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View Code? Open in Web Editor NEWRadar Altimeter Database System (RADS)
License: Other
Radar Altimeter Database System (RADS)
License: Other
Weighting function does not depend on dimension y:
w = top%prev%data(j) - top%prev%data(i)
w = exp (x * x * z)
should be:
w = top%prev%data(j) - top%prev%data(i)
w = exp (w * w * z)
Original issue reported on code.google.com by [email protected]
on 10 Jan 2014 at 9:04
What steps will reproduce the problem?
rads2grd4 -Sj2/a --sel=17,30,20 --res=0.2/0.02 grd=mle4_nadir_rms.nc.
What is the expected output? What do you see instead?
I expected the attitude dimension to be 43. The range is -0.2 to 0.64 deg^2 and
resolution is 0.02. Instead the dimension is 2.
Original issue reported on code.google.com by [email protected]
on 15 Jun 2012 at 3:57
Should we add --sat=tp as an option that would merge both TOPEX and Poseidon
data?
Original issue reported on code.google.com by [email protected]
on 17 Apr 2012 at 4:27
Please describe what type of enhancement is requested.
In RADS3, data fields could be used as vectors, if a dollar sign ($) followed
the field number. Is the feature available in RADS4? In particular, I would
like a method to use SMTHIONO in the XML <data> element.
If math operations on vectors are possible, I plan to submit two other feature
requests: 1) add the DDT operator from GMT and 2) add an arbitrary-length
along-track smoothing operator(s), i.e. <data>sla 10 BOXCAR</sla>, etc.
Original issue reported on code.google.com by [email protected]
on 17 Dec 2013 at 1:24
What steps will reproduce the problem?
radscolin4 -Vsla,time,lat,lon -Sj2/a -C1,10 -P238 -o
Produces a file radscolin_p0238.nc with all fields set to NaN
Additionally, it produces the error:
radscolin4: NetCDF: Numeric conversion not representable
The ASCII output (produced without the -o) is fine.
Original issue reported on code.google.com by [email protected]
on 20 Sep 2013 at 5:52
Revision r604 produces standard deviations near 1.0 for most variables.
Original issue reported on code.google.com by [email protected]
on 10 Feb 2014 at 8:38
I'm trying to use the distance to coast as a limit in RADS4. In my mind, if I
call:
radsstat4 -c -Sj2/a -Vsla -Ldist_coast=300,10000
then I would think that -Ldist_coast=300,10000 should read dist_coast and apply
the limits, even though it doesn't appear in the variables (-V) list.
In RADS3 I worked around this by using opt:
radsstat -c sat=j2/a sel=0 opt=4501 lim:45=300,10000
But, that doesn't work in RADS4, I assume because opt is now equivalent to an
alias.
Original issue reported on code.google.com by [email protected]
on 6 Jul 2012 at 2:27
What steps will reproduce the problem?
1. rads2nc -Sj2 -C20
Original issue reported on code.google.com by [email protected]
on 26 Sep 2013 at 5:04
Rather than concatenating multiple xml files into a single file, it would be
more convenient to include multiple separate -X flags for separate files. For
example:
radsstat4 -c sat=j2 -Xno_inv_bar.xml -Xexclude_cycles.xml
would produce the same output as:
cat no_inv_bar.xml exclude_cycles.xml > merge.xml
radsstat4 -c sat=j2 -Xmerge.xml
Original issue reported on code.google.com by [email protected]
on 14 Jun 2012 at 12:15
radsstat should be able to produce netCDF output. One file only.
Original issue reported on code.google.com by [email protected]
on 21 Jun 2012 at 9:36
What steps will reproduce the problem?
radsstat4 -c -Sj1 -C50,55
What is the expected output? What do you see instead?
# Statistics of RADS variables (box weight)
# Created: 2013-01-31 15:15:02 UTC: radsstat4 -c -Sj1 -C50,60
#
# Satellite : j1/a
# Cycles : 50 - 60
# Passes : 1 - 280
#
# Output columns:
# ( 1) cycle
# ( 2) date at beginning of cycle [YYMMDD]
# ( 3) nr of measurements
# ( 4) mean time [seconds since 1985-01-01]
# ( 5- 6) mean and stddev of sea level anomaly [m]
50 030516 506022 580093605. -0.00538 0.10431
51 030516 502845 580949891. -0.00550 0.10277
52 030516 497699 581807776. -0.01190 0.10057
53 030516 496214 582664351. -0.01093 0.10001
54 030516 490364 583521661. -0.01051 0.09817
55 030516 489908 584377784. -0.00846 0.10043
Original issue reported on code.google.com by [email protected]
on 31 Jan 2013 at 3:16
[deleted issue]
What steps will reproduce the problem?
radsstat4 -c sat=j2
Produces output:
radsstat4: Error loading variable "cycle_check"
radsstat4: Variable "NAN" not found
2 remaining items on stack
radsstat4: Cleaned up
when rads.xml is
<var name="sla">
<quality_flag sat="j2" action="append">cycle_check</quality_flag>
</var>
<var name="cycle_check">
<math>cycle 19 NEQ 0 NAN</math>
</var>
Original issue reported on code.google.com by [email protected]
on 11 Jun 2012 at 6:31
What steps will reproduce the problem?
1. radsstat4 -c -Sj2/a.mle4 -C36,128
What is the expected output? What do you see instead?
The date for cycle 127 is incorrect:
# Output columns:
# ( 1) cycle
# ( 2) date at beginning of cycle [YYMMDD]
# ( 3) nr of measurements
# ( 4) mean time [seconds since 1985-01-01]
# ( 5- 6) mean and stddev of sea level anomaly [m]
36 090624 466243 772854425. -0.09082 0.09655
127 090704 478589 850816443. -0.07977 0.10446
128 111223 484152 851673553. -0.08259 0.10547
What version of the product are you using? On what operating system?
Please provide any additional information below.
Original issue reported on code.google.com by [email protected]
on 6 Jul 2012 at 3:51
Instead of having different tags <netcdf> <math> <grid> it would be good to
have one <data> tag, since they cannot be used simultaneous anyhow. The single
tag prompts the idea that any next <data> tag overwrites the previous (or adds
when 'action="append"' is used.
It should be easy to recognise the source in <data> tags:
- If contains ".nc", then grid
- If contains " " then math
- If starts with [0-9\-+.] then constant (new source type)
- If contains ":" then netcdf attribute
- Otherwise netcdf variable
One should also be able to use
source=grid,grid_l,grid_c,grid_q,math,constant,nc_att,nc_var,netcdf
Original issue reported on code.google.com by [email protected]
on 12 Jun 2012 at 12:42
What steps will reproduce the problem?
radsstat4 -c -Sj2 --opt:45=1 -Ldist_coast=300,100002.
radsstat4 -c -Sj2 --opt=4501 -Ldist_coast=300,10000
rads2asc4 -Sj2 --opt=4501 -Ldist_coast=300,10000 -C10 -P100
Calling only --opt=4501 or -Ldist_coast=300,10000 separately does not produce
the error.
all produce:
Segmentation fault - invalid memory reference
Original issue reported on code.google.com by [email protected]
on 11 Jul 2012 at 2:26
What steps will reproduce the problem?
radscolin4 -Sj2 -C1,3 -P100 -V0,2,3
What is the expected output? What do you see instead?
The range misses an increment for each set of columns. The output is:
# Column ranges for each variable:
# 1 - 3 : sea level anomaly [m]
# 3 - 5 : latitude [degrees_north]
# 5 - 7 : longitude [degrees_east]
# 7 : number of measurements
# 8 : record number
Original issue reported on code.google.com by [email protected]
on 3 Jul 2012 at 11:52
What steps will reproduce the problem?
radsstat4 sat=e1
What is the expected output? What do you see instead?
radsstat4: Error loading variable "alt"
radsstat4: Error loading variable "sla"
Original issue reported on code.google.com by [email protected]
on 14 Jun 2012 at 2:48
Move hardcoded satellite information from radsxoconv to rads.xml?
Original issue reported on code.google.com by [email protected]
on 3 Jul 2011 at 9:17
What steps will reproduce the problem?
1. rads2grd4 -Sj2/a -Vsla --opt=414
2. rads2grd4 -Sj2/a -Vsla --opt:alt=_eiggl04s
Original issue reported on code.google.com by [email protected]
on 6 Jul 2012 at 3:44
Still get errors in daily stats with radsstat4:
radsstat4 -Sc2 -C38,39 -Vsla
130317 47484 890135178. 0.02245 0.10135
130318 45500 890221762. 0.02292 0.10892
130319 46996 890307602. 0.02245 0.10423
130320 216 890352091. 0.03479 0.06510
130320 137352 890480836. 0.02378 0.10348
130323 46628 890653908. 0.02301 0.11371
130324 46028 890740360. 0.02480 0.10949
2013-03-20 is at the transition of cycles 38 and 39.
Original issue reported on code.google.com by [email protected]
on 18 Dec 2013 at 3:32
Michael R. Shannon/University of Colorado, Boulder reported c2p0782c048.nc had
no data. The C2 logs show:
SIR_FDM_L1/LATEST/CS_OFFL_SIR_FDM_1B_20131228T100538_20131228T101050_B001.nc ...
Error: File too long (covers 3 passes)
In CS_OFFL_SIR_FDM_1B_20131228T100538_20131228T101050_B001.nc:
pass_number = 782, 1 ;
rads_gen_c2_l1r.f90 issues the error because passnr(1) > passnr(2), even though
nrec = 331.
if (passnr(1) > passnr(2) .or. (passnr(1) == passnr(2) .and. nrec > 4000)) then
Original issue reported on code.google.com by [email protected]
on 3 Jan 2014 at 6:48
When the -r0 flag is radscolin no output is produced if the entire column is
NaNs:
For example,
radscolin4 -r0 sel=0 lat=-35,-30 sat=tx/a cycle=120 pass=149
produces no output.
In RADS3, a column of NaNs and statistics were produced:
radscolin -r0 sel=0 lat=-35,-30 sat=tx/a cycle=120 pass=149
# Satellite data selections:
#
# 1: sat=tx/a cycle=120 pass=0149
#
# Columns 1 - 1 : sea level anomaly [m]
#
NaN
NaN
NaN
NaN
NaN
NaN
NaN
NaN
NaN
NaN
NaN
NaN
NaN
# avg: NaN 120 149
# rms: NaN 120 149
# nr : 0 120 149
Original issue reported on code.google.com by [email protected]
on 17 Apr 2012 at 8:30
What steps will reproduce the problem?
1. radscolin4 -Sj1 -C1 -Stx -C344 -Vsla
2. radscolin4 -Sj1 -C241 -Sj2 -C2 -Vsla
What is the expected output? What do you see instead?
Adding -P1,254 produces the expected output.
Original issue reported on code.google.com by [email protected]
on 1 Aug 2012 at 6:42
Include a way to select point and distance to point as selection criterion.
Original issue reported on code.google.com by [email protected]
on 8 Jun 2011 at 1:33
For rads2grd4 -S/--sat is limited to five satellites. More would be preferred.
Original issue reported on code.google.com by [email protected]
on 31 Dec 2012 at 3:44
What steps will reproduce the problem?
radsstat4 sat=j2/a --var=sla
What is the expected output? What do you see instead?
radsstat4: Variable "?c<\?`a" not found
radsstat4: Unknown variable "?c<\?`a" removed from list of variables
radsstat4: Fatal error2.
Original issue reported on code.google.com by [email protected]
on 15 Jun 2012 at 7:16
What steps will reproduce the problem?
1. radscolin4 -Vsla,lat,lon -P0173 -Sj2/a -C195,200
Seg fault occurs for -P173 and last cycle >= 200. Other passes or cycle
combinations produce normal output.
(At the time that the seg faults occurred, the last cycle/pass of j2/a in RADS
was cycle 200, pass 193.
Original issue reported on code.google.com by [email protected]
on 14 Dec 2013 at 12:05
We need a program to create stats from xover files, à la xstat.
Original issue reported on code.google.com by [email protected]
on 9 Jun 2012 at 3:41
The RADS3 argument sat= produces the correct output:
radscolin4 -r0 sat=tx -P227 -C10-20
The --sat= flag produces the error "radscolin4: Failed to find "-S" or "--sat="
on command line":
radscolin4 -r0 --sat=tx -P227 -C10-20
The -S flag produces no error, but only two cycles of output:
radscolin4 -r0 -Stx -P227 -C10-20
! $Id: radscolin.f90 71 2011-10-29 02:39:46Z [email protected] $
Original issue reported on code.google.com by [email protected]
on 17 Apr 2012 at 3:30
radsxolist
-d = print difference
-s = statistics only
This clashes with radsxogen options
-d = duals only
-s = singles only
which would be useful for radsxolist as well.
Thus reassign -d to -s to
-l = list both crossover values (both legs)
-n = do not list individual crossovers, only statistics
That makes listing the differences the default.
Original issue reported on code.google.com by [email protected]
on 19 Jun 2012 at 2:00
radscolin should be able to produce 2-D arrays of variables.
One file per pass.
Original issue reported on code.google.com by [email protected]
on 8 Jun 2011 at 1:32
Please describe what type of enhancement is requested.
Add additional fields for beta prime, alpha, yaw, and pitch
Original issue reported on code.google.com by [email protected]
on 10 Sep 2012 at 5:02
What steps will reproduce the problem?
1. radsstat4 -c sat=tax cycle=10,12
What is the expected output? What do you see instead?
Expected:
10 921221 470414 251975738. 0.0175 0.0970
11 921231 426335 252788665. 0.0188 0.0986
12 930110 380787 253683497. 0.0144 0.1001
Seen instead:
10 110321 470414 251987350. 0.02976 0.10429
11 921231 426335 252795490. 0.02730 0.10284
12 930110 380787 253694379. 0.03177 0.10650
Original issue reported on code.google.com by [email protected]
on 5 Jun 2012 at 7:14
Command lines should be parsed the way getopt does it, so that we can use
-Sj2
-S j2
--sat=j2
--sat j2
This work has already been started by implementing (in revision r187) a well
working mimic of getopt/getopt_long in rads_misc.f90.
Original issue reported on code.google.com by [email protected]
on 22 Jun 2012 at 3:17
What steps will reproduce the problem?
1. radsstat4 -c cycle=0,1 sat=j2/a
What is the expected output? What do you see instead?
Output does not stop after cycle 1
Original issue reported on code.google.com by [email protected]
on 27 Jul 2012 at 9:03
In rads2grd4 the -C flag has two definitions:
-C boundaries are cell oriented
-C specify first and last cycle and modulo
What steps will reproduce the problem?
1. rads2grd4 sat=j2 -Cx -C10 grd=j2c010_cx.nc
What is the expected output? What do you see instead?
Should produce the same output as:
rads2grd4 sat=j2 -Cx cycle=10 grd=j2c010_cx.nc
Original issue reported on code.google.com by [email protected]
on 5 Jun 2012 at 7:29
What steps will reproduce the problem?
radscolin4 -Sj2/a.d -Xj2_mle3.xml -P43
What is the expected output? What do you see instead?
segmentation fault
Original issue reported on code.google.com by [email protected]
on 20 Jul 2012 at 7:53
line 36: [[: 20 1: syntax error in expression (error token is "1")
Original issue reported on code.google.com by [email protected]
on 21 Dec 2013 at 4:54
What steps will reproduce the problem?
rads2asc4 --sat=j1/b sel=0,414,416 -C263 -P100
radsstat4 -c --sat=j1/b sel=0,414,416
etc.
The header rads2asc4 and radsstat4 do not report aliased variables:
# Col 5 = EIGEN-GL04c orbital altitude [m]
# Col 6 = GPS orbital altitude [m]
In RADS3 the alias was reported:
# Col 5 = orbital altitude, CNES EIGEN-GL04S [m]
# Col 6 = alias: orbital altitude, CNES EIGEN-GL04S [m]
Original issue reported on code.google.com by [email protected]
on 9 Jul 2012 at 3:31
radsstat4 -Sj2 -Vsla
What is the expected output? What do you see instead?
# Statistics of RADS variables (box weight)
# Created: 2013-02-06 19:28:28 UTC: radsstat4 -Sj2 -Vsla
#
# Satellite : j2/a
# Cycles : 0 - 200
# Passes : 1 - 254
#
# Output columns:
# ( 1) date [YYMMDD]
# ( 2) nr of measurements
# ( 3) mean time [seconds since 1985-01-01]
# ( 4- 5) mean and stddev of sea level anomaly [m]
080712 2 742440341. 0.02870 0.02390
080712 2 742440344. 0.05075 0.01633
080712 2 742440346. 0.09745 0.00460
080712 2 742440348. 0.11465 0.04787
080712 2 742440350. 0.15200 0.01923
080712 2 742440353. 0.11400 0.05218
080712 2 742440355. 0.06005 0.08676
080712 2 742440357. 0.04265 0.04688
080712 2 742440359. 0.06660 0.03861
080712 2 742440361. 0.00665 0.04490
080712 2 742440363. 0.00690 0.01400
080712 2 742440365. -0.05980 0.03620
080712 2 742440367. -0.05140 0.02715
080712 2 742440369. -0.09355 0.08309
080712 2 742440371. -0.07850 0.03592
080712 2 742440373. -0.01895 0.06470
080712 2 742440375. -0.01825 0.02496
080712 2 742440377. -0.02605 0.03585
080712 2 742440379. -0.03225 0.04405
Original issue reported on code.google.com by [email protected]
on 6 Feb 2013 at 7:28
As reported by Joana Fernandes:
On the SARAL and CryoSat-2 data the height reduction over the Caspian is not
done, i.e., there is no reduction to a constant -27 m.
The error has already been found in all three programs: rads_gen_ecmwf.f90,
rads_gen_era.f90, and rads_gen_ncep.f90. The switch on whether the data is over
the Caspian is wrong. Were it says surface_type > 2.5, it should have been <
2.5.
This will require fixing the code and a rerun of those programs on all SARAL
and CS2 data.
Original issue reported on code.google.com by [email protected]
on 1 Oct 2013 at 4:08
What steps will reproduce the problem?
radscolin4 -d -Sj1 -C240 -Vsla
What is the expected output? What do you see instead?
# Pass = 0001
# Satellite =
# Cycles =
#
# Column ranges for each variable:
# 1 - 0 : sea level anomaly [m]
# 1 : number of measurements
# 2 : record number
#
At line 430 of file radscolin.f90 (unit = 6, file = 'stdout')
Fortran runtime error: Expected P edit descriptor in format
(f8.4, -1(1x,f8.4))
Original issue reported on code.google.com by [email protected]
on 19 Mar 2013 at 5:09
Example in r166
radsxogen -Sj1 -C382 (crashes with Segfault)
radsxogen -Sj1c -C382 (works)
Seems to be unique to j1
radsxogen -Se1 -C20 (works)
radsxogen -Se1 -C106 (works)
Original issue reported on code.google.com by [email protected]
on 19 Jun 2012 at 2:07
GMT embeds the command line used into the metadata. It's imperfect in GMT,
especially when stdin is piped into a GMT command and that part of the line
isn't recorded.
Similarly, it would be useful if the RADS command line was reported to stderr
in rads4asc, stdout in radsstat, and into the NetCDF or ascii for rads2grd.
It's not perfect -- it wouldn't keep a record of the xml used, but that could
be left to a user to archive if necessary.
Original issue reported on code.google.com by [email protected]
on 14 Jun 2012 at 11:02
What steps will reproduce the problem?
rads2grd4 -Sj2 -C300 --x=0,10
What is the expected output?
Expect --x to be interpreted as a limit
What do you see instead?
This error message:
rads2grd4: Requested XML file 0,10 does not exist in current directory,
rads2grd4: nor in /Volumes/rads/data/conf, nor in /Users/leuliett/.rads
Original issue reported on code.google.com by [email protected]
on 19 Aug 2013 at 6:00
What steps will reproduce the problem?
1. radsstat4 -c sat=j2 sel=17 cycle=1,10
What is the expected output? What do you see instead?
Expected:
0 080704 418230 742110750. 2.6147 1.7131
1 080712 549507 742882560. 2.6839 1.7630
2 080721 575711 743725413. 2.7283 1.7680
3 080731 556931 744587232. 2.4203 1.6236
4 080810 572162 745438605. 2.6272 1.7385
5 080820 548914 746287966. 2.4777 1.6391
6 080830 566845 747150547. 2.7568 1.8056
7 080909 563671 748009283. 2.4719 1.6152
8 080919 571703 748865148. 2.6497 1.7674
9 080929 572229 749721091. 2.5959 1.7226
10 081009 572049 750578245. 2.6746 1.7228
Seen:
1 110321 549507 742886278. 2.8578 1.9003
2 080721 575711 743726566. 2.8302 1.9088
3 080731 556931 744589453. 2.5135 1.7947
4 080810 572162 745441105. 2.8923 1.9094
5 080820 548914 746288737. 2.5602 1.7713
6 080830 566845 747153393. 2.9016 1.9769
7 080909 563671 748011679. 2.5411 1.7550
8 080919 571703 748868469. 2.7452 1.8716
9 080929 572229 749722647. 2.8007 1.8449
10 081009 572049 750580774. 2.7791 1.8419
Please provide any additional information below.
Output different for daily, cycle, or pass and for all weights.
Original issue reported on code.google.com by [email protected]
on 5 Jun 2012 at 7:34
Please describe what type of enhancement is requested.
A utility that prints the available variables for a satellite/phase and cycle.
For example,
radsvar -Sj2/a -C140 would print:
time = 101
lat = 201
lon = 301
alt_eiggl04s = 414
alt_rate = 501
range_ku = 601
range_c = 602
dry_tropo_ecmwf = 701
wet_tropo_rad = 801
wet_tropo_ecmwf = 802
iono_alt = 901
iono_gim = 906
inv_bar_static = 1002
inv_bar_mog2d = 1004
ssb_cls = 1502
swh_ku = 1701
swh_c = 1702
sig0_ku = 1801
sig0_c = 1802
wind_speed_alt = 1901
wind_speed_rad = 1902
wind_speed_ecmwf_u = 1903
wind_speed_ecmwf_v = 1904
range_rms_ku = 2002
range_rms_c = 2004
range_numval_ku = 2101
range_numval_c = 2102
topo_dtm2000 = 2202
tb_187 = 2301
tb_238 = 2302
tb_340 = 2303
flags = 2601
swh_rms_ku = 2802
swh_rms_c = 2804
sig0_rms_ku = 2902
sig0_rms_c = 2904
off_nadir_angle2_wf_ku = 3002
dsig0_atmos_ku = 3203
dsig0_atmos_c = 3204
liquid_water = 3301
iono_iri2007 = 907
iono_nic09 = 908
dist_coast = 4501
inv_bar_mog2d_mean = 1005
mss_cls01 = 1605
mss_cnescls11 = 1615
geoid_egm2008 = 1610
mss_egm2008 = 1611
mss_dnsc08 = 1612
topo_dnsc08 = 2203
mss_dtu10 = 1614
topo_dtu10 = 2205
basin = 3601
tide_pole = 1401
tide_solid = 1101
tide_ocean_fes04 = 1213
tide_load_fes04 = 1313
tide_ocean_got47 = 1217
tide_load_got47 = 1317
tide_ocean_got48 = 1219
tide_load_got48 = 1319
tide_ocean_got49 = 1221
tide_load_got49 = 1321
tide_equil = 3901
tide_non_equil = 3902
tide_ocean_webtide = 1215
ref_frame_offset = 3801
seaice_conc = 4701
sst = 4801
sst_mean = 4802
dry_tropo_ncep = 702
wet_tropo_ncep = 803
dry_tropo_airtide = 4901
iono_alt_smooth = 903
inv_bar_global = 1003
Original issue reported on code.google.com by [email protected]
on 6 Jul 2012 at 3:40
The option -X can already be used to configure mostly anything. This, however,
can only be done at the user level.
If we expand -X to also look in the $RADSROOT/conf directory, then we can
supply a number of handy "presets". Like one that would not use the inverse
barometer correction, or only the model wet tropo, etc.
Original issue reported on code.google.com by [email protected]
on 13 Jun 2012 at 3:30
1. Provide more interpolation options to radsxogen
- linear fit
- nearest neighbour
- allow to reduce/increase number of points (from 6)
- allow to modify maximum gap
2. Replace current old interpolation routines (spaghetti code)
Original issue reported on code.google.com by [email protected]
on 18 Jun 2012 at 2:11
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🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.