AE添加CAD文件

void CAoEx1View::OnAddcad()

{

CString strFilter;

strFilter = "Auto CAD(*.dxf)| *.dxf|Auto CAD(*.dwg)|*.dwg||";

CFileDialog pDlg(TRUE,NULL,NULL,

OFN_ALLOWMULTISELECT|OFN_EXPLORER|OFN_LONGNAMES|OFN_FILEMUSTEXIST|OFN_HIDEREADONLY,

(LPCTSTR)strFilter,

NULL);

CString strTitle =L"select CAD file";

pDlg.m_ofn.lpstrTitle = strTitle;

if(IDCANCEL ==pDlg.DoModal()) return;

CString strExt,strPath;

strExt = pDlg.GetFileExt();

strPath = pDlg.GetPathName();

if(!(strExt.IsEmpty()))

{

int temp;

temp = strPath.ReverseFind('//');

strPath = strPath.Left(temp);

}

IWorkspaceFactoryPtr ipCadWKSFact(CLSID_CadWorkspaceFactory);

IWorkspacePtr ipwspace;

HRESULT hr = ipCadWKSFact->OpenFromFile((_bstr_t)strPath,NULL,&ipwspace);

if(FAILED(hr)) return;

IFeatureWorkspacePtr ipWorkspace(ipwspace);

IFeatureLayerPtr ipCadFeatureLayer;

IFeatureDatasetPtr ipFeatureDataset;

IFeatureClassPtr ipFeatureClass;

 

CString strTemp;

int iPathLength;

int i;

iPathLength =strPath.GetLength();

POSITION ps;

ps= pDlg.GetStartPosition();

ISetPtr ipSet(CLSID_Set);

while (ps != NULL)

{

strTemp = pDlg.GetNextPathName(ps);

strTemp = strTemp.Right(strTemp.GetLength() - (iPathLength + 1));

hr = ipWorkspace->OpenFeatureDataset((_bstr_t)strTemp,&ipFeatureDataset);

if(FAILED(hr)) return;

IFeatureClassContainerPtr ipFeatureClassContainer(ipFeatureDataset);

long ITemp;

ipFeatureClassContainer->get_ClassCount(&ITemp);

enum esriFeatureType featuretype;

BSTR aliasname;

for(i = 0;i<ITemp;i++)

{

hr = ipFeatureClassContainer->get_Class(i,&ipFeatureClass);

if(FAILED(hr)) return;

hr = ipFeatureClass->get_FeatureType(&featuretype);

if(FAILED(hr)) return;

if (featuretype == esriFTCoverageAnnotation)

{

CoCreateInstance(CLSID_CadAnnotationLayer,NULL,CLSCTX_ALL,IID_IFeatureLayer,(void**)&ipCadFeatureLayer);

if(ipCadFeatureLayer == NULL) return;

}

else

{

CoCreateInstance(CLSID_CadFeatureLayer,NULL,CLSCTX_ALL,IID_IFeatureLayer,(void**)&ipCadFeatureLayer);

if(ipCadFeatureLayer == NULL) return;

}

ipFeatureClass->get_AliasName(&aliasname);

ipCadFeatureLayer->put_Name(aliasname);

ipCadFeatureLayer->putref_FeatureClass(ipFeatureClass);

m_ipMap = m_ctrlMap.get_Map();

hr = m_ipMap->AddLayer(ipCadFeatureLayer);

if(FAILED(hr)) return;

}

}

IEnvelopePtr ipEnv;

IActiveViewPtr ipActiveView(m_ipMap);

hr = ipActiveView->get_FullExtent(&ipEnv);

if(FAILED(hr)) return;

hr = ipActiveView->put_Extent(ipEnv);

if(FAILED(hr)) return;

hr = ipActiveView->Refresh();

if(FAILED(hr)) return;

}