call Subvi producer/consumer using vi main to gain the image capture

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  How can I put pictures outside the window of Photoshop elements 14 work, so that I'm not obliged to work within the program window, but use my screen completely for the image?

  dannyb76251437 wrote:

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• can't see the image captured using the camera

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• What is the fastest method producer consumer. Queue, RT-FIFO, event

  Hi all

  Another question completed for the pro:

  I recently inherited the labview code that uses RT-FIFO for the transfer mechanism in the architecture of the producer consumer.

  The code was first written in 3-4 years and is currently in LV8.6. It is possible that the reasons for the architectural decision no longer exists.

  I am qualified using a producer consumer queued architecture,

  I understand the RT-FIFO Architecture.

  I started using an architecture based on events from the user.

  (I have attached samples of each)

  I also see the existence of a priority queue

  Each method has its own capabilities and gaps, that hand, nobody knows the relative performance of each method.

  (Assuming that the only process)

  I would expect RT-FIFO to be faster, there seems to be a version of low characteristic of a standard queue.

  What is the perfornace hit to use a coding user-friendly queue more

  RT-FIFO description talks about commications between the time-critical and lower priority threads.

  Until today, I thought that the queues had the same capacity.

  

  I've included an event method that I commonly use for review by peers and help from other users...

  It allows to:

  1. several producers with different types of data

  2. process 37 production order.

  3 allows asynchronous verification of functional notifiers such as stop, start and abort.

  4. in a system not real-time, it can include interactions of façade.

  What I do not understand on this subject, that's what are overhead or thread priority changes that may occur using this architecture (it solves a lot of problems for me).

  Thanks in advance,

  Hi Timmar,

  Here's a KB article on some frequently asked questions about the RT FIFO: http://digital.ni.com/public.nsf/allkb/7AE7075AF1B2C58486256AED006A029F?OpenDocument

  The more relevant question is #4, I posted below.

  What is the difference between RT FIFO and queues? 
  Functionally, RT FIFO and LabVIEW queues are two pads of first in, first out. However, here are the main differences between them:

  • RT FIFOs run deterministically in LabVIEW and evanescent code queues are not. This comes from the fact that queues use block calls during read/write to the resource shared, while RT FIFOs use non-blocking calls.
  • RT FIFO are fixed size while queues develop when items are added to them.
  • RT FIFOs will execute the code, even if there are input errors. They can (and will) produce new errors and spread the existing errors.
  • Queues work with any type of data, while the data types that can be used with RT FIFOs are limited. Generally any type of data involving allocations of extra memory can be used with RT FIFOs to preserve determinism.

  Let us know if you have persistent questions!

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• export to spreadsheet - data 2 channels appear in alternation with loop of producer/consumer

  Hello

  I'm having trouble with the function "Export the waveform to the worksheet" - but it is not clear to me if the problem is with how I use the export feature or if I am wrong concatenating two waveforms of different modules of the series prior to export, or if my queue is wired incorrectly for producer-consumer loops.

  I use a hunts SMU-1073 with SMU-6361 and 4330 modules (tension and strain). I tried to change the example of the "entry analog cross synch" for use with a structure of producer-consumer (see VI below).

  The output of the worksheet contains a large part of the data in the string tension, followed by a smaller piece of data (with timestamp) strain, after which the alternate output data between data of tension and strain.

  Can anyone suggest where I could go wrong, or how I could solve this?

  Attachments do not work, so I'll try to post in an empty message directly after this post.

  Thank you

  Claire.

  That's what I thought.

  A number of wire.  -1 gives all the samples available in the buffer (which can be zero for some reason any).  A number will expect that there are many examples.  If the two readings can wait until they have both the amount of data requested.  This way, they will also have the same number of samples and be better aligned in the text file.

  Your loop will continue to run until you press stop or get an error.

• Buffer could replace the queue in the design of producer/consumer model

  Hello

  I have a question to which the task of buffer to store the data and the queue is also of the same thing so we could use the inplace queue buffer in a design of producer/consumer model.

  No, these examples of buffer not almost equal to a queue, and never "replaces" queue at the producer/consumer.

  The advantage the most important of the queues for the producers/consumers (which none of the other mechanics buffer sharing), it is that it works activities to warn the reader that the data is available. So if you would simply replace the queue by mechanics of tampon too developed that you have attached to your last post, you will lose a large part of the object using producer/consumer.

  Thus, to compare the two mechanics:

  -Tail works activities, while the example of the buffer is not.

  -Tail must allocate memory during execution if several items are written in that corresponding queue. This also applies to the buffer (must be resized).

  -Given that the buffer is actually simply a table with overhead, memory management becomes slow and messy with the increase in fragmentation of memory. Queues to play much better here (but have their limitations, there also).

  -Overload of the buffer (the table manipulation) must be implemented manually. The queue functions encapsulate all the necessary features that you will need. So the queues have a simple API, while the buffer is not.

  -Given that the buffer is simply a table, you will have a hard time sharing the content in two parallel running loops. You will need to implement an additional charge using data value references to manage the buffer or lose a lot of memory using mechanics as variables. Lose the memory, you will probably encounter racing conditions so don't think not even on this subject.

  This led to four '+' for the queue and only a single point where 'buffer' is equal to the queue.

  Hopefully, this clears things up a bit.

  Norbert

• First try the producer consumer Architecture: continuous play and dynamically update settings.

  Hello

  I am currently working with two instruments; an Agilent E3646A and a NI 6212 BNC. My goal is to have the 6212 continuously take measures according to predefined parameters while the E3646A parameters can be continuously updated. This combination simple instrument aims to help me learn the manual architecture; continuous measurement, output dynamic controls and instruments more will be added in the future.

  I've already posted on a similar, but more complicated configuration (http://forums.ni.com/t5/Instrument-Control-GPIB-Serial/Split-second-lag-when-controlling-two-instrum... and was advised to try the producer consumer Architecture.) I found the documentation on the website (http://www.ni.com/white-paper/3023/en/, https://decibel.ni.com/content/docs/DOC-2431), searched the forums and built my own VI. While my first attempt at a producer consumer Architecture has solved some of the problems I had when I posted on the subject, however, new questions have been raised regarding the reading and adoption of the VI.

  I am currently able to run the VI and update the settings on the device. Previously, I'd get a freeze while the instrument has been updated and could not switch settings until it was done. This has been resolved, although that reading updates only when a parameter has been updated, although it is outside the structure of the event. In addition, the Stop button does not in any context. I also got occasional mistakes on the part of Deqeue, but the major part of the sentence is error-200279 'A tried to read samples that are no longer available' to DAQmx Read. I realize that there is a problem in my loop of producer but have not been able to find a way to solve it.

  This is my first attempt at a producer consumer Architecture and already I can see that it is a powerful tool. I read as much as I could and looked at examples, but should have some problems at the beginning. Would be very grateful of any advice so I can take full advantage of the architecture.

  Hope to hear from you,

  Yusif Nurizade

  You're going to overflow this buffer, unless the events are generated faster than "sample rate/number of samples.   Period.  Nothing could be simpler.

  You don't need a local to stop your curls.

  Try something like this attachment.  I simply moved the structure of the event in its own loop dedicated since it had nothing to do with acquiring data at all.

  Data acquisition loop stops very well when you destroy the task and destrying the stops of power queue (sending the default values of the queue for the power control) for EXAMPLE, to ADD a group of setting 'Safe shutdown' to a 'package' and it wire to the Center terminal (Prototype).

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• Using Locator to Lob in the Collections

  Hello
  I'm using Oracle 11 g R2 11.2.0.2.0.
  
  I use this procedure to get the images in the Collection, then LOB locator:
  

  DECLARE
  TYPE IMAGE_T IS TABLE OF IMAGE%ROWTYPE INDEX BY PLS_INTEGER;
  t_img IMAGE_T;
  
  TYPE BLOB_T IS TABLE OF IMAGE.CONTENT%TYPE INDEX BY PLS_INTEGER;
  l_thumb    BLOB_T;
      
  ---
   
   BEGIN
   -- Get few images from IMAGE Table :
  
  SELECT * BULK COLLECT INTO t_img from IMAGE  FOR UPDATE;
  
   for i in t_img.first .. t_img.last
  loop
  dbms_lob.createtemporary (l_thumb (i), true, dbms_lob.call) ;
  dbms_output.put_line (i);
  dbms_lob.freetemporary (l_thumb(i));
   END LOOP ;
  
   
   end;
   

  But I get

  ORA-01403: no data found

  .
  This to ensure that there is data in the table

  SELECT * FROM IMAGE

  [url https://lh6.googleusercontent.com/-0mMOXFfZ8pU/UawwBWIM3pI/AAAAAAAAAB0/lDAaOg5w9j8/s682/table.PNG] please click here to see the output
  ---------------------------------
  
  Can you please help?
  
  It is the Table of the IMAGE:
  

  CREATE TABLE  "IMAGE" 
     (     "ID" NUMBER, 
       "UNIT_ID" NUMBER, 
       "CONTENT" BLOB, 
       "FILENAME" VARCHAR2(250), 
       "FLAG" VARCHAR2(1) DEFAULT 'O', 
       "MIMETYPE" VARCHAR2(100), 
       "FILESIZE" VARCHAR2(10), 
        PRIMARY KEY ("ID") ENABLE
     ) ;
   
  
  CREATE UNIQUE INDEX  "SYS_IL0000102335C00003$$" ON  "IMAGE" (
    ;
   
  
  CREATE OR REPLACE TRIGGER  "IMG_TRG" 
                before insert on IMAGE
                for each row
                begin
                    if :new.ID is null then
                        select dept_seq.nextval into :new.ID from dual;
                   end if;
                end;
  /

  Kind regards
  Fateh
  
  Published by: Fateh on 2 June 2013 22:53

  Hello

  Your clause to COLLECT BULK is totally OK - but you're in bulk in table 't_img '. Your loop so try

  to pass from the first to the last item in this collection.

  But in the loop, you try to make a temporary lob for the item 'i - th' in the table l_thumb (!) - and "l_thumb" is unintialized;

  as a result, you get the 1403, ORA... If a solution might work like this...

  DECLARE
  TYPE IMAGE_T IS TABLE OF THE TAB_IMAGE_PROCESSING % ROWTYPE INDEX BY PLS_INTEGER;

  t_img IMAGE_T;

  TYPE BLOB_T IS TABLE OF THE TAB_IMAGE_PROCESSING. INDEX OF TYPE IMAGE % BY PLS_INTEGER;

  l_thumb BLOB_T;

  BEGIN

  SELECT * COLLECT in BULK IN the t_img of TAB_IMAGE_PROCESSING for the UPDATE.

  for me in t_img.first... loop of t_img. Last

  l_thumb (i): = empty_blob();

  DBMS_LOB.CREATETEMPORARY (l_thumb (i), true, dbms_lob.call);

  dbms_output.put_line (i);

  DBMS_LOB.freeTemporary (l_thumb (i));

  END LOOP;

  end;

  /

  This help...?

  Carsten-

• iPhone 5 s 10.0.2 update cannot use image capture

  I have a mac pro running 10.6.8. Since I upgraded my iphone 5s today 10.0.2, I am unable to use Image Capture on my mac to transfer your photos, iphoto does not work either. I get a message on my phone to the computer I chose to 'trust', then I get an error message in the Image Capture in saying that I have to enter a password on my phone but the password is not displayed at the time.

  Hello pwexford,

  Thank you for using communities of Apple Support. It is my understanding that you were unable to use transfer pictures from your iPhone to the Image Capture. It is very important to save valuable images of your phone. I want to make sure that you are able to transfer this content correctly.

  His expected behavior to be prompted for a password if the phone is locked. Please, try the following steps.

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• How do I use image capture to transfer videos from iPhone 5 on iMac

  How to use Image Capture to transfer videos from iPhone 5 on IMac

  Connect the phone to your Mac using the cable and launch the Image Capture. You should see the phone on the left under devices. Click on the phone and should allow you to import the videos.