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AttributeSet.h
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// Copyright Contributors to the OpenVDB Project
// SPDX-License-Identifier: MPL-2.0
/// @file points/AttributeSet.h
///
/// @authors Dan Bailey, Mihai Alden
///
/// @brief Set of Attribute Arrays which tracks metadata about each array.
#ifndef OPENVDB_POINTS_ATTRIBUTE_SET_HAS_BEEN_INCLUDED
#define OPENVDB_POINTS_ATTRIBUTE_SET_HAS_BEEN_INCLUDED
#include "AttributeArray.h"
#include <openvdb/version.h>
#include <openvdb/MetaMap.h>
#include <limits>
#include <memory>
#include <vector>
class TestAttributeSet;
namespace openvdb {
OPENVDB_USE_VERSION_NAMESPACE
namespace OPENVDB_VERSION_NAME {
namespace points {
using GroupType = uint8_t;
////////////////////////////////////////
/// Ordered collection of uniquely-named attribute arrays
class OPENVDB_API AttributeSet
{
public:
enum AttributePositionLabel : size_t { INVALID_POS = std::numeric_limits<size_t>::max() };
using Ptr = std::shared_ptr<AttributeSet>;
using ConstPtr = std::shared_ptr<const AttributeSet>;
using UniquePtr = std::unique_ptr<AttributeSet>;
class Descriptor;
using DescriptorPtr = std::shared_ptr<Descriptor>;
using DescriptorConstPtr = std::shared_ptr<const Descriptor>;
//////////
struct Util
{
/// Attribute and type name pair.
struct NameAndType {
NameAndType(const std::string& n, const NamePair& t, const Index s = 1)
: name(n), type(t), stride(s) {}
Name name;
NamePair type;
Index stride;
};
using NameAndTypeVec = std::vector<NameAndType>;
using NameToPosMap = std::map<std::string, size_t>;
using GroupIndex = std::pair<size_t, uint8_t>;
};
//////////
AttributeSet();
/// Construct a new AttributeSet from the given AttributeSet.
/// @param attributeSet the old attribute set
/// @param arrayLength the desired length of the arrays in the new AttributeSet
/// @param lock an optional scoped registry lock to avoid contention
/// @note This constructor is typically used to resize an existing AttributeSet as
/// it transfers attribute metadata such as hidden and transient flags
AttributeSet(const AttributeSet& attributeSet, Index arrayLength,
const AttributeArray::ScopedRegistryLock* lock = nullptr);
/// Construct a new AttributeSet from the given Descriptor.
/// @param descriptor stored in the new AttributeSet and used in construction
/// @param arrayLength the desired length of the arrays in the new AttributeSet
/// @param lock an optional scoped registry lock to avoid contention
/// @note Descriptors do not store attribute metadata such as hidden and transient flags
/// which live on the AttributeArrays, so for constructing from an existing AttributeSet
/// use the AttributeSet(const AttributeSet&, Index) constructor instead
AttributeSet(const DescriptorPtr& descriptor, Index arrayLength = 1,
const AttributeArray::ScopedRegistryLock* lock = nullptr);
/// Shallow copy constructor, the descriptor and attribute arrays will be shared.
AttributeSet(const AttributeSet&);
/// Disallow copy assignment, since it wouldn't be obvious whether the copy is deep or shallow.
AttributeSet& operator=(const AttributeSet&) = delete;
//@{
/// @brief Return a reference to this attribute set's descriptor, which might
/// be shared with other sets.
Descriptor& descriptor() { return *mDescr; }
const Descriptor& descriptor() const { return *mDescr; }
//@}
/// @brief Return a pointer to this attribute set's descriptor, which might be
/// shared with other sets
DescriptorPtr descriptorPtr() const { return mDescr; }
/// Return the number of attributes in this set.
size_t size() const { return mAttrs.size(); }
/// Return the number of bytes of memory used by this attribute set.
size_t memUsage() const;
#if OPENVDB_ABI_VERSION_NUMBER >= 10
/// Return the number of bytes of memory used by this attribute set once it
/// has been deserialized (this may be different to memUsage() if delay-loading
/// is in use).
size_t memUsageIfLoaded() const;
#endif
/// @brief Return the position of the attribute array whose name is @a name,
/// or @c INVALID_POS if no match is found.
size_t find(const std::string& name) const;
/// @brief Replace the attribute array whose name is @a name.
/// @return The position of the updated attribute array or @c INVALID_POS
/// if the given name does not exist or if the replacement failed because
/// the new array type does not comply with the descriptor.
size_t replace(const std::string& name, const AttributeArray::Ptr&);
/// @brief Replace the attribute array stored at position @a pos in this container.
/// @return The position of the updated attribute array or @c INVALID_POS
/// if replacement failed because the new array type does not comply with
/// the descriptor.
size_t replace(size_t pos, const AttributeArray::Ptr&);
//@{
/// @brief Return a pointer to the attribute array whose name is @a name or
/// a null pointer if no match is found.
const AttributeArray* getConst(const std::string& name) const;
const AttributeArray* get(const std::string& name) const;
AttributeArray* get(const std::string& name);
//@}
//@{
/// @brief Return a pointer to the attribute array stored at position @a pos
/// in this set.
const AttributeArray* getConst(size_t pos) const;
const AttributeArray* get(size_t pos) const;
AttributeArray* get(size_t pos);
//@}
//@{
/// @brief Return the group offset from the name or index of the group
/// A group attribute array is a single byte (8-bit), each bit of which
/// can denote a group. The group offset is the position of the bit that
/// denotes the requested group if all group attribute arrays in the set
/// (and only attribute arrays marked as group) were to be laid out linearly
/// according to their order in the set.
size_t groupOffset(const Name& groupName) const;
size_t groupOffset(const Util::GroupIndex& index) const;
//@}
/// Return the group index from the name of the group
Util::GroupIndex groupIndex(const Name& groupName) const;
/// Return the group index from the offset of the group
/// @note see offset description for groupOffset()
Util::GroupIndex groupIndex(const size_t offset) const;
/// Return the indices of the attribute arrays which are group attribute arrays
std::vector<size_t> groupAttributeIndices() const;
/// Return true if the attribute array stored at position @a pos is shared.
bool isShared(size_t pos) const;
/// @brief If the attribute array stored at position @a pos is shared,
/// replace the array with a deep copy of itself that is not
/// shared with anyone else.
void makeUnique(size_t pos);
/// Append attribute @a attribute (simple method)
AttributeArray::Ptr appendAttribute(const Name& name,
const NamePair& type,
const Index strideOrTotalSize = 1,
const bool constantStride = true,
const Metadata* defaultValue = nullptr);
/// Append attribute @a attribute (descriptor-sharing)
/// Requires current descriptor to match @a expected
/// On append, current descriptor is replaced with @a replacement
/// Provide a @a lock object to avoid contention from appending in parallel
AttributeArray::Ptr appendAttribute(const Descriptor& expected, DescriptorPtr& replacement,
const size_t pos, const Index strideOrTotalSize = 1,
const bool constantStride = true,
const Metadata* defaultValue = nullptr,
const AttributeArray::ScopedRegistryLock* lock = nullptr);
/// @brief Remove and return an attribute array by name
/// @param name the name of the attribute array to release
/// @details Detaches the attribute array from this attribute set and returns it, if
/// @a name is invalid, returns an empty shared pointer. This also updates the descriptor
/// to remove the reference to the attribute array.
/// @note AttributeArrays are stored as shared pointers, so they are not guaranteed
/// to be unique. Check the reference count before blindly re-using in a new AttributeSet.
AttributeArray::Ptr removeAttribute(const Name& name);
/// @brief Remove and return an attribute array by index
/// @param pos the position index of the attribute to release
/// @details Detaches the attribute array from this attribute set and returns it, if
/// @a pos is invalid, returns an empty shared pointer. This also updates the descriptor
/// to remove the reference to the attribute array.
/// @note AttributeArrays are stored as shared pointers, so they are not guaranteed
/// to be unique. Check the reference count before blindly re-using in a new AttributeSet.
AttributeArray::Ptr removeAttribute(const size_t pos);
/// @brief Remove and return an attribute array by index (unsafe method)
/// @param pos the position index of the attribute to release
/// @details Detaches the attribute array from this attribute set and returns it, if
/// @a pos is invalid, returns an empty shared pointer.
/// In cases where the AttributeSet is due to be destroyed, a small performance
/// advantage can be gained by leaving the attribute array as a nullptr and not
/// updating the descriptor. However, this leaves the AttributeSet in an invalid
/// state making it unsafe to call any methods that implicitly derefence the attribute array.
/// @note AttributeArrays are stored as shared pointers, so they are not guaranteed
/// to be unique. Check the reference count before blindly re-using in a new AttributeSet.
/// @warning Only use this method if you're an expert and know the risks of not
/// updating the array of attributes or the descriptor.
AttributeArray::Ptr removeAttributeUnsafe(const size_t pos);
/// Drop attributes with @a pos indices (simple method)
/// Creates a new descriptor for this attribute set
void dropAttributes(const std::vector<size_t>& pos);
/// Drop attributes with @a pos indices (descriptor-sharing method)
/// Requires current descriptor to match @a expected
/// On drop, current descriptor is replaced with @a replacement
void dropAttributes(const std::vector<size_t>& pos,
const Descriptor& expected, DescriptorPtr& replacement);
/// Re-name attributes in set to match a provided descriptor
/// Replaces own descriptor with @a replacement
void renameAttributes(const Descriptor& expected, const DescriptorPtr& replacement);
/// Re order attribute set to match a provided descriptor
/// Replaces own descriptor with @a replacement
void reorderAttributes(const DescriptorPtr& replacement);
/// Replace the current descriptor with a @a replacement
/// Note the provided Descriptor must be identical to the replacement
/// unless @a allowMismatchingDescriptors is true (default is false)
void resetDescriptor(const DescriptorPtr& replacement, const bool allowMismatchingDescriptors = false);
/// Read the entire set from a stream.
void read(std::istream&);
/// Write the entire set to a stream.
/// @param outputTransient if true, write out transient attributes
void write(std::ostream&, bool outputTransient = false) const;
/// This will read the attribute descriptor from a stream.
void readDescriptor(std::istream&);
/// This will write the attribute descriptor to a stream.
/// @param outputTransient if true, write out transient attributes
void writeDescriptor(std::ostream&, bool outputTransient = false) const;
/// This will read the attribute metadata from a stream.
void readMetadata(std::istream&);
/// This will write the attribute metadata to a stream.
/// @param outputTransient if true, write out transient attributes
/// @param paged if true, data is written out in pages
void writeMetadata(std::ostream&, bool outputTransient = false, bool paged = false) const;
/// This will read the attribute data from a stream.
void readAttributes(std::istream&);
/// This will write the attribute data to a stream.
/// @param outputTransient if true, write out transient attributes
void writeAttributes(std::ostream&, bool outputTransient = false) const;
/// Compare the descriptors and attribute arrays on the attribute sets
/// Exit early if the descriptors do not match
bool operator==(const AttributeSet& other) const;
bool operator!=(const AttributeSet& other) const { return !this->operator==(other); }
private:
using AttrArrayVec = std::vector<AttributeArray::Ptr>;
DescriptorPtr mDescr;
AttrArrayVec mAttrs;
}; // class AttributeSet
////////////////////////////////////////
/// A container for ABI=5 to help ease introduction of upcoming features
namespace future {
class Container
{
class Element { };
std::vector<std::shared_ptr<Element>> mElements;
};
}
////////////////////////////////////////
/// @brief An immutable object that stores name, type and AttributeSet position
/// for a constant collection of attribute arrays.
/// @note The attribute name is actually mutable, but the attribute type
/// and position can not be changed after creation.
class OPENVDB_API AttributeSet::Descriptor
{
public:
using Ptr = std::shared_ptr<Descriptor>;
using NameAndType = Util::NameAndType;
using NameAndTypeVec = Util::NameAndTypeVec;
using GroupIndex = Util::GroupIndex;
using NameToPosMap = Util::NameToPosMap;
using ConstIterator = NameToPosMap::const_iterator;
/// Utility method to construct a NameAndType sequence.
struct Inserter {
NameAndTypeVec vec;
Inserter& add(const NameAndType& nameAndType) {
vec.push_back(nameAndType); return *this;
}
Inserter& add(const Name& name, const NamePair& type) {
vec.emplace_back(name, type); return *this;
}
Inserter& add(const NameAndTypeVec& other) {
for (NameAndTypeVec::const_iterator it = other.begin(), itEnd = other.end(); it != itEnd; ++it) {
vec.emplace_back(it->name, it->type);
}
return *this;
}
};
//////////
Descriptor();
/// Copy constructor
Descriptor(const Descriptor&);
/// Create a new descriptor from a position attribute type and assumes "P" (for convenience).
static Ptr create(const NamePair&);
/// Create a new descriptor as a duplicate with a new attribute appended
Ptr duplicateAppend(const Name& name, const NamePair& type) const;
/// Create a new descriptor as a duplicate with existing attributes dropped
Ptr duplicateDrop(const std::vector<size_t>& pos) const;
/// Return the number of attributes in this descriptor.
size_t size() const { return mTypes.size(); }
/// Return the number of attributes with this attribute type
size_t count(const NamePair& type) const;
/// Return the number of bytes of memory used by this attribute set.
size_t memUsage() const;
/// @brief Return the position of the attribute array whose name is @a name,
/// or @c INVALID_POS if no match is found.
size_t find(const std::string& name) const;
/// Rename an attribute array
size_t rename(const std::string& fromName, const std::string& toName);
/// Return the name of the attribute array's type.
const Name& valueType(size_t pos) const;
/// Return the name of the attribute array's type.
const NamePair& type(size_t pos) const;
/// Retrieve metadata map
MetaMap& getMetadata();
const MetaMap& getMetadata() const;
/// Return true if the attribute has a default value
bool hasDefaultValue(const Name& name) const;
/// Get a default value for an existing attribute
template<typename ValueType>
ValueType getDefaultValue(const Name& name) const
{
const size_t pos = find(name);
if (pos == INVALID_POS) {
OPENVDB_THROW(LookupError, "Cannot find attribute name to set default value.")
}
std::stringstream ss;
ss << "default:" << name;
auto metadata = mMetadata.getMetadata<TypedMetadata<ValueType>>(ss.str());
if (metadata) return metadata->value();
return zeroVal<ValueType>();
}
/// Set a default value for an existing attribute
void setDefaultValue(const Name& name, const Metadata& defaultValue);
// Remove the default value if it exists
void removeDefaultValue(const Name& name);
// Prune any default values for which the key is no longer present
void pruneUnusedDefaultValues();
/// Return true if this descriptor is equal to the given one.
bool operator==(const Descriptor&) const;
/// Return true if this descriptor is not equal to the given one.
bool operator!=(const Descriptor& rhs) const { return !this->operator==(rhs); }
/// Return true if this descriptor contains the same attributes
/// as the given descriptor, ignoring attribute order
bool hasSameAttributes(const Descriptor& rhs) const;
/// Return a reference to the name-to-position map.
const NameToPosMap& map() const { return mNameMap; }
/// Return a reference to the name-to-position group map.
const NameToPosMap& groupMap() const { return mGroupMap; }
/// Return @c true if group exists
bool hasGroup(const Name& group) const;
/// @brief Define a group name to offset mapping
/// @param group group name
/// @param offset group offset
/// @param checkValidOffset throws if offset out-of-range or in-use
void setGroup(const Name& group, const size_t offset,
const bool checkValidOffset = false);
/// Drop any mapping keyed by group name
void dropGroup(const Name& group);
/// Clear all groups
void clearGroups();
/// Rename a group
size_t renameGroup(const std::string& fromName, const std::string& toName);
/// Return a unique name for a group based on given name
const Name uniqueGroupName(const Name& name) const;
//@{
/// @brief Return the group offset from the name or index of the group
/// A group attribute array is a single byte (8-bit), each bit of which
/// can denote a group. The group offset is the position of the bit that
/// denotes the requested group if all group attribute arrays in the set
/// (and only attribute arrays marked as group) were to be laid out linearly
/// according to their order in the set.
size_t groupOffset(const Name& groupName) const;
size_t groupOffset(const GroupIndex& index) const;
//@}
/// Return the group index from the name of the group
GroupIndex groupIndex(const Name& groupName) const;
/// Return the group index from the offset of the group
/// @note see offset description for groupOffset()
GroupIndex groupIndex(const size_t offset) const;
/// Return number of bits occupied by a group attribute array
static size_t groupBits() { return sizeof(GroupType) * CHAR_BIT; }
/// Return the total number of available groups
/// (group bits * number of group attributes)
size_t availableGroups() const;
/// Return the number of empty group slots which correlates to the number of groups
/// that can be stored without increasing the number of group attribute arrays
size_t unusedGroups() const;
/// Return @c true if there are sufficient empty slots to allow compacting
bool canCompactGroups() const;
/// @brief Return a group offset that is not in use
/// @param hint if provided, request a specific offset as a hint
/// @return index of an offset or size_t max if no available group offsets
size_t unusedGroupOffset(size_t hint = std::numeric_limits<size_t>::max()) const;
/// @brief Determine if a move is required to efficiently compact the data and store the
/// source name, offset and the target offset in the input parameters
/// @param sourceName source name
/// @param sourceOffset source offset
/// @param targetOffset target offset
/// @return @c true if move is required to compact the data
bool requiresGroupMove(Name& sourceName, size_t& sourceOffset, size_t& targetOffset) const;
/// @brief Test if there are any group names shared by both descriptors which
/// have a different index
/// @param rhs the descriptor to compare with
/// @return @c true if an index collision exists
bool groupIndexCollision(const Descriptor& rhs) const;
/// Return a unique name for an attribute array based on given name
const Name uniqueName(const Name& name) const;
/// Return true if the name is valid
static bool validName(const Name& name);
/// @brief Extract each name from @a nameStr into @a includeNames, or into @a excludeNames
/// if the name is prefixed with a caret.
/// @param nameStr the input string of names
/// @param includeNames on exit, the list of names that are not prefixed with a caret
/// @param excludeNames on exit, the list of names that are prefixed with a caret
/// @param includeAll on exit, @c true if a "*" wildcard is present in the @a includeNames
static void parseNames( std::vector<std::string>& includeNames,
std::vector<std::string>& excludeNames,
bool& includeAll,
const std::string& nameStr);
/// @brief Extract each name from @a nameStr into @a includeNames, or into @a excludeNames
/// if the name is prefixed with a caret.
static void parseNames( std::vector<std::string>& includeNames,
std::vector<std::string>& excludeNames,
const std::string& nameStr);
/// Serialize this descriptor to the given stream.
void write(std::ostream&) const;
/// Unserialize this transform from the given stream.
void read(std::istream&);
protected:
/// Append to a vector of names and types from this Descriptor in position order
void appendTo(NameAndTypeVec& attrs) const;
/// Create a new descriptor from the given attribute and type name pairs
/// and copy the group maps and metamap.
static Ptr create(const NameAndTypeVec&, const NameToPosMap&, const MetaMap&);
size_t insert(const std::string& name, const NamePair& typeName);
private:
friend class ::TestAttributeSet;
NameToPosMap mNameMap;
std::vector<NamePair> mTypes;
NameToPosMap mGroupMap;
MetaMap mMetadata;
// as this change is part of an ABI change, there's no good reason to reduce the reserved
// space aside from keeping the memory size of an AttributeSet the same for convenience
// (note that this assumes a typical three-pointer implementation for std::vector)
future::Container mFutureContainer; // occupies 3 reserved slots
int64_t mReserved[5]; // for future use
}; // class Descriptor
} // namespace points
} // namespace OPENVDB_VERSION_NAME
} // namespace openvdb
#endif // OPENVDB_POINTS_ATTRIBUTE_ARRAY_HAS_BEEN_INCLUDED
AttributeArray.h
Attribute Array storage templated on type and compression codec.
OPENVDB_THROW
#define OPENVDB_THROW(exception, message)
Definition Exceptions.h:74
MetaMap.h
OPENVDB_API
#define OPENVDB_API
Definition Platform.h:274
openvdb::v11_0::LookupError
Definition Exceptions.h:60
openvdb::v11_0::MetaMap
Container that maps names (strings) to values of arbitrary types.
Definition MetaMap.h:20
openvdb::v11_0::Metadata
Base class for storing metadata information in a grid.
Definition Metadata.h:24
openvdb::v11_0::TypedMetadata
Templated metadata class to hold specific types.
Definition Metadata.h:122
openvdb::v11_0::points::AttributeArray::ScopedRegistryLock
Definition AttributeArray.h:119
openvdb::v11_0::points::AttributeArray
Base class for storing attribute data.
Definition AttributeArray.h:93
openvdb::v11_0::points::AttributeArray::Ptr
std::shared_ptr< AttributeArray > Ptr
Definition AttributeArray.h:125
openvdb::v11_0::points::AttributeSet::Descriptor
An immutable object that stores name, type and AttributeSet position for a constant collection of att...
Definition AttributeSet.h:312
openvdb::v11_0::points::AttributeSet::Descriptor::ConstIterator
NameToPosMap::const_iterator ConstIterator
Definition AttributeSet.h:320
openvdb::v11_0::points::AttributeSet::Descriptor::requiresGroupMove
bool requiresGroupMove(Name &sourceName, size_t &sourceOffset, size_t &targetOffset) const
Determine if a move is required to efficiently compact the data and store the source name,...
openvdb::v11_0::points::AttributeSet::Descriptor::groupOffset
size_t groupOffset(const Name &groupName) const
Return the group offset from the name or index of the group A group attribute array is a single byte ...
openvdb::v11_0::points::AttributeSet::Descriptor::groupIndex
GroupIndex groupIndex(const size_t offset) const
openvdb::v11_0::points::AttributeSet::Descriptor::unusedGroups
size_t unusedGroups() const
openvdb::v11_0::points::AttributeSet::Descriptor::operator==
bool operator==(const Descriptor &) const
Return true if this descriptor is equal to the given one.
openvdb::v11_0::points::AttributeSet::Descriptor::GroupIndex
Util::GroupIndex GroupIndex
Definition AttributeSet.h:318
openvdb::v11_0::points::AttributeSet::Descriptor::getMetadata
const MetaMap & getMetadata() const
openvdb::v11_0::points::AttributeSet::Descriptor::clearGroups
void clearGroups()
Clear all groups.
openvdb::v11_0::points::AttributeSet::Descriptor::memUsage
size_t memUsage() const
Return the number of bytes of memory used by this attribute set.
openvdb::v11_0::points::AttributeSet::Descriptor::renameGroup
size_t renameGroup(const std::string &fromName, const std::string &toName)
Rename a group.
openvdb::v11_0::points::AttributeSet::Descriptor::validName
static bool validName(const Name &name)
Return true if the name is valid.
openvdb::v11_0::points::AttributeSet::Descriptor::groupOffset
size_t groupOffset(const GroupIndex &index) const
openvdb::v11_0::points::AttributeSet::Descriptor::size
size_t size() const
Return the number of attributes in this descriptor.
Definition AttributeSet.h:356
openvdb::v11_0::points::AttributeSet::Descriptor::NameAndTypeVec
Util::NameAndTypeVec NameAndTypeVec
Definition AttributeSet.h:317
openvdb::v11_0::points::AttributeSet::Descriptor::rename
size_t rename(const std::string &fromName, const std::string &toName)
Rename an attribute array.
openvdb::v11_0::points::AttributeSet::Descriptor::find
size_t find(const std::string &name) const
Return the position of the attribute array whose name is name, or INVALID_POS if no match is found.
openvdb::v11_0::points::AttributeSet::Descriptor::groupIndexCollision
bool groupIndexCollision(const Descriptor &rhs) const
Test if there are any group names shared by both descriptors which have a different index.
openvdb::v11_0::points::AttributeSet::Descriptor::duplicateDrop
Ptr duplicateDrop(const std::vector< size_t > &pos) const
Create a new descriptor as a duplicate with existing attributes dropped.
openvdb::v11_0::points::AttributeSet::Descriptor::unusedGroupOffset
size_t unusedGroupOffset(size_t hint=std::numeric_limits< size_t >::max()) const
Return a group offset that is not in use.
openvdb::v11_0::points::AttributeSet::Descriptor::valueType
const Name & valueType(size_t pos) const
Return the name of the attribute array's type.
openvdb::v11_0::points::AttributeSet::Descriptor::operator!=
bool operator!=(const Descriptor &rhs) const
Return true if this descriptor is not equal to the given one.
Definition AttributeSet.h:410
openvdb::v11_0::points::AttributeSet::Descriptor::write
void write(std::ostream &) const
Serialize this descriptor to the given stream.
openvdb::v11_0::points::AttributeSet::Descriptor::type
const NamePair & type(size_t pos) const
Return the name of the attribute array's type.
openvdb::v11_0::points::AttributeSet::Descriptor::duplicateAppend
Ptr duplicateAppend(const Name &name, const NamePair &type) const
Create a new descriptor as a duplicate with a new attribute appended.
openvdb::v11_0::points::AttributeSet::Descriptor::create
static Ptr create(const NameAndTypeVec &, const NameToPosMap &, const MetaMap &)
openvdb::v11_0::points::AttributeSet::Descriptor::setDefaultValue
void setDefaultValue(const Name &name, const Metadata &defaultValue)
Set a default value for an existing attribute.
openvdb::v11_0::points::AttributeSet::Descriptor::canCompactGroups
bool canCompactGroups() const
Return true if there are sufficient empty slots to allow compacting.
openvdb::v11_0::points::AttributeSet::Descriptor::appendTo
void appendTo(NameAndTypeVec &attrs) const
Append to a vector of names and types from this Descriptor in position order.
openvdb::v11_0::points::AttributeSet::Descriptor::read
void read(std::istream &)
Unserialize this transform from the given stream.
openvdb::v11_0::points::AttributeSet::Descriptor::removeDefaultValue
void removeDefaultValue(const Name &name)
openvdb::v11_0::points::AttributeSet::Descriptor::Ptr
std::shared_ptr< Descriptor > Ptr
Definition AttributeSet.h:314
openvdb::v11_0::points::AttributeSet::Descriptor::setGroup
void setGroup(const Name &group, const size_t offset, const bool checkValidOffset=false)
Define a group name to offset mapping.
openvdb::v11_0::points::AttributeSet::Descriptor::Descriptor
Descriptor(const Descriptor &)
Copy constructor.
openvdb::v11_0::points::AttributeSet::Descriptor::pruneUnusedDefaultValues
void pruneUnusedDefaultValues()
openvdb::v11_0::points::AttributeSet::Descriptor::map
const NameToPosMap & map() const
Return a reference to the name-to-position map.
Definition AttributeSet.h:416
openvdb::v11_0::points::AttributeSet::Descriptor::groupMap
const NameToPosMap & groupMap() const
Return a reference to the name-to-position group map.
Definition AttributeSet.h:418
openvdb::v11_0::points::AttributeSet::Descriptor::parseNames
static void parseNames(std::vector< std::string > &includeNames, std::vector< std::string > &excludeNames, const std::string &nameStr)
Extract each name from nameStr into includeNames, or into excludeNames if the name is prefixed with a...
openvdb::v11_0::points::AttributeSet::Descriptor::Descriptor
Descriptor()
openvdb::v11_0::points::AttributeSet::Descriptor::parseNames
static void parseNames(std::vector< std::string > &includeNames, std::vector< std::string > &excludeNames, bool &includeAll, const std::string &nameStr)
Extract each name from nameStr into includeNames, or into excludeNames if the name is prefixed with a...
openvdb::v11_0::points::AttributeSet::Descriptor::hasDefaultValue
bool hasDefaultValue(const Name &name) const
Return true if the attribute has a default value.
openvdb::v11_0::points::AttributeSet::Descriptor::getDefaultValue
ValueType getDefaultValue(const Name &name) const
Get a default value for an existing attribute.
Definition AttributeSet.h:384
openvdb::v11_0::points::AttributeSet::Descriptor::groupIndex
GroupIndex groupIndex(const Name &groupName) const
Return the group index from the name of the group.
openvdb::v11_0::points::AttributeSet::Descriptor::insert
size_t insert(const std::string &name, const NamePair &typeName)
openvdb::v11_0::points::AttributeSet::Descriptor::count
size_t count(const NamePair &type) const
Return the number of attributes with this attribute type.
openvdb::v11_0::points::AttributeSet::Descriptor::groupBits
static size_t groupBits()
Return number of bits occupied by a group attribute array.
Definition AttributeSet.h:455
openvdb::v11_0::points::AttributeSet::Descriptor::getMetadata
MetaMap & getMetadata()
Retrieve metadata map.
openvdb::v11_0::points::AttributeSet::Descriptor::uniqueName
const Name uniqueName(const Name &name) const
Return a unique name for an attribute array based on given name.
openvdb::v11_0::points::AttributeSet::Descriptor::availableGroups
size_t availableGroups() const
openvdb::v11_0::points::AttributeSet::Descriptor::NameToPosMap
Util::NameToPosMap NameToPosMap
Definition AttributeSet.h:319
openvdb::v11_0::points::AttributeSet::Descriptor::create
static Ptr create(const NamePair &)
Create a new descriptor from a position attribute type and assumes "P" (for convenience).
openvdb::v11_0::points::AttributeSet::Descriptor::dropGroup
void dropGroup(const Name &group)
Drop any mapping keyed by group name.
openvdb::v11_0::points::AttributeSet::Descriptor::hasSameAttributes
bool hasSameAttributes(const Descriptor &rhs) const
openvdb::v11_0::points::AttributeSet::Descriptor::NameAndType
Util::NameAndType NameAndType
Definition AttributeSet.h:316
openvdb::v11_0::points::AttributeSet::Descriptor::hasGroup
bool hasGroup(const Name &group) const
Return true if group exists.
openvdb::v11_0::points::AttributeSet::Descriptor::uniqueGroupName
const Name uniqueGroupName(const Name &name) const
Return a unique name for a group based on given name.
openvdb::v11_0::points::AttributeSet::replace
size_t replace(const std::string &name, const AttributeArray::Ptr &)
Replace the attribute array whose name is name.
openvdb::v11_0::points::AttributeSet::get
const AttributeArray * get(const std::string &name) const
openvdb::v11_0::points::AttributeSet::descriptorPtr
DescriptorPtr descriptorPtr() const
Return a pointer to this attribute set's descriptor, which might be shared with other sets.
Definition AttributeSet.h:108
openvdb::v11_0::points::AttributeSet::groupOffset
size_t groupOffset(const Name &groupName) const
Return the group offset from the name or index of the group A group attribute array is a single byte ...
openvdb::v11_0::points::AttributeSet::writeDescriptor
void writeDescriptor(std::ostream &, bool outputTransient=false) const
openvdb::v11_0::points::AttributeSet::dropAttributes
void dropAttributes(const std::vector< size_t > &pos, const Descriptor &expected, DescriptorPtr &replacement)
openvdb::v11_0::points::AttributeSet::memUsageIfLoaded
size_t memUsageIfLoaded() const
openvdb::v11_0::points::AttributeSet::groupIndex
Util::GroupIndex groupIndex(const Name &groupName) const
Return the group index from the name of the group.
openvdb::v11_0::points::AttributeSet::memUsage
size_t memUsage() const
Return the number of bytes of memory used by this attribute set.
openvdb::v11_0::points::AttributeSet::readDescriptor
void readDescriptor(std::istream &)
This will read the attribute descriptor from a stream.
openvdb::v11_0::points::AttributeSet::readAttributes
void readAttributes(std::istream &)
This will read the attribute data from a stream.
openvdb::v11_0::points::AttributeSet::size
size_t size() const
Return the number of attributes in this set.
Definition AttributeSet.h:111
openvdb::v11_0::points::AttributeSet::operator==
bool operator==(const AttributeSet &other) const
openvdb::v11_0::points::AttributeSet::getConst
const AttributeArray * getConst(const std::string &name) const
Return a pointer to the attribute array whose name is name or a null pointer if no match is found.
openvdb::v11_0::points::AttributeSet::find
size_t find(const std::string &name) const
Return the position of the attribute array whose name is name, or INVALID_POS if no match is found.
openvdb::v11_0::points::AttributeSet::getConst
const AttributeArray * getConst(size_t pos) const
Return a pointer to the attribute array stored at position pos in this set.
openvdb::v11_0::points::AttributeSet::AttributeSet
AttributeSet(const AttributeSet &attributeSet, Index arrayLength, const AttributeArray::ScopedRegistryLock *lock=nullptr)
openvdb::v11_0::points::AttributeSet::appendAttribute
AttributeArray::Ptr appendAttribute(const Name &name, const NamePair &type, const Index strideOrTotalSize=1, const bool constantStride=true, const Metadata *defaultValue=nullptr)
Append attribute attribute (simple method)
openvdb::v11_0::points::AttributeSet::descriptor
const Descriptor & descriptor() const
Definition AttributeSet.h:103
openvdb::v11_0::points::AttributeSet::get
const AttributeArray * get(size_t pos) const
openvdb::v11_0::points::AttributeSet::replace
size_t replace(size_t pos, const AttributeArray::Ptr &)
Replace the attribute array stored at position pos in this container.
openvdb::v11_0::points::AttributeSet::removeAttribute
AttributeArray::Ptr removeAttribute(const size_t pos)
Remove and return an attribute array by index.
openvdb::v11_0::points::AttributeSet::removeAttributeUnsafe
AttributeArray::Ptr removeAttributeUnsafe(const size_t pos)
Remove and return an attribute array by index (unsafe method)
openvdb::v11_0::points::AttributeSet::removeAttribute
AttributeArray::Ptr removeAttribute(const Name &name)
Remove and return an attribute array by name.
openvdb::v11_0::points::AttributeSet::renameAttributes
void renameAttributes(const Descriptor &expected, const DescriptorPtr &replacement)
openvdb::v11_0::points::AttributeSet::resetDescriptor
void resetDescriptor(const DescriptorPtr &replacement, const bool allowMismatchingDescriptors=false)
openvdb::v11_0::points::AttributeSet::operator=
AttributeSet & operator=(const AttributeSet &)=delete
Disallow copy assignment, since it wouldn't be obvious whether the copy is deep or shallow.
openvdb::v11_0::points::AttributeSet::writeAttributes
void writeAttributes(std::ostream &, bool outputTransient=false) const
openvdb::v11_0::points::AttributeSet::AttributeSet
AttributeSet(const AttributeSet &)
Shallow copy constructor, the descriptor and attribute arrays will be shared.
openvdb::v11_0::points::AttributeSet::operator!=
bool operator!=(const AttributeSet &other) const
Definition AttributeSet.h:282
openvdb::v11_0::points::AttributeSet::DescriptorConstPtr
std::shared_ptr< const Descriptor > DescriptorConstPtr
Definition AttributeSet.h:50
openvdb::v11_0::points::AttributeSet::read
void read(std::istream &)
Read the entire set from a stream.
openvdb::v11_0::points::AttributeSet::descriptor
Descriptor & descriptor()
Return a reference to this attribute set's descriptor, which might be shared with other sets.
Definition AttributeSet.h:102
openvdb::v11_0::points::AttributeSet::Ptr
std::shared_ptr< AttributeSet > Ptr
Definition AttributeSet.h:43
openvdb::v11_0::points::AttributeSet::reorderAttributes
void reorderAttributes(const DescriptorPtr &replacement)
openvdb::v11_0::points::AttributeSet::AttributeSet
AttributeSet(const DescriptorPtr &descriptor, Index arrayLength=1, const AttributeArray::ScopedRegistryLock *lock=nullptr)
openvdb::v11_0::points::AttributeSet::writeMetadata
void writeMetadata(std::ostream &, bool outputTransient=false, bool paged=false) const
openvdb::v11_0::points::AttributeSet::makeUnique
void makeUnique(size_t pos)
If the attribute array stored at position pos is shared, replace the array with a deep copy of itself...
openvdb::v11_0::points::AttributeSet::AttributePositionLabel
AttributePositionLabel
Definition AttributeSet.h:41
openvdb::v11_0::points::AttributeSet::INVALID_POS
@ INVALID_POS
Definition AttributeSet.h:41
openvdb::v11_0::points::AttributeSet::AttributeSet
AttributeSet()
openvdb::v11_0::points::AttributeSet::groupOffset
size_t groupOffset(const Util::GroupIndex &index) const
openvdb::v11_0::points::AttributeSet::dropAttributes
void dropAttributes(const std::vector< size_t > &pos)
openvdb::v11_0::points::AttributeSet::groupIndex
Util::GroupIndex groupIndex(const size_t offset) const
openvdb::v11_0::points::AttributeSet::appendAttribute
AttributeArray::Ptr appendAttribute(const Descriptor &expected, DescriptorPtr &replacement, const size_t pos, const Index strideOrTotalSize=1, const bool constantStride=true, const Metadata *defaultValue=nullptr, const AttributeArray::ScopedRegistryLock *lock=nullptr)
openvdb::v11_0::points::AttributeSet::ConstPtr
std::shared_ptr< const AttributeSet > ConstPtr
Definition AttributeSet.h:44
openvdb::v11_0::points::AttributeSet::UniquePtr
std::unique_ptr< AttributeSet > UniquePtr
Definition AttributeSet.h:45
openvdb::v11_0::points::AttributeSet::get
AttributeArray * get(const std::string &name)
openvdb::v11_0::points::AttributeSet::write
void write(std::ostream &, bool outputTransient=false) const
openvdb::v11_0::points::AttributeSet::groupAttributeIndices
std::vector< size_t > groupAttributeIndices() const
Return the indices of the attribute arrays which are group attribute arrays.
openvdb::v11_0::points::AttributeSet::get
AttributeArray * get(size_t pos)
openvdb::v11_0::points::AttributeSet::readMetadata
void readMetadata(std::istream &)
This will read the attribute metadata from a stream.
openvdb::v11_0::points::AttributeSet::DescriptorPtr
std::shared_ptr< Descriptor > DescriptorPtr
Definition AttributeSet.h:49
openvdb::v11_0::points::AttributeSet::isShared
bool isShared(size_t pos) const
Return true if the attribute array stored at position pos is shared.
openvdb::v11_0::points::future::Container
Definition AttributeSet.h:297
openvdb::v11_0::points::future
A container for ABI=5 to help ease introduction of upcoming features.
Definition AttributeSet.h:295
openvdb::v11_0::points::index
Definition IndexIterator.h:34
openvdb::v11_0::points::GroupType
uint8_t GroupType
Definition AttributeSet.h:31
openvdb::v11_0::Name
std::string Name
Definition Name.h:19
openvdb::v11_0::Index
Index32 Index
Definition Types.h:54
openvdb::v11_0::NamePair
std::pair< Name, Name > NamePair
Definition AttributeArray.h:39
openvdb::v11_0::zeroVal
constexpr T zeroVal()
Return the value of type T that corresponds to zero.
Definition Math.h:70
openvdb
Definition Exceptions.h:13
openvdb::v11_0::points::AttributeSet::Descriptor::Inserter
Utility method to construct a NameAndType sequence.
Definition AttributeSet.h:323
openvdb::v11_0::points::AttributeSet::Descriptor::Inserter::add
Inserter & add(const Name &name, const NamePair &type)
Definition AttributeSet.h:328
openvdb::v11_0::points::AttributeSet::Descriptor::Inserter::add
Inserter & add(const NameAndTypeVec &other)
Definition AttributeSet.h:331
openvdb::v11_0::points::AttributeSet::Descriptor::Inserter::add
Inserter & add(const NameAndType &nameAndType)
Definition AttributeSet.h:325
openvdb::v11_0::points::AttributeSet::Descriptor::Inserter::vec
NameAndTypeVec vec
Definition AttributeSet.h:324
openvdb::v11_0::points::AttributeSet::Util::NameAndType
Attribute and type name pair.
Definition AttributeSet.h:57
openvdb::v11_0::points::AttributeSet::Util::NameAndType::NameAndType
NameAndType(const std::string &n, const NamePair &t, const Index s=1)
Definition AttributeSet.h:58
openvdb::v11_0::points::AttributeSet::Util::NameAndType::name
Name name
Definition AttributeSet.h:60
openvdb::v11_0::points::AttributeSet::Util::NameAndType::stride
Index stride
Definition AttributeSet.h:62
openvdb::v11_0::points::AttributeSet::Util::NameAndType::type
NamePair type
Definition AttributeSet.h:61
openvdb::v11_0::points::AttributeSet::Util
Definition AttributeSet.h:55
openvdb::v11_0::points::AttributeSet::Util::GroupIndex
std::pair< size_t, uint8_t > GroupIndex
Definition AttributeSet.h:67
openvdb::v11_0::points::AttributeSet::Util::NameToPosMap
std::map< std::string, size_t > NameToPosMap
Definition AttributeSet.h:66
openvdb::v11_0::points::AttributeSet::Util::NameAndTypeVec
std::vector< NameAndType > NameAndTypeVec
Definition AttributeSet.h:65
OPENVDB_VERSION_NAME
#define OPENVDB_VERSION_NAME
The version namespace name for this library version.
Definition version.h.in:121
OPENVDB_USE_VERSION_NAMESPACE
#define OPENVDB_USE_VERSION_NAMESPACE
Definition version.h.in:212