SPICA: stereographic projection for interactive crystallographic analysis
نویسنده
چکیده
SPICA: stereographic projection for interactive crystallographic analysis" (2016). Author(s) of this paper may load this reprint on their own web site or institutional repository provided that this cover page is retained. Republication of this article or its storage in electronic databases other than as specified above is not permitted without prior permission in writing from the IUCr. SPICA: stereographic projection for interactive crystallographic analysis In numerous research fields, especially the applications of electron and X-ray diffraction, stereographic projection represents a powerful tool for researchers. SPICA is a new computer program for stereographic projection in interactive crystallographic analysis, which inherits features from the previous JECP/SP and includes more functions for extensive crystallographic analysis. SPICA provides fully interactive options for users to plot stereograms of crystal directions and crystal planes, traces, and Kikuchi maps for an arbitrary crystal structure; it can be used to explore the orientation relationships between two crystalline phases with a composite stereogram; it is also used to predict the tilt angles of transmission electron microscopy double-tilt and rotation holders in electron diffraction experiments. In addition, various modules are provided for essential crystallographic calculations.
منابع مشابه
Three - Sphere Rotations and The
We describe decomposition formulas for rotations of R 3 and R 4 that have special properties with respect to stereographic projection. We use the lower dimensional decomposition to analyze stereographic projections of great circles in S 2 R 3. This analysis provides a pattern for our analysis of stereographic projections of the Cliiord torus C S 3 R 4. We use the higher dimensional decompositio...
متن کامل5 O ct 1 99 8 Rotations of the three - sphere and symmetry of the Clifford Torus
We describe decomposition formulas for rotations of R and R that have special properties with respect to stereographic projection. We use the lower dimensional decomposition to analyze stereographic projections of great circles in S ⊂ R. This analysis provides a pattern for our analysis of stereographic projections of the Clifford torus C ⊂ S ⊂ R. We use the higher dimensional decomposition to ...
متن کاملIs Interactivity a Good Thing
This paper investigates whether adding interactivity to diagrammatic representations aids learning. More specifically, the analyses focus on the extent to which 3D interactive diagrams facilitate the comprehension of a geometry concept, the stereographic projection, that is usually taught using 2D diagrams. Four Interactive Learning Environments (ILE) were built in order to test the effectivene...
متن کاملAn Indoor Alternative to Stereographic Spherical Panoramas
The stereographic projection is a popular method for viewing spherical panoramas because of its ability to represent the scene as a “little planet” with a simulated overhead view. However, the stereographic projection does not work well for indoor scenes. In this paper, we present a method for producing a counterpart to the stereographic projection for indoor scenes. The main innovation of our ...
متن کاملWarping Peirce Quincuncial Panoramas
The Peirce quincuncial projection is a mapping of the surface of a sphere to the interior of a square. It is a conformal mapping except for four points on the equator. These points of non-conformality cause significant artifacts in photographic applications. In this paper, we propose an algorithm and userinterface to mitigate these artifacts. Moreover, in order to facilitate an interactive user...
متن کامل