Visualizing Three-dimensional Volumetric Data with an Arbitrary Coordinate System Article Swipe
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· 2017
· Open Access
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· DOI: https://doi.org/10.1088/1538-3873/129/972/028002
· OA: W2553738136
Astronomical data does not always use Cartesian coordinates. Both all-sky\nobservational data and simulations of rotationally symmetric systems, such as\naccretion and protoplanetary discs, may use spherical polar or other coordinate\nsystems. Standard displays rely on Cartesian coordinates, but converting\nnon-Cartesian data into Cartesian format causes distortion of the data and loss\nof detail. I here demonstrate a method using standard techniques from computer\ngraphics that avoids these problems with 3D data in arbitrary coordinate\nsystems. The method adds minimum computational cost to the display process and\nis suitable for both realtime, interactive content and producing fixed rendered\nimages and videos. Proof-of-concept code is provided which works for data in\nspherical polar coordinates.\n
