TensorFlow教程之API DOC 6.1.8 Class tensorflow::TensorShape

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Class tensorflow::TensorShape

Manages the dimensions of a Tensor and their sizes.

Member Summary

tensorflow::TensorShape::TensorShape(gtl::ArraySlice< int64 > dim_sizes) Construct a TensorShape from the provided sizes. REQUIRES: dim_sizes[i] >= 0 tensorflow::TensorShape::TensorShape(std::initializer_list< int64 > dim_sizes) tensorflow::TensorShape::TensorShape(const TensorShapeProto &proto) REQUIRES: IsValid(proto) tensorflow::TensorShape::TensorShape() void tensorflow::TensorShape::Clear() Clear a tensor shape. void tensorflow::TensorShape::AddDim(int64 size) Add a dimension to the end ("inner-most"). REQUIRES: size >= 0 void tensorflow::TensorShape::AppendShape(const TensorShape &shape) Appends all the dimensions from shape. void tensorflow::TensorShape::InsertDim(int d, int64 size) Insert a dimension somewhere in the TensorShape. REQUIRES: 0 <= d <= dims()REQUIRES: size >= 0 void tensorflow::TensorShape::set_dim(int d, int64 size) Modifies the size of the dimension d to be size REQUIRES: 0 <= d < dims() REQUIRES: size >= 0 void tensorflow::TensorShape::RemoveDim(int d) Removes dimension d from the TensorShape. REQUIRES: 0 <= d < dims() int tensorflow::TensorShape::dims() const Return the number of dimensions in the tensor. int64 tensorflow::TensorShape::dim_size(int d) const Returns the number of elements in dimension d. REQUIRES: 0 <= d < dims() gtl::ArraySlice<int64> tensorflow::TensorShape::dim_sizes() const Returns sizes of all dimensions. int64 tensorflow::TensorShape::num_elements() const Returns the number of elements in the tensor.bool tensorflow::TensorShape::IsSameSize(const TensorShape &b) constbool tensorflow::TensorShape::operator==(const TensorShape &b) const void tensorflow::TensorShape::AsProto(TensorShapeProto *proto) const Fill *proto from *this. Eigen::DSizes< Eigen::DenseIndex, NDIMS > tensorflow::TensorShape::AsEigenDSizes() const Fill *dsizes from *this.Eigen::DSizes< Eigen::DenseIndex, NDIMS > tensorflow::TensorShape::AsEigenDSizesWithPadding() const TensorShapeIter tensorflow::TensorShape::begin() const For iterating through the dimensions.TensorShapeIter tensorflow::TensorShape::end() const string tensorflow::TensorShape::DebugString() const For error messages.string tensorflow::TensorShape::ShortDebugString() const static bool tensorflow::TensorShape::IsValid(const TensorShapeProto &proto) Returns true iff proto is a valid tensor shape.

Member Details

tensorflow::TensorShape::TensorShape(gtl::ArraySlice< int64 > dim_sizes)

Construct a TensorShape from the provided sizes. REQUIRES: dim_sizes[i] >= 0

tensorflow::TensorShape::TensorShape(std::initializer_list< int64 > dim_sizes)

tensorflow::TensorShape::TensorShape(const TensorShapeProto &proto)

REQUIRES: IsValid(proto)

tensorflow::TensorShape::TensorShape()

Create a tensor shape with no dimensions and one element, which you can then call AddDim() on.

void tensorflow::TensorShape::Clear()

Clear a tensor shape.

void tensorflow::TensorShape::AddDim(int64 size)

Add a dimension to the end ("inner-most"). REQUIRES: size >= 0

void tensorflow::TensorShape::AppendShape(const TensorShape &shape)

Appends all the dimensions from shape.

void tensorflow::TensorShape::InsertDim(int d, int64 size)

Insert a dimension somewhere in the TensorShape. REQUIRES: 0 <= d <= dims() REQUIRES: size >= 0

void tensorflow::TensorShape::set_dim(int d, int64 size)

Modifies the size of the dimension d to be size REQUIRES: 0 <= d < dims() REQUIRES: size >= 0

void tensorflow::TensorShape::RemoveDim(int d)

Removes dimension d from the TensorShape. REQUIRES: 0 <= d < dims()

int tensorflow::TensorShape::dims() const

Return the number of dimensions in the tensor.

int64 tensorflow::TensorShape::dim_size(int d) const

Returns the number of elements in dimension d. REQUIRES: 0 <= d < dims()

gtl::ArraySlice<int64> tensorflow::TensorShape::dim_sizes() const

Returns sizes of all dimensions.

int64 tensorflow::TensorShape::num_elements() const

Returns the number of elements in the tensor.

We use int64 and not size_t to be compatible with Eigen::Tensor which uses ptrdiff_t.

bool tensorflow::TensorShape::IsSameSize(const TensorShape &b) const

Returns true if *this and b have the same sizes. Ignores dimension names.

bool tensorflow::TensorShape::operator==(const TensorShape &b) const

void tensorflow::TensorShape::AsProto(TensorShapeProto *proto) const

Fill *proto from *this.

Eigen::DSizes< Eigen::DenseIndex, NDIMS > tensorflow::TensorShape::AsEigenDSizes() const

Fill *dsizes from *this.

Eigen::DSizes< Eigen::DenseIndex, NDIMS > tensorflow::TensorShape::AsEigenDSizesWithPadding() const

Same as AsEigenDSizes() but allows for NDIMS > dims() in which case we pad the rest of the sizes with 1.