/// <summary>
/// ��ȡVCTע��ʵ��ڵ�
/// </summary>
private AnnotationNode ReadAnnotationNode()
{
if (this.m_streamReader != null)
{
string strLine = ""; //��ȡ�������ֻ���
if (m_bFoundAnnotationBegin == false)
{
strLine = this.ReadLine(true);
//����ע��ʵ��ڵ�Ŀ�ʼ��ǡ�AnnotationBegin��
if (strLine.IndexOf("AnnotationBegin", System.StringComparison.OrdinalIgnoreCase) > -1)
{
m_bFoundAnnotationBegin = true;
}
}
if (m_bFoundAnnotationBegin == true)
{
strLine = this.ReadLine(true);
//����ע��ʵ��ڵ�Ľ�����ǡ�AnnotationEnd��
if (strLine.IndexOf("AnnotationEnd", System.StringComparison.OrdinalIgnoreCase) > -1)
return null;
else
{
AnnotationNode annotationNode = new AnnotationNode();
//�Ȼ�ȡע��ʵ���ʶ��
int nEntityID = -1;
if (VCTFile.ConvertToInt32(strLine,out nEntityID))
annotationNode.EntityID = nEntityID;
else
{
LogAPI.WriteLog("��ȡע��ʵ��ı�ʶ��ʧ�ܣ����������Ƿ���ϱ���");
LogAPI.WriteLog("��ȡ���������������" + m_nReadLineCount + "��");
return null;
}
//�ٻ�ȡҪ�ر���
annotationNode.FeatureCode = this.ReadLine(false);
//��ȡͼ�α��ֱ���
annotationNode.Representation = this.ReadLine(false);
//��ȡע�ǵ���������
int nAnnotationType = -1;
if (VCTFile.ConvertToInt32(this.ReadLine(false),out nAnnotationType))
annotationNode.AnnotationType = nAnnotationType;
else
{
LogAPI.WriteLog("��ȡע��ʵ�����������ʧ�ܣ����������Ƿ���ϱ���");
LogAPI.WriteLog("��ȡ���������������" + m_nReadLineCount + "��");
return null;
}
//��ȡע�ǵ�����
annotationNode.Text = this.ReadLine(false);
//��ȡע�ǵ�����ͽǶ�
strLine = this.ReadLine(false);
int nIndex = strLine.LastIndexOf(HeadNode.Separator);
if (nIndex > 0 && nIndex < strLine.Length)
{
annotationNode.PointLocation = new PointInfoNode(strLine.Substring(0,nIndex));
//��ȡע�ǵ�
double nAngle = 0;
if (VCTFile.ConvertToDouble(strLine.Substring(nIndex + 1),out nAngle))
annotationNode.Angle = nAngle;
return annotationNode;
}
}
}
}
return null;
}
/// <summary>
/// д��VCTע��ʵ��ڵ�
/// </summary>
/// <param name="annotationNode">VCTע��ʵ��ڵ�</param>
public bool WriteAnnotationNode(AnnotationNode annotationNode)
{
if (this.m_streamWriter != null)
{
if (this.m_bFoundAnnotationBegin == false)
{
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("PolygonEnd");
this.m_streamWriter.StreamWriterTemp.WriteLine("AnnotationBegin");
this.m_bFoundAnnotationBegin = true;
}
this.m_streamWriter.StreamWriterTemp.WriteLine(annotationNode);
this.m_streamWriter.StreamWriterTemp.Flush();
return true;
}
return false;
}
/// <summary>
/// ��ȡVCTע��ʵ��ڵ�
/// </summary>
public override EntityNode GetEntityNode()
{
try
{
AnnotationNode pAnnotationNode = new AnnotationNode();
//��������ͳһ����Ϊ����ע��
pAnnotationNode.AnnotationType = Convert.ToInt32(Metadata.MetaDataFile.GraphConfig.GetGraphSymbol("ANNOTATIONFEATURETYPE", "SingPointAnnotation"));
IFeature pFeature = this.Feature as IFeature;
if (pFeature != null)
{
///��ʶ�븳ֵ
int dBSMIndex = -1;
dBSMIndex = this.Feature.Fields.FindField(m_strEntityIDFiled);
if (dBSMIndex != -1)
pAnnotationNode.EntityID = Convert.ToInt32(this.Feature.get_Value(dBSMIndex));
///Ҫ�ش��븳ֵ
pAnnotationNode.FeatureCode = this.FeatureCode;
///ͼ�α��ָ�ֵ
//pAnnotationNode.Representation = pFeature.Class.AliasName;
///ע�����긳ֵ
IGeometry5 pArea = pFeature.Shape as IGeometry5;
if (pArea != null)
{
PointInfoNode pPTInfoNode = new PointInfoNode(pArea.CentroidEx.X, pArea.CentroidEx.Y);
pAnnotationNode.PointLocation = pPTInfoNode;
}
m_AnnotationNode = pAnnotationNode;
return pAnnotationNode;
}
return null;
}
catch (Exception ex)
{
LogAPI.WriteErrorLog(ex);
return null;
}
}
