enhance context menu, draw object center, recenter if image out of view

ModuleFixTarget.py

@@ -224,15 +224,14 @@ class WndFixTarget(QWidget):
 
     tree.setContextMenuPolicy(Qt.ActionsContextMenu)
 
-    act = QAction("delete", self)
-    act.triggered.connect(self.tree_ctx_delete)
-    tree.addAction(act)
-
     act = QAction("center in view", self)
     act.triggered.connect(self.tree_ctx_center)
     tree.addAction(act)
 
-    #contextMenuEvent
+    act = QAction("delete", self)
+    act.triggered.connect(self.tree_ctx_delete)
+    tree.addAction(act)
+
   def tree_get_path(self):
     path=[]
     it=self._tree.currentItem()
@@ -277,10 +276,13 @@ class WndFixTarget(QWidget):
         vb=wnd.vb
         grp=wnd._goTracked
         go=grp.childItems()[path[0]]
-        vb.autoRange(items=(go,))
-        #r1=vb.viewRect()
-        #r2=vb.itemBoundingRect(go)
-        #if not r1.intersects(r2):
+        #vb.autoRange(items=(go,))
+        r1=vb.viewRect()
+        r2=vb.itemBoundingRect(go)
+        #r=vb.viewRect()
+        vb.setRange(rect=r2)
+        r1.translate(r2.center()-r1.center())
+        vb.setRange(r1)
 
   def load_file(self, filename=None):
     app = QApplication.instance()

pyqtUsrObj.py

@@ -461,6 +461,15 @@ class FixTargetFrame(pg.ROI):
           lh=QLineF(x-rx, y, x+rx, y)
           lv=QLineF(x, y-ry, x, y+ry)
           p.drawLines(lh, lv)
+
+      #plot center of all feducials
+      ctr=np.array(f['pos']).mean(axis=0)
+      x, y=ctr  # ;print(x,y)
+      lh=QLineF(x-rx, y, x+rx, y)
+      lv=QLineF(x, y-ry, x, y+ry)
+      p.drawLines(lh, lv)
+      p.drawEllipse(x-rx/2, y-ry/2, rx, ry)
+
     else:
       assert('unknown feducial type')
 
@@ -741,6 +750,8 @@ if __name__=='__main__':
   #viRoi.addTranslateHandle([.7, .5], axes=None, item=None, name=None, index=None) #quadrat
   vb.addItem(viRoi)
 
+  #autorange not working, as all rois are in ItemGroup
+  vb.setRange(QtCore.QRectF(-300, -400, 900+300, 500+400))
 
   childTree(vb)
 

swissmx.py

@@ -1081,10 +1081,10 @@ class WndSwissMx(QMainWindow, Ui_MainWindow):
 
         #if none of the image is visible, recenter it
         r1=self.vb.viewRect()
-        #r2=self.vb.itemBoundingRect(self._goImg)
-        r2=self.vb.itemBoundingRect(self._goBeamMarker)
+        r2=self.vb.itemBoundingRect(self._goImg)
         if not r1.intersects(r2):
-          self.vb.autoRange(items=(self._goImg,))
+          r1.translate(r2.center()-r1.center())
+          self.vb.setRange(r1)
 
         try:
           pln=geo._fitPlane