single-precision changes constant value

Similar Questions

• How to change the constant value for the property node "Disabled"?

  Hi all

  I enclose one vi example of what I'm willing to do. It happens during the event for "left selectorrogrammed 1: changing values.»

  Basically, I created a property to a Boolean LED control node. Once clicked, I'm eager to turn it off so that the user cannot change the value (I have a reset all button for use on that).

  I created the node property for this control for disabled people.  When I'm in the block diagram, I change to write mode.

  I rt clicked on it and said: ' create constant ", he does.  However, the constant comes each time as "Enabled". I tried clicking on this constant and looking through all of that property, but I can't find a way to scroll the values or set the value of this constant to "Enabled" to "disabled."

  I see where you can change the elements of this constant... but I guess there is a way to switch this constant to the value you want... any suggestions?

  Thanks in advance,

  Cayenne

  To change a constant value, your cursor must be in the mode 'finger '.

  You can select this option in holding down the SHIFT key and right-click on the diagram - then select the finger.

  Another way is to put the automatic selection of tools:

  Tools > Options > environment > lock automatic selection of tools

  With this option, LabVIEW will choose the tools for you.

  Play with him a bit to see how it works.

  Steve

• Convert the hexadecimal string of Little Endian floating-point single precision

  I made a lot of tinkering and research, but despite all the very similar examples, I found, I think that I am limited by my lack of knowledge in programming. I gives me values such as 0000c 641 I need to convert to 41C60000 who must convert single precision IEEE754 to 24.75 as a standard 32-bit float. I saw very similar examples with boxing and unboxing conversions, but I simply can't understand it. Thank you.

  OK, so if you have actual letters coming, there are a few ways that you can do. You can basically change the string in order to get in order waiting for LabVIEW. Otherwise, you can do the same using data manipulation functions:

  

• Writing to spread sheets with more than single precision

  Hello world

  Care im registration data using writing to propagate VI Labview 8.

  It records in single precision, which is a problem for me because I need a bigger

  precision.

  Are there ways to get around this problem?

  Thank you

  The entry in the File.vi worksheet has an entry for the Format string. The default value is "%.3f' that will give you less than single-precision.  Change to what you need.  Read the detailed help for more information about Format strings.

  Lynn

• Is it possible to change the values of particular #define of the various controls in CVI.

  In my application, I have different panels to file single .uir. When I save the .uir file, I get the same values of #define for different controls in different panels. For this reason, I am not able to use these #defines block switch. Is it possible to change the values of #define according to my condition.

  Hi, a little more Wolfgang post. It is the combination of the Panel to manage and control the unique ID: as you know, you can load the same panel more than once, so even if you recover the full chain of PANEL_CONTROL you have duplication. items that exactly identifies a particular control in a particular group are the combination control panel manage AND panel_control ID.

  On the one hand which guarantees more flexibility to your application, you can design only a few panels and reuse them whenever you want, even having some of them loded several times in the same instant. On the other hand, as you have discovered, there is the possibility (Finally, almost certain) duplicated in your app ID.

  To resolve the problem of duplicated IDS you can act in two ways:

  1. If you know that no Panel is never loaded several timer in your application, you can retrieve the name of constant of Panel with GetPanelAttribute (panelHandle, ATTR_CONSTANT_NAME, string); and to distinguish between the name of constant, then switch between control ID

  2. If you happen to have duplicate panels you will need to store each panelHandles in the non-volatile variables, switch between them and then switch between the control ID

  An alternative might be to use Panel callbackData attribute and assign a significant value during the loading of the Panel, other callbackData finally from a control ID. Something like this:

  Loading panels:

  panelHandle = LoadPanel (0, "myfile.uir", PANEL1);

  SetPanelAttribute (panelHandle, ATTR_CALLBACK_DATA, (void *) 1);   Assign different callbackData in each instance

  During the failover between controls:

  void * cbkd;

  GetPanelAttribute (panelHandle, ATTR_CALLBACK_DATA, &cbkd);)
  Switch (cbkd (int)) {}
  case 1: / / elements of the PANEL1
  switch (command) {}
  case PANEL1_NUMERIC:

  your code here
  break;
  case PANEL1_STRING:
  your code here
  break;
  }
  break;
  case 2:
  // .....
  break;
  }

  One final note: it seems to me that all this is necessary in a very limited situation, where you have the same callback called on various panels/controls. Whenever the reminder is unique to a specific panel or controls on a single panel you don't need to work that way.

• Will I lose data conversion to double precision single-precision float?

  Before you say Yes...

  I use a crio unit in scan mode interface. Which returns the mode of scanning values in floating point double precision. Apparently I'm supposed to be able to choose between double precision fixed-point ("not calibrated") and ("calibrated") floating point data, but this feature seems to be exclusive to the fpga interface and is not available with the scan engine. The two data types are 64 bits per value, when it comes to the size on disk, anyway is still basically the same.

  The system continuously records 13 channels of comma floating double-precision at 200 Hz. using the binary file write, I measured it is about 92 MB/hr on the disk. (more than 120 MB/hr with PDM and much more to write on the worksheet) In short, this 92 mb/hr rate is just too much data on the disk on this system.

  The modules that I record since, 9236 9237 and 9215 c-series modules, have 24-bit a/d converters or less. Does this mean that I have not need 64-bit to represent the number and accuracy even?

  Can I force/cast point values double-precision floating that I receive of the variables of e/s scan engine to the data type of a different, smaller, as a single-precision floating point and retain the same precision?

  Nickerbocker wrote:
  between noise and precision equipment, I doubt that it makes much difference.

  You can test it by looking at the difference between a DBL and converted to SGL DBL. But I support the Nickerbocker trick. I don't think it will make the difference

• change in value of ListBox on right click with the duration menu

  Hi all

  With the help of LV 2012...

  I have a listbox multicolumn containing a single column of text values.  I'm trying to implement the following features:

  Right click on an item will cause a runtime menu to open... user select 'Settings' in the menu and a dialog box with the settings specific to the element appears.

  The menu of the runtime has been easy.  The problem is that the value of the listbox (line) does not change with a single right-click.  I currently have to left click to change the value and then right click for the menu.  Any way to change the value with a right-click?

  Thank you!

  Charlie

  Rather than change the value, you can do something like this - use the mouse to the bottom? event for the listbox control. Because it is an event of filter, it must run everything first (although you will need to place a frame earlier in the structure of the event). Use the coords for this event and call Point to the method of lines of columns on the listbox. This will give you the line, now you can keep in a shift register. Do not throw the event, and this will cause the menu event, where you can now use the value of the line in front.

• Why overlays take much longer on grayscale images single precision

  Hello

  I came across a rather curious problem. In a Visual inspection machine, we create 8-bit 16MPixel images. These are then calculated in single precision images. After processing the image display us certain types of images of result to the user. Here, the user can use the mouse on the image display and gets a reading of the current image of the sector where the mouse is currently positioned. If the image is RGB or U8, fine.

  However, if the display holds one of the 32-bit grayscale images things become quite slow, by a factor of 5 to 10 about. Now I can see that 32-bit is quite a bit more than 8 bits, so I guess an increase in lap by a maximum factor of 4 times.

  Since the images are large enough, an update takes about 90-100 ms with the 32-bit image, while the same action requires little more than 10 to 20 ms with U8 and same RGB. Because the movement of the mouse is caught by a structure of the event, all movements are processed and finally the tail to cause a blockage of the software that all these events are processed. This leads to ridiculously long 'freeze' time in the software, sometimes as long as 20 sec, as I saw through a log of the events has been implemented for this purpose.

  Attached is an example of code that shows the unusually long processing time for overlays on SGL-images. If there is any suggestion, I would be happy to read them. Thanks in advance.

  Falk

  After in-depth discussions with German support NOR we have understood that it is not primarily the recovery action that consumes time, but rather my screen image update after each action of the event. As my goal was to provide the user with the most recent image information available as close to the position of the mouse as possible there is no another way to do it without compromising the goal that I have explained.

  Several alternative ideas, we had (some don't work well) are briefly explained below:

  1. Use the property of the band of the art instead of creating an overlay
     • PRO: ultra fast response because no update of the display image is needed, easy to implement
     • Cons: Stationary, takes advanced band rest a while to appear, requires the user to stay in the same place on the screen for a while, the band faded unpredictable (in my test) and reappears only after leaving and returning to the display picture more keep the mouse pointer for a few seconds
  2. Use an extra (classic style) indicator string to display the desired text in the desired position
     • PRO: also very fast
     • CON: kind of hassle to the code, because it implies the correct calculation of the desired position of the channel indicator using the position of the window of the façade, the image appears indicator and the position of the mouse. Actually not hard I know, but nothing that see you with your mind on your dinner... You'll need a bunch of different reference types here to acquire the position necessary to window VI, indicator to display Image and mouse properties
  3. As 2 but without moving the indicator
     • PRO: fast and easy to implement
     • CON: not as easy to use since the indicator is stationary somewhere around the display of images and not at the mouse position.
  4. copy/typecast image SGL U8 image and move forward with overlays
     • PRO: the response is improved to the level that I used
     • CON: 'problem' with the update of the display image remains and therefore increases the response time the picture gets
  5. Use the property of the information string Image instead of creating an overlay
     • PRO: would be faster than 1., since no required update picture
     • k.o. - CON: property seems to be Read-Only, so no changes defined by the user of the text is possible

  I guess my choice will be 2.

  If anyone has other ideas on this subject, I will be always happy to hear about them.

• change the value of the button cluster

  Hi all

  I wrote a program that has 5 poles and all groups contain a STOP"" button. the program can stop when the button is pressed.

  When I press the button, the value of the button goes to False and else False. I want to come True. so I tried using the 'value' property and set the value "False".

  but it is still true.

  I use event structure to see that the value changes. and set to 'Stop the value changes' all buttons in a single event.

  How can I change the value of the false button?

  Thank you

  Ritesh

  
  

• How to change the value of the Application for all users?

  Hi, I work on Apex 3.2.1.00.12 which is installed on a database of Oracle 10 g Enterprise Edition Release 10.1.0.5.0
  
  I'll explain my problem... At the beginning of the application, the user choose a year, each year can have 3 status and based on the State to restrict or grant access to certain tabs, pages and options. I put the status of the year selected in an Application element and then I just use an authorization scheme to check if the user can access pages or options.
  
  The problem is that if the administrator changes the status of the current year (for example, 1-2), users who are currently in the application will have access to the options of the State 1, instead of the State 2 options. is there a way to change the value of this element for all users?
  
  Thank you.

  Force a disconnection of all users? You can't really affect the values of the sessions other than your own via a browser, and from the point of application is part of a single session...

  You could re-read the value of point of application of its source whenever you load a page or tab game...

  Thank you

  Tony Miller
  Ruckersville, WILL

• change the value limit in default graphic view, obiee 11g

  Hello
  
  I have two measures with the columns of the year in my report, I have generated a graph.
  
  
  In x - axis, the values of a single measure is beginning with 10,00,000
  
  but another of the measurement values is no more than 10,000. If the second bar lines are not visible in the chart. My question is how to manually change the values on the x - axis.

  Modify the report-> change the properties of the graph-> scale-> change the limit from the default axis manually and enter the values min and max of the axes limits...

  PLS, mark it contributes to...

• Cannot change the value of mousewheel scroll

  After you have reinstalled windows and all I had on my old desktop, I seem to be unable to change my amount of scrolling the mouse on firefox. I looked through all the troubleshooting questions that have already been posted, and all users have responded that I had to access about: config and change the value of mousewheel.withnokey.numlines.

  However, when you access everything: config, I discovered that not only I don't the integer specified, I don't have any integer with a preferably name that contains "withnokey", so I tried to add it in me, but not to use. Currently my parchment done on lines 6 and 7 and I would like to go down to about 3.

  Hello, Skarlath, the scrolling behavior has been overhauled in firefox 17 (see for reference https://wiki.mozilla.org/Gecko:Mouse_Wheel_Scrollingtechnical information) - the old setting longer reverberate.

  It must still be possible to set a different frame rate. You can enter about: config in the firefox address bar (confirm the message information where it appears), search preferences starting with mousewheel.default.delta_multiplier_ ..., you can double-click on these parameters and assign a different value to - then a restart of firefox is required for the changed settings is taken into account.

• Change the value of all slides

  Hello world

  I need help today with a problem on the slide - void / knot vi and property.

  I would like to change any value of slides with a sub vi

  Any ideas?

  Thank you

  Hello

  Using the node property, you can change the value of the slide.

  Siva

• Change the value of varying directly?

  Suppose I have a variant from an external source.

  Suppose I know the data type, but I don't know the attributes and their values (if any).

  Is it possible to directly change the value of the variant, "under the hood" so to speak and leave all attributes intact?

  I know that I can read all attributes, generate a new variant with my new data and write them all back, but that seems very inefficient.

  Casting of new data to a variant, and then using the variant of data to convert the Original variants type that seems to work as well. Once again, kludgy.

  Sting autour with «...» VI.lib\Utility\VariantDataType\*.*, but so far, not to find a method 'live '.

  Thank you!

  You can use the structure of the element inplace to set the value of a varying existing.  It retains all the existing attributes.

• Event Structure... the mouse down or to the cases of change of value

  I feel, it is a simple problem, but I can't seem to find a solution.

  I have a VI that is supposed to communicate with a stepper motor drive.  I'm working on the Boolean setting keys on the Panel before (acting as of the momentary switches) that will jog the hourly engine or counterclockwise, as long as the button is pressed.  Once the user releases the button, the motor should stop jogging.

  I tried to use the mouse down and value change event.  With the help of the mouse down, for some reason, the time-out occurs almost immediately even while holding the mouse on the button.  This translates into what seems like nothing is happening.  Although the engine receives all orders he has to run, it receives the stop command immediately after.

  Using the value change case, the procedure works and the motor turns, but when you release the button (another change of value), all orders of jog are returned to the engine stop control tracking.  Sometimes the motor continues to run after the shutdown command has been sent, and I think that might be involved because it receives all the shortening of orders (again) and the judgment of control both.

  Is it possible to cnage my case event to run the way I want to what he... Send commands to the button click on... Send different command button.

  Thank you.

  Thanks for the suggestion...

  I could solve the problem I had.  Previously, I was trying to display the timeout to-1 to a value greater than 0 to launch the timeout on a button release event.  To solve the problem, I just removed all of the code that has been changing the value of timeout and left the default to-1.  I also removed all the code in the case of timeout.  Then, I created a new mouse event that is fired by releasing one of the buttons and copied in the code that used to be in the case of timeout.

  Now, the works of VI exactly as I need to... where an event occurs on a mouse a click of a button and a different event happes when the button is released.

  A very simple solution, however I've only worked in BT for about a week and I have not seen the mouse event when I scroll to the event.