Changeset 93b145a in sasview for src/sas/sasgui/perspectives/corfunc/corfunc_panel.py

Timestamp:

Aug 22, 2016 5:54:51 AM (8 years ago)

Author:

lewis

Branches:

master, ESS_GUI, ESS_GUI_Docs, ESS_GUI_batch_fitting, ESS_GUI_bumps_abstraction, ESS_GUI_iss1116, ESS_GUI_iss879, ESS_GUI_iss959, ESS_GUI_opencl, ESS_GUI_ordering, ESS_GUI_sync_sascalc, costrafo411, magnetic_scatt, release-4.1.1, release-4.1.2, release-4.2.2, ticket-1009, ticket-1094-headless, ticket-1242-2d-resolution, ticket-1243, ticket-1249, ticket885, unittest-saveload

Children:

ff11b21

Parents:

c97d76a

Message:

Show warning when bg is negative and/or results in negative I values

File:

• src/sas/sasgui/perspectives/corfunc/corfunc_panel.py (modified) (1 diff)

src/sas/sasgui/perspectives/corfunc/corfunc_panel.py

@@ -187 +187 @@
             wx.PostEvent(self.parent.parent, StatusEvent(status=msg))
             return
+
+        warning_msg = ""
+        if self.background < 0:
+            warning_msg += "Negative background value entered."
+        if any((self._data.y - self.background) < 0):
+            if warning_msg != "":
+                warning_msg += "\n"
+            warning_msg += "Background value entered results in negative Intensity values."
+        if warning_msg != "":
+            dlg = wx.MessageDialog(self.parent.parent, warning_msg, caption="Warning", style=wx.ICON_EXCLAMATION)
+            dlg.ShowModal()
+            dlg.Destroy()
+
         self._calculator.set_data(self._data)
         self._calculator.lowerq = self.qmin
         self._calculator.upperq = self.qmax
         self._calculator.background = self.background
+
         try:
             self._extrapolated_data = self._calculator.compute_extrapolation()