pole figure rotations

[Abhishek Ghosh]

Hello, I am a user of MTEX toolbox (the Matlab toolbox for quantitative texture analysis) . I  have Pole Figure Data from an ODF data. I want to construct the (111) pole figure on ZX plane, but I only obtained on XY plane. what must I do to obtain (111) pole figure on ZX plane? In this case, will ODF change in ZX plane compared to XY plane?

[Rüdiger Kilian]

Hi,
did you calculate the polefigure data using calcPoleFigure?

You can rotate the polefigure using rotate e.g.

cs=crystalSymmetry('432')
o=orientation('Euler',[30,0,0]*degree,cs)
odf=unimodalODF(o)
m=Miller(1,1,1,cs)
pf=calcPoleFigure(odf,m)
r=rotation('axis',xvector,'angle',90*degree)
pfr=rotate(pf,r)
lf=newMtexFigure
plot(pf,'parent',lf.gca)
lf.currentAxes.Title.String=[lf.currentAxes.Title.String ' original']
plot(pfr,'parent',lf.nextAxis)
lf.currentAxes.Title.String=[lf.currentAxes.Title.String ' rotated']
lf.drawNow

This obviously doesn't do anything to the odf but the displayed plane will still be the x,y plane, annotations of the plot won't change, nor the reference frame, however the simulated polefigure is rotated by 90 degree around x. You also rotate the odf using rotate as well, so it will match the data.

I hope this helps,
Rüdiger

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From: mtex...@googlegroups.com [mtex...@googlegroups.com] on behalf of Abhishek Ghosh [abhishe...@gmail.com]
Sent: Tuesday, June 14, 2016 3:07 PM
To: MTEX
Subject: {MTEX} pole figure rotations

Hello, I am a user of MTEX toolbox (the Matlab toolbox for quantitative texture analysis) . I  have Pole Figure Data from an ODF data. I want to construct the (111) pole figure on ZX plane, but I only obtained on XY plane. what must I do to obtain (111) pole figure on ZX plane? In this case, will ODF change in ZX plane compared to XY plane?

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[Abhishek Ghosh]

Dear Rüdiger,

It doesn't work. I used followings codes-

rot = rotation('axis',zvector,'angle',90*degree);

rot = rotation('axis',yvector,'angle',90*degree);

rpf = rotate(pf,r);

plot(rpf);

odf=calcODF(rpf)

plotpdf(odf,[Miller(1,1,1)],'angle','contourf','complete','antipodal','minmax','off')

plot(odf,'phi2',[0 45]*degree,'projection','plain','grey','contourf');

Please comment on this. 

Thanks,

Abhishek Ghosh

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[Abhishek Ghosh]

Dear Rüdiger,

It doesn't work. I used followings codes-

rot = rotation('axis',zvector,'angle',90*degree);

rot = rotation('axis',yvector,'angle',90*degree);

rpf = rotate(pf,r);

plot(rpf);

odf=calcODF(rpf)

plotpdf(odf,[Miller(1,1,1)],'angle','contourf','complete','antipodal','minmax','off')

plot(odf,'phi2',[0 45]*degree,'projection','plain','grey','contourf');

Please comment on this. 

Thanks,

Abhishek Ghosh

[Rüdiger Kilian]

Hi Abhishek,
can you please elaborate a little more detailed what exactly doesn't work for you?

With respect to the lines you posted: the second rot overrides the first one, plotpdf is plotPDF, the Miller definition needs a crystal symmetry, the option 'angle' probably doesn't do anything.

Cheers,
Rüdiger

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From: mtex...@googlegroups.com [mtex...@googlegroups.com] on behalf of Abhishek Ghosh [abhishe...@gmail.com]

Sent: Wednesday, June 15, 2016 10:04 PM
To: MTEX
Subject: {MTEX} Re: pole figure rotations

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