Changeset 139 for trunk/src/SDMath.cc

Timestamp:

12/24/04 13:21:30 (19 years ago)

Author:

mar637

Message:

Added inSitu version of multiply/scale

File:

• trunk/src/SDMath.cc (modified) (1 diff)

trunk/src/SDMath.cc

@@ -204 +204 @@
 }
 
+void SDMath::multiplyInSitu(SDMemTable* in, Float factor) {
+  SDMemTable* sdmt = new SDMemTable(*in);
+  Table t = sdmt->table();
+  ArrayColumn<Float> spec(t,"SPECTRA");  
+  for (uInt i=0; i < t.nrow(); i++) {
+    MaskedArray<Float> marr(sdmt->rowAsMaskedArray(i));
+    marr *= factor;
+    spec.put(i, marr.getArray());
+  }
+  in = sdmt;
+  delete sdmt;sdmt=0;
+}
+
 CountedPtr<SDMemTable>
 SDMath::multiply(const CountedPtr<SDMemTable>& in, Float factor)