Changeset 446

Timestamp:

02/15/05 17:33:24 (20 years ago)

Author:

kil064

Message:

add function convertStokes

Location:

trunk/src

Files:

• SDPol.cc (modified) (2 diffs)
• SDPol.h (modified) (2 diffs)

trunk/src/SDPol.cc

@@ -106 +106 @@
 }
 
-DataManager* SDStokesEngine::makeObject (const String&,
-                                                 const Record& spec)
+DataManager* SDStokesEngine::makeObject (const String&, const Record& spec)
 {
     DataManager* dmPtr = new SDStokesEngine(spec);
@@ -403 +402 @@
    return stokesFlags;
 }
+
+Stokes::StokesTypes SDPolUtil::convertStokes(Int val, Bool toStokes, Bool linear)
+{   
+   Stokes::StokesTypes stokes = Stokes::Undefined;
+   if (toStokes) {
+      if (val==0) {
+         stokes = Stokes::I;
+      } else if (val==1) {
+         stokes = Stokes::Q;
+      } else if (val==2) {
+         stokes = Stokes::U;
+      } else if (val==3) {
+         stokes = Stokes::V;
+      }   
+   } else if (linear) {
+      if (val==0) {
+         stokes = Stokes::XX;
+      } else if (val==1) {
+         stokes = Stokes::YY;
+      } else if (val==2) {
+         stokes = Stokes::XY;         // Real(XY)
+      } else if (val==3) {
+         stokes = Stokes::XY;         // Imag(XY)
+      }
+   } else {
+      if (val==0) {
+         stokes = Stokes::RR;
+      } else if (val==1) {
+         stokes = Stokes::LL;
+      } else if (val==2) {
+         stokes = Stokes::RL;
+      } else if (val==3) {
+         stokes = Stokes::RL;
+      }
+   }
+//
+   return stokes;
+}

trunk/src/SDPol.h

@@ -35 +35 @@
 #include <casa/aips.h>
 #include <casa/Arrays/Array.h>
+#include <measures/Measures/Stokes.h>
 #include <tables/Tables/BaseMappedArrayEngine.h>
 
@@ -71 +72 @@
                                              casa::Bool doLinear);
 
+// Find the Stokes type for the given polarization axis (0,1,2,3)
+// You can ask for STokes or raw correltions (linear or circular)
+   static casa::Stokes::StokesTypes convertStokes(casa::Int val, casa::Bool toStokes, 
+                                                  casa::Bool linear);
 };