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small speedup of CGAL (according to CGAL tests)

text-module
don bright 2014-01-31 15:22:57 -08:00
parent 9fa66e37c0
commit 0b801fe6e0
1 changed files with 9 additions and 2 deletions
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11
src/grid.h
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@ -11,8 +11,15 @@ typedef __int64 int64_t;
#include <boost/unordered_map.hpp>
#include <utility>
const double GRID_COARSE = 0.001;
const double GRID_FINE = 0.000001;
//const double GRID_COARSE = 0.001;
//const double GRID_FINE = 0.000001;
/* Using decimals that are exactly convertible to binary floating point
(and then converted exactly to a GMPQ Rational that uses a small amount
of bytes aka "limbs" in CGAL's engine) provides at least a 5% speedup
for ctest -R CGAL. We choose 1/1024 and 1/(1024*1024) In python: print
'%.64f' % float(fractions.Fraction(1,1024)) */
const double GRID_COARSE = 0.0009765625;
const double GRID_FINE = 0.00000095367431640625;
template <typename T>
class Grid2d