Search DaniWeb - julian

Julian Date Conversion 12 Years Ago by manticmadman … out is if there is a way to obtain the Julian date from a given date input so I do not… within my code? Thanks #parameter JD is today's current Julian Date def SunRise(lat,lng,JD,y,m,d): import… Re: Julian Date Conversion 12 Years Ago by Gribouillis I don't know about julian date, but google led me to [this module](https://github.com/adrn/apwlib) (under GPL) which seems to implement the desired functionality by subclassing datetime. Conversion between degrees and radians can be done with math.degrees() and math.radians() in the standard library (numpy versions exist as well). Julian Date functions 19 Years Ago by goboxe Hi, I am looking at functions that convert standard date to Julian data and vice versa. I tried to search the forum, but found nothing. Thanks, G Julian date to Calender Date 17 Years Ago by sarath.koiloth [I][B][COLOR=Green]Please help me to get calender date from the given Julian date(1187610073812). [/COLOR][/B][/I] [I][B][COLOR=Green]Thanks in Advance..:)[/COLOR][/B][/I] Re: Julian date to Calender Date 17 Years Ago by masijade That is not a Julian Date. That is simply the number of milliseconds since the "epic" (00:00:00 Jan 1st 1970 UTC) (i.e. a completely normal date as known in nearly all programming languages, excpet that some use seconds rather than milliseconds). Simply do [inlinecode]new Date(1187610073812);[/inlinecode]. Re: Julian Date functions 14 Years Ago by tratak use this: [CODE]dim jd as Double ' julian day dim mDate as date ' your date mdate = Now() jd = mdate.ToOADate[/CODE] Julian date 13 Years Ago by jetlife76 Trying to figure out how to use the gregorianToJd function in php to determine the julian date when a user inputs a specific date in time. i have my code to where it will do this without using the function, but now i need to show it using the function. Re: Julian date 13 Years Ago by jetlife76 …['months']; $days = $_POST['day']; $years = $_POST['years']; //associative array for Julian Date $monthdays=array( 'Jan'=>0, 'Feb'=>31, 'Mar… Julian Day vs the Date object to get the present day 9 Years Ago by saurabh.mehta.33234 ….format(time); } My doubt is why are we using this julian method instead of just directly extracting the day from the… Re: Julian Day vs the Date object to get the present day 9 Years Ago by saurabh.mehta.33234 Yes this is an android code..So you are suggesting that I should use Date class instead of the Julian method here right? Re: Julian Day vs the Date object to get the present day 9 Years Ago by rubberman … is just so stupid! Any rational date class will use Julian dates (a floating point representation of date + time) which can… Re: Julian Day vs the Date object to get the present day 9 Years Ago by JamesCherrill …) which is what most people mean when they say "Julian". The rest is a whole bunch of constants and… Re: Calendar in C program using julian dates 15 Years Ago by Ancient Dragon julian dates is just a count of the number of days from 1 January to the current day of year. And that's all toJulian() is doing. C++ help with Julian day program 19 Years Ago by djbsabkcb … >> m_year; cin >> d_year; long today_date = julian( year, month, day); long difference = julian_date - today_date; //today_date…lt;< endl << endl; return 0; } long julian ( int year, int month, int day) { int j_year =… C++ help with Julian day program revised 19 Years Ago by djbsabkcb …include <cmath> using namespace std; long julian ( int year, int month, int day ); int…gt; t_month; cin >> t_day; long today_date = julian( t_year, t_month, t_day); long difference = today_date - julian_date…; endl << endl; return 0; } long julian ( int year, int month, int day) { int … Re: C++ help with Julian day program revised 19 Years Ago by Dave Sinkula [QUOTE=djbsabkcb]Below is my new code for this julian day program. I have fixed some of the errors I … earlier. However, the day is still one short for the julian day and my conditional if statement seems to be the… Re: C++ help with Julian day program revised 19 Years Ago by zyruz … day less in some years, (not when calculating, but the julian date is 1 less than is shuld be). Calendar in C program using julian dates 15 Years Ago by julie_kaz …. I am trying to create a program using julian dates where user enters month & year and show the …, int day, int year) //takes calendar date and calculates its julian day within the year { int count; for(count = 1; count… Re: gregorian to julian in python 17 Years Ago by Duoas …with the Gregorian calendar. Certain terms (like "Julian") can be properly applied to specific things withing …the Gregorian system, but the Julian calendar it is not. Usually the Proleptic Gregorian … modern computing tasks... Try googling "gregorian julian" for conversion algorithms. Good luck. gregorian to julian in python 17 Years Ago by axn here is the snippet data = ''2007-12-31 Name (mike) Age (34).....' gregorian = time.strftime(data.split(" ")[0]) print gregorian this gives me "2007-12-31" i need to convert the gregorian date in the variable to julian date. i tried this but it gives me the current date julian = time.strftime('%j', time.localtime()) Problem converting normal dates to julian date 14 Years Ago by msqueen082 ….Text = Format("DDD - YYY") Then lblOut.Text = "Julian date must have a dash" End If 'Prompts the… value entered to ' then JulianDate JulianDate = Val(txtJulian.Text) 'converts julian date to a regular date If Int(JulianDate / 1000) <… Re: Problem converting normal dates to julian date 14 Years Ago by msqueen082 … don't use the correct format, like (ddd-yyyy) for julian date.. im sure it is something very simple. [code] Dim… txtJulian.Text = "DDD-YYYY" Then lblOut.Text = "Julian date must have a dash" txtJulian.Focus() txtJulian.SelectAll… How to convert julian date to date using php 11 Years Ago by rpv_sen Hi I am trying to convert julian date in to date format. can any one please help me. **For Example:** Julian date - 114021 Output Should be as below 2014/01/21 - (YYYY/MM/DD) Re: gregorian to julian in python 17 Years Ago by woooee The Python Cookbook is the first place to look. The following link states "- Added conversion to and from Julian Day number". I haven't tried it. [url]http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/117215[/url] Re: gregorian to julian in python 17 Years Ago by Duoas Unfortunately, the "Julian Day Number" is one of those terms I mentioned (or rather, it is often abused to mean "the day of the year"). Fortunately it looks like that link uses the JDN correctly! Nice catch! Gregorian to Julian 13 Years Ago by willywhomperz I am new to Java and could use some help. Trying to write something using scanner or a JoptionPane to convert inputs from Gregorian to Julian. Then use interface to convert it the other way. How do I start and what do I do? Re: Julian Date Conversion 12 Years Ago by manticmadman Thanks for your resonse.That looks like it will help me, unfortunately, I do not know how to install such additions. Any links on how to do that?? Re: Julian Date Conversion 12 Years Ago by Gribouillis You can download the code by pushing the ZIP button in the project page, then uncompress the zip file. In a console (or cmd in windows), change directory to the module directory (the directory with the file setup.py), then in your console, as administrator or root, type python setup.py install and this should install the module in your python… Re: Julian Date Conversion 12 Years Ago by hughesadam_87 YOu should start using the pandas package. It has explicit support for handling timeseries data and lots of builtin methods to convert. I imagine you're reinventing wheels somewhat. Re: Julian Date Conversion 12 Years Ago by manticmadman shoomoo...I am completely lost on how to install packages. Honestly, I've just finished my firt comp sci class, and am learning python on my own. http://www.clearskyinstitute.com/xephem/ Here is a package, I am dying to load and use.