|
From: Daniel J S. <dan...@ie...> - 2010-12-12 20:02:36
|
Alexandre Felipe wrote: > In Reply to Daniel: > > Hiperplane? i think planes are enough, because any representation will be > 3D, ignoring colors and any extra data, the only thing we do here is copy > that data (and eventually interpolate it as mentioned above). Or we can call > some function which will process the data such as colors. A hyperplane is simply a general method of representing an N-1 dimensioned surface in a N dimensional space. As an example, say we want to represent a line in 2D space. We could pick two points to represent that line. We could use the formula y = mx + b. Or we could represent the line as w'v = b, where w = [1 -m]' and v = [y x]'. Convenience more than anything. > If we concern with the 3D problem i'd discovered fighting with my PC that > matrixe algebra is not the better aproach. It's very good for > transformations, or vectors with to many components, or even dynamic > programming, but for geometric problems is better to use geometric solution. For me, three dimensions is already too many components. :-) Dan |