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![[Figure 8]](yr5086fig8mag.jpg)
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Figure 8
Schematic of the orientation in space for the latitude, longitude and rotation properties of the shapes in the PyScatman module. A shape model is oriented by setting the direction in space of its main axis. This direction is defined through latitude and longitude parameters, expressed on a reference system where 90° latitude indicates a direction towards the incoming beam and, thus, −90° latitude is towards the detector. The equator of the reference system, at 0° latitude, lies on the plane orthogonal to the beam. Once the shape's main axis is oriented, a rotation is applied to the sample along this axis. Here, the simulated sample reflects Earth's elevation, to highlight the large flexibility that the PyScatman module offers in terms of how to define the target shape. The sample was modeled though an adaptation of ETOPO1 data (Amante & Eakins, 2009  ), here in an exaggerated scale, which provides Earth's elevation as a function of the Earth's coordinates, and simulated by the use of the RadialMap shape model. See Fig. 9 for further details on how to define such a shape. |
![[Figure 8]](yr5086fig8.jpg)
 | JOURNAL OF APPLIED CRYSTALLOGRAPHY |
ISSN: 1600-5767
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