Acquisition and saving(for Annette Perez)

Hi Annette,
I?m luiart.
First of all thanks for help.I?ve read your answer and I?d like to know something more.
I?m not familiar with references; as you told me thanks to a reference value I could have a marker to point a common istant in wich I have acquired those values.Is what I said right?
How can I do it?
Are there examples about it?
Thanks luiart.

Hello Luiart,
Well, I did not find any examples that do exactly what you are trying to do, but I did find two Application Notes that give a pretty clear explanation on how to do this.
Here are the links:
Control References: Overview
Using LabView to create Multithreaded DAQ Applications
Keep up with the great work!

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Acquisition and saving(for Serenity)

Hi Serenity I?m luiart.
I ?ve read your answer and I think what you told me can help me very much.
Now I?d like to ask you something to understand better:
1. Wich is the function that let me copy datas to another VI?
2. Has the memory VI a buffer in wich it must hold datas?
3. I?m working in multithreading; must the VI called work in multithreading?
4. Are there examples abou it?
Thanks, luiart.

Luiart,
I think this forum is for general questions towards the LV-community, not some selected person. But I will try to answer you.
1) You copy data by connecting the data you want to copy to an input terminal of the vi you want to copy the data to.
2) "The memory vi" is just a vi you can make for your use. It uses a shift-register to hold the data (like a 2D array). The vi has different states.
In one state you can write (add) a new data-point to the array.
In another state you can read-out data from this array (It could be all, but you could also make a selection).
3) It is wise to give this vi a thread that is not time/processor intensive.
4) I will send this later.

Was told that on a cruise ship you can bypass the ship and connect for $35 per month?

I was told that you can connect on a cruise ship for $35 per month. Not using the ship connection or incurring any fees from the ship. True??

goldcanyon2 wrote:
I was told that you can connect on a cruise ship for $35 per month. Not using the ship connection or incurring any fees from the ship. True??
What other connection are you thinking of using out in the middle of the ocean somewhere? Even if there were another ship somewhere within sight, it would still be too far to use it's connection. Sorry, you have no other choices but to use the ship connection and whatever fees they set. Now, bleach has a good suggestion, a cruise director or similar might be able to help you locate a reasonable plan for a connection.
Good luck.

Slice and 'saving for web and devices' not saving all images in selected area

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James

Thanks for your reply. Yes, my Photoshop CS5 is updated to 12.1. I'm running OSX 10.5.8 and have tried viewing in Safari, Firefox, and Chrome with no improved success.
I have been reading these forums for about 3 hours trying to find the answer to this question but am still at a loss. I have found one article here:
http://stackoverflow.com/questions/7974006/overlapping-image-in-photoshop-splice-how-to-fl oat-with-css
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Wireless signal acquisition and saving signal in text format simultaneously for 5 mins

Hi,
I am acquiring ECG signal wirelessly and displaying it in in waveform chart. And simultaneously i need to save it in Text format for 5 mins. The problem i am facing is that for saving the signal i am using Write to Measurement File which saves the file in text format..... but while saving the plotting speed decreases.
i am very new to labview.. so plz can any one tell me whether i am missing any thing in it... plz help.....

Why do people always post pictures of their VIs rather than the VIs themselves or at least Snippets? We can't tell from the picture what Version of LabVIEW you are using (so if we post code, you might not be able to open it), and we can't "play with" your code and try it out without, ourselves, by hand, trying to recreate it from your (sometimes very tiny) diagram. Please Help Us to Help You!
Here's help anyway to get you started with the Producer/Consumer Design Pattern.
Open LabVIEW.
Click "File", choose "New ..." (not New VI), and choose (from the templates) Producer/Consumer Design Pattern (Data).
Study the Template and adapt it to your problem.
The Producer would be anything that Generates data. Once you have the data, you put it on the Queue and send it to the Consumer for all the rest of the processing. The idea is that the Producer has an inherent timing that it has to meet, otherwise you lose data points. The Consumer, on the other hand, just needs to "more or less" keep up (actually, the Queue can/will expand, so if the amount of data isn't megabytes, the Consumer can really be quite slow, though you usually want the Consumer, on average, to be at least as fast as the Producer).
Bob Schor

Two Simultaneous USB Camera Image Acquisition and Saving

Hello everyone,
Recently my friends and I have begun a project which requires the simultaneous acquisition of images from two independent USB cameras. Throughout our project research we have encountered many difficulties. The major problem appears to be how to successfully interface two USB cameras and properly save the image to a median for further processing down the road.
Our first attempted at this was with the USB IMAQ drivers. Unfortunately, to our surprise, it does not support two independent and simultaneous camera acquisitions. To combat this problem we implemented a crude loop of closing a camera reference, then opening the other, acquiring an image, then closing, etc... This did provide us with functionality but was very inefficient, resulting insufficient acquisition speeds.
Afterwards we began looking at other ways of capturing and writing the image, which are listed below.
Various Acquisition Interfaces / Strategies
USB IMAQ Driver - USB interfacing kit available for public download, (not officially supported by NI) zone.ni.com/devzone/cda/epd/p/id/5030
Status - Abandoned because of the lack of dual web camera support
Avicap32.dll - Windows 32 DLL responsible for all web camera communication, and other media devices.
Status - Currently acquired two streams of video on the front panel but with no way of saving the images
Directx - The core Windows technology that drives high-speed multimedia on a PC.
Status - Currently researching.
.NET - Microsoft .NET framework, possibly a valid interface to a video stream.
Status - No development until further progress.
We are still currently developing the Avicap32.dll code but the major bottleneck is the learning curve on the property nodes, library calling nodes, .NET and other references. So far it’s been a tedious effort of trying to understand example code and piece them together. As a former programmer of C I know this is not the proper way of writing code web I can’t seem to grasp how these functions work. (Property nodes, library calling nodes, .NET and other references). Learning this may allow us the knowledge to code a proper system. Does anyone know any good tutorials or learning material for such functions? So far my research has come up empty handed.
We are currently working with these interfaces and other reference examples on the NI site. Unfortunately we cannot seem to properly integrate the code for our system. Does anyone know if this setup is even possible? Also, if anyone has any experience with similar systems and can offer advice, code snippets, or any other assistance it would be greatly appreciated.
Our current projects will be posted below if you have any suggestions. (More will be added when I get to my desktop tomorrow)
Two Camera Avicap32.dll - Currently stuck on how to save the image, various tweaks have gotten us stuck at this point ( will have another Avicap32.dll implementation posted tomorrow)
USB Capture Example - This USB capture VI was an example that immediate had problems. We used it as a baseline for crude open-close camera image grabbing system. (Will also be posted tomorrow)
Thanks for any help, it's much appreciated.
Taylor S. Amarel
Thanks,
Taylor S. Amarel
Learning is living.
Co-Founder and CEO of http://3dprintingmodel.com/
"If we did all the things we are capable of, we would literally astound ourselves."
-Thomas Edison
Attachments:
Two Camera Avicap32.dll.zip ‏84 KB
USB Capture Example.zip ‏17 KB

Thanks for the information but that's not exactly what I'm looking for. I've been to that URL and read the information before. I don't mean to disparage you help but I'm looking for ways that I can successfully implement a functional system, not information on an unfunctional method. Maybe I was unclear before, I'm looking for any advice, knowledge or help on how to make this system properly work.
Thanks, have a great day.
Taylor S. Amarel
Learning is living.
Co-Founder and CEO of http://3dprintingmodel.com/
"If we did all the things we are capable of, we would literally astound ourselves."
-Thomas Edison

Multiple channels acquisition and Number of samples per channel

Hi,
I'm a new labview user and I need some help in trasposing an old traditional NI-DAQ acquisition software in a NI-DAQ-mx one.
I followed the tutorial (#4342) but I found a problem with Analogue 2D DBL Multiple Channels Multiple Samples DAQmx Read Vi.
I'm trying to acquire 8 voltage signals from a NI-USB-6341 device. When the Number Of Samples Per Channel I set is below the number of channels (8), the software acquires only a number of channels equal to the number of samples per channel I set.
Is that a normal behaviour?
Thank you
Daniele

This is my code. The problem is the same with or without the code for the scan backlog indexing.
Tomorrow I will try with the code from the example.
Thank you
Daniele
Attachments:
acq code.jpg ‏119 KB

I w'd like to know if LabVIEW 6.0 Application Builder includes the daqdrv (for data acquisition) and serpdrv (for serial communication) support files by default.

Building an application to communicate to a device by serial port

Hi velou
The LabVIEW 6i Application Builder no longer requires daqdrv. Regardless of your Application Builder and LabVIEW version, you must always install the appropriate driver files on the target machine. For example, if your application communicates with a DAQ board and a GPIB board, then you must install NI-DAQ and NI-488.2 on your target machine. If you are using the VISA VI's for serial communication, than you have to install NI-VISA . If you are using the "old" serial VI's, than you have to include serpdrv separately.
Luca P.
Regards,
Luca

How differs soft proofing in View - Proof Colors and Save for Web - Preview?

Hi, I'm currently confused with one inconsistency. My working space is Adobe RGB and I use calibrated monitor. After I finish my work on image I go to View -> Proof Colors -> Internet Standard RGB. Image looks terribly with the overall violet/purple hue. Then I open Save for Web dialogue, I check Convert to RGB and from Preview options I select again Internet Standard RGB. Now the previewed image looks as expected. The same results I get if I manually convert image to sRGB before soft proofing and saving for web. So... what's the difference between preview in Proof Colours and in Save for Web? Thank you for your opinions.

Hi 21, thank you for your input. All what you say makes perfect sense, it is exactly how it should work and how I expected it works. My problem was, that while testing this theory in practice, I have come to different results. I expected, that if I stick to the theory (meaning keeping in mind all rules you perfectly described) I should get the same result in both soft proof and save for web preview. But... it was not the case. Save for web preview offered expected results while soft proof was completely out of any assumptions and colours were totally over-saturated with violet/purple hue. Also, Edit -> Assign Profile -> sRGB gave another result then Soft Proof -> Custom -> assign sRGB (preserve numbers), but the same as save for web preview. What troubled me was why this is so.
Today I've made tests on hardware calibrated monitor and... everything works exactly as you describe and as I expected.
Then I went back to another monitor which is software calibrated (both monitors are calibrated with X-Rite i1 Display Pro). And again... I received strange results described above. So I did the last thing I thought and disabled colour calibration on that monitor. And suddenly... both soft proof and save for web preview gave the same result.
Probable conclusion: soft proof and save for web preview (together with Edit -> Assign Profile) are programmed to use different algorithm which is evident on standard gamut monitors with software calibration. Question can be closed.
Gene and 21, thank you for your effort.

One db and user for multiple tablespaces or schemas per server?

Hello again.
I installed Oracle 11g on server_1 and created one database db_1.
Using Enterprise Manager, I did the following:
Created a tablespace myname_1.
Created a user myname_1.
Logged in as myname_1 and created a table into the default tablespace myname_1.
When creating this table, the schema field defaulted to myname_1.
Created another tablespace myname_2.
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When I try to create a new table for tablespace myname_2, I get an error:
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My goal is to setup my server with one database each and one user each per database.
Then, I think I want to create multiple tablespaces and organize objects per tablespace.
Or should it be per schema?
Eventually each tablespace will be moved to a separate server.
Any comments and suggestions are greatly appreciated.
Thank you for helping.

Hello,
This error means user MYNAME_2 doesn't exists and you have to create one.
Example 1:
CREATE USER MYNAME_2
IDENTIFIED BY "my_password"
DEFAULT TABLESPACE MYNAME_1
TEMPORARY TABLESPACE TEMP
PROFILE DEFAULT
ACCOUNT UNLOCK;
-- 4 Roles for KLONDIKE
GRANT RESOURCE TO MYNAME_2; ---> This privs give unlimited quota on all the tablespaces
GRANT CONNECT TO MYNAME_2;
ALTER USER MYNAME_2 DEFAULT ROLE NONE;
Then create your table (you were missing "AS" )
create table myname_2.mytable_1 as
select * from source_table@dblink_2;Example 2: If you want to create table mytable_1 in tablespace myname_2 then you have to create tablespace myname_2 first. To create table in different tablespace than user default tablespace
create table mytable_1 tablespace myname_2 as select * from source_table@dblink;Regards
OrionNet

Firefox had saved my login name and password for a site, when I changed the password, FF won't ask to save/update it so I have to enter it manually now. How do I get it to prompt me in FF7.01?

Using FF7.01 on a HP Pavilion dv6775us laptop running Vista Home (updated continuously)
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I then exited from FF and relaunched it and again logged into the site in question. I was not prompted to save the username or password.
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Thank you for your reply.
My problem isn't removing my log-in name and password for a site.
The problem is I already had the log-in name and password saved by FF, but I was required by the site to change the password. FF did not recognize that it had changed and refuses to prompt me to save the new password.
After several attempts to force the prompt, I deleted the site from the Saved Password list, hoping that the next time I entered my log-in name and password on that site FF would ask if I wanted to save both. That did not happen even after exiting FF and relaunching it.
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Regards.

I am batch processing in PS 2014 (watermark and saving as jpeg from ps file). I get the message for some but not all 'this file needs to be saved as a copy with this option'. And then I have to save it manually. Does anyone know why this happens? (It is j

I am batch processing in PS 2014 (watermark and saving as jpeg from ps file). I get the message for some but not all 'this file needs to be saved as a copy with this option'. And then I have to save it manually. Does anyone know why this happens? (It is just a plain photoshop file, a watermark is added, then save as jpeg - the jpeg is saved to a different folder than the original photoshop file.) It happens for about 10 of 30/40 files approximately . Thank you, Kathryn

I believe I have figured it out - I need to flatten the image, even though there are no layers except for layer 0, first.

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I'm using CS3 and when I "Save As" or "Save For Web" to a format like .jpg for example, the resulting .jpg is reduced in size considerably.
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Jason

Jeffrey, I checked the UI dialog and it's set to 'original'.
Marian, this problem occurs whether I email the file or not.
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PSD files saved for web and devices show up as broken when opened Dreamweaver. How can this be fixed?

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You can also try out Project Parfait. It's a new experiment from Adobe that’s currently online and free to try out and use.
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Photoshop crashes when saving for web and devices

When hitting saving for web and devices, Photoshop starts to render images but before it's done, it crashes. I get an error-popup with no text and the screen where normally the animation is shown is red. Then Windows comes with a crash report and I can only quit Photoshop.
I have an animation of over 150 frames, but just some black and white lines, no color.
I'm using Photoshop CS 5.5 on Win7.
I tried deleting the preferences in AppData/Roaming etc, but no result, still crashes.
My Photoshop is also updated to the latest version.
Help?

Ok, here's a crash report from Windows (not sure which I should post so just gonna post them both..)
Naam van toepassing met fout: Photoshop.exe, versie: 12.1.0.0, tijdstempel: 0x4d90cf71
Naam van module met fout: Save for Web.8BE, versie: 12.0.0.1, tijdstempel: 0x4d90d758
Uitzonderingscode: 0xc0000005
Foutoffset: 0x002d2e96
Id van proces met fout: 0x1f4c
Starttijd van toepassing met fout: 0x01cdb1fca2dd8dcb
Pad naar toepassing met fout: C:\Program Files\Adobe\Adobe Photoshop CS5.1\Photoshop.exe
Pad naar module met fout: C:\Program Files\Adobe\Adobe Photoshop CS5.1\Plug-ins\Import-Export\Save for Web.8BE
Rapport-id: fa9784f8-1def-11e2-a242-00238bb26d31
Photoshop.exe
12.1.0.0
4d90cf71
Save for Web.8BE
12.0.0.1
4d90d758
c0000005
002d2e96
1f4c
01cdb1fca2dd8dcb
C:\Program Files\Adobe\Adobe Photoshop CS5.1\Photoshop.exe
C:\Program Files\Adobe\Adobe Photoshop CS5.1\Plug-ins\Import-Export\Save for Web.8BE
fa9784f8-1def-11e2-a242-00238bb26d31
Where can I find a Photoshop Crash Report?

Acquisition and saving(for Annette Perez)

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