IDL常用命令.docx
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IDL常用命令
IDL常用命令
Slice2D
probe='1'
level='l2'
species='hplus'
data_rate='srvy'
name='mms'+probe+'_hpca_'+species+'_phase_space_density'
timespan,'2015-10-16/13:
06:
00',1,/min;timerangetoload
trange=timerange（）
time=trange[0];slicetime
;loaddataintotplot
mms_load_hpca,probes=probe,trange=trange,data_rate=data_rate,level=level,datatype='ion'
;reformatdatafromtplotvariablesintocompatible3Dstructures
dist=mms_get_dist（name）
;getsingledistribution
;-3d/2dinterpolationshowsmoothcontours
;-3dinterpolatesentirevolume
;-2dinterpolatesprojectionofasubsetofdatanearthesliceplane
;-geometricinterpolationisslowbutshowsbinboundaries
;---------------------------------------------
slice=spd_slice2d（dist,time=time）;3Dinterpolation
;slice=spd_slice2d（dist,time=time,/two）;2Dinterpolation
;slice=spd_slice2d（dist,time=time,/geo）;geometricinterpolation
;averagealldatainspecifiedtimewindow
;slice=spd_slice2d（dist,time=time,/geo,window=20）;window（sec）startsatTIME
;slice=spd_slice2d（dist,time=time,/geo,window=20,/center_time）;windowcenteredonTIME
;averagespecificnumberofdistributions（usesNclosesttospecifiedtime）
;slice=spd_slice2d（dist,time=time,/geo,samples=3）
;plot
spd_slice2d_plot,slice
stop
;+
;Purpose:
;Cribsheetdemonstratinghowtoobtainparticledistributionslices
;fromMMSHPCAdatausingspd_slice2d.
;
;Runasscriptorcopy-pastetocommandline.
;（examplescontainingloopscannotbecopy-pastedtocommandline）
;
;
;Field-alignedcoordinatedescriptions:
;'BV':
ThexaxisisparalleltoBfield;thebulkvelocitydefinesthex-yplane
;'BE':
ThexaxisisparalleltoBfield;theBxV（bulk）vectordefinesthex-yplane
;'xy':
（default）Thexaxisisalongthecoordinate'sxaxisandyisalongthecoordinate'syaxis
;'xz':
Thexaxisisalongthecoordinate'sxaxisandyisalongthecoordinate'szaxis
;'yz':
Thexaxisisalongthecoordinate'syaxisandyisalongthecoordinate'szaxis
;'xvel':
Thexaxisisalongthecoordinate'sxaxis;thex-yplaneisdefinedbythebulkvelocity
;'perp':
ThexaxisisthebulkvelocityprojectedontotheplanenormaltotheBfield;yisBxV（bulk）
;'perp_xy':
Thecoordinate'sx&yaxesareprojectedontotheplanenormaltotheBfield
;'perp_xz':
Thecoordinate'sx&zaxesareprojectedontotheplanenormaltotheBfield
;'perp_yz':
Thecoordinate'sy&zaxesareprojectedontotheplanenormaltotheBfield
;
;
;
;$LastChangedBy:
egrimes$
;$LastChangedDate:
2016-05-2513:
37:
25-0700（Wed,25May2016）$
;$LastChangedRevision:
21200$
;$URL:
svn+ssh:
//thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/mms/examples/advanced/mms_slice2d_hpca_crib.pro$
;-
;===========================================================================
;Basic
;===========================================================================
;setup
probe='1'
level='l2'
species='hplus'
data_rate='srvy'
name='mms'+probe+'_hpca_'+species+'_phase_space_density'
timespan,'2015-10-16/13:
06:
00',1,/min;timerangetoload
trange=timerange（）
time=trange[0];slicetime
;loaddataintotplot
mms_load_hpca,probes=probe,trange=trange,data_rate=data_rate,level=level,datatype='ion'
;reformatdatafromtplotvariablesintocompatible3Dstructures
dist=mms_get_dist（name）
;getsingledistribution
;-3d/2dinterpolationshowsmoothcontours
;-3dinterpolatesentirevolume
;-2dinterpolatesprojectionofasubsetofdatanearthesliceplane
;-geometricinterpolationisslowbutshowsbinboundaries
;---------------------------------------------
slice=spd_slice2d（dist,time=time）;3Dinterpolation
;slice=spd_slice2d（dist,time=time,/two）;2Dinterpolation
;slice=spd_slice2d（dist,time=time,/geo）;geometricinterpolation
;averagealldatainspecifiedtimewindow
;slice=spd_slice2d（dist,time=time,/geo,window=20）;window（sec）startsatTIME
;slice=spd_slice2d（dist,time=time,/geo,window=20,/center_time）;windowcenteredonTIME
;averagespecificnumberofdistributions（usesNclosesttospecifiedtime）
;slice=spd_slice2d（dist,time=time,/geo,samples=3）
;plot
spd_slice2d_plot,slice
stop
;======================================================================
;Field-alignedslices
;======================================================================
probe='1'
level='l2'
species='hplus'
data_rate='srvy'
name='mms'+probe+'_hpca_'+species+'_phase_space_density'
bname='mms'+probe+'_fgm_b_gse_srvy_l2_bvec';nameofbfieldvector
vname='mms'+probe+'_hpca_'+species+'_ion_bulk_velocity';nameofbulkvelocityvector
timespan,'2015-10-16/13:
06:
00',1,/min;timerangetoload
trange=timerange（）
time=trange[0];slicetime
mms_load_hpca,probes=probe,trange=trange,data_rate=data_rate,level=level,datatype='ion'
dist=mms_get_dist（name）
;loadBfielddata
mms_load_fgm,probe=probe,trange=trange,level='l2'
;loadvelocitymoment
mms_load_hpca,probes=probe,trange=trange,data_rate=data_rate,level=level,$
datatype='moments',varformat='*_'+species+'_ion_bulk_velocity'
;field/velocityalignedslice
;-theplot'sxaxisisparalleltotheBfield
;-theplot'syaxisisdefinedbythebulkvelocitydirection
;---------------------------------------------
slice=spd_slice2d（dist,time=time,window=window,$
rotation='bv',mag_data=bname,vel_data=vname）
;plot
spd_slice2d_plot,slice
stop
;===========================================================================
;Exporttimeseries
;===========================================================================
probe='1'
level='l2'
species='hplus'
data_rate='srvy'
name='mms'+probe+'_hpca_'+species+'_phase_space_density'
timespan,'2015-10-16/13:
06:
00',1,/min;timerangetoload
trange=timerange（）
mms_load_hpca,probes=probe,trange=trange,data_rate=data_rate,level=level,datatype='ion'
dist=mms_get_dist（name）
;produceaplotoftheclosest2distributionsevery20secondsfor1minute
times=trange[0]+20*findgen（4）
samples=2
fori=0,n_elements（times）-1dobegin
slice=spd_slice2d（dist,time=times[i],samples=samples）
filename='mms'+probe+'_'+species+'_'+time_string（times[i],format=2）
;plotandwrite.pngimagetocurrentdirectory
spd_slice2d_plot,slice,export=filename;,/eps
endfor
stop
end
;Purpose:
Abasicoverviewofhowtoobtainandplottwo-dimentionalslicesof
;SSTand/orESAparticledistributions.
;
;Run"thm_ui_slice2d"ontheIDLconsoletousefortheGUIversion.
;
;
;Methods:
;Geomtric:
;Eachpointontheplotisgiventhevalueofthebinitinstersects.
;Thisallowsbinboundariestobedrawnathighresolutions.
;
;2DInterpolation:
;Datapointswithinthespecifiedthetaorz-axisrangeareprojectedonto
;thesliceplaneandlinearlyinterpolatedontoaregular2Dgrid.
;
;3DInterpolation:
;Theentire3-dimensionaldistributionislinearlyinterpolatedontoa
;regular3Dgridandasliceisextractedfromthevolume.
;
;
;Coordinates:
;Thecoordinatesysteminwhichtheslicewillbeoriented.
;Optionsare'DSL'（default）,'GSM','GSE'andthefollowingmagnetic
;fieldalignedcoordinates（fieldparalleltozaxis）.
;
;'xgse':
ThexaxisistheprojectionoftheGSEx-axis
;'ygsm':
TheyaxisistheprojectionoftheGSMy-axis
;'zdsl':
TheyaxisistheprojectionoftheDSLz-axis
;'RGeo':
Thexistheprojectionofradialspacecraftpositionvector（GEI）
;'mRGeo':
Thexaxisistheprojectionofthenegativeradialspacecraftpositionvector（GEI）
;'phiGeo':
Theyaxisistheprojectionoftheazimuthalspacecraftpositionvector（GEI）,positiveeastward
;'mphiGeo':
Theyaxisistheprojectionoftheazimuthalspacecraftpositionvector（GEI）,positivewestward
;'phiSM':
TheyaxisistheprojectionoftheazimuthalspacecraftpositionvectorinSolarMagneticcoords
;'mphiSM':
TheyaxisistheprojectionofthenegativeazimuthalspacecraftpositionvectorinSolarMagneticcoords
;
;
;SliceOrientation
;Thesliceplaneisorientedbyusingthefollowingoptionstospecify
;itsxandyaxeswithrespecttothecoordinatesystem.
;（"BV,""BE",and"perp"willbeinvariantbetweencoordinatesystems）.
;
;'BV':
ThexaxisisparalleltoBfield;thebulkvelocitydefinesthex-yplane
;'BE':
ThexaxisisparalleltoBfield;theBxV（bulk）vectordefinesthex-yplane
;'xy':
（default）Thexaxisisalongthecoordinate'sxaxisandyisalongthecoordinate'syaxis
;'xz':
Thexaxisisalongthecoordinate'sxaxisandyisalongthecoordinate'szaxis
;'yz':
Thexaxisisalongthecoordinate'syaxisandyisalongthecoordinate'szaxis
;'xvel':
Thexaxisisalongthecoordinate'sxaxis;thex-yplaneisdefinedbythebulkvelocity
;'perp':
ThexaxisisthebulkvelocityprojectedontotheplanenormaltotheBfield;yisBxV（bulk）
;'perp_xy':
Thecoordinate'sx&yaxesareprojectedontotheplanenormaltotheBfield
;'perp_xz':
Thecoordinate'sx&zaxesareprojectedontotheplanenormaltotheBfield
;'perp_yz':
Thecoordinate'sy&zaxesareprojectedontotheplanenormaltotheBfield
;
;
;OTHER:
;
;Formoredetailed/advancedusagesee:
;thm_crib_part_slice2d_adv.pro
;thm_crib_part_slice2d_multi.pro
;
;
;NOTES:
;
;
;$LastChangedBy:
aaflores$
;$LastChangedDate:
2016-08-2513:
12:
48-0700（Thu,25Aug2016）$
;$LastChangedRevision:
21727$
;$URL:
svn+ssh:
//thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/themis/examples/basic/thm_crib_part_slice2d.pro$
;
;-
compile_optidl2
thm_init
nl=ssl_newline（）
print,nl,'Startingbasic2Dparticledistri
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