Add Invert option to Threshold Filter

Also modified Threshold.xml test to exercise the new option.

Applications/ParaView/Testing/XML/CMakeLists.txt

@@ -156,6 +156,7 @@ SET (TESTS_WITH_INLINE_COMPARES
   ${CMAKE_CURRENT_SOURCE_DIR}/SaveLargeScreenshot.xml
   ${CMAKE_CURRENT_SOURCE_DIR}/Slice.xml
   ${CMAKE_CURRENT_SOURCE_DIR}/TestIsoVolume.xml
+  ${CMAKE_CURRENT_SOURCE_DIR}/Threshold.xml
   ${CMAKE_CURRENT_SOURCE_DIR}/TransferFunctionResetOnVisibilityChange.xml
   ${CMAKE_CURRENT_SOURCE_DIR}/UpdateTransferFunctionRanges.xml
   ${CMAKE_CURRENT_SOURCE_DIR}/XYChart.xml
@@ -499,7 +500,6 @@ list(APPEND TESTS_WITH_BASELINES
   ${CMAKE_CURRENT_SOURCE_DIR}/TimeInspector.xml
   ${CMAKE_CURRENT_SOURCE_DIR}/TimeStepProgressBar.xml
   ${CMAKE_CURRENT_SOURCE_DIR}/Tessellate.xml
-  ${CMAKE_CURRENT_SOURCE_DIR}/Threshold.xml
   ${CMAKE_CURRENT_SOURCE_DIR}/UndoRedo.xml
   ${CMAKE_CURRENT_SOURCE_DIR}/UndoRedo1.xml
   ${CMAKE_CURRENT_SOURCE_DIR}/UndoRedo2.xml

Applications/ParaView/Testing/XML/Threshold.xml

@@ -16,4 +16,8 @@
   <pqevent object="pqClientMainWindow/propertiesDock/propertiesPanel/scrollArea/qt_scrollarea_viewport/scrollAreaWidgetContents/PropertiesFrame/ProxyPanel/ThresholdBetween/ThresholdBetween_1/DoubleLineEdit" command="set_full_precision_text" arguments="0.44" />
   <pqevent object="pqClientMainWindow/propertiesDock/propertiesPanel/Accept" command="activate" arguments="" />
   <pqevent object="pqClientMainWindow/variableToolbar/actionScalarBarVisibility" command="set_boolean" arguments="false" />
+  <pqcompareview object="pqClientMainWindow/centralwidget/MultiViewWidget/CoreWidget/qt_tabwidget_stackedwidget/MultiViewWidget1/Frame.0/CentralWidgetFrame/Viewport" baseline="$PARAVIEW_DATA_ROOT/Baseline/Threshold.png" width="300" height="300" />
+  <pqevent object="pqClientMainWindow/propertiesDock/propertiesPanel/scrollArea/qt_scrollarea_viewport/scrollAreaWidgetContents/PropertiesFrame/ProxyPanel/Invert/CheckBox" command="set_boolean" arguments="true" />
+  <pqevent object="pqClientMainWindow/propertiesDock/propertiesPanel/Accept" command="activate" arguments="" />
+  <pqcompareview object="pqClientMainWindow/centralwidget/MultiViewWidget/CoreWidget/qt_tabwidget_stackedwidget/MultiViewWidget1/Frame.0/CentralWidgetFrame/Viewport" baseline="$PARAVIEW_DATA_ROOT/Baseline/ThresholdInvert.png" width="300" height="300" />
 </pqevents>

Documentation/release/dev/threshold-invert-option.md

+# Threshold filter has new Invert option
+
+The **Threshold** filter usually extracts cells that fall within lower and upper bounds of a data array. A new **Invert** option instead causes it to extract cells outside the lower and upper bounds.

ParaViewCore/ServerManager/SMApplication/Resources/filters.xml

@@ -7354,6 +7354,16 @@ array.
           results.
         </Documentation>
       </IntVectorProperty>
+      <IntVectorProperty command="SetInvert"
+                         default_values="0"
+                         name="Invert"
+                         number_of_elements="1">
+        <BooleanDomain name="bool" />
+        <Documentation>Invert the threshold results. That is, cells that would have been in the
+          output with this option off are excluded, while cells that would have been excluded from
+          the output are included.
+        </Documentation>
+      </IntVectorProperty>
       <Hints>
         <Visibility replace_input="2" />
       </Hints>

Testing/Data/Baseline/ThresholdInvert.png.sha512

+6bd8a3546ac58c25448d06dd7ec385021499c9633629a2b96f88ed49abf2cd9c383fa7d9658195705aa21412581ca4240760c8f0f7a6c8a979ba980b907cba62