ON_SubDComponentPoint Class Reference

#include <opennurbs_subd.h>

Public Member Functions
	ON_SubDComponentPoint ()=default
	ON_SubDComponentPoint (const ON_SubDComponentPoint &)=default
	~ON_SubDComponentPoint ()=default
ON_SubDComponentPoint &	operator= (const ON_SubDComponentPoint &)=default

Static Public Member Functions
static const ON_SubDComponentPoint	BestPickPoint (ON_PickType pick_type, double vertex_depth_bias, double edge_depth_bias, const ON_SubDComponentPoint &A, const ON_SubDComponentPoint &B)
static int	CompareComponentAndDirection (const ON_SubDComponentPoint *a, const ON_SubDComponentPoint *b)

Public Attributes
ON_SubDComponentPtr	m_component_ptr = ON_SubDComponentPtr::Null
	m_component_ptr will be face, edge or vertex More...
ON_PickPoint	m_pick_point = ON_PickPoint::Unset

Static Public Attributes
static const ON_SubDComponentPoint	Unset

Detailed Description

ON_SubDComponentPoint

Used in selection tests to return a point and parameters on a component.

Constructor & Destructor Documentation

ON_SubDComponentPoint() [1/2]

ON_SubDComponentPoint::ON_SubDComponentPoint ( )

default

~ON_SubDComponentPoint()

ON_SubDComponentPoint::~ON_SubDComponentPoint ( )

default

ON_SubDComponentPoint() [2/2]

ON_SubDComponentPoint::ON_SubDComponentPoint ( const ON_SubDComponentPoint &  )

default

Member Function Documentation

BestPickPoint()

static const ON_SubDComponentPoint ON_SubDComponentPoint::BestPickPoint ( ON_PickType  pick_type, double  vertex_depth_bias, double  edge_depth_bias, const ON_SubDComponentPoint &  A, const ON_SubDComponentPoint &  B  )

static

Description: Compare the pick events to determine the component the user was most likely aiming at.

Parameters: pick_type - [in] When pick_type is ON_PickType::PointPick, several biases may be applied to favor vertices and edges.

vertex_depth_bias - [in] When in doubt pass 0.0. A positive value increases vertex bias in some situations; otherwise vertex_depth_bias is ignored. When pick_type is ON_PickType::PointPick and either an edge and a vertex of that edge or a face and a vertex of that face are being compared, then then vertex_depth_bias is added to the vertex hit depth before comparing depths. When the pick is happening in a perspective view, it is important to choose a vertex_depth_bias appropriate for the depth in the view frustum.

edge_depth_bias - [in] When in doubt pass 0.0. A positive value increases edge bias in some situations; otherwise vertex_depth_bias is ignored. When pick_type is ON_PickType::PointPick and a face and an edge of that face are being compared, then then edge_depth_bias is added to the edge hit depth before comparing depths. When the pick is happening in a perspective view, it is important to choose an edge_depth_bias appropriate for the depth in the view frustum.

A - [in] B - [in] Returns: A pick point for the component the user was most likely aiming at with distance and depth settings that will lead to conistent improvement if more than two points are being compared.

CompareComponentAndDirection()

static int ON_SubDComponentPoint::CompareComponentAndDirection ( const ON_SubDComponentPoint *  a, const ON_SubDComponentPoint *  b  )

static

Description: Dictionary compare of component type, component pointer, and component direction (partial). This function is useful for sorting arrays of ON_SubDComponentPoint values remove duplicates.

operator=()

ON_SubDComponentPoint& ON_SubDComponentPoint::operator= ( const ON_SubDComponentPoint &  )

default

Member Data Documentation

m_component_ptr

ON_SubDComponentPtr ON_SubDComponentPoint::m_component_ptr = ON_SubDComponentPtr::Null

m_component_ptr will be face, edge or vertex

m_pick_point

ON_PickPoint ON_SubDComponentPoint::m_pick_point = ON_PickPoint::Unset

subfragment corner. unsigned int m_face_corner_index = ON_UNSET_UINT_INDEX; Otherwise the point is on the control net at the specified level. unsigned int m_level_index = ON_UNSET_UINT_INDEX;

Unset

const ON_SubDComponentPoint ON_SubDComponentPoint::Unset

static