C# Класс Axiom.Core.SceneQuery

A class for performing queries on a scene.
This is an abstract class for performing a query on a scene, i.e. to retrieve a list of objects and/or world geometry sections which are potentially intersecting a given region. Note the use of the word 'potentially': the results of a scene query are generated based on bounding volumes, and as such are not correct at a triangle level; the user of the SceneQuery is expected to filter the results further if greater accuracy is required.

Different SceneManagers will implement these queries in different ways to exploit their particular scene organization, and thus will provide their own concrete subclasses. In fact, these subclasses will be derived from subclasses of this class rather than directly because there will be region-type classes in between.

These queries could have just been implemented as methods on the SceneManager, however, they are wrapped up as objects to allow 'compilation' of queries if deemed appropriate by the implementation; i.e. each concrete subclass may precalculate information (such as fixed scene partitions involved in the query) to speed up the repeated use of the query.

You should never try to create a SceneQuery object yourself, they should be created using the SceneManager interfaces for the type of query required, e.g. SceneManager.CreateRaySceneQuery.

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Защищенные свойства (Protected)

Свойство Тип Описание
creator SceneManager
queryMask uint
queryTypeMask uint
worldFragmentTypes WorldFragmentType

Открытые методы

Метод Описание
AddWorldFragmentType ( WorldFragmentType fragmentType ) : void

Used to add a supported world fragment type to this query.

Приватные методы

Метод Описание
SceneQuery ( SceneManager creator ) : System

Internal constructor.

Описание методов

AddWorldFragmentType() публичный метод

Used to add a supported world fragment type to this query.
public AddWorldFragmentType ( WorldFragmentType fragmentType ) : void
fragmentType WorldFragmentType
Результат void

Описание свойств

creator защищенное свойство

Reference to the SceneManager that this query was created by.
protected SceneManager,Axiom.Core creator
Результат SceneManager

queryMask защищенное свойство

User definable query bit mask which can be used to filter the results of a query.
protected uint queryMask
Результат uint

queryTypeMask защищенное свойство

query bit mask which can be used to filter the results of a query based on object type.
protected uint queryTypeMask
Результат uint

worldFragmentTypes защищенное свойство

A flag enum which holds the world fragment types supported by this query.
protected WorldFragmentType worldFragmentTypes
Результат WorldFragmentType