used to iterate through sequences and mappings.
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#include <opencv2/core/persistence.hpp>
used to iterate through sequences and mappings.
A standard STL notation, with node.begin(), node.end() denoting the beginning and the end of a sequence, stored in node. See the data reading sample in the beginning of the section.
- Examples
- samples/cpp/filestorage.cpp.
◆ FileNodeIterator() [1/3]
cv::FileNodeIterator::FileNodeIterator |
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The constructors.
These constructors are used to create a default iterator, set it to specific element in a file node or construct it from another iterator.
◆ FileNodeIterator() [2/3]
cv::FileNodeIterator::FileNodeIterator |
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const FileNode & |
node, |
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bool |
seekEnd |
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This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
- Parameters
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node | File node - the collection to iterate over; it can be a scalar (equivalent to 1-element collection) or "none" (equivalent to empty collection). |
seekEnd | - true if iterator needs to be set after the last element of the node; that is: node.begin() => FileNodeIterator(node, false) node.end() => FileNodeIterator(node, true) |
◆ FileNodeIterator() [3/3]
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
- Parameters
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it | Iterator to be used as initialization for the created iterator. |
◆ equalTo()
◆ operator*()
FileNode cv::FileNodeIterator::operator* |
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const |
returns the currently observed element
◆ operator++() [1/2]
moves iterator to the next node
◆ operator++() [2/2]
moves iterator to the next node
◆ operator+=()
moves iterator forward by the specified offset (possibly negative)
◆ operator=()
◆ readRaw()
FileNodeIterator & cv::FileNodeIterator::readRaw |
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const String & |
fmt, |
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void * |
vec, |
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size_t |
len = (size_t) INT_MAX |
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) |
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Reads node elements to the buffer with the specified format.
Usually it is more convenient to use operator >>
instead of this method.
- Parameters
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fmt | Specification of each array element. See format specification |
vec | Pointer to the destination array. |
len | Number of bytes to read (buffer size limit). If it is greater than number of remaining elements then all of them will be read. |
◆ remaining()
size_t cv::FileNodeIterator::remaining |
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const |
returns the number of remaining (not read yet) elements
◆ blockIdx
size_t cv::FileNodeIterator::blockIdx |
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protected |
◆ blockSize
size_t cv::FileNodeIterator::blockSize |
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protected |
◆ fs
FileStorage::Impl* cv::FileNodeIterator::fs |
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protected |
◆ idx
size_t cv::FileNodeIterator::idx |
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protected |
◆ nodeNElems
size_t cv::FileNodeIterator::nodeNElems |
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protected |
◆ ofs
size_t cv::FileNodeIterator::ofs |
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protected |
The documentation for this class was generated from the following file: