3D Visualisation
Doing 3D numerical experiments, an important part of the data analysis is to
understand the structural changes that takes place. This can only be archived
by visualise the data in different ways. Many of the traditional ways of doing
this requires that the 3D objects may be rotated in real time on a computer
screen. Commercial software for doing this is available from different vendors
(NAG, IDL, AVS..). But how do you represent 3D structures in still images? A few
different method are possible. We have investigated two of these methods. Namely
Anaglyphing (1) and Chromo-stereocopy (2).
Both methods requires the spectator to use special
glasses. (1) compose two images with slightly different view angle as a red + a
green super imposed image. (2) utilises the difference in the diffraction of
light of different wave lengths to create the illusion of 3D when a special colour
table is used to colour code the distance of the surface of the 3D structure.
Examples of the two methods and comparisons of with traditional shading methods
are show here.
Papers
- Visualization of three dimensional datasets, Solar Physics, 181, 87-90 1998
- On the visualization of three dimensional datasets Solar Physics, 183, 445, 1998
Last updated 14.06.00