Pole Figure Plot for VPSC Texture

[Omar Al-Abri]

Dear Ralf,

Greetings,

I'm trying to plot pole figure of a texture data that have been obtained from VPSC. The format of the data is as follows:

As you may know that the first three columns are the Euler angles. I want to plot a pole figure to show the texture distribution. When I try to import the pole figure data through the import wizard, MTEX is not recognizing the format and a new screen "PoleFigure Generic Interface" comes out to specify how the columns should be interpreted. But, I'm not able to till MTEX that these are the Euler angles. The only options available are: polar angle, azimuth angle, intensity, etc. So, how can I read such format in MTEX?

[Rémy Bretin]

Hello,

I think you should take a look at this https://groups.google.com/forum/#!topic/mtexmail/qGaU4k0JeEc

The correct script for a format file of euler angles written this way :
 293.3005 163.0425  45.7153
 328.8153 113.8247  35.1145
..............................
 100.2594  98.4387 344.7025
 347.3599  28.3704 349.4134

is :

ori = loadOrientation_generic('eugler_File.txt','ColumnNames',{'Euler1','Euler2','Euler3'})

plotIPDF(ori,[xvector,yvector,zvector],'contourf')

[Ralf Hielscher]

Hi Omar Al-Abri,

the answer by Rémy Bretin is correct. The point is that you do not have pole figure data but individual orientations which represent an ODF. If you want to use the import wizard you should select ODF at the top page.

I hope this helps,

Ralf.

[Omar Al-Abri]

Thanks Ralf and Remy,

Can we get the pole figure plot as points instead of contour? like the following picture:

[Italo Persechino]

I usually use 

ebsd = loadEBSD_generic(fname,'ColumnNames',{'Euler1','Euler2','Euler3'},'HEADER',4);

which I think it's better than go through ODF.

That function is specific for importing data from VPSC 

[Omar Al-Abri]

Hi Italo

Thanks for your reply. I tried your suggestion; however, I'm facing a problem with the plotting. I'm trying to plot the angles as markers (as shown in below figure) but without success! 

[Ralf Hielscher]

Maybe thi helps

 http://mtex-toolbox.github.io/files/doc/EBSDOrientationPlots.html

[Italo Persechino]

that is easy:

this is the code I use to plot Inverse pole figures:

%Specify Miller Indice

m1 = Miller(0,0,1,CS);

m2 = Miller(1,0,1,CS);

m3 = Miller(1,1,1,CS);

%Specify vector

v1 = vector3d(1,0,0);

v2 = vector3d(0,1,0);

v3 = vector3d(0,0,1);

%% plot IPF from EBSD discrete

plotIPDF(ebsd.orientations,v1,'MarkerSize',2,'PaperPositionMode','auto')

annotate([Miller(m1),Miller(m2),Miller(m3)],'all','labeled')

try this out for Pole figures, it should work.... I hope :)

[dikai...@sheffield.ac.uk]

Hi Omar,

I am now doing the same job like what you did before. I need to consider the Weight of each orientation when I plot the PF.

Can you share me the code?

If anyone in this group did the similar work before, please help me out

The VPSC texture output file has 4 columns: 

Euler1 Euler2 Euler3 Weights

Thanks very much

Dikai

[ruediger Kilian]

Hi,
did you try something like :
ori = loadOrientation_generic(yourinput,'CS',CS,'SS',SS, 'ColumnNames', {'Euler1' 'Euler2' 'Euler3' 'Weights'},'Columns',[1,2,3,4],'Bunge’)
Cheers,
Rüdiger

On 29 May 2017, at 4:46 pm, <dikai...@sheffield.ac.uk> <dikai...@sheffield.ac.uk> wrote:

> Hi Omar,
>
> I am now doing the same job like what you did before. I need to consider the Weight of each orientation when I plot the PF.
> Can you share me the code?
>
> If anyone in this group did the similar work before, please help me out
>
> The VPSC texture output file has 4 columns:
> Euler1 Euler2 Euler3 Weights
>
> Thanks very much
>
> Dikai
>
> On Saturday, 29 August 2015 12:54:33 UTC+1, Omar Al-Abri wrote:
> Dear Ralf,
>
> Greetings,
>
> I'm trying to plot pole figure of a texture data that have been obtained from VPSC. The format of the data is as follows:
>
>
>
>

> As you may know that the first three columns are the Euler angles. I want to plot a pole figure to show the texture distribution. When I try to import the pole figure data through the import wizard, MTEX is not recognizing the format and a new screen "PoleFigure Generic Interface" comes out to specify how the columns should be interpreted. But, I'm not able to till MTEX that these are the Euler angles. The only options available are: polar angle, azimuth angle, intensity, etc. So, how can I read such format in MTEX?
>
>
>
>

> --
> If you want to reduce the number of emails you get through this forum login to https://groups.google.com/forum/?fromgroups=#!forum/mtexmail, click "My membership" and select "Don't send me email updates". You can still get emails on selected topics by staring them.
> ---
> You received this message because you are subscribed to the Google Groups "MTEX" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to mtexmail+u...@googlegroups.com.
> Visit this group at https://groups.google.com/group/mtexmail.
> For more options, visit https://groups.google.com/d/optout.