Pole intensities vs angular co-ordinates plot

[rrkamath]

Hi all,

I wanted to plot the intensity of a pole figure versus the angular co-ordinates to plot the upper hemisphere as a "normal graph" (using plot3d) instead of it being a hemisphere.

Could you please help me in this regard ? Thanks !

Best
Rakesh

[ralfHielscher]

I do not really understand how you want to plot, but maybe

plot(pf,'3d')

or

plot(pf,'contourf')

give you what you want.

Ralf.

[rrkamath]

Hi Ralf,

My bad, i'll try to put it in a different way. I wanted to extract the angular co-ordinates and corresponding pole intensities from the pf so that I can plot pole intensities v/s angular co-ordinates in rectangular co-ordinates (unlike the polar coordinates in a pf). How can I do that ?

Rakesh

[ralfHielscher]

How about this:

theta = pf.r.theta ./ degree;
rho = pf.r.rho ./ degree;

scatter(theta(:), rho(:), 20, pf.intensities(:))

Ralf.

[rrkamath]

I tried the same and got the following error:

Error using scatter (line 110)
CData must be an RGB triplet, an M-by-1 vector of the same length as X, or an M-by-3 matrix.

Error in L1_9_BCC (line 136)
scatter(theta(:), rho(:), 20, pf.intensities)

I also noticed that pf.r.rho and pf.r.theta (1368X11) have different dimensions compared to pf.intensities (18X836). Do you think that is the problem ?

Rakesh

[ralfHielscher]

You are right, I updated my answer accordingly.

[rrkamath]

Thanks Ralf. That worked.

I had a short follow-up question: What angles do theta and rho denote ? Is theta the azimuthal and rho the tilt ?

[ralfHielscher]

It is the other way round. Ralf. ******************************************************************** Ralf Hielscher Tel: +371-531-38556 Fakultät für Mathematik +371-531-22200 (Sekr.) Technische Universität Chemnitz Fax: +371-531-22109 Reichenhainer Str. 39 E-mail: [email protected] D-09126 Chemnitz http://www.tu-chemnitz.de/~rahi ********************************************************************

…

On Fri, Oct 30, 2020 at 5:25 PM rrkamath ***@***.***> wrote: Thanks Ralf. That worked. I had a short follow-up question: What angles do theta and rho denote ? Is theta the azimuthal and rho the tilt ? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#554 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACBYJ2MIB6HDCASQE7WRZFDSNLSHTANCNFSM4TE6LC4Q> .

[rrkamath]

Got it ! Thanks.

Rakesh