/// <summary>
/// 写入多边形节点
/// </summary>
/// <param name="pVCTFile">VCT文件对象</param>
public void WritePolygonNodes(VCTFile pVCTFile)
{
if (this.m_pOleDbConnection != null && m_pOleDbConnection.State == ConnectionState.Open)
{
PolygonNodeTable pPolygonNodeTable = new PolygonNodeTable(m_pOleDbConnection);
LineNodeExTable pLineNodeExTable = new LineNodeExTable(m_pOleDbConnection);
//按面标识码
string strPolygonNodeOrderBy = pPolygonNodeTable.FieldName_EntityID;
DataTable dataTablePolygon = pPolygonNodeTable.GetRecords("", "", strPolygonNodeOrderBy);
//按面标识码、在面的边界线集合中的索引排序
string strLineNodeExOrderBy = pLineNodeExTable.FieldName_PolygonID + "," + pLineNodeExTable.FieldName_LineIndex;
DataTable dataTableLine = pLineNodeExTable.GetRecords(pLineNodeExTable.FieldName_PolygonID + ",-" + pLineNodeExTable.FieldName_EntityID + "*" + pLineNodeExTable.FieldName_IsReverse, "", "", strLineNodeExOrderBy);
PolygonNodeSimple polygonNode = null;
//LineNodeEx lineNode = null;
//LineNodeEx lineNodeUp = null;
int nPolygonID = -1;
int nEntityID = -1;
int nEntityIDUp = -1;
int j = 0;
while (dataTablePolygon.Rows.Count > 0)
{
for (int i = 0; i < dataTablePolygon.Rows.Count; i++)
{
polygonNode = new PolygonNodeSimple();
pPolygonNodeTable.GetEntityNodeByDataRow(dataTablePolygon.Rows[i], ref polygonNode);
while (dataTableLine.Rows.Count > 0)
{
for (; j < dataTableLine.Rows.Count; j++)
{
//lineNodeUp = null;
//lineNode = new LineNodeEx();
//pLineNodeExTable.GetLineNodeByDataRow(dataTableLine.Rows[j], ref lineNode, false);
nPolygonID = Convert.ToInt32(dataTableLine.Rows[j][0]);
nEntityID = Convert.ToInt32(dataTableLine.Rows[j][1]);
if (nPolygonID == polygonNode.EntityID)
{
if (nEntityIDUp != -1)
{
if (nEntityIDUp == nEntityID)
{
continue;
}
}
polygonNode.LineNodes.Add(nEntityID);
}
else
{
break;
}
nEntityIDUp = nEntityID;
}
if (j == dataTableLine.Rows.Count)
{
if (dataTableLine.Rows.Count < pLineNodeExTable.MaxRecordCount)
break;
dataTableLine = pLineNodeExTable.GetNextRecords();
j = 0;
}
else
break;
}
pVCTFile.WritePolygonNode(polygonNode);
}
if (dataTablePolygon.Rows.Count < pPolygonNodeTable.MaxRecordCount)
break;
dataTablePolygon = pPolygonNodeTable.GetNextRecords();
}
}
}
/// <summary>
/// д��VCT��ʵ��ڵ�
/// </summary>
/// <param name="polygonNode">VCT��ʵ��ڵ�</param>
public bool WritePolygonNode(PolygonNodeSimple polygonNode)
{
if (this.m_streamWriter != null && this.m_streamWriter.StreamWriterTemp != null)
{
if (this.m_bFoundPolygonBegin == false)
{
if (this.m_bFoundLineBegin == false)
{
if (this.m_bFoundPointBegin == false)
{
this.m_streamWriter.WriteLine("PointBegin");
this.m_bFoundPointBegin = true;
}
this.m_streamWriter.WriteLine("PointEnd");
this.m_streamWriter.WriteLine("LineBegin");
this.m_bFoundLineBegin = true;
}
this.m_streamWriter.StreamWriterTemp.WriteLine("LineEnd");
this.m_streamWriter.StreamWriterTemp.WriteLine("PolygonBegin");
this.m_bFoundPolygonBegin = true;
}
this.m_streamWriter.StreamWriterTemp.WriteLine(polygonNode);
this.m_streamWriter.StreamWriterTemp.Flush();
return true;
}
return false;
}
public void GetEntityNodeByDataRow(DataRow dataRow, ref PolygonNodeSimple polygonNode)
{
if (dataRow != null)
{
if (polygonNode != null)
{
EntityNode entityNode = polygonNode as EntityNode;
base.GetEntityNodeByDataRow(dataRow, ref entityNode);
polygonNode.PolygonType = dataRow[FieldName_PolygonType] == System.DBNull.Value ? -1 : Convert.ToInt32(dataRow[FieldName_PolygonType]);
double dX = dataRow[FieldName_X] == System.DBNull.Value ? 0.0 : Convert.ToDouble(dataRow[FieldName_X]);
double dY = dataRow[FieldName_Y] == System.DBNull.Value ? 0.0 : Convert.ToDouble(dataRow[FieldName_Y]);
PointInfoNode pointInfoNode = new PointInfoNode(dX, dY);
polygonNode.LablePointInfoNode = pointInfoNode;
polygonNode.LineNodes = new System.Collections.Generic.List<int>();
//polygonNode.ComposeType = dataRow[FieldName_ComposeType] == null ? -1 : Convert.ToInt32(dataRow[FieldName_ComposeType]);
}
}
}
