How does EXS24 interpolate?

How does EXS24 interpolate between samples? How does this depend on the note range surrounding the sample (for example, the range may encompass several samples).

iBooks for Mac: Highlight passages and make notes

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How does Pulse Params Vi determine pulse width

I need to know how the PulseParams vi calculate pulse width, rise/fall time? Is it based on the standard 10/90 method or something else? How does it determine what is a "valid" pulse? What is the "Delay" parameter and how do you use it?

Hello Lancer,
The following is taken from LabVIEW Help under Pulse Parameters:
X is the input sequence. X must meet the following conditions:
� The number of samples in X must be greater than or equal to 3.
� X should have a rising edge, a plateau, and a falling edge.
� The expected peak noise amplitude must be less than 50% of the expected amplitude.
If the number of samples in X is less than 3, the VI sets all the pulse parameters to NaN and returns an error. If X does not contain a rising edge, plateau, and falling edge, the VI analyzes the data, assigns values to as many pulse parameters as it can identify, and sets parameters it cannot identify to NaN. The VI does not report this condition as an error.
Note X can be a positive- or negative-going pulse. A histogram is used to determine top and base. If the difference between top and base is negative, the pulse is considered negative-going with a negative amplitude.
If the data in X is noisy beyond the expected 50% amplitude, the VI does not have enough information to differentiate between glitches and pulse data and may assign incorrect values to the pulse parameters. Because it cannot be detected, the VI does not report this condition as an error.
Note If the data is noisy, you can apply a median filter to the data before passing it to the Pulse Parameters VI. Refer to Noisy Pulse Analyzed with a Median Filter for more information about analysis with a median filter.
Note When the X data is a constant value c, the VI sets the pulse parameters to the following values.
amplitude = overshoot = undershoot = delay = duration = 0.
top = base = c.
risetime = falltime = slew rate = NaN.
slew rate is the ratio between (90% amplitude - 10% amplitude) and the risetime.
overshoot is the difference between the maximum value in the pulse and the topline.
risetime is the time required to rise from 10% amplitude to 90% amplitude on the rising edge of the pulse.
top is the line that best represents the values when the pulse is active, high, or on. For a negative-going pulse, top is less than base and results in a negative amplitude. For a positive-going pulse, top is larger than base and results in a positive amplitude.
amplitude is the difference between top and base.
base is the line that best represents the values when the pulse is inactive, low, or off and is the level closest to zero. For a negative-going pulse, base is larger than top and results in a negative amplitude. For a positive-going pulse, base is less than top and results in a positive amplitude.
undershoot is the difference between the baseline and the minimum value in the pulse.
error returns any error or warning from the VI. You can wire error to the Error Cluster From Error Code VI to convert the error code or warning into an error cluster.
falltime is the time required to fall from 90% amplitude to 10% amplitude on the falling edge of the pulse.
duration is the difference between the falling edge time and the rising edge time at which 50% amplitude occurs.
delay is the difference between the time origin and the time at which 50% amplitude occurs on the rising edge of the pulse.
Pulse Parameters Details
Note The Cycle Average and RMS, Transition Measurements, Pulse Measurements, and Amplitude and Levels VIs provide more measurements than the Pulse Parameters VI, and you can configure each of those VIs.
The waveform-related parameters are slew rate, overshoot, topline (top), amplitude, baseline (base), and undershoot. If y-axis units are volts, then slew rate has units of volts per sample. The time-related parameters are risetime, falltime, duration (width), and delay and are expressed in units of samples.
Note The VI assumes the input pulse or pulse train has a bimodal, or two-state, distribution. Any input other than a bimodal input can lead to inconsistent results.
The Pulse Parameters VI uses the following steps to calculate the output parameters.
1. Find the maximum and minimum values in the input sequence X.
2. Generate the histogram of the pulse with 1% range resolution.
3. Determine the upper and lower modes to establish the top and base values.
4. Find the overshoot, amplitude, and undershoot from top, base, maximum, and minimum values.
5. Scans X and determines the slew rate, risetime, falltime, duration, and delay.
The Pulse Parameters VI interpolates duration and delay to obtain a more accurate result not only of duration and delay but also of slew rate, risetime, and falltime.
If X contains a train of pulses, the Pulse Parameters VI uses the train to determine overshoot, top, amplitude, base, and undershoot but uses only the first pulse in the train to establish slew rate, risetime, falltime, duration, and delay.
Note Because pulses commonly occur in the negative direction, the Pulse Parameters VI can discriminate between positive and negative pulses and can analyze the X sequence correctly. You do not need to preprocess the sequence before analyzing it.
If none of these suggestions help, or if I�m not correctly understanding your issue, please post the software and versions you are using, the applicable portions of your code, and any other information that may help, and I�ll be happy to look further into it.
Have a nice day!
Robert M
Applications Engineer
National Instruments
Robert Mortensen
Software Engineer
National Instruments

How does one create their own interpolation

I am currently working on a tile-based environment in which the user controls a tank. I have been attempting to use interpolators to smooth out the movement between tiles, but I have had a lot of trouble acheiving the desired effects. From what I have gathered from various posts is that the interpolator classes are only useful for repeating animations (please correct me if this statement is wrong).
My question then is:
How does one create their own or methods which simulates the interpolation behavior; I am particularly interested in the PositionInterpolator for translating the missles fired by the tank.
I attempted to do this several times, but I have failed. Here is one of my attempts:
public void fire()
     show(); //show the missle geometry
     int TRANSLATION_TIME = 1000; //blast alive for 5 seconds
     float DISTANCE = 20.0f; //missle travels a distance of 20 units
     //interpolate path
     long startTime = System.currentTimeMillis();
     long endTime = startTime +TRANSLATION_TIME;
     long interval = endTime - startTime;
     float translationPercent;
     float lastTransPercent = 0;
     float dist;
     Transform3D translate = new Transform3D();
     while(System.currentTimeMillis() < endTime && !collision)
     interval = System.currentTimeMillis() - startTime;
     translationPercent = (float)interval/TRANSLATION_TIME;
     dist = DISTANCE*(translationPercent - lastTransPercent);
     lastTransPercent = translationPercent;
     translate.setTranslation(new Vector3f(0.0f, 0.0f, -dist));
     interpolate(translate);
public void interpolate(Transform3D translate)
     Transform3D t3d = new Transform3D();
     missleTG.getTransform(t3d);
     t3d.mul(translate);
     missleTG.setTransform(t3d);
What happens using this code is that the missle just waits at its initial location until the TRANSLATION_TIME has passed, and then jumps to the final position -- the missle does not smoothly translate to the final location. Are there any explainations out there for this behaviors.
-Thanks in advance

Hi,
I'm also working on a game environment where the user can move around in a spaceship and fire missiles etc...
I haven't looked much at interpolators, but I use Behaviors for everything I need to move/rotate/scale...
You can for example create your own behavior (by extending the Behavior class) and set it up to move the missile when you press a specific key, or when any other kind of event takes place...
You should check the documentation for the Behavior class.
Hope this helps...

How does systemn determin pricing procedure of billing type

How does system determinate pricing procedure of F2???????????????????
By doc.pric.proc? but in IMG, it is empty!!!
and I don't think it is reference sales order's pricing procedure
because if you use OR + TAN, the reference document of billing is delivery order!!!!!!

Hi zhang
In pricing procedure determination OVKK , whatever DuPP you maintain that is linked to Billing document
In VOV8 we can see the CuPP of the document . so if the DuPP is linked to CuPP in OVKK then the same pricing procedure will be flowing to billing document also . Apart from that in VOV8 also make sure that , in billing data you are maintaining the billing type
Regards
Srinath

In Pages 5 when I try to attach a pages document to an email it gives me 2 folders and 4 files ??? How does one email a pages document.

How does one email a pages document? In pages 5 when I try to attach a pages document to a gmail email it gives me 2 folders and 4 other files to choose from.

Sounds like you are using Gmail.
Pages 5 uses a zipped package of files as its format. 3rd party servers don't understand the format and show it as the component parts.
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How does Creative Cloud for teams work with staff who work in two locations ie in the office/home

How does Creative Cloud from teams work with staff who work in two locations i.e. in the office and home?

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How does one change the font size for folders and/or file lists in the Bookmarks Library?

How does one change the font size for folders and/or file lists in the '''Bookmarks''' Library?
Since the upgrade to version 9.0.1 of Firefox, the Bookmarks feature changes are confusing me. They seem to be confusing themselves as well. The list of bookmarks has changed. The font size is so small that my aging eyes cannot read it without fogging the screen with my breath. Some folders are out of alphabetical order (where I know they were previously good), and some are missing altogether (folders to which I frequently add references).
As for missing or deranged files or folders, was there something that I should have done or now need to do to recover those after the upgrade (or before)?
With regard to font size,
1. there is no “Edit Bookmarks” or like option to edit the list in this version
2. the “zoom” option in the “view” list of functions is greyed out when in “Show All Bookmarks” window
3. expanding the browser window has no effect on font size
4. “Preferences” settings for font size has no effect in that window either, including advanced settings
5. “Help” offers none that I can find.
Can any of you Help?!?

Maybe this extension helps:
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Under search in maps, names come up that aren't in my contacts. How does this happen?

Under search history in the Maps app,...along with all the other places I
did search for, some addresses comes up that I'm not familiar with, and they stay
there. In some cases I didn't search for them at all. Some I may have. A name also
appears, under the address, like "from John Doe". It’s a name that
I'm familiar with my email, but is not in my contacts. Why and how does
this happen?
For example, a person I receive emails from for work, came up as the
"from", and the address, after I searched for it (not on my phone).....I found out
it was the address of his company, I place I've never searched for, nor is
there a hyper-link to it any emails/websites that I could have clicked on
accidentally.
In another example, the beginning of an address “5165” which I may have searched
for and starting typing in came up in the history with several locations that
start with those numbers. Most of them say “from current location”, but one says from
a name, whom again I’m familiar with by email, but is not in my contacts and
have no idea of why the name would be somehow connected to the address.

Thank you for the reply. I really appreciate it. Do you know why the names are attached, as "from"?
I attached a screen shot image. "Harry" and "Angela" are not contacts in my phone. Who would their names get there?

I need to change my e-mail address in the app store to enable me to get updates and buy more. How does this happen??

I need to change my e-mail address in the app store, how does that work??

On apple website, seraching on support, the article HT1918 explains.
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I hope I was helpful !

Can i upgrade my laptop's graphic card? and how does this upgrading affect the other functions?

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How does this work?

This is not a complaint, but a confused sigh of admiration. I've got an email account at the university where I teach. When I got my iBook, it took me a while, and a few conversations with IT at the school, to get this account working in the Mail application. (Since I have a Verizon DSL at home, I had to include that SMTP as the outgoing server.) Anyway, I synched this mail account (along with my AOL and .Mac accounts) onto the iPhone, and it works perfectly, both incoming and outgoing. I didn't have to change any of the settings. I thought I was computer savvy, but I can't wrap my mind around this. It seems like magic. How does it work?

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How does APEX check for null values in Text Fields on the forms?

Hello all,
How does APEX check for null values in Text Fields on the forms? This might sound trivial but I have a problem with a PL/SQL Validation that I have written.
I have one select list (P108_CLUSTER_ID) and one Text field (P108_PRIVATE_IP). I made P108_CLUSTER_ID to return null value when nothing is selected and assumed P108_PRIVATE_IP to return null value too when nothign is entered in the text field.
All that I need is to validate if P108_PRIVATE_IP is entered when a P108_CLUSTER_ID is selected. i.e it is mandatory to enter Private IP when a cluster is seelcted and following is my Pl/SQL code
Declare
v_valid boolean;
Begin
IF :P108_CLUSTER_ID is NULL and :P108_PRIVATE_IP is NULL THEN
v_valid := TRUE;
ELSIF :P108_CLUSTER_ID is NOT NULL and :P108_PRIVATE_IP is NOT NULL THEN
v_valid := TRUE;
ELSIF :P108_CLUSTER_ID is NOT NULL and :P108_PRIVATE_IP is NULL THEN
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My problem is it is returning FALSE for all the cases.It works fine in SQL Command though..When I tried to Debug and use Firebug, I found that Text fields are not stored a null by default but as empty strings "" . Now I tried modifying my PL/SQL to check Private_IP against an empty string. But doesn't help. Can someone please tell me how I need to proceed.
Thanks

See SQL report for LIKE SEARCH I have just explained how Select list return value works..
Cheers,
Hari

How does one use an external microphone with the internal camera?

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Forest

In the new Keynote how does one find the Wrap Inspector to wrap text around a photo??? Thanks

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Is it possible to have your whole family on one apple id or is it better to have each person have there own? If each has their own does each id have to buy their own music and apps? How does find my iphone work with one apple id or two?

Is it possible to have your whole family on one apple id or is it better to have each person have there own? If each has their own does each id have to buy their own music and apps? How does find my iphone work with one apple id or two? also I am going to be going off to college soon should I make an itunes id for my self and how will I get all the music from the old id?

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If each has their own does each id have to buy their own music and apps?
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How does find my iphone work with one apple id or two?
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I am going to be going off to college soon should I make an itunes id for my self and how will I get all the music from the old id?
If you have authorized a computer with the old apple ID, you can transfer old media purchased through the old to other devices via iTunes. This doesn't mean the media purchases through the old apple ID it transferred to the new account. If you plan to make future purchases and don't wish to share them with others, make your own apple ID.

How does EXS24 interpolate?

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