Rank: 63 based on 795 downloads (last 30 days) and 22 files submitted
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François Beauducel

E-mail
Company/University
Institut de Physique du Globe de Paris
Lat/Long
48.844837, 2.356283

Personal Profile:

I started using Matlab in 1991 (v3.0).

Professional Interests:
geophysics, volcanology, seismology, modelling, signal processing, ground deformation, mapping, graphics

 

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Files Posted by François View all
Updated   File Tags Downloads
(last 30 days)
Comments Rating
09 Sep 2014 Screenshot READHGT: Import/download NASA SRTM data files (.HGT) Imports or download SRTM worldwide digital elevation model data files. Author: François Beauducel earth science, digital elevation mod..., mapping, geography, cartography 134 10
  • 4.875
4.9 | 8 ratings
09 Sep 2014 Screenshot DEM: Shaded relief image plot (digital elevation model) Pretty shaded relief map as flat image. Author: François Beauducel earth science, digital elevation mod..., mapping 86 8
  • 4.85714
4.9 | 7 ratings
26 Aug 2014 LL2UTM and UTM2LL Latitude/longitude to and from UTM coordinates precise and vectorized conversion. Author: François Beauducel geodesy, coordinates system, mapping, cartography, convert 59 2
  • 4.5
4.5 | 2 ratings
01 Jul 2014 Screenshot Read and write multiplexed miniSEED file Imports and exports data files in seismological format "mini-SEED" Author: François Beauducel geophysics, seismology, data import, seed, miniseed, mseed 73 7
  • 5.0
5.0 | 7 ratings
28 May 2014 Screenshot Okada: Surface deformation due to a finite rectangular source Computes Okada's 1985 solution for displacements, tilts and strains due to fault dislocation. Author: François Beauducel deformation, elastic, fault, earthquake, modelling, displacements 43 3
  • 5.0
5.0 | 4 ratings
Comments and Ratings by François View all
Updated File Comments Rating
09 Sep 2014 READHGT: Import/download NASA SRTM data files (.HGT) Imports or download SRTM worldwide digital elevation model data files. Author: François Beauducel

Dear John,
Yes, you missed the required version of Matlab (2014a) which contains a new function "strjoin".
I just updated the script to improve compatibility with older versions of Matlab. Please let me know.
François.

29 Aug 2014 Read and write multiplexed miniSEED file Imports and exports data files in seismological format "mini-SEED" Author: François Beauducel

Thanks Dicky,
The time vector is in datenum Matlab format (see datenum for description). You must apply the command:

datetick('x')

after plotting the data to have time labels (see datetick function).

26 Jul 2014 READHGT: Import/download NASA SRTM data files (.HGT) Imports or download SRTM worldwide digital elevation model data files. Author: François Beauducel

thanks Daniel.

31 May 2014 Read and write multiplexed miniSEED file Imports and exports data files in seismological format "mini-SEED" Author: François Beauducel

The problem detected by Robert is solved. Number of plotted channels in multiplexed files is now limited to 20 subplots, with a warning message. For larger number of channels, please use the functional form [X,I]=rdmseed(...) to load and plot what you want (see help).

28 Feb 2014 LL2UTM and UTM2LL Latitude/longitude to and from UTM coordinates precise and vectorized conversion. Author: François Beauducel

This vectorized version of lat/lon vs UTM coordinates conversion may help users to deal with huge grids like digital elevation models, where others functions fail or take infinite time.

Comments and Ratings on François' Files View all
Updated File Comment by Comments Rating
09 Sep 2014 READHGT: Import/download NASA SRTM data files (.HGT) Imports or download SRTM worldwide digital elevation model data files. Author: François Beauducel Beauducel, François

Dear John,
Yes, you missed the required version of Matlab (2014a) which contains a new function "strjoin".
I just updated the script to improve compatibility with older versions of Matlab. Please let me know.
François.

08 Sep 2014 READHGT: Import/download NASA SRTM data files (.HGT) Imports or download SRTM worldwide digital elevation model data files. Author: François Beauducel John

This seems to be a great tool, but I am having issues getting it to work properly. I've tried many of the examples from the help. All of them are returned with:

Undefined function 'strjoin' for input arguments of type 'cell'.

Error in dem>checkparam (line 976)
mes = sprintf('%s (%s)',mes,strjoin(val,' or '));

Error in dem (line 415)
[s,axeq] = checkparam(varargin,'axisequal',@ischar,{'auto','manual','off'});

Error in readhgt>fplot (line 395)
dem(x,y,z,demoptions{:})

Error in readhgt (line 350)
fplot(Y.lon,Y.lat,Y.z,decim,url,novalue)

Is there something I am missing?

29 Aug 2014 Read and write multiplexed miniSEED file Imports and exports data files in seismological format "mini-SEED" Author: François Beauducel Dicky

I am sorry, it is my bad. I just realize that it is not same value. it is date vector / datenum. Thank you very much.

29 Aug 2014 Read and write multiplexed miniSEED file Imports and exports data files in seismological format "mini-SEED" Author: François Beauducel Beauducel, François

Thanks Dicky,
The time vector is in datenum Matlab format (see datenum for description). You must apply the command:

datetick('x')

after plotting the data to have time labels (see datetick function).

29 Aug 2014 Read and write multiplexed miniSEED file Imports and exports data files in seismological format "mini-SEED" Author: François Beauducel Dicky

Hi. Very good work. I've tried with my file and it was plotted very good. But I encounter problem here. The x-axis in the figure show the right label, but in the time vector variable show N-sample by 1 matrix with the same value which is 7.4e5. I try another encoding format but still the same. Do you have any suggestion? Thank you very much.

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