Changes between Version 1 and Version 2 of CodeSnippets/GetStaticExtents

Timestamp:

10/15/08 20:38:35 (16 years ago)

Author:

ShaikEsu

Comment:

--

CodeSnippets/GetStaticExtents

@@ -33 +33 @@
 #!cpp
 
-  public IPolygon GetExtents()
-  {
-    IPolygon retpolygon;
-    ISelectAggregates pselagree = (ISelectAggregates)FDOConnection.CreateCommand(CommandType.CommandType_SelectAggregates);
- 
-    pselagree.SetFeatureClassName(System.IO.Path.GetFileNameWithoutExtension(OpenedFile));
-    IFeatureReader FDOReader = pselagree.Execute();
-    FgfGeometryFactory GeoFac = new FgfGeometryFactory();
+    public IPolygon GetExtents()
+        {
+            IPolygon retpolygon;
+            ISelectAggregates pselagree = (ISelectAggregates)FDOConnection.CreateCommand(CommandType.CommandType_SelectAggregates);
+            pselagree.SetFeatureClassName(System.IO.Path.GetFileNameWithoutExtension(OpenedFile));
+            
+            IdentifierCollection props = pselagree.PropertyNames;
+            Expression exp = Expression.Parse("SpatialExtents(Geometry)");
+            ComputedIdentifier se = new ComputedIdentifier("Extents", exp);
 
-    Byte[] Tmppts = FDOReader.GetGeometry("Geometry");
+            props.Add(se);
 
-    IGeometry Geo = GeoFac.CreateGeometryFromFgf(Tmppts);
+            IDataReader FDOReader = pselagree.Execute();
+            FgfGeometryFactory GeoFac = new FgfGeometryFactory();
 
-    retpolygon = (IPolygon)Geo;
+            FDOReader.ReadNext();
+            Byte[] Tmppts = FDOReader.GetGeometry("Extents");
 
-    return retpolygon;
+            IGeometry Geo = GeoFac.CreateGeometryFromFgf(Tmppts);
 
-  }
+            retpolygon = (IPolygon)Geo;
+
+            return retpolygon;
+
+        }
 
 }}}