deformablemesh.geometry

Class BinaryMomentsOfInertia

java.lang.Object

deformablemesh.geometry.BinaryMomentsOfInertia

public class BinaryMomentsOfInertia
extends Object

This class is designed to use the binary representation to calculate the center of mass and moments of inertia Created on 23.08.17.

Constructor Summary

Constructors

Constructor and Description
BinaryMomentsOfInertia(DeformableMesh3D mesh, MeshImageStack stack)

Method Summary

Modifier and Type	Method and Description
double[]	getCenterOfMass() center of mass: c_x = sum_i [x_i m_i] / sum_i [m_i] c_y = sum_i[ y_i m_i] / sum_i [m_i] c_z = sum_i[ z_i m_i] / sum_i [m_i]
List<double[]>	getEigenVectors() Returns the list of eigen vectors, and the eigen values.
double[]	getInertialMatrix() Moments of inertia.
static void	main(String[] args) Create an image and a mesh
double	measureAverageIntensity()
static void	reactangleCheck(String[] args)
static void	twoSphereCheck()
double	volume()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BinaryMomentsOfInertia

public BinaryMomentsOfInertia(DeformableMesh3D mesh,
                              MeshImageStack stack)

Method Detail

getCenterOfMass

public double[] getCenterOfMass()

center of mass: c_x = sum_i [x_i m_i] / sum_i [m_i] c_y = sum_i[ y_i m_i] / sum_i [m_i] c_z = sum_i[ z_i m_i] / sum_i [m_i]

Returns:

{c_x, c_y, c_z}

getInertialMatrix

public double[] getInertialMatrix()

Moments of inertia. Ixx = sum_i [x_ix_im_i]/ sum_i [m_i] Ixy = sum_i [x_iy_im_i]/ sum_i [m_i] Ixz = sum_i [x_iz_im_i]/ sum_i [m_i] Iyx = Ixy Iyy = sum_i [y_iy_im_i]/ sum_i [m_i] Iyz = sum_i [y_iz_im_i]/ sum_i [m_i] Izx = Ixz Izy = Iyz Izz = sum_i [z_iz_im_i]/ sum_i [m_i]

Returns:

{ Ixx, Ixy, Ixz, Iyx, Iyy, Iyz, Izx, Izy, Izz};

getEigenVectors

public List<double[]> getEigenVectors()

Returns the list of eigen vectors, and the eigen values.

Returns:

[ {v1}, {v2}, {v3}, {lambda1, lambda2, lambda3} ]

main

public static void main(String[] args)

Create an image and a mesh

Parameters:

args -

reactangleCheck

public static void reactangleCheck(String[] args)

twoSphereCheck

public static void twoSphereCheck()

measureAverageIntensity

public double measureAverageIntensity()

volume

public double volume()