RemoveCnsType

Description

Removes all constraints of a specific constraint type from one or more objects without affecting any constraints of a different type on the object.

Tip: If you want to remove constraints by name instead, use the RemoveCns command.

Scripting Syntax

    RemoveCnsType( Type, [ConstrainedObj] )

Parameters

Parameter | Type | Description
Type | String | Type of constraint to remove.
ConstrainedObj | String | List of constrained objects. Default Value: Selected objects

Examples

VBScript Example

    '
    ' This example creates a little planetary scene and applies 2 constraints
    ' from the planet to the ring: a Position and a Scaling constraint. Then
    ' it removes only the Scaling constraint by using the RemoveCnsType command
    ' and verifies this by printing out a list of constraints on each object
    ' before and after removing the constraints.
    '
    ' Create a sphere that will serve as the constraining object
    set oPlanet = CreatePrim( "Sphere", "NurbsSurface", "Planet" )

    ' Create a ring to be constrained by the planet and scale it
    set oRing = CreatePrim( "Disc", "NurbsSurface", "Ring" )
    Scale , 2.3, 1, 2.3, siAbsolute, siParent, siObj, siXYZ

    ' Apply a Position constraint between the ring and the planet. Notice that
    ' you have to pass the name of the object instead of its object variable with
    ' this command because the command changes that variable to a different type
    ApplyCns "Position", oRing.Name, oPlanet.Name, true

    ' Now apply a Scaling constraint between the ring and the planet
    ApplyCns "Scaling", oRing.Name, oPlanet.Name, true

    ' Check to see which constraints are currently set
    getCnsInfo oPlanet
    getCnsInfo oRing

    ' Remove only the Scaling constraint of the ring,
    ' (the Position constraint is kept automatically)
    RemoveCnsType "Scaling", oRing

    ' Check to see which constraints remain
    getCnsInfo oPlanet
    getCnsInfo oRing

    ' Display the constraint relationship in all the default views and
    ' the default camera view. This is the equivalent of turning on
    ' "Relation" and "Relation Info" in the view visibility options.
    SetValue "Views.*.*.camvis.*constraint*", True
    SetValue "Camera.camvis.*constraint*", True

    ' This function just saves us time and typing
    function getCnsInfo( in_constrained_obj )
       set oFoundCns = in_constrained_obj.Kinematics.Constraints
       if oFoundCns.Count > 0 then
           LogMessage "Found the following constraints on the " & in_constrained_obj & ":"
           for each c in oFoundCns
              LogMessage vbTab & c.Name
           next
       else
           LogMessage "No constraints found on " & in_constrained_obj
       end if
    end function

    ' Output of the above script:
    '
    ' ...before removing constraint:
    'INFO : "No constraints found on Planet"
    'INFO : "Found the following constraints on the Ring:"
    'INFO : " Position Cns"
    'INFO : " ScalingCns"
    '
    ' ...after removing constraint:
    'INFO : "No constraints found on Planet"
    'INFO : "Found the following constraints on the Ring:"
    'INFO : " Position Cns"

See Also

RemoveAllCns | SIApplyCns | SIApplyConstraint

Autodesk Softimage v7.5