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##

Surface Projection

A crucial aspect of the discretization of discrete surfaces is related
to the surface projection. The simple and efficient
algorithms available for the projection to parametric surfaces (see
Table 2) cannot be
adopted simply because of the missing parameterization of the limit
surface. Moreover, the situation is further complicated by the fact
that the normal vector of the limit surface can be exactly evaluated
only at the nodes of the original or refined control grid. Therefore
in order to make the projection sufficiently accurate (in terms of
both the distance from the limit surface and the match with the exact
normal), it is necessary to subdivide the control grid up to a high
level. This results in a huge amount of data to be stored, which is
not acceptable.

**Subsections**

** Next:** Exact Surface Projection
**Up:** Triangulation of Discrete 3D Surfaces
** Previous:** Discrete Surface Meshing
*Daniel Rypl *

2005-12-07