Rank: 1239 based on 117 downloads (last 30 days) and 2 files submitted
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Grzegorz Kwiatek

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Company/University
GFZ Potsdam

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Professional Interests:
Signal processing, seismology

 

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17 Sep 2013 Screenshot Radiation pattern from shear-tensile seismic source Calculates P, S, SV and SH radiation pattern using shear-tensile seismic source model. Author: Grzegorz Kwiatek radiation pattern, sheartensile source 24 2
  • 5.0
5.0 | 1 rating
22 Nov 2011 DXFLib DXFLib is a library written in MATLAB that allows to create simple AutoCAD DXF files. Author: Grzegorz Kwiatek dxf, 3d, pdf, export, autocad 93 3
  • 4.66667
4.7 | 3 ratings
Comments and Ratings by Grzegorz View all
Updated File Comments Rating
23 Oct 2013 Radiation pattern from shear-tensile seismic source Calculates P, S, SV and SH radiation pattern using shear-tensile seismic source model. Author: Grzegorz Kwiatek

@Michael
Here is a sample script that produces either radiation pattern "flower" or (if you replace scale=abs(GP) with scale=1) something similar to beach ball. Hope it helps!

AZIMUTH = (0:4:360)*pi/180;
TAKEOFF = (0:2:180)*pi/180;
[AZIMUTH,TAKEOFF] = meshgrid(AZIMUTH,TAKEOFF);

strike = 50;
dip = 60;
rake = -90;
sigma = 0.25;
gamma = 0;
[GP, GS, GSH, GSV] = rpgen(strike,dip,rake,gamma,sigma, TAKEOFF*180/pi, AZIMUTH*180/pi);

scale = abs(GP);
YP = scale.*cos(AZIMUTH) .* sin(TAKEOFF);
XP = scale.*sin(AZIMUTH) .* sin(TAKEOFF);
ZP = scale.*-cos(TAKEOFF);

surf(XP,YP,ZP,GP,'EdgeColor','none','FaceAlpha',0.9,'AmbientStrength',0.7,'EdgeColor','k','EdgeAlpha',0.1);
axis equal;

13 Apr 2013 DXFLib DXFLib is a library written in MATLAB that allows to create simple AutoCAD DXF files. Author: Grzegorz Kwiatek

Varun AV, The circles will be incorporated in the next version of DXFLib.

12 Oct 2012 cprintf - display formatted colored text in the Command Window Displays sprintf-formatted strings in the Command Window using the specified color/underline style Author: Yair Altman

Greate submission

12 Oct 2012 cprintf - display formatted colored text in the Command Window Displays sprintf-formatted strings in the Command Window using the specified color/underline style Author: Yair Altman

Great submission.

Comments and Ratings on Grzegorz's Files View all
Updated File Comment by Comments Rating
31 Jul 2014 DXFLib DXFLib is a library written in MATLAB that allows to create simple AutoCAD DXF files. Author: Grzegorz Kwiatek Adalev, Alexei

Very useful, thanks a lot!

29 Oct 2013 Radiation pattern from shear-tensile seismic source Calculates P, S, SV and SH radiation pattern using shear-tensile seismic source model. Author: Grzegorz Kwiatek Michael

23 Oct 2013 Radiation pattern from shear-tensile seismic source Calculates P, S, SV and SH radiation pattern using shear-tensile seismic source model. Author: Grzegorz Kwiatek Kwiatek, Grzegorz

@Michael
Here is a sample script that produces either radiation pattern "flower" or (if you replace scale=abs(GP) with scale=1) something similar to beach ball. Hope it helps!

AZIMUTH = (0:4:360)*pi/180;
TAKEOFF = (0:2:180)*pi/180;
[AZIMUTH,TAKEOFF] = meshgrid(AZIMUTH,TAKEOFF);

strike = 50;
dip = 60;
rake = -90;
sigma = 0.25;
gamma = 0;
[GP, GS, GSH, GSV] = rpgen(strike,dip,rake,gamma,sigma, TAKEOFF*180/pi, AZIMUTH*180/pi);

scale = abs(GP);
YP = scale.*cos(AZIMUTH) .* sin(TAKEOFF);
XP = scale.*sin(AZIMUTH) .* sin(TAKEOFF);
ZP = scale.*-cos(TAKEOFF);

surf(XP,YP,ZP,GP,'EdgeColor','none','FaceAlpha',0.9,'AmbientStrength',0.7,'EdgeColor','k','EdgeAlpha',0.1);
axis equal;

19 Oct 2013 Radiation pattern from shear-tensile seismic source Calculates P, S, SV and SH radiation pattern using shear-tensile seismic source model. Author: Grzegorz Kwiatek Michael

how I plot the radiation patterns after calculating the coefficients?

13 Apr 2013 DXFLib DXFLib is a library written in MATLAB that allows to create simple AutoCAD DXF files. Author: Grzegorz Kwiatek Kwiatek, Grzegorz

Varun AV, The circles will be incorporated in the next version of DXFLib.

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