EP SIMULATOR — experimental anatomy renderer, beta 0.3

Anatomy source:
BodyParts3D, © The Database Center for Life Science licensed under
CC Attribution 4.0 International.
https://dbarchive.biosciencedbc.jp/en/bodyparts3d/lic.html
https://creativecommons.org/licenses/by/4.0/

Original dataset: BodyParts3D 4.0, isa_BP3D_4.0_obj_99.zip.
Download: https://dbarchive.biosciencedbc.jp/en/bodyparts3d/download.html
The archive's legacy OBJ comments refer to CC BY-SA 2.1 Japan. The current
official database licence was updated in February 2025 to CC BY 4.0.
No BodyParts3D 5.0 or AngioView geometry, textures, shaders or code is included.

Modifications by EP SIMULATOR:
- Selection/aggregation of the original anatomical parts, coordinate transform
  and export to GLB. Source element IDs and upstream SHA256 are in anatomy.json.
- Relative-density volume rasterised at 3 mm; small gaps closed and densities
  smoothed. Blood pools included in the attenuation volume. The torso is synthetic; pulmonary regions
  are synthetic envelopes constrained by the original rib convex hull with an
  8 mm inward margin, mediastinal exclusion and modelled diaphragm/apex limits.
  They are not original lung meshes or patient CT data. Densities are not calibrated HU.
- Preliminary electrode trajectories and contacts constructed for this preview.
  Coronary-sinus route follows cross-section centres of the source sinus mesh.
  LBBAP target uses opposing RV/LV cavity surfaces. These are illustrative routes,
  not validated implantation targets or a simulation of conduction-system capture.

The visible geometry, volume and projection share millimetre coordinates:
X = patient left; Y = cranial; Z = anterior. This beta uses parallel rays.
The current preview has no cardiac/respiratory motion and does not drive ECG/EGM.

Rendering software: independent EP SIMULATOR implementation using Three.js,
MIT licence, https://github.com/mrdoob/three.js/blob/dev/LICENSE .
CC BY 4.0 material remains available under its applicable licence. Attribution
does not imply endorsement by the original authors.