cloudViewer::CCMiscTools Class Reference

Miscellaneous useful functions (geometrical elements handling) More...

#include <CVMiscTools.h>

Inheritance diagram for cloudViewer::CCMiscTools:

Collaboration diagram for cloudViewer::CCMiscTools:

Static Public Member Functions
static void	EnlargeBox (CCVector3 &dimMin, CCVector3 &dimMax, double coef)
	Proportionally enlarges a 3D box. More...
static void	MakeMinAndMaxCubical (CCVector3 &dimMin, CCVector3 &dimMax, double enlargeFactor=0.01)
	Transforms a 3D box into a 3D cube. More...
static void	ComputeBaseVectors (const CCVector3 &N, CCVector3 &X, CCVector3 &Y)
	Computes base vectors for a given 3D plane. More...
static void	ComputeBaseVectors (const CCVector3d &N, CCVector3d &X, CCVector3d &Y)
	Computes base vectors for a given 3D plane - double version. More...
static bool	TriBoxOverlap (const CCVector3 &boxcenter, const CCVector3 &boxhalfsize, const CCVector3 *triverts[3])
	Ovelap test between a 3D box and a triangle. More...
static bool	TriBoxOverlapd (const CCVector3d &boxcenter, const CCVector3d &boxhalfsize, const CCVector3d triverts[3])
	Ovelap test between a 3D box and a triangle (double version) More...

Detailed Description

Miscellaneous useful functions (geometrical elements handling)

Definition at line 16 of file CVMiscTools.h.

Member Function Documentation

ComputeBaseVectors() [1/2]

void CCMiscTools::ComputeBaseVectors ( const CCVector3 &  N, CCVector3 &  X, CCVector3 &  Y  )

static

Computes base vectors for a given 3D plane.

Determines at least two orthogonal vectors perpendicular to a third one

Parameters

[in]	N	a non null vector
[out]	X	the first vector (a 3 coordinates array to be updated by the algorithm)
[out]	Y	the second vector (a 3 coordinates array to be updated by the algorithm)

Definition at line 370 of file CVMiscTools.cpp.

References Vector3Tpl< Type >::cross(), Vector3Tpl< Type >::normalize(), Vector3Tpl< Type >::orthogonal(), and X.

Referenced by ccDBRoot::alignCameraWithEntity(), define_CCMiscTools(), and cloudViewer::Neighbourhood::projectPointsOn2DPlane().

ComputeBaseVectors() [2/2]

void CCMiscTools::ComputeBaseVectors ( const CCVector3d &  N, CCVector3d &  X, CCVector3d &  Y  )

static

Computes base vectors for a given 3D plane - double version.

Determines at least two orthogonal vectors perpendicular to a third one

Parameters

[in]	N	a non null vector
[out]	X	the first vector (a 3 coordinates array to be updated by the algorithm)
[out]	Y	the second vector (a 3 coordinates array to be updated by the algorithm)

Definition at line 384 of file CVMiscTools.cpp.

References Vector3Tpl< Type >::cross(), Vector3Tpl< Type >::normalize(), Vector3Tpl< Type >::orthogonal(), and X.

EnlargeBox()

void CCMiscTools::EnlargeBox ( CCVector3 &  dimMin, CCVector3 &  dimMax, double  coef  )

static

Proportionally enlarges a 3D box.

Parameters

dimMin	the upper-left corner of the box
dimMax	the lower-right corner of the box
coef	the enlargement coefficient (1.1 <-> +10%)

Definition at line 114 of file CVMiscTools.cpp.

Referenced by define_CCMiscTools().

MakeMinAndMaxCubical()

void CCMiscTools::MakeMinAndMaxCubical ( CCVector3 &  dimMin, CCVector3 &  dimMax, double  enlargeFactor = 0.01  )

static

Transforms a 3D box into a 3D cube.

The cube dimensions will be equal to the largest box dimension.

Parameters

dimMin	the upper-left corner of the rectangle
dimMax	the lower-right corner of the rectangle
enlargeFactor	the resulting box can be automatically enlarged if this parameter is greater than 0

Definition at line 88 of file CVMiscTools.cpp.

References max(), Tuple3Tpl< Type >::x, Tuple3Tpl< Type >::y, and Tuple3Tpl< Type >::z.

Referenced by cloudViewer::DistanceComputationTools::computeCloud2MeshDistances(), define_CCMiscTools(), cloudViewer::DistanceComputationTools::synchronizeOctrees(), and cloudViewer::DgmOctree::updateMinAndMaxTables().

TriBoxOverlap()

bool CCMiscTools::TriBoxOverlap ( const CCVector3 &  boxcenter, const CCVector3 &  boxhalfsize, const CCVector3 *  triverts[3]  )

static

Ovelap test between a 3D box and a triangle.

Parameters

boxcenter	the box center
boxhalfsize	the box half dimensions
triverts	the 3 triangle vertices

Returns

true if the input box and triangle overlap, false otherwise

Definition at line 127 of file CVMiscTools.cpp.

References abs(), AXISTEST_X01, AXISTEST_X2, AXISTEST_Y02, AXISTEST_Y1, AXISTEST_Z0, AXISTEST_Z12, FINDMINMAX, Tuple3Tpl< Type >::u, Vector3Tpl< PointCoordinateType >::vcross(), Vector3Tpl< PointCoordinateType >::vdot(), Vector3Tpl< PointCoordinateType >::vsubstract(), Tuple3Tpl< Type >::x, Tuple3Tpl< Type >::y, and Tuple3Tpl< Type >::z.

Referenced by qVoxFallProcess::Compute(), define_CCMiscTools(), cloudViewer::DistanceComputationTools::intersectMeshWithOctree(), and cloudViewer::Grid3D< Type >::intersectWith().

TriBoxOverlapd()

bool CCMiscTools::TriBoxOverlapd ( const CCVector3d &  boxcenter, const CCVector3d &  boxhalfsize, const CCVector3d  triverts[3]  )

static

Ovelap test between a 3D box and a triangle (double version)

Parameters

boxcenter	the box center
boxhalfsize	the box half dimensions
triverts	the 3 triangle vertices

Returns

true if the input box and triangle overlap, false otherwise

Definition at line 249 of file CVMiscTools.cpp.

References abs(), AXISTEST_X01, AXISTEST_X2, AXISTEST_Y02, AXISTEST_Y1, AXISTEST_Z0, AXISTEST_Z12, FINDMINMAX, Tuple3Tpl< Type >::u, Vector3Tpl< double >::vcross(), Vector3Tpl< double >::vdot(), Vector3Tpl< double >::vsubstract(), Tuple3Tpl< Type >::x, Tuple3Tpl< Type >::y, and Tuple3Tpl< Type >::z.

Referenced by define_CCMiscTools(), and cloudViewer::ManualSegmentationTools::segmentMeshWithAABox().

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

• /root/ACloudViewer/core/include/CVMiscTools.h
• /root/ACloudViewer/core/src/CVMiscTools.cpp