diff --git a/graphExample.py b/graphExample.py
index cbb52fa..66d5423 100755
--- a/graphExample.py
+++ b/graphExample.py
@@ -227,13 +227,13 @@ class RIXSgrating(QWidget):
         l.addWidget(w, i+1, 1)
 
 
-        w=QtGui.QGroupBox("Drawing",self)
+        self._wdGrpDraw=w=QtGui.QGroupBox("Drawing",self)
         w.move(470,10)
         l=QtGui.QVBoxLayout(w)
 
         sld={}
         for key,rng,tk,pos in (('r1',(50,800),50,60),('r2',(50,800),50,80),('aa',(0,90),5,20),('bb',(0,90),5,20),('cc',(0,180),5,40),):
-          sl=QtGui.QSlider(QtCore.Qt.Horizontal)
+          sl=QtGui.QSlider(QtCore.Qt.Horizontal,objectName=key)
           sl.setFixedWidth(200);sl.setMinimum(rng[0]);sl.setMaximum(rng[1])
           sl.setValue(self._param[key])
           sl.setTickPosition(QtGui.QSlider.TicksBelow);sl.setTickInterval(tk)
@@ -293,15 +293,23 @@ class RIXSgrating(QWidget):
       p['bb']=(90-geo['bb'])*5
       p['cc']=(90-geo['cc'])
 
-      wGeo=self._wdGrpGeometry
+      grp=self._wdGrpDraw
+      for k,v in p.items():
+        w=grp.findChild(QtGui.QSlider, k)
+        if w is not None:
+          w.blockSignals(True)
+          w.setValue(int(v))
+          w.blockSignals(False)
+
+      grp=self._wdGrpGeometry
       for k,v in geo.items():
-        w=wGeo.findChild(QtGui.QLineEdit, k)
+        w=grp.findChild(QtGui.QLineEdit, k)
         w.setText(f'{v:.6g}')
 
       self._vlsg_raw=raw=vlsg.geometry2raw(**geo)
-      wRaw=self._wdGrpRaw
+      grp=self._wdGrpRaw
       for k,v in raw.items():
-        w=wRaw.findChild(QtGui.QLineEdit, k)
+        w=grp.findChild(QtGui.QLineEdit, k)
         if v is None:
           w.setText('(null)')
         else:
@@ -310,13 +318,12 @@ class RIXSgrating(QWidget):
 
     def sldChanged(self,key,val,*args,**kwargs):
       #print(key,val)
+      try:
+        self._vlsg_geo
+      except AttributeError:
+        pass
       p=self._param
-      if key=='energy':
-        self.setEnergy(val)
-      else:
-        p[key]=val
-        if 'geo' in p:
-          del p['geo']
+      p[key]=val
       self.update()
 
     def btnMoveAllMotors(self):
@@ -362,6 +369,7 @@ class RIXSgrating(QWidget):
         ctr=p['ctr']
         qp = QPainter()
         qp.begin(self)
+        qp.setRenderHints(QPainter.HighQualityAntialiasing)
 
         #plot black background
         w=int(max(szG[0],szD[0])/2)