PointCloud Class Reference

A class representing a cloud.of points. More...

#include <PointCloud.h>

Collaboration diagram for PointCloud:

Public Member Functions
	PointCloud ()
Vec3	getCenter ()
void	addPoint (const Vec3 &)
Plane3D	getFitPlane ()

Private Attributes
vector< Vec3 >	m_points

Detailed Description

A class representing a cloud.of points.

Author

Steffen Abe $Revision$ $Date$

Constructor & Destructor Documentation

PointCloud::PointCloud

(

)

construct an empty point cloud - do nothing

Member Function Documentation

void PointCloud::addPoint

(

const Vec3 &

p

)

add a point

Parameters

p	the position of the point

References m_points.

Referenced by fitPlaneToFracture().

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Vec3 PointCloud::getCenter

(

)

calculate center point

References esys::lsm::bpu::iter(), and m_points.

Referenced by getFitPlane().

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Plane3D PointCloud::getFitPlane

(

)

find a plane that best fits the could of points. Algorithm as described in Schneider & Eberly "Geometric Tools for Computer Graphics", pp 884/885, i.e. getting the eigenvectors of a matrix with m_11=(x_i-a)^2 m_12=(x_i-a)(y_i-b) m_13=(x_i-a)(z_i-c) m_22=(y_i-b)^2 m_23=(y_i-b)(z_i-c) m_33=(z_i-c)^2 where (a,b,c) is the center of the cloud

References Matrix3::eigen(), getCenter(), esys::lsm::bpu::iter(), m_points, Vec3::X(), Vec3::Y(), and Vec3::Z().

Referenced by fitPlaneToFracture().

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Member Data Documentation

vector<Vec3> PointCloud::m_points

private

Referenced by addPoint(), getCenter(), and getFitPlane().

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The documentation for this class was generated from the following files:

• Geometry/PointCloud.h
• Geometry/PointCloud.cpp