TolerancePrecision Example

Using Programming Languages other than VBA

Sub Example_TolerancePrecision()
   ' This example creates an aligned dimension in model space and
   ' uses TolerancePrecision to allow the user to change the
   ' precision of the dimension tolerance

	Dim dimObj As AcadDimAligned
	Dim point1(0 To 2) As Double, point2(0 To 2) As Double
	Dim location(0 To 2) As Double
	Dim oldTolerance As String, newTolerance As String

	' Define the dimension
	point1(0) = 0: point1(1) = 5: point1(2) = 0
	point2(0) = 5.12345678: point2(1) = 5: point2(2) = 0
	location(0) = 5: location(1) = 7: location(2) = 0

	' Create an aligned dimension object in model space
	Set dimObj = ThisDrawing.ModelSpace.AddDimAligned(point1, point2, location)

	' Enable and setup tolerance display
	dimObj.ToleranceDisplay = acTolSymmetrical
	dimObj.ToleranceLowerLimit = -0.0001
	dimObj.ToleranceUpperLimit = 0.005

	ThisDrawing.Application.ZoomAll

	' Store old tolerance value as default for input box
	oldTolerance = dimObj.TolerancePrecision

	' Allow the user to change the precision for the dimension tolerance
	newTolerance = InputBox("Enter a new tolerance precision for the dimension.  The value must range from 0 to 8.", "Dimension Tolerance Precision", oldTolerance)

	Select Case newTolerance
		Case 0: newTolerance = acDimPrecisionZero
		Case 1: newTolerance = acDimPrecisionOne
		Case 2: newTolerance = acDimPrecisionTwo
		Case 3: newTolerance = acDimPrecisionThree
		Case 4: newTolerance = acDimPrecisionFour
		Case 5: newTolerance = acDimPrecisionFive
		Case 6: newTolerance = acDimPrecisionSix
		Case 7: newTolerance = acDimPrecisionSeven
		Case 8: newTolerance = acDimPrecisionEight
		Case Else
			MsgBox "The tolerance precision has not been changed."
			Exit Sub
	End Select

	dimObj.TolerancePrecision = newTolerance   ' Commit changes to tolerance precision

	ThisDrawing.Regen acAllViewports

	' Read back and display the dimension tolerance precision
	newTolerance = dimObj.TolerancePrecision
	MsgBox "The tolerance precision has been set to " & newTolerance & " decimal places"
End Sub

 

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