σ m[c@`svdZddlmZmZmZmZddlZddlZddlZ ddl m Z de fd„ƒYZ dS(u Epoch module.i(tabsolute_importtdivisiontprint_functiontunicode_literalsN(tdate2numtEpochcB`s¦eZiid d6d6idd6d6Zddddd„Zd„Zd„Zd„Zd„Zd „Z d „Z d „Z d „Z d „Z d„ZeeƒZRS(goΕ P@uUTCuETgoΕ PΐcC`s+|dkr|dk sί|dk r0|dksί|dk rT|dk sί|dk sί|dkr„|dkr„|dksί|dksί|dk rœ|dk sί|dk rΐ|dk sί|dk sί|dk rt|tjƒ rdt|ƒt|ƒt|ƒt|ƒf}t|ƒ‚n||jkrbd|tttj |jƒƒƒf}t|ƒ‚n||_ |dk r†t |ƒ}n|dk rΛt |ƒd}t j|ƒ|_||jd|_n\t |ƒ|_t |ƒ|_tt j|jdƒƒ}|j|7_|j|d8_dS(uzCreate a new Epoch object. Build an epoch 1 of 2 ways: Using seconds past a Julian date: # Epoch( 'ET', sec=1e8, jd=2451545 ) or using a matplotlib day number # Epoch( 'ET', daynum=730119.5 ) = ERROR CONDITIONS - If the input units are not in the allowed list, an error is thrown. = INPUT VARIABLES - frame The frame of the epoch. Must be 'ET' or 'UTC' - sec The number of seconds past the input JD. - jd The Julian date of the epoch. - daynum The matplotlib day number of the epoch. - dt A python datetime instance. u‰Invalid inputs. Must enter sec and jd together, daynum by itself, or dt (must be a python datetime). Sec = %s JD = %s dnum= %s dt = %su9Input frame '%s' is not one of the supported frames of %sg€QD:Agυ@N(tNonet isinstancetDTtdatetimetstrt ValueErrortallowedtlisttsixtiterkeyst_frameRtfloattmathtfloort_jdt_secondstint(tselftframetsectjdtdaynumtdttmsgt deltaDays((sAlib/python2.7/site-packages/matplotlib/testing/jpl_units/Epoch.pyt__init__'s4$0$+%   cC`sA|j|kr|S|j|j|}t||j||jƒS(N(RR RRR(RRtoffset((sAlib/python2.7/site-packages/matplotlib/testing/jpl_units/Epoch.pytconvertdscC`s|jS(N(R(R((sAlib/python2.7/site-packages/matplotlib/testing/jpl_units/Epoch.pyRmscC`s9|}||jkr'|j|ƒ}n|j|jdS(Ngυ@(RR!RR(RRtt((sAlib/python2.7/site-packages/matplotlib/testing/jpl_units/Epoch.pyt julianDateqscC`sC|}||jkr'|j|ƒ}n|j|}|j|dS(Ni€Q(RR!RR(RRRR"tdelta((sAlib/python2.7/site-packages/matplotlib/testing/jpl_units/Epoch.pyt secondsPastys  cC`se|}|j|jkr-|j|jƒ}n|j|jkrRt|j|jƒSt|j|jƒS(u½Compare two Epoch's. = INPUT VARIABLES - rhs The Epoch to compare against. = RETURN VALUE - Returns -1 if self < rhs, 0 if self == rhs, +1 if self > rhs. (RR!RtcmpR(RtrhsR"((sAlib/python2.7/site-packages/matplotlib/testing/jpl_units/Epoch.pyt__cmp__‚s cC`sY|}|j|jƒkr0|j|jƒ}n|j|jƒ}t|j||jƒS(uΈAdd a duration to an Epoch. = INPUT VARIABLES - rhs The Epoch to subtract. = RETURN VALUE - Returns the difference of ourselves and the input Epoch. (RRR!RtsecondsRR(RR'R"R((sAlib/python2.7/site-packages/matplotlib/testing/jpl_units/Epoch.pyt__add__•s cC`s•ddljj}t||jƒr-|| S|}|j|jkrZ|j|jƒ}n|j|j}|j|j}|j|j|d|ƒS(ugSubtract two Epoch's or a Duration from an Epoch. Valid: Duration = Epoch - Epoch Epoch = Epoch - Duration = INPUT VARIABLES - rhs The Epoch to subtract. = RETURN VALUE - Returns either the duration between to Epoch's or the a new Epoch that is the result of subtracting a duration from an epoch. iNi€Q( tmatplotlib.testing.jpl_unitsttestingt jpl_unitsRtDurationRR!RR(RR'tUR"tdaysR((sAlib/python2.7/site-packages/matplotlib/testing/jpl_units/Epoch.pyt__sub__§s cC`sd|j|jƒ|jfS(uPrint the Epoch.u %22.15e %s(R#R(R((sAlib/python2.7/site-packages/matplotlib/testing/jpl_units/Epoch.pyt__str__ΖscC`s t|ƒS(uPrint the Epoch.(R (R((sAlib/python2.7/site-packages/matplotlib/testing/jpl_units/Epoch.pyt__repr__ΛscC`sRg}d}x?trM|||}||kr3Pn|j|ƒ|d7}qW|S(u­Generate a range of Epoch objects. Similar to the Python range() method. Returns the range [ start, stop ) at the requested step. Each element will be a Epoch object. = INPUT VARIABLES - start The starting value of the range. - stop The stop value of the range. - step Step to use. = RETURN VALUE - Returns a list contianing the requested Epoch values. ii(tTruetappend(tstarttstoptsteptelemstitd((sAlib/python2.7/site-packages/matplotlib/testing/jpl_units/Epoch.pytrangeΠs   N(t__name__t __module__R RRR!RR#R%R(R*R1R2R3R<t staticmethod(((sAlib/python2.7/site-packages/matplotlib/testing/jpl_units/Epoch.pyRs" =        (t__doc__t __future__RRRRRRR Rtmatplotlib.datesRtobjectR(((sAlib/python2.7/site-packages/matplotlib/testing/jpl_units/Epoch.pyts "