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📄 geodataengine.cpp

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//将面要素空间数据写入表中当前记录的
//CGeoRecordset& rs -- 表对象(以记录集形式）
//POLYGONFEATURE* pdata   -- 面要素结构指针
{
	long i, j, size;
	CByteArray byarray;
	BYTE *pvalue;

//	rs.SetField(PolygonFs[0].csName, &COleVariant(pdata->ID));
	rs.SetField(PolygonFs[1].csName, &COleVariant(pdata->byType));

	size = pdata->arrayLineID.GetSize();
	byarray.SetSize(sizeof(long)*size);
	for (i=0; i<size; i++)
	{
		pvalue = (BYTE*)&pdata->arrayLineID[i];
		for (j=0; j<sizeof(long); j++)
			byarray[sizeof(long)*i+j] = pvalue[j];
	}
	rs.SetField(PolygonFs[2].csName, &COleVariant(byarray));

	byarray.RemoveAll();
	size = pdata->arrayIslandID.GetSize();
	byarray.SetSize(sizeof(long)*size);
	for (i=0; i<size; i++)
	{
		pvalue = (BYTE*)&pdata->arrayIslandID[i];
		for (j=0; j<sizeof(long); j++)
			byarray[sizeof(long)*i+j] = pvalue[j];
	}
	rs.SetField(PolygonFs[3].csName, &COleVariant(byarray));

	rs.SetField(PolygonFs[4].csName, &COleVariant(pdata->lParentID));
	rs.SetField(PolygonFs[5].csName, &COleVariant(pdata->ptCentroid.x));
	rs.SetField(PolygonFs[6].csName, &COleVariant(pdata->ptCentroid.y));
	rs.SetField(PolygonFs[7].csName, &COleVariant(pdata->rectBound.x1));
	rs.SetField(PolygonFs[8].csName, &COleVariant(pdata->rectBound.y1));
	rs.SetField(PolygonFs[9].csName, &COleVariant(pdata->rectBound.x2));
	rs.SetField(PolygonFs[10].csName, &COleVariant(pdata->rectBound.y2));
	rs.SetField(PolygonFs[11].csName, &COleVariant(pdata->lAttriCode));
}
//---------------------------------------------------------------------------
void CGeoDataEngine::GetPolygonSpatialData(CGeoRecordset& rs, POLYGONFEATURE* pdata)
//获取面要素表中当前记录的空间数据
//CGeoRecordset& rs -- 表对象(以记录集形式）
//POLYGONFEATURE* pdata   -- 面要素结构指针
{
	long i, num;
	COleVariant v;
	long* pvalue;
	
	v = rs.GetField(PolygonFs[0].csName);  pdata->ID = v.lVal;
	v = rs.GetField(PolygonFs[1].csName);  pdata->byType = (BYTE)v.bVal;

	v = rs.GetField(PolygonFs[2].csName);
	num = v.parray->rgsabound[0].cElements/sizeof(long);
	pvalue = (long*)v.parray->pvData;
	pdata->arrayLineID.RemoveAll();
	pdata->arrayLineID.SetSize(num);
	for (i=0; i<num; i++)
		pdata->arrayLineID[i] = pvalue[i];

	v = rs.GetField(PolygonFs[3].csName);
	num = v.parray->rgsabound[0].cElements/sizeof(long);
	pvalue = (long*)v.parray->pvData;
	pdata->arrayIslandID.RemoveAll();
	pdata->arrayIslandID.SetSize(num);
	for (i=0; i<num; i++)
		pdata->arrayIslandID[i] = pvalue[i];

	v = rs.GetField(PolygonFs[4].csName);  pdata->lParentID = v.lVal;
	v = rs.GetField(PolygonFs[5].csName);  pdata->ptCentroid.x = v.dblVal;
	v = rs.GetField(PolygonFs[6].csName);  pdata->ptCentroid.y = v.dblVal;
	v = rs.GetField(PolygonFs[7].csName);  pdata->rectBound.x1 = v.dblVal;
	v = rs.GetField(PolygonFs[8].csName);  pdata->rectBound.y1 = v.dblVal;
	v = rs.GetField(PolygonFs[9].csName);  pdata->rectBound.x2 = v.dblVal;
	v = rs.GetField(PolygonFs[10].csName); pdata->rectBound.y2 = v.dblVal;
	v = rs.GetField(PolygonFs[11].csName); pdata->lAttriCode = v.lVal;
}
//---------------------------------------------------------------------------
void CGeoDataEngine::SetTextData(CGeoRecordset& rs, TEXTFEATURE* pdata)
//将文本要素数据写入表中当前记录的
//CGeoRecordset& rs -- 表对象(以记录集形式）
//TEXTFEATURE* pdata   -- 要素文本结构指针
{
//	rs.SetField(TextFs[0].csName, &COleVariant(pdata->ID));
	rs.SetField(TextFs[1].csName, &COleVariant(pdata->ptPosition.x));
	rs.SetField(TextFs[2].csName, &COleVariant(pdata->ptPosition.y));
	rs.SetField(TextFs[3].csName, &COleVariant(pdata->csContent, VT_BSTRT));
	rs.SetField(TextFs[4].csName, &COleVariant(pdata->byAlignment));
	rs.SetField(TextFs[5].csName, &COleVariant(pdata->dVerticalSpace));
	rs.SetField(TextFs[6].csName, &COleVariant(pdata->csFaceName, VT_BSTRT));
	rs.SetField(TextFs[7].csName, &COleVariant(pdata->lEffect));
	rs.SetField(TextFs[8].csName, &COleVariant(pdata->size.cx));
	rs.SetField(TextFs[9].csName, &COleVariant(pdata->size.cy));
	rs.SetField(TextFs[10].csName, &COleVariant(pdata->lCharExtra));
	rs.SetField(TextFs[11].csName, &COleVariant(pdata->dAngle));
	rs.SetField(TextFs[12].csName, &COleVariant((long)pdata->rgbFore));
	rs.SetField(TextFs[13].csName, &COleVariant((long)pdata->rgbFore));
}
//---------------------------------------------------------------------------
void CGeoDataEngine::GetTextData(CGeoRecordset& rs, TEXTFEATURE* pdata)
//获取文本要素表中当前记录的数据
//CGeoRecordset& rs -- 表对象(以记录集形式）
//TEXTFEATURE* pdata   -- 要素注记结构指针
{
	COleVariant v;
	
	v = rs.GetField(TextFs[0].csName);  pdata->ID = v.lVal;
	v = rs.GetField(TextFs[1].csName);  pdata->ptPosition.x = v.dblVal;
	v = rs.GetField(TextFs[2].csName);  pdata->ptPosition.y = v.dblVal;
	v = rs.GetField(TextFs[3].csName);  pdata->csContent = (LPCTSTR)v.bstrVal;
	v = rs.GetField(TextFs[4].csName);  pdata->byAlignment = (BYTE)v.bVal;
	v = rs.GetField(TextFs[5].csName);	pdata->dVerticalSpace = v.dblVal;
	v = rs.GetField(TextFs[6].csName);	pdata->csFaceName = (LPCTSTR)v.bstrVal;
	v = rs.GetField(TextFs[7].csName);	pdata->lEffect = v.lVal;
	v = rs.GetField(TextFs[8].csName);	pdata->size.cx = v.lVal;
	v = rs.GetField(TextFs[9].csName);	pdata->size.cy = v.lVal;
	v = rs.GetField(TextFs[10].csName);	pdata->lCharExtra = v.lVal;
	v = rs.GetField(TextFs[11].csName);	pdata->dAngle = v.dblVal;
	v = rs.GetField(TextFs[12].csName);	pdata->rgbFore = (COLORREF)v.lVal;
	v = rs.GetField(TextFs[13].csName);	pdata->rgbBack = (COLORREF)v.lVal;
}

//---------------------------------------------------------------------------
void CGeoDataEngine::SetLabelData(CGeoRecordset& rs, LABELFEATURE* pdata)
//将要素注记数据写入表中当前记录的
//CGeoRecordset& rsj -- 表对象(以记录集形式）
//LABELFEATURE* pdata   -- 要素注记结构指针
{
	long i, j, size;
	CByteArray byarray;
	BYTE *pvalue;

//	rs.SetField(LabelFs[0].csName, &COleVariant(pdata->ID));
//	rs.SetField(LabelFs[1].csName, &COleVariant(pdata->byType));
	rs.SetField(LabelFs[0].csName, &COleVariant(pdata->lGeoObjID));
	rs.SetField(LabelFs[1].csName, &COleVariant(pdata->csFieldName, VT_BSTRT));
	rs.SetField(LabelFs[2].csName, &COleVariant(pdata->csContent));

	size = pdata->arrayLocation.GetSize();
	byarray.SetSize(sizeof(DPOINT)*size);
	for (i=0; i<size; i++)
	{
		pvalue = (BYTE*)&pdata->arrayLocation[i];
		for (j=0; j<sizeof(DPOINT); j++)
			byarray[sizeof(DPOINT)*i+j] = pvalue[j];
	}
	rs.SetField(LabelFs[3].csName, &COleVariant(byarray));

	rs.SetField(LabelFs[4].csName, &COleVariant(pdata->byPlaceStyle));
	rs.SetField(LabelFs[5].csName, &COleVariant(pdata->csFaceName, VT_BSTRT));
	rs.SetField(LabelFs[6].csName, &COleVariant(pdata->lEffect));
	rs.SetField(LabelFs[7].csName, &COleVariant(pdata->size.cx));
	rs.SetField(LabelFs[80].csName, &COleVariant(pdata->size.cy));
	rs.SetField(LabelFs[9].csName, &COleVariant(pdata->lCharExtra));
	rs.SetField(LabelFs[10].csName, &COleVariant(pdata->dAngle));
	rs.SetField(LabelFs[11].csName, &COleVariant((long)pdata->rgbFore));
	rs.SetField(LabelFs[12].csName, &COleVariant((long)pdata->rgbFore));
}
//---------------------------------------------------------------------------
void CGeoDataEngine::GetLabelData(CGeoRecordset& rs, LABELFEATURE* pdata)
//获取要素注记表中当前记录的数据
//CGeoRecordset& rs -- 表对象(以记录集形式）
//LABELFEATURE* pdata   -- 要素注记结构指针
{
	long i, num;
	COleVariant v;
	DPOINT* pvalue;
	
//	v = rs.GetField(LabelFs[0].csName);  pdata->ID = v.lVal;
//	v = rs.GetField(LabelFs[1].csName);  pdata->byType = (BYTE)v.bVal;
	v = rs.GetField(LabelFs[0].csName);  pdata->lGeoObjID = v.lVal;
	v = rs.GetField(LabelFs[1].csName);  pdata->csFieldName = (LPCTSTR)v.bstrVal;
	v = rs.GetField(LabelFs[2].csName);  pdata->csContent = (LPCTSTR)v.bstrVal;

	v = rs.GetField(LabelFs[3].csName);
	num = v.parray->rgsabound[0].cElements/sizeof(DPOINT);
	pvalue = (DPOINT*)v.parray->pvData;
	pdata->arrayLocation.RemoveAll();
	pdata->arrayLocation.SetSize(num);
	for (i=0; i<num; i++)
		pdata->arrayLocation[i] = pvalue[i];

	v = rs.GetField(LabelFs[4].csName);  pdata->byPlaceStyle = (BYTE)v.bVal;
	v = rs.GetField(LabelFs[5].csName);	 pdata->csFaceName = (LPCTSTR)v.bstrVal;
	v = rs.GetField(LabelFs[6].csName);	 pdata->lEffect = v.lVal;
	v = rs.GetField(LabelFs[7].csName);	 pdata->size.cx = v.lVal;
	v = rs.GetField(LabelFs[8].csName);  pdata->size.cy = v.lVal;
	v = rs.GetField(LabelFs[9].csName);  pdata->lCharExtra = v.lVal;
	v = rs.GetField(LabelFs[10].csName);  pdata->dAngle = v.dblVal;
	v = rs.GetField(LabelFs[11].csName);  pdata->rgbFore = (COLORREF)v.lVal;
	v = rs.GetField(LabelFs[12].csName);  pdata->rgbBack = (COLORREF)v.lVal;
}
//---------------------------------------------------------------------------
void CGeoDataEngine::SetSymbolData(CGeoRecordset& rs, SYMBOLFEATURE* pdata)
//将要素符号数据写入表中当前记录的
//CGeoRecordset& rsj -- 表对象(以记录集形式）
//SYMBOLFEATURE* pdata   -- 要素符号结构指针
{
//	rs.SetField(SymbolFs[0].csName, &COleVariant(pdata->ID));
//	rs.SetField(SymbolFs[1].csName, &COleVariant(pdata->byType));
	rs.SetField(SymbolFs[0].csName, &COleVariant(pdata->lGeoObjID));
	rs.SetField(SymbolFs[1].csName, &COleVariant(pdata->lCode));
	rs.SetField(SymbolFs[2].csName, &COleVariant(pdata->dSize));
	rs.SetField(SymbolFs[3].csName, &COleVariant((long)pdata->rgbFore));
	rs.SetField(SymbolFs[4].csName, &COleVariant((long)pdata->rgbBack));
	rs.SetField(SymbolFs[5].csName, &COleVariant(pdata->dDistance));
}
//---------------------------------------------------------------------------
void CGeoDataEngine::GetSymbolData(CGeoRecordset& rs, SYMBOLFEATURE* pdata)
//获取要素符号表中当前记录的数据
//CGeoRecordset& rs -- 表对象(以记录集形式）
//SYMBOLFEATURE* pdata   -- 要素符号结构指针
{
	COleVariant v;

//	v = rs.GetField(SymbolFs[0].csName);  pdata->ID = v.lVal;
//	v = rs.GetField(SymbolFs[1].csName);  pdata->byType = (BYTE)v.bVal;
	v = rs.GetField(SymbolFs[0].csName);  pdata->lGeoObjID = v.lVal;
	v = rs.GetField(SymbolFs[1].csName);  pdata->lCode = v.lVal;
	v = rs.GetField(SymbolFs[2].csName);  pdata->dSize = v.dblVal;
	v = rs.GetField(SymbolFs[3].csName);  pdata->rgbFore = (COLORREF)v.lVal;
	v = rs.GetField(SymbolFs[4].csName);  pdata->rgbBack = (COLORREF)v.lVal;
	v = rs.GetField(SymbolFs[5].csName);  pdata->dDistance = v.dblVal;
}

//---------------------------------------------------------------------------
void CGeoDataEngine::SetLayerData(CGeoRecordset& rs, LAYERFEATURE* pdata)
//将要素层数据写入要素层表的当前记录
//CGeoRecordset& rs -- 表对象(以记录集形式）
//LAYERFEATURE* pdata   -- 要素层对象指针
{
	rs.SetField(LayerFs[0].csName, &COleVariant(pdata->csName, VT_BSTRT));
	rs.SetField(LayerFs[1].csName, &COleVariant(pdata->byType));
	rs.SetField(LayerFs[2].csName, &COleVariant(pdata->ptLocation.x));
	rs.SetField(LayerFs[3].csName, &COleVariant(pdata->ptLocation.y));
	rs.SetField(LayerFs[4].csName, &COleVariant(pdata->lScale));
	rs.SetField(LayerFs[5].csName, &COleVariant(pdata->dMinView));
	rs.SetField(LayerFs[6].csName, &COleVariant(pdata->dMaxView));
	rs.SetField(LayerFs[7].csName, &COleVariant(pdata->byVisible));
}
//---------------------------------------------------------------------------
void CGeoDataEngine::GetLayerData(CGeoRecordset& rs, LAYERFEATURE* pdata)
//获取要素层表当前记录的有关层的数据
//CGeoRecordset& rs -- 表对象(以记录集形式）
//LAYERFEATURE* pdata   -- 要素层对象指针
{
	COleVariant v;

	v = rs.GetField(LayerFs[0].csName);  pdata->csName = (LPCTSTR)v.bstrVal;
	v = rs.GetField(LayerFs[1].csName);  pdata->byType = (BYTE)v.bVal;
	v = rs.GetField(LayerFs[2].csName);  pdata->ptLocation.x = v.dblVal;
	v = rs.GetField(LayerFs[3].csName);	 pdata->ptLocation.y = v.dblVal;
	v = rs.GetField(LayerFs[4].csName);  pdata->lScale = v.lVal;
	v = rs.GetField(LayerFs[5].csName);  pdata->dMinView = v.dblVal;
	v = rs.GetField(LayerFs[6].csName);  pdata->dMaxView = v.dblVal;
	v = rs.GetField(LayerFs[7].csName);  pdata->byVisible = (BYTE)v.bVal;
}
//---------------------------------------------------------------------------
void CGeoDataEngine::SetWorkspaceData(CGeoRecordset& rs, WORKSPACEFEATURE* pdata)
//将工作区数据写入工作区数据库表
//CGeoRecordset& rs    --  数据库表记录集对象
//WORKSPACEFEATURE* pdata   -- 工作区对象指针
{
	rs.MoveFirst();
	rs.Edit();      
	rs.SetField(WorkspaceFs[0].csName, &COleVariant(pdata->csName, VT_BSTRT));
	rs.SetField(WorkspaceFs[1].csName, &COleVariant(pdata->dtDate));
	rs.SetField(WorkspaceFs[2].csName, &COleVariant(pdata->csLevel, VT_BSTRT));
	rs.SetField(WorkspaceFs[3].csName, &COleVariant(pdata->dLongitude1));
	rs.SetField(WorkspaceFs[4].csName, &COleVariant(pdata->dLatitude1));
	rs.SetField(WorkspaceFs[5].csName, &COleVariant(pdata->dLongitude2));
	rs.SetField(WorkspaceFs[6].csName, &COleVariant(pdata->dLatitude2));
	rs.SetField(WorkspaceFs[7].csName, &COleVariant(pdata->x1));
	rs.SetField(WorkspaceFs[8].csName, &COleVariant(pdata->y1));
	rs.SetField(WorkspaceFs[9].csName, &COleVariant(pdata->x2));
	rs.SetField(WorkspaceFs[10].csName, &COleVariant(pdata->y2));
	rs.SetField(WorkspaceFs[11].csName, &COleVariant(pdata->byXYSystem));
	rs.SetField(WorkspaceFs[12].csName, &COleVariant(pdata->byZSystem));
	rs.SetField(WorkspaceFs[13].csName, &COleVariant(pdata->byProjection));
	rs.SetField(WorkspaceFs[14].csName, &COleVariant(pdata->byUnit));
	rs.SetField(WorkspaceFs[15].csName, &COleVariant(pdata->byStyle));
	rs.SetField(WorkspaceFs[16].csName, &COleVariant(pdata->byDisplayProjection));
}
//---------------------------------------------------------------------------
void CGeoDataEngine::GetWorkspaceData(CGeoRecordset& rs, WORKSPACEFEATURE* pdata)
//获取工作区数据库表的数据
//CGeoRecordset& rs    --  数据库表记录集对象
//WORKSPACEFEATURE* pdata   -- 工作区对象指针
{
	COleVariant v;

	rs.MoveFirst();
	v = rs.GetField(WorkspaceFs[0].csName);  pdata->csName = (LPCTSTR)v.bstrVal;
	v = rs.GetField(WorkspaceFs[1].csName);  pdata->dtDate = COleDateTime(v.date);
	v = rs.GetField(WorkspaceFs[2].csName);  pdata->csLevel= (LPCTSTR)v.bstrVal;
	v = rs.GetField(WorkspaceFs[3].csName);  pdata->dLongitude1 = v.dblVal;
	v = rs.GetField(WorkspaceFs[4].csName);  pdata->dLatitude1 = v.dblVal;
	v = rs.GetField(WorkspaceFs[5].csName);  pdata->dLongitude2 = v.dblVal;
	v = rs.GetField(WorkspaceFs[6].csName);  pdata->dLatitude2 = v.dblVal;
	v = rs.GetField(WorkspaceFs[7].csName);  pdata->x1 = v.dblVal;
	v = rs.GetField(WorkspaceFs[8].csName);  pdata->y1 = v.dblVal;
	v = rs.GetField(WorkspaceFs[9].csName);  pdata->x2 = v.dblVal;
	v = rs.GetField(WorkspaceFs[10].csName); pdata->y2 = v.dblVal;
	v = rs.GetField(WorkspaceFs[11].csName); pdata->byXYSystem = (BYTE)v.bVal;
	v = rs.GetField(WorkspaceFs[12].csName); pdata->byZSystem = (BYTE)v.bVal;
	v = rs.GetField(WorkspaceFs[13].csName); pdata->byProjection = (BYTE)v.bVal;
	v = rs.GetField(WorkspaceFs[14].csName); pdata->byUnit = (BYTE)v.bVal;
	v = rs.GetField(WorkspaceFs[15].csName); pdata->byStyle = (BYTE)v.bVal;
	v = rs.GetField(WorkspaceFs[16].csName); pdata->byDisplayProjection = (BYTE)v.bVal;
}
//---------------------------------------------------------------------------
BOOL CGeoDataEngine::CreateNewLayer(CGeoDatabase& db, LAYERFEATURE* pdata)
//建立一个新的要素层及相关的数据库表
{
	CdbRecordset rs;
	CdbField fd;

	rs = db.TableDefs[comLayerTableName].OpenRecordset(dbOpenTable, dbAppendOnly);
	rs.AddNew();
	SetLayerData(rs, pdata);
	rs.Update();
	rs.Close();

	if (!CreatePointTable(db, pdata->csName+(LPCTSTR)comPointSuffix))  return(FALSE);

	if (!CreateSymbolTable(db, pdata->csName+(LPCTSTR)comPointSymbolSuffix))  return(FALSE);
	if (!CreateLabelTable(db, pdata->csName+(LPCTSTR)comPointLabelSuffix))  return(FALSE);

	if (!CreateLineTable(db, pdata->csName+(LPCTSTR)comLineSuffix))  return(FALSE);
	if (!CreateSymbolTable(db, pdata->csName+(LPCTSTR)comLineSymbolSuffix))  return(FALSE);
	if (!CreateLabelTable(db, pdata->csName+(LPCTSTR)comLineLabelSuffix))  return(FALSE);
	
	if (!CreatePointTable(db, pdata->csName+(LPCTSTR)comPolygonSuffix))  return(FALSE);
	if (!CreateSymbolTable(db, pdata->csName+(LPCTSTR)comPolygonSymbolSuffix))  return(FALSE);
	if (!CreateLabelTable(db, pdata->csName+(LPCTSTR)comPolygonLabelSuffix))  return(FALSE);

	if (!CreateTextTable(db, pdata->csName+(LPCTSTR)comTextSuffix))  return(FALSE);

	return(TRUE);
}

//---------------------------------------------------------------------------
void CGeoDataEngine::RenameLayer(CGeoDatabase& db, CString oldname, CString newname)
//更新一个要素层及相关的数据库表的名字
{
	CdbTableDef td;

	db.TableDefs[oldname+(LPCTSTR)comPointSuffix].SetName(newname+(LPCTSTR)comPointSuffix);
	db.TableDefs[oldname+(LPCTSTR)comPointSymbolSuffix].SetName(newname+(LPCTSTR)comPointSymbolSuffix);
	db.TableDefs[oldname+(LPCTSTR)comPointLabelSuffix].SetName(newname+(LPCTSTR)comPointLabelSuffix);

	db.TableDefs[oldname+(LPCTSTR)comLineSuffix].SetName(newname+(LPCTSTR)comLineSuffix);
	db.TableDefs[oldname+(LPCTSTR)comLineSymbolSuffix].SetName(newname+(LPCTSTR)comLineSymbolSuffix);
	db.TableDefs[oldname+(LPCTSTR)comLineLabelSuffix].SetName(newname+(LPCTSTR)comLineLabelSuffix);

	db.TableDefs[oldname+(LPCTSTR)comPolygonSuffix].SetName(newname+(LPCTSTR)comPolygonSuffix);
	db.TableDefs[oldname+(LPCTSTR)comPolygonSymbolSuffix].SetName(newname+(LPCTSTR)comPolygonSymbolSuffix);
	db.TableDefs[oldname+(LPCTSTR)comPolygonLabelSuffix].SetName(newname+(LPCTSTR)comPolygonLabelSuffix);

	db.TableDefs[oldname+(LPCTSTR)comTextSuffix].SetName(newname+(LPCTSTR)comTextSuffix);
}

//---------------------------------------------------------------------------
void CGeoDataEngine::BeginTrans()
//开始启动一个新事务
{ 
	m_dbWorkspace.BeginTrans();
}
//---------------------------------------------------------------------------
void CGeoDataEngine::CommitTrans()
//完成事务处理
{ 
	m_dbWorkspace.CommitTrans();
}
//---------------------------------------------------------------------------
void CGeoDataEngine::Rollback()
//回滚事务处理
{ 
	m_dbWorkspace.Rollback();
}
123

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