Files
OrcaSlicer/src/libigl/igl/grid_search.cpp
tamasmeszaros 2ae2672ee9 Building igl statically and moving to the dep scripts
Fixing dep build script on Windows and removing some warnings.

Use bundled igl by default.

Not building with the dependency scripts if not explicitly stated. This way, it will stay in
Fix the libigl patch to include C source files in header only mode.
2019-06-19 14:52:55 +02:00

65 lines
2.4 KiB
C++

#include "grid_search.h"
#include <iostream>
#include <cassert>
template <
typename Scalar,
typename DerivedX,
typename DerivedLB,
typename DerivedUB,
typename DerivedI>
IGL_INLINE Scalar igl::grid_search(
const std::function< Scalar (DerivedX &) > f,
const Eigen::MatrixBase<DerivedLB> & LB,
const Eigen::MatrixBase<DerivedUB> & UB,
const Eigen::MatrixBase<DerivedI> & I,
DerivedX & X)
{
Scalar fval = std::numeric_limits<Scalar>::max();
const int dim = LB.size();
assert(UB.size() == dim && "UB should match LB size");
assert(I.size() == dim && "I should match LB size");
X.resize(dim);
// Working X value
DerivedX Xrun(dim);
std::function<void(const int, DerivedX &)> looper;
int calls = 0;
looper = [&](
const int d,
DerivedX & Xrun)
{
assert(d < dim);
Eigen::Matrix<Scalar,Eigen::Dynamic,1> vals =
Eigen::Matrix<Scalar,Eigen::Dynamic,1>::LinSpaced(I(d),LB(d),UB(d));
for(int c = 0;c<I(d);c++)
{
Xrun(d) = vals(c);
if(d+1 < dim)
{
looper(d+1,Xrun);
}else
{
//std::cout<<"call: "<<calls<<std::endl;
// Base case
const Scalar val = f(Xrun);
calls++;
if(val < fval)
{
fval = val;
X = Xrun;
std::cout<<calls<<": "<<fval<<" | "<<X<<std::endl;
}
}
}
};
looper(0,Xrun);
return fval;
}
#ifdef IGL_STATIC_LIBRARY
template double igl::grid_search<double, Eigen::Matrix<double, 1, 3, 1, 1, 3>, Eigen::Matrix<double, 1, 3, 1, 1, 3>, Eigen::Matrix<double, 1, 3, 1, 1, 3>, Eigen::Matrix<int, 1, 3, 1, 1, 3> >(std::function<double (Eigen::Matrix<double, 1, 3, 1, 1, 3>&)>, Eigen::MatrixBase<Eigen::Matrix<double, 1, 3, 1, 1, 3> > const&, Eigen::MatrixBase<Eigen::Matrix<double, 1, 3, 1, 1, 3> > const&, Eigen::MatrixBase<Eigen::Matrix<int, 1, 3, 1, 1, 3> > const&, Eigen::Matrix<double, 1, 3, 1, 1, 3>&);
template float igl::grid_search<float, Eigen::Matrix<float, 1, -1, 1, 1, -1>, Eigen::Matrix<float, 1, -1, 1, 1, -1>, Eigen::Matrix<float, 1, -1, 1, 1, -1>, Eigen::Matrix<int, 1, -1, 1, 1, -1> >(std::function<float (Eigen::Matrix<float, 1, -1, 1, 1, -1>&)>, Eigen::MatrixBase<Eigen::Matrix<float, 1, -1, 1, 1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<float, 1, -1, 1, 1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, 1, -1, 1, 1, -1> > const&, Eigen::Matrix<float, 1, -1, 1, 1, -1>&);
#endif