Arcball like 3D figure rotation

Versione 1.0.0.0 (2,24 KB) da Andrea Tagliasacchi
Example that shows how to add arcball control to a 3D window
5.0
(3)
1,9K download
Aggiornato 13 mag 2008

Visualizza la licenza

One of the major drawbacks of matlab is the lack of a way of changing the viewpoint of a 3D mesh using a natural (arcball) interaction.

In this simple function I demonstrate the arcball interaction allowing a 3D sphere to be moved naturally. Run the function and drag and drop with your mouse on the sphere surface.

A very important aspect that you should note is that I am rotating the ACTUAL 3D object instead of the viewpoint.

There is a specific reason for this choice. The OpenGL lighting is linked to the axis in matlab, thus, if you rotate the veiwpoint, the lighting on the mesh surface wouldn't change. On the other hand, if you rotate your object using hgttransoforms you achieve this result.

It is now apparently bug-free :)

Cita come

Andrea Tagliasacchi (2024). Arcball like 3D figure rotation (https://www.mathworks.com/matlabcentral/fileexchange/19760-arcball-like-3d-figure-rotation), MATLAB Central File Exchange. Recuperato .

Compatibilità della release di MATLAB
Creato con R2008a
Compatibile con qualsiasi release
Compatibilità della piattaforma
Windows macOS Linux
Categorie
Scopri di più su Lighting, Transparency, and Shading in Help Center e MATLAB Answers

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Versione Pubblicato Note della release
1.0.0.0

Corrected a bug in the rotation direction update which caused the "bug".

Now it works nicely.