Thickness Property (ActiveX)

Specifies the distance a 2D AutoCAD object is extruded above or below its elevation.

Supported platforms: Windows only

Signature

VBA:

object.Thickness

object

Type: Arc, Attribute, AttributeReference, Circle, Line, LWPolyline, Point, Polyline, Shape, Solid, Text, Trace

The objects this property applies to.

Property Value

Read-only: No

Type: Double

The default is 0.0.

Remarks

Changing the thickness of an object changes its Z direction thickness.

Changing the thickness of a 3D polyline, dimension, or floating viewport has no effect.

Examples

VBA:

Sub Example_Thickness()
    ' This example creates a circle in model space
    ' and changes the thickness of the circle.
   
    Dim circleObj As AcadCircle
    Dim centerPoint(0 To 2) As Double
    Dim radius As Double
    
    ' Define the circle
    centerPoint(0) = 0#: centerPoint(1) = 0#: centerPoint(2) = 0#
    radius = 5#
    
    ' Create the Circle object in model space
    Set circleObj = ThisDrawing.ModelSpace.AddCircle(centerPoint, radius)
    ZoomAll
    
    ' Find the current thickness of the circle
    Dim currThickness As Double
    currThickness = circleObj.Thickness
    MsgBox "The thickness of the circle is " & circleObj.Thickness, vbInformation, "Thickness Example"
    
    ' Change the thickness of the circle
    circleObj.Thickness = currThickness + 3
    circleObj.Update
    
    ' Change the direction of the viewport so that you can
    ' view the change made to the thickness. Once you change
    ' the direction, you must reset the active viewport.
    Dim NewDirection(0 To 2) As Double
    NewDirection(0) = -1: NewDirection(1) = -1: NewDirection(2) = 1
    ThisDrawing.ActiveViewport.direction = NewDirection
    ThisDrawing.ActiveViewport = ThisDrawing.ActiveViewport
    MsgBox "The thickness of the circle is now " & circleObj.Thickness, vbInformation, "Thickness Example"
    
End Sub

Visual LISP:

(vl-load-com)
(defun c:Example_Thickness()
    ;; This example creates a circle in model space
    ;; and changes the thickness of the circle.
    (setq acadObj (vlax-get-acad-object))
    (setq doc (vla-get-ActiveDocument acadObj))
    
    ;; Define the circle
    (setq centerPoint (vlax-3d-point 0 0 0)  
          radius 5)
    
    ;; Create the Circle object in model space
    (setq modelSpace (vla-get-ModelSpace doc))
    (setq circleObj (vla-AddCircle modelSpace centerPoint radius))
    (vla-ZoomAll acadObj)
    
    ;; Find the current thickness of the circle
    (setq currThickness (vla-get-Thickness circleObj))
    (alert (strcat "The thickness of the circle is " (rtos currThickness 2)))
    
    ;; Change the thickness of the circle
    (vla-put-Thickness circleObj (+ currThickness 3))
    (vla-Update circleObj)
    
    ;; Change the direction of the viewport so that you can
    ;; view the change made to the thickness. Once you change
    ;; the direction, you must reset the active viewport.
    (setq NewDirection (vlax-3d-point -1 -1 1))
    (setq activeViewport (vla-get-ActiveViewport doc))
    (vla-put-Direction activeViewport NewDirection)
    (vla-put-ActiveViewport doc activeViewport)
    (vla-ZoomAll acadObj)

    (alert (strcat "The thickness of the circle is now " (rtos (vla-get-Thickness circleObj) 2)))
    
)