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Added spline interpolation with pre-defined knot parameters.

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This commit is contained in:
Hauke Heibel
2012-04-13 12:50:05 +02:00
parent f6a5508392
commit 84c93b048e
2 changed files with 53 additions and 13 deletions
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26
unsupported/test/splines.cpp
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@@ -216,16 +216,32 @@ void check_global_interpolation2d()
typedef Spline2d::ControlPointVectorType ControlPointVectorType;
ControlPointVectorType points = ControlPointVectorType::Random(2,100);
const Spline2d spline = SplineFitting<Spline2d>::Interpolate(points,3);
KnotVectorType chord_lengths; // knot parameters
Eigen::ChordLengths(points, chord_lengths);
for (Eigen::DenseIndex i=0; i<points.cols(); ++i)
// interpolation without knot parameters
{
PointType pt = spline( chord_lengths(i) );
PointType ref = points.col(i);
VERIFY( (pt - ref).matrix().norm() < 1e-14 );
const Spline2d spline = SplineFitting<Spline2d>::Interpolate(points,3);
for (Eigen::DenseIndex i=0; i<points.cols(); ++i)
{
PointType pt = spline( chord_lengths(i) );
PointType ref = points.col(i);
VERIFY( (pt - ref).matrix().norm() < 1e-14 );
}
}
// interpolation with given knot parameters
{
const Spline2d spline = SplineFitting<Spline2d>::Interpolate(points,3,chord_lengths);
for (Eigen::DenseIndex i=0; i<points.cols(); ++i)
{
PointType pt = spline( chord_lengths(i) );
PointType ref = points.col(i);
VERIFY( (pt - ref).matrix().norm() < 1e-14 );
}
}
}