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doc/texinfo/opt_plugin.texi

@@ -431,6 +431,26 @@ Default value: @code{-1}
 Default value: @code{-1}
 @end table
 
+@item Plugin(ExtractElements)
+Plugin(ExtractElements) extracts the elements
+from the view `iView' whose `TimeStep'th values
+are comprised between `MinVal' and `MaxVal'. If
+`iView' < 0, the plugin is run on the current view.
+
+Plugin(ExtractElements) creates one new view.
+
+Numeric options:
+@table @code
+@item MinVal
+Default value: @code{0}
+@item MaxVal
+Default value: @code{1}
+@item TimeStep
+Default value: @code{0}
+@item iView
+Default value: @code{-1}
+@end table
+
 @item Plugin(Gradient)
 Plugin(Gradient) computes the gradient of the
 field in the view `iView'. If `iView' < 0, the