songsenand
/
cgal
mirror of https://github.com/CGAL/cgal
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

explained visual_hull.C plus file format .vsh

This commit is contained in:
Peter Hachenberger 2006-03-16 19:56:00 +00:00
parent 6da8a70a8a
commit 4aa3b68f11
1 changed files with 37 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
Nef_3/demo/Nef_3/README
View File

@ -16,12 +16,47 @@ visualization_SM: This program shows how to display the sphere map of
visualization_SNC: This program shows how to display Nef_polyhedron_3.
The program expects a 3D Nef polyhedron from
----------------- The program expects a 3D Nef polyhedron from
standard in. For example call
./visualization_SNC < visualization_SNC.cin
-----------------
visual_hull: This program computes the visual hull of a 3D Object
----------- photographed by several cameras. Each camera returns
one polygon that resembles the shape of the 3D Object
from the camperas point of view. The visual hull is
an approximation of the original 3D Object. From a
camara photos, we compute a cone that tightly covers
all 3D Objects that could have caused the photographed
shape. The intersection of all cones is the visual hull.
File format .vsh (no comments allowed):
---------------------------------------
<point> \\ minimum and maximum coordinates of
<point> \\ some box enclosing the 3D object.
int \\ number of cameras.
<camera>* \\ position and photo of cameras
camera
------
<point> \\ position of camera.
int \\ number of facet cycles of photo shape
<facet cycle>* \\ cycle data of facet cycles
facet cycle (first one is outer cycle, others bound holes)
-----------
int \\ number of points in the cycle.
<point> \\ points of facet cycle
\\ (must lie in common plane)
point
-----
double double double \\ coordinates of point
cube.off,
visualization_SNC.cin,
visualization_SM.cin: example input file
--------
mpi.vsh: example input file for visual_hull.
------ Call: visual_hull mpi.vsh