/// <summary>
/// 求指定点的上游(到电源点)路径
/// </summary>
/// <param name="startFid"></param>
/// <param name="retDistance"></param>
/// <param name="retPathFids"></param>
/// <param name="retPathNodeCount"></param>
/// <returns>没有上游(到电源点)路径时，返回false. 否则返回true.</returns>
public static bool CYZUpPath(int startFid, ref float retDistance, ref List <int> retPathFids)
{
bool flag = false;
try
{
int retPathNodeCount = 0;
IntPtr ppp = IntPtr.Zero;
flag = upPath(startFid, ref retDistance, ref retPathNodeCount, ref ppp);
if (!flag)
{
return(false);
}
int reByteCount = retPathNodeCount * sizeof(int);
byte[] retBytes = new byte[reByteCount];
int iii = 0;
while (iii < reByteCount)
{
retBytes[iii] = Marshal.ReadByte(ppp, iii);
iii++;
}
iii = 0;
//retPathFids = new int[retPathNodeCount];
retPathFids = new List <int>();
while (iii < retPathNodeCount)
{
int xfid = (int)retBytes[iii * 4] +
((int)retBytes[iii * 4 + 1]) * 256 +
((int)retBytes[iii * 4 + 2]) * 65536 +
((int)retBytes[iii * 4 + 3]) * 16777216;
retPathFids.Add(xfid);
iii++;
}
TopologyMethod.removeMemery(ppp, retPathNodeCount);
}
catch (Exception ex) { }
return(flag);
}
/// <summary>
///
/// </summary>
/// <param name="startFid"></param>
/// <param name="retPathsFids"></param>
/// <returns></returns>
public static bool CYZDownPath2(int startFid, ref List <List <int> > retPathsFids)
{
bool flag = false;
try
{
IntPtr ppp1 = IntPtr.Zero;
IntPtr ppp2 = IntPtr.Zero;
int retPathsCount = 0;
flag = downPath2(startFid, ref retPathsCount, ref ppp1, ref ppp2);
if (!flag)
{
return(false);
}
if (retPathsCount <= 0)
{
return(false);
}
if (ppp1 == IntPtr.Zero)
{
return(false);
}
if (ppp2 == IntPtr.Zero)
{
return(false);
}
//读取ppp1指针的内存数据. retPathsCount个int
int reByteCount = retPathsCount * sizeof(int);
byte[] retBytes = new byte[reByteCount];
int iii = 0;
while (iii < reByteCount)
{
retBytes[iii] = Marshal.ReadByte(ppp1, iii);
iii++;
}
iii = 0;
int vNodeCount = 0;
List <int> perPathCount = new List <int>();
while (iii < retPathsCount)
{
int xcount = (int)retBytes[iii * 4] +
((int)retBytes[iii * 4 + 1]) * 256 +
((int)retBytes[iii * 4 + 2]) * 65536 +
((int)retBytes[iii * 4 + 3]) * 16777216;
perPathCount.Add(xcount);
vNodeCount += xcount;
iii++;
}
//读取ppp2指针的内存数据. vNodeCount个int
reByteCount = vNodeCount * sizeof(int);
retBytes = new byte[reByteCount];
iii = 0;
while (iii < reByteCount)
{
retBytes[iii] = Marshal.ReadByte(ppp2, iii);
iii++;
}
iii = 0;
int vNodeIndex = 0;
retPathsFids = new List <List <int> >();
for (int i = 0; i < retPathsCount; i++)
{
List <int> pfids = new List <int>();
for (int j = 0; j < perPathCount[i]; j++)
{
int xfid = (int)retBytes[vNodeIndex * 4] +
((int)retBytes[vNodeIndex * 4 + 1]) * 256 +
((int)retBytes[vNodeIndex * 4 + 2]) * 65536 +
((int)retBytes[vNodeIndex * 4 + 3]) * 16777216;
pfids.Add(xfid);
++vNodeIndex;
}
retPathsFids.Add(pfids);
}
TopologyMethod.removeMemery(ppp1, retPathsCount);
TopologyMethod.removeMemery(ppp2, vNodeCount);
}
catch (Exception ex) { }
return(flag);
}