How to count/measure FRAMES?

I have to incorporate Transitions that last 10-15 frames.
how to do this?
when you set the duation of a transition, is that the Frames or Secs/Time?
Thanks

It's in seconds.

Similar Messages

How to create count() measure for certain set of records in BMM Layer

Hello all.
I have a logical table like this one (Table AAA)
Table AAA

--------------------------+
| *Key* | *Name* | 
--------------------------+
| 1-2EMHS9 | AAA |
--------------------------+
| 1-2EMWMO | BBB |
--------------------------+
| NULL | CCC |
--------------------------+
I need to calculate count() of records where Key is not NULL. In this example, this field must return coun() = 2.
I suppose, CASE operator may help me with that, but I do not know for sure how to do this.
Thank you for help,
Alex.

Thank you.
But I must concretise my issue.
I need to calculate number of records (e.g. order_id) that sutisfy appropriate condition (one of columns (e.g. loy_member_id) is set to null).
I created logical column, that returns order_id if condition (loy_member_id is null) is met.
Look at my logical column:
Q Orders (LPM) - must return number of orders where loyalty_member_id is null.
It has an expression:
CASE WHEN NOT "Foxtrot (my) replica"."Sales Orders".LOY_MEMBER_ID IS NULL THEN "Foxtrot (my) replica"."Sales Orders".ORDER_ID ELSE NULL END
So, this returns order_id I need.
But the question is how to count number of order_id's returned by this column on BMM Layer.
When I define my column with next expression:
*COUNT(CASE WHEN NOT "Foxtrot (my) replica"."Sales Orders".LOY_MEMBER_ID IS NULL THEN "Foxtrot (my) replica"."Sales Orders".ORDER_ID ELSE NULL END)*
I receive error:
+[38083] The Attribute 'Q Orders LPM' defines a measure using an obsolete method.+
Thank you,
Alex.
Edited by: Alex B on 3/3/2009 19:59

How do i measure my each blocks running time

Hi, guys
I am going to measure my each major blocks running time, the are totally five major blocks in my final VI, the last four of them were in a while loop
Thanks
Solved!
Go to Solution.

What exactly do you mean by a "block"? Is it a subVI, LabVIEW primitive, some chunk of LabVIEW code?
You can use multiple Tick Count functions. If you place your code in a flat sequence structure with Tick counts in frames in between, you can subtract values from each other and get the relative time of each piece of code.
Why are you worried about the execution time? Are you having particular timing problems? Most LabVIEW primitives will run so fast, you'll probably see no or very little change in the tick count before and after them.
Here is an example to show how to measure the execution time for one section of code.

How to count frequency of two signal at the same time ?

Hello every one
please help me with this one i am really stuck.
The situation   : I have two square wave signal, and i want to measure the frequency of both of themat the same time.
the problem : Error -50103 occurred at DAQmx Read (Counter DBL 1Chan 1Samp).vi:3
Please see the attachement.
i also have 3 analog inputs to be measured.
but i dont have any problem with the analog inputs,,,multiple analog inputs can easily be measured,,,,,but the prob lem is in the digitl (square wave ) signals.
Attachments:
i want to use two counter input.GIF ‏54 KB
two counter tasks1.vi ‏250 KB

NI has an excellent overview of the accuracy and tradeoffs of the different freq measurement methods titled "Making Accurate Frequency Measurements." To boil down the essence of it, the (possibly) increased accuracy of the 2-counter method depends on a relatively long collection / accumulation time which would in turn typically limit the rate at which you could update your measured freq value.
Now let me offer some friendly but blunt advice. LabVIEW makes it easy to collect data. However, there are many other factors affecting the usefulness of that data. I support the dictum: "It is hard to measure *well*."  Choice of sensors, their sensitivity to environment, various sources of noise, an understanding of the decision to be made from the data, programming methods, etc. And even more etc.
What I mean is that just because a hardware freq measurement can be performed that is precise to 1 part per million, it would be very RARE in a test that ALL of those 6 significant digits prove useful. In your app, the measurements are presently only approximately correlated in time. And the gap of blind time between measurements will usually represent a much longer period of time than the measurement itself.
Analogy: suppose you had a 100 minute film at 25 frames/sec for a total of 150_000 frames. Now start selecting individual frames that are separated by some random # of frames between about 200 and 500. In the end, you may end up with a sequence of 400 frames in the correct order. Each individual frame is VERY accurate, but the collection of all of them can zip by in 16 seconds and not give you a much understanding about the movie.
What would usually work out much better is to sacrifice some accuracy in order to collect a greater quantity of frames. You trade off the instantaneous accuracy for the overall coherency.
Sorry, got on a roll...   Back to your question. My own preference is almost always to avoid consuming hardware resources when not truly necessary. I've been toying with counters for many years and have still never once deployed an app using a 2-counter frequency measurement. I do the 1-counter measurement and save the other counter(s) for other purposes.
If you've got an M-series board, the 80 MHz timebase allows you to measure a 500 kHz pulsetrain with a quantization error of only about 0.06% (1 part in 160). There's a pretty fair chance that whatever physical process emits that pulsetrain isn't appreciably more stable than that
-Kevin P.

How to Count Number of "Visits" or "Visitors" on a Public Portal?

I have a publicly accessible Portal that does not require users to login. As such, in the performance reporting logs, most every user is PUBLIC. This doesn't allow me to provide standard Visitor Analysis metrics (like unique visitors, new visitors, pages per visit, etc.). Using the Session count doesn't work for me either, because our server team has the KeepAlive directive turned off, so basically, every request is a new session, which really skews the analysis.
Has anyone encountered this before? Or, can someone tell me what the best practices are for the KeepAlive Apache directive and other related configuration items?
Thanks!

The kind of metrics you are looking for is often referred to as 'Business Centric Portal Analytics'. Oracle Portal provides the performance monitoring scripts for tuning and troubleshooting your Portal. It does not provide any functionality other metrics.
You may want to look at offerings from Omniture. More information regarding their offering is available in the white paper 'How to Effectively Measure and Monitor Activity in Your Portal
Environment' on OTN :
http://www.oracle.com/technology/products/ias/portal/pdf/oow_10gr2_1333_sethi_andrew.pdf

How can I measure a 0% or 100% duty cycle signal ?

I want to measure the duty cycle of an input signal using a counter of a 6030-E board.
I work with a PXI Rack under Labwindows/CVI.
My program already works properly for duty cycle between 1% and 99%, but it is not able to detect 0% duty cycle (ie : signal to ground), nor 100% duty cycle (ie : signal to power supply).
The problem is I don't understand how the counter works in such a situation (it cannot detect any edge, as long as the signal is continuous 0V or continuous 12V).
Please have a look on the following code :
1- First, the counter is configured
// Reset Compteur
i_Status = GPCTR_Control(iDevice, iCptID, ND_RESET);
//Definition du type de mesure du compteur (mesure temps impulsion)
i_Status = GPCTR_Set_Application (iDevice, iCptID, ND_SIMPLE_PULSE_WIDTH_MSR);
//Definition de la vitesse d'echantillonage (20 Mhz)
i_Status = GPCTR_Change_Parameter(iDevice, iCptID, ND_SOURCE, ND_INTERNAL_20_MHZ);
//Definition du signal a mesurer (defaut)
i_Status = GPCTR_Change_Parameter (iDevice, iCptID, ND_GATE, ND_DEFAULT_PFI_LINE);
// initialisation du compteur
i_Status = GPCTR_Change_Parameter(iDevice, iCptID, ND_INITIAL_COUNT, 0);
// Preparation du compteur avant de l'armer
i_Status = GPCTR_Control (iDevice, iCptID, ND_PREPARE);
2- Then, every 10 ms, the value of the counter is read, so that I can calculate the duty cycle...
i_Status = GPCTR_Watch(iDevice, iCptID, ND_COUNT, ul_val_cpt);
3- ...and the counter is armed again for the next reading
i_Status = GPCTR_Control(iDevice, iCptID, ND_ARM);
When duty cycle changes from x% to 0% or 100%, the counter always keep the value corresponding to x%.
Even if I reset the counter between each measurement, it keeps this value ! I don't understand how it is possible.
How can I know that the counter didn't see any edge, and so that duty cycle is 0% or 100% ?
Thank you in advance for your help !
FraB

Hi,
Just have a look at this link, it can be interesting for you...
http://forums.ni.com/ni/board/message?board.id=40&message.id=2161&requireLogin=False
Regards
DD

Sap script '' how to create table frame in sap script"""

i have some problem in sap script'' how to create table frame in sap script"""

Hi,
you can use BOX command..
Syntax
/: BOX [XPOS] [YPOS] [WIDTH] [HEIGHT] [FRAME] [INTENSITY]
Effect: draws a box of the specified size at the specified position.
Parameters: For each of XPOS, YPOS, WIDTH, HEIGHT and FRAME both a measurement and a unit of measurement must be specified. The INTENSITY parameter should be specified as a percentage between 0 and 100.
1. XPOS, YPOS: Upper left corner of the box, relative to the values of the POSITION command.
Default: Values specified in the POSITION command.
The following calculation is performed internally to determine the absolute output position of a box on the page:
X(abs) = XORIGIN + XPOS
Y(abs) = YORIGIN + YPOS
2. WIDTH: Width of the box. Default: WIDTH value of the SIZE command.
3. HEIGHT: Height of the box. Default: HEIGHT value of the SIZE command.
4. FRAME: Thickness of frame.
Default: 0 (no frame).
5. INTENSITY: Grayscale of box contents as % .
Default: 100 (full black)
Measurements: Decimal numbers must be specified as literal values (like ABAP numeric constants) by being enclosed in inverted commas. The period should be used as the decimal point character. See also the examples listed below.
Units of measurement: The following units of measurement may be used:
TW (twip)
PT (point)
IN (inch)
MM (millimeter)
CM (centimeter)
LN (line)
CH (character).
The following conversion factors apply:
1 TW = 1/20 PT
1 PT = 1/72 IN
1 IN = 2.54 CM
1 CM = 10 MM
1 CH = height of a character relative to the CPI specification in the layout set header
1 LN = height of a line relative to the LPI specification in the layout set header
/: BOX FRAME 10 TW
Draws a frame around the current window with a frame thickness of 10 TW (= 0.5 PT).
/: BOX INTENSITY 10
Fills the window background with shadowing having a gray scale of 10 %.
/: BOX HEIGHT 0 TW FRAME 10 TW
Draws a horizontal line across the complete top edge of the window.
/: BOX WIDTH 0 TW FRAME 10 TW
Draws a vertical line along the complete height of the left hand edge of the window.
/: BOX WIDTH '17.5' CM HEIGHT 1 CM FRAME 10 TW INTENSITY 15
/: BOX WIDTH '17.5' CM HEIGHT '13.5' CM FRAME 10 TW
/: BOX XPOS '10.0' CM WIDTH 0 TW HEIGHT '13.5' CM FRAME 10 TW
/: BOX XPOS '13.5' CM WIDTH 0 TW HEIGHT '13.5' CM FRAME 10 TW
Draws two rectangles and two lines to construct a table of three columns with a highlighted heading section.
check the fallowing link also
http://help.sap.com/saphelp_40b/helpdata/en/d1/803293454211d189710000e8322d00/content.htm
Mark the points if u find it useful...
Regards,
Omkar.

How do you measure a Cycle's lenght in time, not bars and beats?

How to you measure the time length on a selected cycle ? I understand that when any cycle is selected, you can see the length of that specific range on Bars and beats, but not in Real time. How do I get to see ( Calculate ) the real time length of a cycle range? When working with video this feature is absolutely necessary. ProTools shows you the length in time when a cycle range is selected. I also know that you can calculate the distance of any given point in the song, relative to the start time, you can see it in the Time Position display, but what If I need a more exact time calculation ( min:sec:frames, etc. ) between two specific cue points that are only relevant to video sync, not relative to the start time and not relative to musical values. Like if I need the exact time length for a video cue, etc.

Thank you, very Much, That's it !!!
I've looked for that for years...LOL, It never occurred to me to look for a "negative",
Awesome
J

How to count the number of cycles in sine wave

Hi,
I am new to Labview. I have labview 8.2 version and my dataacquisition is NIDAQPAD6015. I could write a program to generate a sine wave of desired frequency through simulate signal. My question is how do i measure the number of cycles for this sine wave as soon as I run the program. Hope my question is clear.
Ravi Mokirala

To find the offset (which in this case is the Y value midpoint around which the sine wave is symetrical):
Capture more than one cycle. Find the min and max values. Subtract Min from Max and divide by 2. Then subtract this result from the Max value (or add the result to the Min value). This is the offset.
To count the number of cycles where the offset is unknown, just use the first data point value as a reference. If the next data point is more positive, then count the number of times that the first data point is repeated and the next data point is more positive. Of course with DBL data type, you probably would not get the exact same value as the first data point, so you need to use In Range with a very tiny limit. It all depends on your signal amplitude, frequency, and sampling rate.
Example: Lets say your first data point value is 0.5 and the 2nd point is 0.55. You need to look for another value that is between 0.48 and 0.52. Then read the very next data point value. If it is greater than the previous value, add one to the cycle count. If it is less than, you are at half a cycle, do not add to the count.
- tbob
Inventor of the WORM Global

Count Measure by Minimum values in Dimension only

Hi, I am drawing a huge blank here -
I have a Count measure on my fact table, and need to count the rows only if a code in the dimension table is the minimum code for the Fact
For my fact, I need to count from the following dims:
Dim A (count all from this dim - which would be a distinct?)
Dim B (count only the minimum code from this dim)
Any suggestions?
Thanks

Hi oroborus , you are basically trying to have two new measures in your Fact, based on some conditions.
Ex: You have a measure Total_Orders in your Fact and based on some conditions you want two new measures say Total_US_Orders and Total_OnLine_Orders.
Lets assume you have two dimensions Country_Dim and Store_Dim. which gives you location and Store of an order.
In your business model, duplicate the Total_Orders measure and name it as Total_US_Orders. Check the Use existing logical columns as the source box and go into the Expression Builder.
Here you define the formula for this new column. Which will be something like
FILTER(Fact.Total_Orders USING Country.Country_Code='US').
Similarly, create the Total_OnLine_Orders by duplicating the Total_Orders measure and write a formula something like
FILTER(Fact.Total_ORDERS USING Store.Store_Type = 'Online')
I hope this will give you a brief idea of how to create calculated columns in business layer.
Good Luck
Sai

How do u measure the size of the infocube?

hai gurus
1) how do u measure the size of the infocube?
2) what r the asap methodolagies?
thanks in advance
rams

hi Rams,
1. use transaction se16, infocube table /../f[infocube name] and /.../e[infocube name], count 'number of entries' - total records
use transaction db02 tablename infocubename - size in bytes
Re: how can we measure the info cube size
2. asap methodology
Re: Lifecycle Implementation
hope this helps.

Pci-6224 counter measurement

We need to make simultaneous counter pulsewidth measurements with our PCI-6224 DAQmx card. It has two counters and the function panel info/help indicates specifically that it can do simultaneous measurements by creating 2 different tasks (DAQmsCreatTask()) and then using two separate DAQmxStartTask() calls. We then do 2 separate DAQmxReadCounterScalarF64() calls.
The problem is that DAQmxStartTask()doesn't initiate the measurement like the function panel documention indicates. The measurement(s) aren't initiated until the DAQmxReadCounterScalarF64() is executed, which makes simultaneous measurements impossible (i.e. if the measurement isn't initiated until the Read, then the first Read will be executing while both simultaneous pulses are generated and the second read will be too late). I've put breakpoints in and verified this repeatedly.
How do I get the DAQmxStartTask() to initiate the counter measurement immediately?

Hi nap3n,
What Dustin said is true of buffered tasks, but it sounds like the original poster is using an on-demand counter task, which is where the device starts counting when you call DAQmx Read. I think your best bet might be to use buffered tasks by calling DAQmx Timing (Implicit) like in the Meas Pulse Width-Buffered-Cont example. It may also be helpful to synchronize their arm start triggers, though implicit timing will still cause them to drift apart depending on the input signals.
Brad
Brad Keryan
NI R&D

How I can measure frequency of TTL signal without external clock?

Hello,
I want to measure frequency of TTL signal using PXI-6254 or PXI-6713, without using external clock.
Frequency will be up to 100kHz. How I can use internal counter of 20MHz or 80MHz?

Hi Yuta K,
You have not stated what software you want to use for this measurement, but in case you're using LabVIEW, please go to the Example Finder (in LabVIEW go to "Help >> Find Examples").
In the Example Finder, you make sure the "Browse" tab is stil selected, and than you go to:
Hardware Input and Output >> DAQmx >> Counter Measurements >> Digital Frequency
Here you will find some good examples of measuring a digital frequency with 1 or 2 onboard counters.
If you need additional information, please let us know!
Best regards,
Peter S

How to link text frames in Pages 5.2?

How to link text frames in Pages 5.2?

The correct term in Pages is Text Boxes, and true linking is not implemented in v5.2. You can Unite, Intersect, Subtract, and Exclude multiple Text Boxes via the Arrange panel. These attributes only appear when two or more Text Boxes are selected. Also, on the Arrange menu, you will need Object Placement set to Move with Text, and the Text Wrap set to None for more accurate positioning.
In the following example, there was initially a Text Box with overflowing text that was duplicated. With both Text Boxes selected and aligned, I could then use the Unite feature from the Arrange panel. This allowed the text to flow into the second box. Selecting text in one box and dragging upwards continues the text selection between both boxes. Hoefler italic applied in one box is applied to both. Appropriately placed, another trip to the Arrange panel to enable Text Wrap around and text fit adjustments.

How to count number of sales orders generated in a month in SAP SD

Hi SD Gurus,
I have a very strange query from client. I have to count the number of sales order created in a month for a z report. For example 30 in Jan, 25 in Feb etc. Could anyone suggest me How to count number of sales orders generated in a month in SAP SD.
Regards
Vinod Kumar

Hi,
Goto the T.Code "SE16" or "SE16n" or "SE11".
Enter the table name as VBAK
Enter the created on date as the starting date of the period and to date as the end date.
Enter.
Click on "Number of Entries".It will tell you the number of entries created in a particular period.
If you want a report,goto the T.Code "VA05n".
Regards,
Krishna.

How to count/measure FRAMES?

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