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NAME

       SoAntiSquish -

       The SoAntiSquish class is used to reset to uniform scaling.

       When traversed, this node replaces the scale vector of the matrix with
       uniform values, based on one of the SoAntiSquish::Sizing strategies.

SYNOPSIS

       #include <Inventor/nodes/SoAntiSquish.h>

       Inherits SoTransformation.

   Public Types
       enum Sizing { X, Y, Z, AVERAGE_DIMENSION, BIGGEST_DIMENSION,
           SMALLEST_DIMENSION, LONGEST_DIAGONAL }

   Public Member Functions
       SoAntiSquish (void)
       void recalc (void)
       virtual void doAction (SoAction *action)

   Static Public Member Functions
       static void initClass (void)

   Public Attributes
       SoSFEnum sizing
       SoSFBool recalcAlways

   Protected Member Functions
       virtual ~SoAntiSquish ()
       virtual void callback (SoCallbackAction *action)
       virtual void GLRender (SoGLRenderAction *action)
       virtual void getBoundingBox (SoGetBoundingBoxAction *action)
       virtual void getMatrix (SoGetMatrixAction *action)
       virtual void pick (SoPickAction *action)
       SbMatrix getUnsquishingMatrix (const SbMatrix &squishedmatrix, const
           SbBool calcinverse, SbMatrix &getinverse)

Detailed Description

       The SoAntiSquish class is used to reset to uniform scaling.

       When traversed, this node replaces the scale vector of the matrix with
       uniform values, based on one of the SoAntiSquish::Sizing strategies.

       This node is for instance used by manipulators to retain the shape of
       their dragger geometries when set up within the influence of an
       SoSurroundScale node (which can yield nonuniform scale-vectors in the
       current state transformation matrix).

       FILE FORMAT/DEFAULTS:

           AntiSquish {
               recalcAlways TRUE
               sizing AVERAGE_DIMENSION
           }

       See also:
           SoSurroundScale for a usage example.

Member Enumeration Documentation

   enum SoAntiSquish::Sizing Different strategies for ’unsquishing’ a scale.
       Values are used by the SoAntiSquish::sizing field.

Constructor & Destructor Documentation

   SoAntiSquish::SoAntiSquish (void) Constructor.
   SoAntiSquish::~SoAntiSquish () [protected, virtual] Destructor.

Member Function Documentation

   void SoAntiSquish::initClass (void) [static] Sets up initialization for
       data common to all instances of this class, like submitting necessary
       information to the Coin type system.
       Reimplemented from SoTransformation.

   void SoAntiSquish::recalc (void) If SoAntiSquish::recalcAlways has been set
       to FALSE, you must call this method whenever the transformations before
       this node in the graph has changed.
       See also:
           SoAntiSquish::recalcAlways

   void SoAntiSquish::doAction (SoAction * action) [virtual] Accumulates an
       ’unsquishing’ matrix on top of the current model matrix.
       Reimplemented from SoNode.

   void SoAntiSquish::callback (SoCallbackAction * action) [protected,
       virtual] Action method for SoCallbackAction.
       Simply updates the state according to how the node behaves for the
       render action, so the application programmer can use the
       SoCallbackAction for extracting information about the scene graph.

       Reimplemented from SoNode.

   void SoAntiSquish::GLRender (SoGLRenderAction * action) [protected,
       virtual] Action method for the SoGLRenderAction.
       This is called during rendering traversals. Nodes influencing the
       rendering state in any way or who wants to throw geometry primitives at
       OpenGL overrides this method.

       Reimplemented from SoNode.

   void SoAntiSquish::getBoundingBox (SoGetBoundingBoxAction * action)
       [protected, virtual] Action method for the SoGetBoundingBoxAction.
       Calculates bounding box and center coordinates for node and modifies
       the values of the action to encompass the bounding box for this node
       and to shift the center point for the scene more towards the one for
       this node.

       Nodes influencing how geometry nodes calculates their bounding box also
       overrides this method to change the relevant state variables.

       Reimplemented from SoNode.

   void SoAntiSquish::getMatrix (SoGetMatrixAction * action) [protected,
       virtual] Action method for SoGetMatrixAction.
       Updates action by accumulating with the transformation matrix of this
       node (if any).

       Reimplemented from SoNode.

   void SoAntiSquish::pick (SoPickAction * action) [protected, virtual] Action
       method for SoPickAction.
       Does common processing for SoPickAction action instances.

       Reimplemented from SoNode.

   SbMatrix SoAntiSquish::getUnsquishingMatrix (const SbMatrix &
       squishedmatrix, const SbBool calcinverse, SbMatrix & getinverse)
       [protected] Calculate and return the matrix needed to ’unsquish’ the
       squishedmatrix.
       If calcinverse is TRUE, store the inverse of the unsquishmatrix in
       getinverse.

Member Data Documentation

   SoSFEnum SoAntiSquish::sizing The current ’unsquish’ strategy. Default
       value is SoAntiSquish::AVERAGE_DIMENSION.
   SoSFBool SoAntiSquish::recalcAlways Whether to automatically have the
       unsquishing parameters recalculated for every traversal. Default value
       is TRUE.
       You can set this to FALSE and manually invoke SoAntiSquish::recalc() if
       you need closer control of the geometry influenced by this node.

Author

       Generated automatically by Doxygen for Coin from the source code.