Scientific blog
April 
Thursday, 9 May, 2013, 11:23
Posted by Piotr Drzymala
We read the value of the orientation distribution function for the three Euler angles is done by finding the nearest corner of the 5x5x5 cube, which is divided into space Euler read with the value (the generated text file). In order to convince themselves of the validity of a decision Eulerization write a function to generate pole figures of imported orientation distribution function. For this purpose a grid-like mesh pole figure equiangular (step 7.5 degree) with a total 471 points and each point (fi, Chi), a discrete list Euler path points to a variable angle of rotation sensor around normal to the diffracting plane. These calculations lasts a little too long, and you should consider what can be improved throughout the algorithm, however, due to their task at the moment is in abeyance. Nevertheless Eulerization helps restore function pole figures in the correct manner, with the proviso that, contrary than you would think, the angle fi runs along the clockwise direction, and not the opposite. It should be noted some confusion and excess Convention, which may complicate the orientation of the sample in the system. Due to the geometry of the goniometer X direction (RD) is directed downwards, and Y (TD) to the left. Meanwhile, the pole figure is shown opposite.
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