Develop Reference

How to compute pseudorange from the parameters fetched via Google GNSSLogger?

The official GNSS raw measurements fetched via GNSS logger app provides the following parameters :
TimeNanos
LeapSecond
TimeUncertaintyNanos
FullBiasNanos
BiasNanos
BiasUncertaintyNanos
DriftNanosPerSecond
DriftUncertaintyNanosPerSecond HardwareClockDiscontinuityCount
Svid
TimeOffsetNanos
State
ReceivedSvTimeNanos
ReceivedSvTimeUncertaintyNanos
Cn0DbHz
PseudorangeRateMetersPerSecond
PseudorangeRateUncertaintyMetersPerSecond
I'm looking for the raw pseudorange measurements PR from the above data. A little help?
Reference 1: https://github.com/google/gps-measurement-tools
Reference 2 : https://developer.android.com/guide/topics/sensors/gnss

Pseudorange[m] = (AverageTravelTime[s] + delta_t[s]) * speedOfLight[m/s]
where: m - meters, s - seconds.
Try this way:
Select satellites from one constellation (at first try with GPS).
Chose max value of ReceivedSvTimeNanos.
Calculate delta_t for each satellite as max ReceivedSvTimeNanos minus current ReceivedSvTimeNanos(delta_t = maxRst - curRst).
Average travel time is 70 milliseconds, speed of light 299792458 m/s. use it for calculation.
Don't forget to convert all values to the same units.
For details refer to this pdf and UserPositionVelocityWeightedLeastSquare class

Unfortunately Android doesn't provide pseudorange directly from the API - you have to calculate this yourself.
The EU GSA has a great document here that explains in detail how to use GNSS raw measurements in section 2.4:
https://www.gsa.europa.eu/system/files/reports/gnss_raw_measurement_web_0.pdf
Specifically, section 2.4.2 explains how to calculate pseudorange from the data given by the Android APIs. It's literally pages of text, so I won't copy the whole thing in-line here, but here's the Example 1 they share for a Matlab code snippet to compute the pseudorange for Galileo, GPS and BeiDou signals when the time-of-week is encoded:
% Select GPS + GAL TOW decoded (state bit 3 enabled)
pos = find( (gnss.Const == 1 | gnss.Const == 6) & bitand(gnss.State,2^3);
% Generate the measured time in full GNSS time
tRx_GNSS = gnss.timeNano(pos) - (gnss.FullBiasNano(1) + gnss.BiasNano(1));
% Change the valid range from full GNSS to TOW
tRx = mod(tRx_GNSS(pos),WEEKSEC*1e9);
% Generate the satellite time
tTx = gnss.ReceivedSvTime(pos) + gnss.TimeOffsetNano(pos);
% Generate the pseudorange
prMilliSeconds = (tRx - tTx );
pr = prMilliSeconds *Constant.C*1e-9;

Get documents between a range of dates in IBM Notes

I'm going crazy with all possible query syntaxes used on IBM Notes (old Lotus) databases for searching documents.
I just need all documents (i.e. emails) created (or delivered, which seems to be the same) between a given range of dates, using lotus.domino.Database.search(query) method in Java package for IBM Notes. Consider that I already know the dates format in my system ("dd/MM/yyyy").
Which should be the query?

First of all: To find out about the syntax just create a view in Domino Designer or check the views that are there (e.g. in your own mail database) and check the "Selection"- formula. Then remove the "SELECT" statement in front of it and use that as query.
Your query would be quite simple:
Form = "Memo" : "Reply" & #Date(#Created) >= [2018/01/01] & #Date(#Created) <= [2018/05/04]
if you are not sure, which date format your server uses, then just use this query instead:
Form = "Memo" : "Reply" &
#Date(#Created) >= #Date( 2018 ; 1 ; 1 ) &
#Date(#Created) <= #Date( 2018 ; 5 ; 4 )
This is the right formula for all mail- types. If you need alle calendar- type- documents, then use Form = "Appointment" : "Notice".
As a rule of thumb: Just go to the items- tab in the properties of any document you want to return and examine all items in the left hand site. Then simply use the item name in your formula as variable (except Body: That one would need special treatment).

Format "raw" string to Java UUID in PHP [duplicate]

This question already has answers here:
Format 32-character string with hyphens to become UUID
(3 answers)
Closed 7 months ago.
Is there a more effective, simplified means of converting a "formatted" Java UUID - without dashes - to a Java compatible format - with dashes - in PHP, and ultimately: How would I do it?
I have code that already performs this action, but it seems unprofessional and I feel that it could probably be done more effectively.
[... PHP code ...]
$uuido = $json['id'];
$uuidx = array();
$uuidx[0] = substr( $uuido, 0, 8 );
$uuidx[1] = substr( $uuido, 8, 4 );
$uuidx[2] = substr( $uuido, 12, 4);
$uuidx[3] = substr( $uuido, 16, 4);
$uuidx[4] = substr( $uuido, 20, 12);
$uuid = implode( "-", $uuidx );
[... PHP code ...]
Input: f9e113324bd449809b98b0925eac3141
Output: f9e11332-4bd4-4980-9b98-b0925eac3141
The data from $json['id'] is called from the following Mojang Profile API using the file_get_contents( $url ) function combined with a json_decode( $file ), which could alternatively be done through cURL - but since it would eventually be requesting anything up to 2048 profiles at once, I figured it would become slow.
I do have my code in use, and public, through the following ProjectRogue Server Ping API, which usually contains a list of online players.
Note: There are several questions related to this, but none apply to PHP as far as I am aware. I have looked.
I mention Java UUID as the parsed output should effectively translate to a Player UUID for use in a Java-Based plugin for Spigot or Craftbukkit after 1.7.X.

Your question doesn't make much sense but assuming you want to read the UUID in the correct format in Java you can do something like this:
import java.util.UUID;
class A
{
public static void main(String[] args){
String input = "f9e113324bd449809b98b0925eac3141";
String uuid_parse = input.replaceAll(
"(\\w{8})(\\w{4})(\\w{4})(\\w{4})(\\w{12})",
"$1-$2-$3-$4-$5");
UUID uuid = UUID.fromString(uuid_parse);
System.out.println(uuid);
}
}
Borrowed from maerics, see here: https://stackoverflow.com/a/18987428/4195825
Or in PHP you can do something like:
<?php
$UUID = "f9e113324bd449809b98b0925eac3141";
$UUID = substr($UUID, 0, 8) . '-' . substr($UUID, 8, 4) . '-' . substr($UUID, 12, 4) . '-' . substr($UUID, 16, 4) . '-' . substr($UUID, 20);
echo $UUID;
?>
Borrowed from fico7489: https://stackoverflow.com/a/33484855/4195825
And then you can send that to Java where you can create a UUID object using fromtString().

UUID is not a special java format. It is the Universal Unique Identifier.
A universally unique identifier (UUID) is an identifier standard used in software construction. A UUID is simply a 128-bit value.
What happen is that the conversion from the 128 bit value to a human readable version of the same value converting it to a string follow generally some conventions.
Basically the number is converted to the better human readable hexadecimal format with some hyphen to separate block of bits.
From a performance perspective you can use the several times the substr_replace function, instead of creating an array of strings using substr and applying implode to it.

Regex - Get text between two strings

I have a large text file which contains many abstracts (7k of them). I want to separate them. They have the following properties:
a number at the begining with a period right after
123.
and it always ends in:
[PubMed - indexed for MEDLINE]
It would be even better if I can get the title and abstract out of the separated string. I am fine if I have to split the articles first then split the texts.
In the example the title is the third line:
Effects of propofol and isoflurane on haemodynamics and the inflammatory response in cardiopulmonary bypass surgery.
The abstract is on the 8th line:
Cardiopulmonary bypass (CPB) causes reperfusion injury...
I have tried to use the following code for this text
Regex:
[0-9\.]*\s*(((?![0-9\.]*|MEDLINE).)+)\s*MEDLINE
Text:
1. Br J Biomed Sci. 2015;72(3):93-101.
Effects of propofol and isoflurane on haemodynamics and the inflammatory response
in cardiopulmonary bypass surgery.
Sayed S, Idriss NK, Sayyedf HG, Ashry AA, Rafatt DM, Mohamed AO, Blann AD.
Cardiopulmonary bypass (CPB) causes reperfusion injury that when most severe is
clinically manifested as a systemic inflammatory response syndrome. The
anaesthetic propofol may have anti-inflammatory properties that may reduce such a
response. We hypothesised differing effects of propofol and isoflurane on
inflammatory markers in patients having CBR Forty patients undergoing elective
CPB were randomised to receive either propofol or isoflurane for maintenance of
anaesthesia. CRP, IL-6, IL-8, HIF-1α (ELISA), CD11 and CD18 expression (flow
cytometry), and haemoxygenase (HO-1) promoter polymorphisms (PCR/electrophoresis)
were measured before anaesthetic induction, 4 hours post-CPB, and 24 hours later.
There were no differences in the 4 hours changes in CRP, IL-6, IL-8 or CD18
between the two groups, but those in the propofol group had higher HIF-1α (P =
0.016) and lower CD11 expression (P = 0.026). After 24 hours, compared to the
isoflurane group, the propofol group had significantly lower levels of CRP (P <
0.001), IL-6 (P < 0.001) and IL-8 (P < 0.001), with higher levels CD11 (P =
0.009) and CD18 (P = 0.002) expression. After 24 hours, patients on propofol had
increased expression of shorter HO-1 GT(n) repeats than patients on isoflurane (P
= 0.001). Use of propofol in CPB is associated with a less adverse inflammatory
profile than is isofluorane, and an increased up-regulation of HO-1. This
supports the hypothesis that propofol has anti-inflammatory activity.
PMID: 26510263 [PubMed - indexed for MEDLINE]

Two useful solutions have been proposed by Mariano and stribizhev:
Mariano's solution: Use the split method with the typical end
(?m)\[PubMed - indexed for MEDLINE\]$
DEMO : http://ideone.com/Qw5ss2
Java 4+
stribizhev's solution: Fully extract data from the text
(?m)^\s*\d+\..*\R{2} # Get to the title
(?<title>[^\n]*(?:\n(?!\n)[^\n]*)*) # Get title
\R{2} # Get to the authors
[^\n]*(?:\n(?!\R)[^\R]*)* # Consume authors
(?<abstract>[^\[]*(?:\[(?!PubMed[ ]-[ ]indexed[ ]for[ ]MEDLINE\])[^\[]*)*) #Grab abstract
DEMO: https://regex101.com/r/sG2yQ2/2
Java 8+

Try this:
"^[0-9]+\..*\s+(.*)\s+.*\s+((?:\s|.)*?)\[PubMed - indexed for MEDLINE\]"
First group would be title. Second would be abstract.

setFilter() with a string wildcard?

I see an example of doing a partial string search on the GAE google group (this thread):
String term1 = "cow";
String term2 = "horse";
Query q;
q.setFilter("name.matches('" + term1 + "%')");
so this works like:
"Find all objects of the class where property 'name' starts with term1"
so that would match stuff like:
cowfoo
cowgrok
cowetc
right? I could then replace term1 with term2, and find all instances that begin with 'horse'. Is there a doc that explains this anymore? I just want to check this is how it really works before I make a decision on how to store some strings for my data model,
Thanks

I can't find the docs which present the prefix matching syntax you presented, but your logic is sound. And it looks like the syntax is supported based on the google group message you cited.
For the Python runtime, I would perform a prefix match by using an inequality filter. You can also do this on the Java runtime like this (and this is probably how the % syntax is implemented):
// prefix is some string object
q.setFilter("my_string_field >= :1 && my_string_field < :2");
q.execute(prefix, (prefix + "\ufffd"));