QRayCasterHit Class

class Qt3DRender ::QRayCasterHit

Details of a hit when casting a ray through a model. 更多...

头: #include <QRayCasterHit>
qmake: QT += 3drender
Since: Qt 5.11

该类在 Qt 5.11 引入。

公共类型

enum HitType { TriangleHit, LineHit, PointHit, EntityHit }

公共函数

float distance () const
Qt3DCore::QEntity * entity () const
Qt3DCore::QNodeId entityId () const
QVector3D localIntersection () const
uint primitiveIndex () const
Qt3DRender::QRayCasterHit::HitType type () const
uint vertex1Index () const
uint vertex2Index () const
uint vertex3Index () const
QVector3D worldIntersection () const

详细描述

Qt3DRender::QRayCasterHit contains the details of a successful hit when casting a ray through a model using a Qt3DRender::QRayCaster or Qt3DRender::QScreenRayCaster 组件。

另请参阅 Qt3DRender::QRayCaster , Qt3DRender::QScreenRayCaster ,和 Qt3DRender::QPickingSettings .

成员类型文档编制

enum QRayCasterHit:: HitType

Specifies type of hit that was returned. This is controlled using QPickingSettings .

常量 描述
Qt3DRender::QRayCasterHit::TriangleHit 0 The picked primitive was a triangle and the vertex indices refer to the three points making up the triangle
Qt3DRender::QRayCasterHit::LineHit 1 The picked primitive was a line segment, and the first two vertices refer to the two points making up the line
Qt3DRender::QRayCasterHit::PointHit 2 The picked primitive was a single point; all 3 vertex indices will be undefined
Qt3DRender::QRayCasterHit::EntityHit 3 Only the bounding volume was considered; the primitive and vertex indices will be undefined

成员函数文档编制

float QRayCasterHit:: distance () const

Returns the distance between the origin of the ray and the intersection point

Qt3DCore::QEntity *QRayCasterHit:: entity () const

Returns a pointer to the entity that was hit

Qt3DCore::QNodeId QRayCasterHit:: entityId () const

Returns the id of the entity that was hit

QVector3D QRayCasterHit:: localIntersection () const

Returns the coordinates of the intersection point in the entity's coordinate system

uint QRayCasterHit:: primitiveIndex () const

Returns the index of the picked primitive

Qt3DRender::QRayCasterHit::HitType QRayCasterHit:: type () const

Returns the type of the hit

uint QRayCasterHit:: vertex1Index () const

Returns the index of the first vertex of the picked primitive

uint QRayCasterHit:: vertex2Index () const

Returns the index of the second vertex of the picked primitive

uint QRayCasterHit:: vertex3Index () const

Returns the index of the third vertex of the picked primitive

QVector3D QRayCasterHit:: worldIntersection () const

Returns the coordinates of the intersection point in the model's coordinate system