SDE open rastercatalog, traversing all rasterdataset under rastercatalog

Irasterworkspaceex prasterwex = utilities. opensderasterwsex ();//Access rastercatalog in SDE
 

 

// Connect the rastercatalog in SDE

          Public   Static  Irasterworkspaceex opensderasterwsex () {esrilicense ();  //  Licenseproduce. Engine this method is passed.  //  Licenseproduct. engiengeodb this method is abnormal  Ipropertyset propertyset = New ESRI. ArcGIS. esrisystem. propertysetclass (); propertyset. setproperty (  "  Server  "  , Configuration. sdeserver); propertyset. setproperty (  "  Instance  "  , Configuration. sdeinstance); propertyset. setproperty (  "  Database  "  , Configuration. sdedatabase); propertyset. setproperty ( "  User  "  , Configuration. sdeuser); propertyset. setproperty (  "  Password  "  , Configuration. sdepassword); propertyset. setproperty (  "  Version  "  , Configuration. sdeversion); iworkspacefactory pwsfact = New Sdeworkspacefactory (); irasterworkspaceex PWS = Pwsfact. Open (propertyset, 0 ) As  Irasterworkspaceex;  Return  PWS ;} 

// Traverse all rasterdataset in rastercatalog

Irastercatalog rastercatalog = prasterwex. openrastercatalog (configuration. sderastercatalog ); //  Traverse all rasterdataset under rastercatalog Itable table = rastercatalog As  Itable; icursor cursor = Table. Search (Null , False  ); Irow row = Cursor. nextrow (); List <Irasterdataset> li_rasters = New List <irasterdataset> (); //  Traverse rastercatalog and add all rasterds              While (Row! = Null  ) {Irastercatalogitem rastercatalogitem = Row As Irastercatalogitem; irasterdataset rasterdataset = Rastercatalogitem. rasterdataset; li_rasters.add (rasterdataset); row = Cursor. nextrow ();} 

 

// Rastercatalog:

To store a set of spaces, refer to the same rasterdataset. rastercatalog equivalent to featureclass + raster field and shape field. Each rasterdataset in rastercatalog is equivalent to a feature

Reference: rastercatalog... in the search

 

// Use featureclass to process rastercatalog

Irasterworkspaceex prasterwex = utilities. opensderasterwsex (); //  Access rastercatalog in SDE Irastercatalog rastercatalog = prasterwex. openrastercatalog (configuration. sderastercatalog ); //  Traverse all rasterdataset under rastercatalog    Ipolympus Ppart = New Polylineclass (); //  Line of the intersection  Ifeatureclass PFC = Rastercatalog As  Ifeatureclass; ifeaturecursor pfcc = PFC. Search ( Null , False ); Ifeature pf = Pfcc. nextfeature ();  While (PF! = Null  ){  Bool Partialintersect = False  ; Irastercatalogitem rastercatalogitem = Pf As  Irastercatalogitem; iraster praster = Rastercatalogitem. rasterdataset. createdefaultraster (); //                 String Rastername = PF. get_value (PF. Fields. findfield ( "  Name  " ). Tostring (); //  Rasterdataset name                  If (Rastername = configuration. bottomraster) //  If it is the bottommost Layer  {Pf = Pfcc. nextfeature ();  Continue  ;}