1 files changed, 18 insertions, 0 deletions
diff --git a/funcGenerator.py b/funcGenerator.py
index caccacc..e82f227 100644
--- a/funcGenerator.py
+++ b/funcGenerator.py
@@ -29,6 +29,24 @@ class RampGen:
         self.stop = stop
         self.sweeper = sweeper
 
+    def setCenterAndSpan(self, center, span):
+        self.start = center-span/2
+        self.stop  = center+span/2
+
+    def setCenter(self, center):
+        span = self.stop - self.start;
+        self.setCenterAndSpan(center, span)
+
+    def getCenter(self, center):
+        retrun (self.stop + self.start)/2
+
+    def setSpan(self, span):
+        center = (self.stop + self.start)/2
+        self.setCenterAndSpan(center, span)
+
+    def getSpan(self, span):
+        return self.stop - self.start;
+
     def getValue(self, sweeper=None):
         if sweeper is None and self.sweeper is None:
             print("Error: generator needs sweeper")