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StaticKinematicState

Object Hierarchy | Related C++ Class: StaticKinematicState | Supported Parameter List: StaticKineState

Inheritance

SIObject
   ProjectItem
       Property
          StaticKinematicState

Description

The StaticKinematicState object represents the base pose of an object. Objects that have access to the StaticKinematicState object include: X3DObject and Cluster.

The static kinematic state on objects is created when applying envelopes, deform by spine or deform by curve. Currently an object can only have one static kinematic state. It represents a snapshot of the pose of the object when the Envelope, DeformBySpine or DeformByCage operator was applied. It is also changed when doing Set Reference Pose in the Animate|Deform|Envelope menu. If an object has all 3 operations applied on the same object they will all share the same static kinematic state. When doing a cage deform on top of a envelope for example the later operation will reset the static kinematic state. This means that it's usually better to be in the reference pose when adding these deforms (reset actor).

The static kinematic state on clusters is created when the cluster is translated, rotated or scaled by the MoveComponent operator. The static kinematic state is the transformation applied by the MoveComponent operator on the cluster. There is one or possibly two static kine state per move component on a cluster. Therefore you end-up with multiple static kine states on a cluster if you transform the cluster many times. The second static kine state on the cluster is created when moving clusters in relative mode.

Methods

Properties

Examples

1. VBScript Example

'=======================================================================================
'  This script demonstrates how to get the StaticKinematicState object
'  from a cluster. Notice that this object only exists after the cluster
'  has been transformed.
'=======================================================================================

' Set up a cluster on a torus 
set oRoot = ActiveSceneRoot
set oTorus = oRoot.AddGeometry( "Torus","MeshSurface" )
set oPimple = oTorus.ActivePrimitive.Geometry.AddCluster( _
          siVertexCluster, _
          "Pimple", _
          Array( 0,2,8,10 ) _
          )

' Print out position information before moving the cluster
getBasePositionInfo oPimple 

' Translate the cluster in X and Z
Translate oPimple, 0, 3.54998625973143, -0.354998625973143, siRelative, siView, siObj, siXYZ

' Print out position information after applying envelope
getBasePositionInfo oPimple


function getBasePositionInfo( in_cluster )
   ' The cluster will only have it after a MoveComponent
   ' operator has been applied
   if in_cluster.HasStaticKinematicState then
       set oBasePose = in_cluster.GetStaticKinematicStates
       for each oPose in oBasePose
          ' Create an SIVector3 math object to hold the translation
          set oTranslation = XSIMath.CreateVector3 

          ' Print out the translation information from the base pose
          oPose.Transform.GetTranslation oTranslation
          logmessage "The StaticKinematicState property position is " _
                     & "(as X, Y, Z): " & oTranslation.X & ", " _
                     & oTranslation.Y & ", " & oTranslation.Z
       next
   else
       ' Default situation
       logmessage "There's no StaticKinematicState property on this object."
   end if
end function


'=======================================================================================
' Output of above script is:
'
'INFO : "There's no StaticKinematicState property on this object."
'INFO : "The StaticKinematicState property position is (as X, Y, Z): 0, 0, 0"
'INFO : "The StaticKinematicState property position is (as X, Y, Z): 0, 3.54998625973143, -0.354998625973143"

2. VBScript Example

'=======================================================================================
'  This script demonstrates how to get the StaticKinematicState object
'  from an object. Notice that the StaticKinematicState only exists 
'  after an envelope or deform operation has been performed on the object.
'=======================================================================================

' Set up a null to envelope 
set oRoot = ActiveSceneRoot
set oNull = oRoot.AddPrimitive( "Null","MyNull")
oNull.Kinematics.Global.Parameters( "posy" ).Value = 6.0

' Set up the object to use as an envelope
set oCube = oRoot.AddGeometry( "Cube","MeshSurface" )

' Print out position information before applying envelope
getBasePositionInfo oCube 

' Set up the envelope
oCube.ApplyEnvelope oNull 

' Print out position information after applying envelope
getBasePositionInfo oCube 


function getBasePositionInfo( in_object )
   ' The object will only have it after an envelope or deform
   ' operator has been applied
   if in_object.HasStaticKinematicState then
       set oTranslation = XSIMath.CreateVector3
       in_object.GetStaticKinematicState.Transform.GetTranslation oTranslation
       logmessage "The StaticKinematicState property position is (as X, Y, Z): " & _
              oTranslation.X & ", " & oTranslation.Y & ", " & oTranslation.Z
   else
       logmessage "There's no StaticKinematicState property on this object."
   end if
end function


'=======================================================================================
' Output of above script is:
'
'INFO : "There's no StaticKinematicState property on this object."
'INFO : "The StaticKinematicState property position is (as X, Y, Z): 0, 0, 0"

See Also

Autodesk Softimage v7.5     <     >