How profile, follow the execution of a method?

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• How to shorten the execution time of the NXT (TETRIX & MATRIX toolkit) brick

  Hello

  How to shorten the execution time of the NXT brick?

  (TETRIX & MATRIX toolkit, running time)

  The software is 2012 LabVIEW for LEGO MINDSTORMS

  Thank you.

  

  

  Hi 40123157,

  You use the module in an appropriate manner, and there is no simple way to improve the time of loop iteration beyond what you've done. Here are my suggestions:

  (1) the i2c commands take a long time. In your application, it may speed up if you run only move the engine only when the engine speed has changed.

  (2) for this particular example, you do not use the release of the report engine. If this VI does not need to run it can be removed.

  (3) If you need to speed up execution other than that, as a user advanced LabVIEW, you can create a copy of the VI of engines to move and change it as you choose. All you have to to the "DC motors' entry is use cluster to array on the cluster, as shown below. I think you can speed it up by running all the settings before the loop (type sensor and fixed connection configuration), and removing the value of power if you send only the values between-100 and 100.

  (4) drawing on the screen can be slow you down here.

  

• How to calculate the execution time of a SCTL in FPGA VI?

  Hello

  Can someone guide me that how to calculate the execution time of a SCTL for an iteration in the FPGA VI?

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  Hello r,.

  A SCTL will always run in a beat the clock it has been linked to.  So, if you use a 40 MHz clock, this loop will run in 25 ns.  If the code cannot complete in that, or if it requires two graduations of the watch to do the calculation, your code does not compile, then you have the guarantee that this will always be how long it takes this piece of code to run.

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  Hello

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  I hope I have your question! See attached screenshot

• How to follow the port on my router ipstar

  How to follow the port on my router ipstar

  Nothing to do with Windows.

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• How to measure the execution time of a specific to a VI process?

  Hello! My VI has two processes: compression and edge detection image and I'm trying to measure the execution time for the process of detection of edge of my VI, but I don't know how to do. Please give me some ideas on how to do it. Thank you!

  There are several ways that you can do.

  -L' one is using the number of cycles before and after your vi to get time like here: http://digital.ni.com/public.nsf/allkb/6F6B9F4E149C80578625652800784764

  - or use the profiling: https://zone.ni.com/reference/en-XX/help/371361H-01/lvhowto/profiling_vis/

  Edit: If you're open to suggestions:

  -You have not to load the image inside the loop instead, make him outside of the loop.

  - And I see of many IMAQ buffers are not removed properly. You can have everything at once by Images (No) by logging in to Boolean TRUE: http://zone.ni.com/reference/en-XX/help/370281P-01/imaqvision/imaq_dispose/

• How to order the execution of the task

  Guys,
  
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  I want to start one task in front of the other..., no idea how to follow that.
  
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  Suren

  Assume that Task1, task 2, 3 task must be run on the task response > Create User.

  Command must be Task1, 2, 3.

  On the response of the task of the user to create tie your tasks all 3.

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• How to follow the direction of Adobe 'Flash uninstall"to check the Firefox browser for the 'status' of Adobe Flash? --

  I downloaded Adobe uninstall (for Mac, OS x 10.4ff) and he ran to get rid of old shards of Adobe Flash, be very careful to follow the Adobe provided through their Web site. The last thing they ask you to do is to "Check that the uninstall is complete", by restarting your computer and then open your browser and check the status of the Flash Player. BUT it seems not to be a way to check the State of Adobe Flash Player on current versions of browsers Mozilla product.
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  edited by e-mail from the public and robots to spammers

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• I lost the user's profile after the execution of an update of the Microsoft Vista

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  For me it of more my ruined A £499 of the cell value and not good for me.

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  > Can someone please advise me as to what Microsoft s for vista update did and how to fix it please.

  I think THAT the guys at Microsoft would be able to say what did the Vista update
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  Perhaps this will help you resolve the issue.

  If not, then maybe you can manually configure your user profile

• How to know the execution time

  Hello
  
  I'm using Oracle 11 g. I want to know the execution time of a query.
  
  Can someone help me please how to find it.
  
  And. y at - it a tool that compares the performance of the 2 queries?

  user13044793 wrote:
  Hello

  I'm using Oracle 11 g. I want to know the execution time of a query.

  Can someone help me please how to find it.

  In SQL * more:

  SET TIMING ON

  And. y at - it a tool that compares the performance of the 2 queries?

  In SQL * more:

  SET AUTOTRACE ON

  URS

• How to know the execution time of query in sql plus

  Hello
  
  I want to know the duration of execution of query in sql more accompanied by statistics
  
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  Set autotrace on;
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  If the result is 300 lines it scrolls up until all the rows are retrieved and finally gives me the run time in 40 seconds, or 1 minute... (it is after all records scrolls)
  
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  client and database server 11g is g 10
  
  concerning
  REDA

  In sqlplus you can do set autotrace traces to suppress the display of the selected lines.

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• How to follow the line with the vision of the webcam and move along in this

  Hello world

  I have a question that I can't really find a topic about it.

  Currently, I had made my rover robot wireless control using a 3-axis joystick and works perfectly.

  But I want to add some features to the vision on board the rover system.

  I'm doing the webcam to detect a black line on a white background, and then, he moves just independently along the the line black.

  The thing is that I only know abit about installation in a vision... So, if anyone here able to guide me on the way?

  I use filtering color or color matching or model of a match?

  How to make sure that the black line remains in the middle of the vision? (Eg. moving itself at the center of the line within his vision)

  How can I control the engines using the achievements of the vision of the foregoing?

  Hey,.

  Your questions:

  I use filtering color or color matching or model of a match?

  Pattern Matching or Color Pattern Matching would slow down.

  I would use a 1 d Simple edge detection that returns the coordinates and the edge angle.

  How to make sure that the black line remains in the middle of the vision? (Eg. moving itself at the center of the line within his vision)

  You must control your motors that for example the angle is 0 degrees or 90 degrees (depending on your coordinate system) all the time.

  How can I control the engines using the achievements of the vision of the foregoing?

  This robot manual should tell you how to control the motors.

  Hope this helps,

  Christian

• How to capture the execution plan for a query

  Hi all
  
  Can someone help me please to find the command to capture the execution plan for a query.
  
  Execution plan for select * from EMP where < condition >
  
  Is getting executed successfully, but I need to get the appropriate for the same execution plan.
  
  Thank you

  Read the Doc

• How to use the Teststand API DisplayEditNumericFormatDialog method

  Hello

  I have to create a report for Teststand coustom generator plugin using c#. In the Teststand API is a built-in method called 'DisplayEditNumericFormatDialog '.

  http://zone.NI.com/reference/en-XX/help/370052M-01/tsapiref/reftopics/propertyobject_displayeditnume...

  Is there a way to set the value of the sample of the window that appears if the method is called?

  

  I do the following things:

  private void button1_Click (object sender, EventArgs e)
  
          {
  
              mChanged = true;
  
              bool tempbool;
  
  PropertyObject tempobject = mEngine.NewPropertyObject (PropertyValueTypes.PropValType_Number, false, "", 0); creates a temporary PropertyOgject to view the EditNumericFormatWindow
  tempobject. NumericFormat = mConfig.GetValString (P_PluginSpecific_Options_NumericFormat, 0); read the digital format of the plugin options
  
              tempobject. DisplayEditNumericFormatDialog ("Digital Format", out (tempbool), 1); View the EditNimericFormatWindow
  If (tempobject. NumericFormat == "") mConfig.SetValString (P_PluginSpecific_Options_NumericFormat, 0, "%$.13g");
  
              else mConfig.SetValString (P_PluginSpecific_Options_NumericFormat, 0, tempobject.) NumericFormat);
  MessageBox.Show (tempobject. NumericFormat.ToString ());
  
          }

  Thanks in advance

  Hello f4bo,

  attached is a sequence that shows how this can be done.

  Locals.Local = RunState.Engine.NewPropertyObject (PropValType_Number, False, "", 0x1),.
  Locals.Local.AsPropertyObject.NumericFormat = "%b"
  Locals.Local.AsPropertyObject.SetValNumber ("", 0, 20),.
  Locals.Local.AsPropertyObject.DisplayEditNumericFormatDialog ("false title", False, 0)

• Picture editor; How to follow the touch

  Hello

  first of all, I chose to develop a BlackBerry 10 app for my Masters project and needed a little help. I hope you guys can help.

  Requirement:

  I shud be able to paint on a picture to select the area. so being able to blur the portion of the image. for example, the background and the blur out.

  can someone help me please how I can achieve this?

  Thank you

  Copy the following code:

          screen_context_t screen_ctx;
      screen_pixmap_t screen_pix;
      screen_buffer_t screen_buf;
      int size[2] = { 768, 1280 };
      int val;
      char *pointer = NULL;
      int stride;
      /* Create the privileged context so that the display properties can be accessed. */
      screen_create_context(&screen_ctx, SCREEN_APPLICATION_CONTEXT);
      /* Create pixmap for the screen shot. */
      screen_create_pixmap(&screen_pix, screen_ctx);
      /* Set usage flag. */
      val = SCREEN_USAGE_READ | SCREEN_USAGE_NATIVE;
      screen_set_pixmap_property_iv(screen_pix, SCREEN_PROPERTY_USAGE, &val);
      /* Set format. */
      val = SCREEN_FORMAT_RGBA8888;
      screen_set_pixmap_property_iv(screen_pix, SCREEN_PROPERTY_FORMAT, &val);
      /* Set the pixmap buffer size. */
      screen_set_pixmap_property_iv(screen_pix, SCREEN_PROPERTY_BUFFER_SIZE, size);
      /* Create the pixmap buffer and get a handle to the buffer. */
      screen_create_pixmap_buffer(screen_pix);
      screen_get_pixmap_property_pv(screen_pix, SCREEN_PROPERTY_RENDER_BUFFERS,
                                                  (void **)&screen_buf);
      /* Get the pointer to the buffer. */
      screen_get_buffer_property_pv(screen_buf, SCREEN_PROPERTY_POINTER, (void**)&pointer);
      /* Get the stride. */
      screen_get_buffer_property_iv(screen_buf, SCREEN_PROPERTY_STRIDE, &stride);
          angleF = 0.0;
          bps_initialize();
          if (sensor_is_supported(SENSOR_TYPE_GRAVITY))
      {
          sensor_request_events(SENSOR_TYPE_GRAVITY);
      }
      int nbytes;
      Window *winId = Application::instance()->mainWindow();
      /* Take the display screen shot. */
      screen_read_window(winId->handle(), screen_buf, 0, NULL ,0);
  

  creates a buffer of your screen. You can get touch places of activities of the mobile finger (the number of pixels), add them to a list or whatever, then obtain a general rgb for the region value as follows:

  screen_get_buffer_property_pv(screen_buf, SCREEN_PROPERTY_POINTER, (void **) &ptr);
  
                  for (int i = 0; i < size[1]; i++, ptr += stride) {
                          for (int j = 0; j < size[0]; j++) {
                              // do your pixel reading here: r = ptr[j*4], g=ptr[j*4+1], b=ptr[j*4+2], alpha = ptr[j*4+3]
                              }
                          }
                  }
  

  Note that the code above is for an entire screen, so you will have to change accordingly. Once you have a general RGB value, divide by the total number of pixels that you went through to get a certain RGB (or choose another method that might be simpler). Restart the loop to repaitn pixels of same with the same color. BAM! you will have a uniform colour where you pressed.