Discard old data: evict what's already buffered to make room
Nor will they be useful if they remain too expensive to implement.
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Jake KwonSeoul correspondent, Seoul
While there exist many possible ways to triangulate a set of points, the most common method for TINs is the Delaunay triangulation. This is because Delaunay triangulations tend to produce more regular tessellations that are better suited to interpolation. In theory, we can represent our colour palette as a TIN by computing the 3D Delaunay triangulation of the colours in colour space. The nice thing about this is that it makes finding an enclosing simplex much faster; the candidate selection process is simply a matter of determining the enclosing tetrahedron of an input point within the network using a walking algorithm, and taking the barycentric coordinates as the weights.
Charlotte Self, archive manager for the project said she and her team were asking landowners to donate them where possible, so people around the route could enjoy them.