How can i change/squeeze the IPF color coding?

[Mike S.]

Hi all,

i have a material which i investigate with ebsd measurement. The grains are all oriented near 001, so the IPF map appears nearly completely red.
How can i "squeeze" or change the color coding, so i get a higher resolution of the IPF color coding map?

I want to get an IPF map, which looks like the one i attached as a .jpg file.

What i tried so far is:

oM = ipdfHSVOrientationMapping(ebsd);
% set inversePoleFigureDirection  such that the mean orientation is colorized white
oM.whiteCenter =  vector3d([0 0 1]);
% concentrate the colors around the mean orientation
oM.maxAngle = 12*degree;
% plot the colormap
figure
plot(oM,'resolution', .1*degree)

 

There i get kind of a "color wheel", but i would like to maintain the original color coding, but just "shrink" it.

Many thanks in advance!

Best whishes,
Mike