Add Complexity to Your Filter List Conditions

Specify Multiple Criteria in a Selection Set Filter List

Define Rules for Selection Sets

Use Wild-Card Patterns in Selection Set Filter Criteria

 

Create and Edit AutoCAD Entities > Work with Selection Sets > Define Rules for Selection Sets > 

Add Complexity to Your Filter List Conditions

When you specify multiple selection criteria, AutoCAD assumes the selected object must meet each criterion. But you can qualify your criteria in other ways. For numeric items, you can specify relational operations (for example, the radius of a circle must be greater than or equal to 5.0). And for all items, you can specify logical operations (for example, Text or Mtext).

Use a -4 DXF code to indicate a relational operator in your filter specification. Specify the operator as a string. The allowable relational operators are shown in the following table.

Logical operators in filter lists are also indicated by a -4 group code, and the operator is a string, but the operators must be paired. The opening operator is preceded by a less-than symbol (<), and the closing operator is followed by a greater-than symbol (>). The following table lists the logical operators allowed in selection set filtering.

Sub Ch4_FilterRelational()

   Dim sstext As AcadSelectionSet

   Dim FilterType(2) As Integer

   Dim FilterData(2) As Variant

   Set sstext = ThisDrawing.SelectionSets.Add("SS5")

      
   FilterType(0) = 0
      
   FilterData(0) = "Circle"
      
   FilterType(1) = -4
      
   FilterData(1) = ">="
      
   FilterType(2) = 40
      
   FilterData(2) = 5#
      
      
   sstext.SelectOnScreen FilterType, FilterData
      
End Sub
    

Sub Ch4_FilterOrTest()

   Dim sstext As AcadSelectionSet

   Dim FilterType(3) As Integer

   Dim FilterData(3) As Variant

   Set sstext = ThisDrawing.SelectionSets.Add("SS6")

   FilterType(0) = -4

   FilterData(0) = "<or"

   FilterType(1) = 0

   FilterData(1) = "TEXT"

   FilterType(2) = 0

   FilterData(2) = "MTEXT"

   FilterType(3) = -4

   FilterData(3) = "or>"

      
   sstext.SelectOnScreen FilterType, FilterData
      
End Sub