Class: Picker

THING~ Picker

Picker 拾取相关功能，主要为支持 GPU picker，同时兼容支持 Threejs 的 raycast

Members

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areaCandidates :THING.Selector

设置框选候选集合, 因为框选速度较慢，所以这里需要先提供一个框选的候选列表

Type:

• THING.Selector

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areaPicking :Boolean

查询是否开启了区域选择功能

Type:

• Boolean

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enable :Boolean

开启/禁用拾取功能

Type:

• Boolean

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objects :THING.Selector

获取当前帧系统默认拾取物体集合(执行物体过滤处理后)

Type:

• THING.Selector

Example

var sel = app.picker.objects;

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pickedResultFunc :function

设置拾取结果回调函数，返回的对象即为拾取对象

Type:

• function

Example

app.picker.pickedResultFunc = function (object) {  return object;}

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previousObjects :THING.Selector

获取上一帧拾取物体集合(执行物体过滤处理后)

Type:

• THING.Selector

Example

var sel = app.picker.previousObjects;

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results :THING.Selector

获取当前帧原生拾取物体集合(忽略物体过滤处理)

Type:

• THING.Selector

Example

var sel = app.picker.results;

Methods

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endAreaPicking()

结束框选

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isChanged() → {Boolean}

检测当前帧拾取的物体是否发生了变化

Returns:

Type

Boolean

Example

app.picker.isChanged()

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startAreaPicking(params)

开启框选

Parameters:

Name	Type	Description
params	Object	参数列表 Properties Name Type Argument Description x Number 屏幕 x 坐标 y Number 屏幕 y 坐标 realTimePicking Boolean <optional> 是否实时框选(速度较慢) drawRegion Boolean <optional> 是否绘制框选区域