public unsafe SeqTest()
{
using (CvMemStorage storage = new CvMemStorage(0))
{
Random rand = new Random();
CvSeq <int> seq = new CvSeq <int>(SeqType.EltypeS32C1, storage);
// push
for (int i = 0; i < 10; i++)
{
int push = seq.Push(rand.Next(100));//seq.Push(i);
Console.WriteLine("{0} is pushed", push);
}
Console.WriteLine("----------");
// enumerate
Console.WriteLine("contents of seq");
foreach (int item in seq)
{
Console.Write("{0} ", item);
}
Console.WriteLine();
// sort
CvCmpFunc <int> func = delegate(int a, int b)
{
return(a.CompareTo(b));
};
seq.Sort(func);
// convert to array
int[] array = seq.ToArray();
Console.WriteLine("contents of sorted seq");
foreach (int item in array)
{
Console.Write("{0} ", item);
}
Console.WriteLine();
Console.WriteLine("----------");
// pop
for (int i = 0; i < 10; i++)
{
int pop = seq.Pop();
Console.WriteLine("{0} is popped", pop);
}
Console.ReadKey();
}
}
public static extern void cvSeqSort(IntPtr seq, CvCmpFunc func, IntPtr userdata);
public static extern IntPtr cvSeqSearch(IntPtr seq, IntPtr elem, CvCmpFunc func, [MarshalAs(UnmanagedType.Bool)] bool is_sorted, out int elem_idx);
public static extern int cvSeqPartition(IntPtr seq, IntPtr storage, ref IntPtr labels, CvCmpFunc is_equal, IntPtr userdata);
/// <summary>
/// シーケンスの要素を，指定した比較関数を用いてソートする (cvSeqSort).
/// </summary>
/// <param name="func">要素の関係に応じて，負・0・正の値を返す比較関数</param>
#else
/// <summary>
/// Sorts sequence element using the specified comparison function (cvSeqSort).
/// </summary>
/// <param name="func">The comparison function that returns negative, zero or positive value depending on the elements relation (see the above declaration and the example below) - similar function is used by qsort from C runtime except that in the latter userdata is not used </param>
#endif
public virtual void Sort(CvCmpFunc <T> func)
{
Cv.SeqSort(this, func);
}
/// <summary>
/// シーケンスの中から要素を検索する (cvSeqSearch).
/// </summary>
/// <param name="elem">検索する要素</param>
/// <param name="func">要素の関係に応じて，負・0・正の値を返す比較関数</param>
/// <param name="isSorted">シーケンスがソート済みか否かを示すフラグ</param>
/// <param name="elemIdx">出力パラメータ．見つかった要素のインデックス．</param>
#else
/// <summary>
/// Searches element in sequence (cvSeqSearch).
/// </summary>
/// <param name="elem">The element to look for </param>
/// <param name="func">The comparison function that returns negative, zero or positive value depending on the elements relation</param>
/// <param name="isSorted">Whether the sequence is sorted or not. </param>
/// <param name="elemIdx">Output parameter; index of the found element. </param>
/// <returns></returns>
#endif
public virtual T Search(T elem, CvCmpFunc <T> func, bool isSorted, out int elemIdx)
{
return(Cv.SeqSearch(this, elem, func, isSorted, out elemIdx));
}
/// <summary>
/// データシーケンスを同値類（同じクラスに属すると定義されたデータ群）に分割する
/// </summary>
/// <param name="storage">同値類として分割されたシーケンスの保存領域．nullの場合は，seq->storage を使用する．</param>
/// <param name="labels">出力パラメータ．入力シーケンスの各要素に割り振られた（分割結果を表す）0から始まるラベルシーケンスへのポインタのポインタ．</param>
/// <param name="isEqual">2つのシーケンス要素が同じクラスである場合，関係関数は 0以外を返す． そうでなければ0を返す．分割アルゴリズムは，同値基準として関係関数の推移閉包を用いる．</param>
/// <returns></returns>
#else
/// <summary>
/// Splits sequence into equivalence classes
/// </summary>
/// <param name="storage">The storage to store the sequence of equivalence classes. If it is null, the function uses seq->storage for output labels. </param>
/// <param name="labels">Output parameter. Double pointer to the sequence of 0-based labels of input sequence elements. </param>
/// <param name="isEqual">The relation function that should return non-zero if the two particular sequence elements are from the same class, and zero otherwise. The partitioning algorithm uses transitive closure of the relation function as equivalence criteria. </param>
/// <returns></returns>
#endif
public int Partition(CvMemStorage storage, out CvSeq labels, CvCmpFunc <T> isEqual)
{
return(Cv.SeqPartition(this, storage, out labels, isEqual));
}
/// <summary>
/// シーケンスの中から要素を検索する (cvSeqSearch).
/// </summary>
/// <param name="elem">検索する要素</param>
/// <param name="func">要素の関係に応じて，負・0・正の値を返す比較関数</param>
/// <param name="isSorted">シーケンスがソート済みか否かを示すフラグ</param>
/// <param name="elemIdx">出力パラメータ．見つかった要素のインデックス．</param>
#else
/// <summary>
/// Searches element in sequence (cvSeqSearch).
/// </summary>
/// <param name="elem">The element to look for </param>
/// <param name="func">The comparison function that returns negative, zero or positive value depending on the elements relation</param>
/// <param name="isSorted">Whether the sequence is sorted or not. </param>
/// <param name="elemIdx">Output parameter; index of the found element. </param>
/// <returns></returns>
#endif
public virtual IntPtr Search(IntPtr elem, CvCmpFunc func, bool isSorted, out int elemIdx)
{
return(Cv.SeqSearch(this, elem, func, isSorted, out elemIdx));
}
internal static extern int cvSeqPartition(Seq seq, MemStorage storage, out Seq labels, CvCmpFunc is_equal, IntPtr userdata);
internal static extern IntPtr cvSeqSearch(Seq seq, IntPtr elem, CvCmpFunc func, int is_sorted, out int elem_idx, IntPtr userdata);
internal static extern void cvSeqSort(Seq seq, CvCmpFunc func, IntPtr userdata);
