add functions for converting series units to/from strings, use it in xml info example

Author: coalsont

Cifti/CiftiSeriesMap.cxx

@@ -34,6 +34,50 @@
 using namespace cifti;
 using namespace std;
 
+CiftiSeriesMap::Unit CiftiSeriesMap::stringToUnit(const AString& string, bool& ok)
+{
+    ok = true;
+    if (string == "SECOND")
+    {
+        return SECOND;
+    } else if (string == "HERTZ") {
+        return HERTZ;
+    } else if (string == "METER") {
+        return METER;
+    } else if (string == "RADIAN") {
+        return RADIAN;
+    }
+    ok = false;
+    return SECOND;
+}
+
+AString CiftiSeriesMap::unitToString(const CiftiSeriesMap::Unit& theUnit)
+{
+    switch (theUnit)
+    {
+        case SECOND:
+            return "SECOND";
+        case HERTZ:
+            return "HERTZ";
+        case METER:
+            return "METER";
+        case RADIAN:
+            return "RADIAN";
+    }
+    CiftiAssert(false);
+    return "UNKNOWN";
+}
+
+vector<CiftiSeriesMap::Unit> CiftiSeriesMap::getAllUnits()
+{
+    vector<Unit> ret;
+    ret.push_back(SECOND);
+    ret.push_back(HERTZ);
+    ret.push_back(METER);
+    ret.push_back(RADIAN);
+    return ret;
+}
+
 void CiftiSeriesMap::readXML1(XmlReader& xml)
 {
     vector<AString> mandAttrs(2), optAttrs(1, "TimeStart");

Cifti/CiftiSeriesMap.h

@@ -66,6 +66,10 @@ namespace cifti
         void setUnit(const Unit& unit) { m_unit = unit; }
         void setLength(const int64_t& length) { CiftiAssert(length > 0); m_length = length; }
 
+        static Unit stringToUnit(const AString& string, bool& ok);
+        static AString unitToString(const Unit& theUnit);
+        static std::vector<Unit> getAllUnits();
+        
         CiftiMappingType* clone() const { return new CiftiSeriesMap(*this); }
         MappingType getType() const { return SERIES; }
         int64_t getLength() const { return m_length; }

example/xmlinfo.cxx

@@ -93,22 +93,7 @@ int main(int argc, char** argv)
                     cout << "Series, length " << myMap.getLength() << endl;
                     cout << "   Start: " << myMap.getStart() << endl;
                     cout << "   Step: " << myMap.getStep() << endl;
-                    cout << "   Unit: ";
-                    switch (myMap.getUnit())
-                    {
-                        case CiftiSeriesMap::SECOND:
-                            cout << "Seconds" << endl;
-                            break;
-                        case CiftiSeriesMap::HERTZ:
-                            cout << "Hertz" << endl;
-                            break;
-                        case CiftiSeriesMap::METER:
-                            cout << "Meters" << endl;
-                            break;
-                        case CiftiSeriesMap::RADIAN:
-                            cout << "Radians" << endl;
-                            break;
-                    }
+                    cout << "   Unit: " << AString_to_std_string(CiftiSeriesMap::unitToString(myMap.getUnit())) << endl;
                     break;
                 }
             }