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#pragma once
#include <pcl/surface/on_nurbs/nurbs_data.h>
#include <pcl/surface/3rdparty/opennurbs/opennurbs.h>
#undef Success
namespace pcl
{
namespace on_nurbs
{
enum
{
NORTH = 1, NORTHEAST = 2, EAST = 3, SOUTHEAST = 4, SOUTH = 5, SOUTHWEST = 6, WEST = 7, NORTHWEST = 8
};
/** \brief Some useful tools for initialization, point search, ... */
class NurbsTools
{
public:
// static std::list<unsigned>
// getClosestPoints (const Eigen::Vector2d &p, const vector_vec2d &data, unsigned s);
/** \brief Get the closest point with respect to 'point'
* \param[in] point The point to which the closest point is searched for.
* \param[in] data Vector containing the set of points for searching. */
static unsigned
getClosestPoint (const Eigen::Vector2d &point, const vector_vec2d &data);
/** \brief Get the closest point with respect to 'point'
* \param[in] point The point to which the closest point is searched for.
* \param[in] data Vector containing the set of points for searching. */
static unsigned
getClosestPoint (const Eigen::Vector3d &point, const vector_vec3d &data);
/** \brief Get the closest point with respect to 'point' in Non-Euclidean metric
* \brief Related paper: TODO
* \param[in] point The point to which the closest point is searched for.
* \param[in] dir The direction defining 'inside' and 'outside'
* \param[in] data Vector containing the set of points for searching.
* \param[out] idxcp Closest point with respect to Euclidean metric. */
static unsigned
getClosestPoint (const Eigen::Vector2d &point, const Eigen::Vector2d &dir, const vector_vec2d &data,
unsigned &idxcp);
/** \brief Compute the mean of a set of points
* \param[in] data Set of points. */
static Eigen::Vector3d
computeMean (const vector_vec3d &data);
/** \brief Compute the mean of a set of points
* \param[in] data Set of points. */
static Eigen::Vector2d
computeMean (const vector_vec2d &data);
/** \brief Compute the variance of a set of points
* \param[in] data Set of points */
static Eigen::Vector3d
computeVariance (const Eigen::Vector3d &mean, const vector_vec3d &data);
/** \brief Compute the variance of a set of points
* \param[in] data Set of points */
static Eigen::Vector2d
computeVariance (const Eigen::Vector2d &mean, const vector_vec2d &data);
/** compute bounding box of curve control points */
static void
computeBoundingBox (const ON_NurbsCurve &nurbs, Eigen::Vector3d &_min, Eigen::Vector3d &_max);
static void
computeBoundingBox (const ON_NurbsSurface &nurbs, Eigen::Vector3d &_min, Eigen::Vector3d &_max);
static double
computeRScale (const Eigen::Vector3d &_min, const Eigen::Vector3d &_max);
/** \brief PCA - principal-component-analysis
* \param[in] data Set of points.
* \param[out] mean The mean of the set of points.
* \param[out] eigenvectors Matrix containing column-wise the eigenvectors of the set of points.
* \param[out] eigenvalues The eigenvalues of the set of points with respect to the eigenvectors. */
static void
pca (const vector_vec3d &data, Eigen::Vector3d &mean, Eigen::Matrix3d &eigenvectors,
Eigen::Vector3d &eigenvalues);
/** \brief PCA - principal-component-analysis
* \param[in] data Set of points.
* \param[out] mean The mean of the set of points.
* \param[out] eigenvectors Matrix containing column-wise the eigenvectors of the set of points.
* \param[out] eigenvalues The eigenvalues of the set of points with respect to the eigenvectors. */
static void
pca (const vector_vec2d &data, Eigen::Vector2d &mean, Eigen::Matrix2d &eigenvectors,
Eigen::Vector2d &eigenvalues);
/** \brief Downsample data points to a certain size.
* \param[in] data1 The original set of points.
* \param[out] data2 The downsampled set of points of size 'size'.
* \param[in] size The desired size of the resulting set of points. */
static void
downsample_random (const vector_vec3d &data1, vector_vec3d &data2, unsigned size);
/** \brief Downsample data points to a certain size.
* \param[in/out] data1 The set of points for downsampling;
* will be replaced by the resulting set of points of size 'size'.
* \param[in] size The desired size of the resulting set of points. */
static void
downsample_random (vector_vec3d &data1, unsigned size);
};
}
}