dropped. The right hand side of the screen will be a birthday card, whereby the users can drop and drag components to personalise the card. I then want the user to be able to save the card, but a normal save will save the whole screen, including the components side of the screen. All I want is the right hand side of the screen saved, where their card has been created. Would this be done with two movies, and communication between the two. Or is this possible to do on just one stage?

I want to present sketches drawn in real time on the iPad. Suggestions?

Similar Messages

Maybe you are looking for