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#### de9im::matrix

DE-9IM model intersection matrix.

###### Description

This matrix can be used to express spatial relations as defined in Dimensionally Extended 9-Intersection Model.

###### Synopsis

    class de9im::matrix
          : public detail::relate::matrix< 3, 3 >
    {
      // ...
    };

###### Constructor(s)

Function | Description | Parameters
--- | --- | ---
    matrix()
| Initializes all of the matrix elements to F. |

###### Member Function(s)

Function | Description | Parameters | Returns
--- | --- | --- | ---
    char operator[](std::size_t index)
| Subscript operator. | std::size_t: index: The index of the element | The element
    const_iterator begin()
| Returns the iterator to the first element. |  | const RandomAccessIterator
    const_iterator end()
| Returns the iterator past the last element. |  | const RandomAccessIterator
    std::size_t size()
| Returns the number of elements. |  | 9
    const char * data()
| Returns raw pointer to elements. |  | const pointer to array of elements
    std::string str()
| Returns std::string containing elements. |  | string containing elements

###### Header

`#include <boost/geometry/algorithms/detail/relate/de9im.hpp>`

###### See also

- relation