// watershed.c (1034, 1)
// wshedBasins(wshed, ppixa, pnalevels) as int
// wshedBasins(L_WSHED *, PIXA **, NUMA **) as l_ok
/// <summary>
/// wshedBasins()
/// </summary>
/// <remarks>
/// </remarks>
/// <include file="..\CHM_Help\IncludeComments.xml" path="Comments/wshedBasins/*"/>
/// <param name="wshed">[in] - </param>
/// <param name="ppixa">[out][optional] - mask of watershed basins</param>
/// <param name="pnalevels">[out][optional] - watershed levels</param>
/// <returns>0 if OK, 1 on error</returns>
public static int wshedBasins(
L_WShed wshed,
out Pixa ppixa,
out Numa pnalevels)
{
if (wshed == null)
{
throw new ArgumentNullException("wshed cannot be Nothing");
}
IntPtr ppixaPtr = IntPtr.Zero;
IntPtr pnalevelsPtr = IntPtr.Zero;
int _Result = Natives.wshedBasins(wshed.Pointer, out ppixaPtr, out pnalevelsPtr);
if (ppixaPtr == IntPtr.Zero)
{
ppixa = null;
}
else
{
ppixa = new Pixa(ppixaPtr);
};
if (pnalevelsPtr == IntPtr.Zero)
{
pnalevels = null;
}
else
{
pnalevels = new Numa(pnalevelsPtr);
};
return(_Result);
}
// watershed.c (305, 1)
// wshedApply(wshed) as int
// wshedApply(L_WSHED *) as l_ok
/// <summary>
/// wshedApply()
/// </summary>
/// <remarks>
/// </remarks>
/// <include file="..\CHM_Help\IncludeComments.xml" path="Comments/wshedApply/*"/>
/// <param name="wshed">[in] - generated from wshedCreate()</param>
/// <returns>0 if OK, 1 on error Iportant note: 1 This is buggy. It seems to locate watersheds that are duplicates. The watershed extraction after complete fill grabs some regions belonging to existing watersheds. See prog/watershedtest.c for testing.</returns>
public static int wshedApply(
L_WShed wshed)
{
if (wshed == null)
{
throw new ArgumentNullException("wshed cannot be Nothing");
}
int _Result = Natives.wshedApply(wshed.Pointer);
return(_Result);
}
// watershed.c (1094, 1)
// wshedRenderColors(wshed) as Pix
// wshedRenderColors(L_WSHED *) as PIX *
/// <summary>
/// wshedRenderColors()
/// </summary>
/// <remarks>
/// </remarks>
/// <include file="..\CHM_Help\IncludeComments.xml" path="Comments/wshedRenderColors/*"/>
/// <param name="wshed">[in] - </param>
/// <returns>pixd initial image with all basins filled, or NULL on error</returns>
public static Pix wshedRenderColors(
L_WShed wshed)
{
if (wshed == null)
{
throw new ArgumentNullException("wshed cannot be Nothing");
}
IntPtr _Result = Natives.wshedRenderColors(wshed.Pointer);
if (_Result == IntPtr.Zero)
{
return(null);
}
return(new Pix(_Result));
}
// watershed.c (250, 1)
// wshedDestroy(pwshed) as Object
// wshedDestroy(L_WSHED **) as void
/// <summary>
/// wshedDestroy()
/// </summary>
/// <remarks>
/// </remarks>
/// <include file="..\CHM_Help\IncludeComments.xml" path="Comments/wshedDestroy/*"/>
/// <param name="pwshed">[in,out] - will be set to null before returning</param>
public static void wshedDestroy(
ref L_WShed pwshed)
{
IntPtr pwshedPtr = IntPtr.Zero; if (pwshed != null)
{
pwshedPtr = pwshed.Pointer;
}
Natives.wshedDestroy(ref pwshedPtr);
if (pwshedPtr == IntPtr.Zero)
{
pwshed = null;
}
else
{
pwshed = new L_WShed(pwshedPtr);
};
}