splat: handle table column switching when data are stored as a vector…

… cell

still not handling SEDs correctly, need to look after row numbers somehow

splat/src/main/uk/ac/starlink/splat/data/TableSpecDataImpl.java

@@ -69,7 +69,8 @@ public class TableSpecDataImpl
     /**
      * Create an object by opening a resource and reading its
      * content. Note this throws a SEDSplatException, if the table is
-     * suspected of being an SED (that is it contain vector cells).
+     * suspected of being an SED (that is it contain vector cells)
+     * with more than one row.
      *
      * @param tablespec the name of the resource (file plus optional fragment).
      */
@@ -679,11 +680,14 @@ protected void readColumn( double[] data, int index )
         catch (ClassCastException e) {
             //  Isn't a Number, is it a vector?
             if ( isPrimitiveArray( cellData ) ) {
-                throw new SEDSplatException( dims[0], 
-                      "Table contains vector cells, assuming it is an SED" );
+                //  Read vector data from first row. XXX handle SED.
+                double newdata[] = readCell( 0, index );
+                System.arraycopy( newdata, 0, data, 0, newdata.length );
+            }
+            else {
+                throw new SplatException
+                    ( "Table column ("+ index +")contains an unknown data type" );
             }
-            throw new SplatException
-                ( "Table column ("+ index +")contains an unknown data type" );
         }
         catch (Exception e) {
             throw new SplatException( "Failed reading table column" , e );