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GroupWriteHandle Class Reference

`#include <openvdb/points/AttributeGroup.h>`

Inheritance diagram for GroupWriteHandle:

## Public Types

using | Ptr = std::shared_ptr<GroupWriteHandle>
using | UniquePtr = std::unique_ptr<GroupWriteHandle>
using | GroupIndex = std::pair<Index, uint8_t>

## Public Member Functions

| GroupWriteHandle (GroupAttributeArray &array, const GroupType &offset)
void | set (Index n, bool on)
| Set on at the given index n.
void | setUnsafe (Index n, bool on)
| Set on at the given index n (assumes in-core and non-uniform)
bool | collapse (bool on)
| Set membership for the whole array and attempt to collapse.
bool | compact ()
| Compact the existing array to become uniform if all values are identical.
Index | size () const
bool | isUniform () const
bool | get (Index n) const
bool | getUnsafe (Index n) const

## Protected Attributes

const GroupAttributeArray & | mArray
const GroupType | mBitMask

## Member Typedef Documentation

## GroupIndex

using GroupIndex = std::pair<Index, uint8_t>

inherited

## Ptr

using Ptr = std::shared_ptr<GroupWriteHandle>

## UniquePtr

using UniquePtr = std::unique_ptr<GroupWriteHandle>

## Constructor & Destructor Documentation

## GroupWriteHandle()

GroupWriteHandle | ( | GroupAttributeArray & | array,
|  | const GroupType & | offset )

## Member Function Documentation

## collapse()

bool collapse | ( | bool | on | ) |

Set membership for the whole array and attempt to collapse.

Parameters

  on | True or false for inclusion in group

Note
  This method guarantees that all attributes will have group membership changed according to the input bool, however compaction will not be performed if other groups that share the same underlying array are non-uniform. The return value indicates if the group array ends up being uniform.

## compact()

bool compact | ( |  | ) |

Compact the existing array to become uniform if all values are identical.

## get()

bool get | ( | Index | n | ) | const

inherited

## getUnsafe()

bool getUnsafe | ( | Index | n | ) | const

inherited

## isUniform()

bool isUniform | ( |  | ) | const

inline inherited

## set()

void set | ( | Index | n,
|  | bool | on )

Set on at the given index n.

## setUnsafe()

void setUnsafe | ( | Index | n,
|  | bool | on )

Set on at the given index n (assumes in-core and non-uniform)

## size()

Index size | ( |  | ) | const

inline inherited

## Member Data Documentation

## mArray

const GroupAttributeArray& mArray

protected inherited

## mBitMask

const GroupType mBitMask

protected inherited