com.jme3.scene.plugins.blender.constraints

Class ConstraintHelper

java.lang.Object

com.jme3.scene.plugins.blender.AbstractBlenderHelper

com.jme3.scene.plugins.blender.constraints.ConstraintHelper

public class ConstraintHelper
extends AbstractBlenderHelper

This class should be used for constraint calculations.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ConstraintHelper.Space The space of target or owner transformation.

Field Summary

Fields inherited from class com.jme3.scene.plugins.blender.AbstractBlenderHelper

blenderContext, blenderVersion, fixUpAxis, upAxisRotationQuaternion

Constructor Summary

Constructors

Constructor and Description
ConstraintHelper(java.lang.String blenderVersion, BlenderContext blenderContext) Helper constructor.

Method Summary

Modifier and Type	Method and Description
void	applyTransform(java.lang.Long oma, java.lang.String subtargetName, ConstraintHelper.Space space, Transform transform) Applies transform to a feature (bone or spatial).
void	bakeConstraints(BlenderContext blenderContext) The method bakes all available and valid constraints.
Transform	getTransform(java.lang.Long oma, java.lang.String subtargetName, ConstraintHelper.Space space) The method retrieves the transform from a feature in a given space.
void	loadConstraints(Structure objectStructure, BlenderContext blenderContext) This method reads constraints for for the given structure.
Matrix4f	toMatrix(Transform transform, Matrix4f store) Converts given transform to the matrix.

Methods inherited from class com.jme3.scene.plugins.blender.AbstractBlenderHelper

applyProperties, loadLibrary, loadProperties

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ConstraintHelper

public ConstraintHelper(java.lang.String blenderVersion,
                        BlenderContext blenderContext)

Helper constructor.

Parameters:

blenderVersion - the version read from the blend file

blenderContext - the blender context

Method Detail

loadConstraints

public void loadConstraints(Structure objectStructure,
                            BlenderContext blenderContext)
                     throws BlenderFileException

This method reads constraints for for the given structure. The constraints are loaded only once for object/bone.

Parameters:

objectStructure - the structure we read constraint's for

blenderContext - the blender context

Throws:

BlenderFileException

bakeConstraints

public void bakeConstraints(BlenderContext blenderContext)

The method bakes all available and valid constraints.

Parameters:

blenderContext - the blender context

getTransform

public Transform getTransform(java.lang.Long oma,
                              java.lang.String subtargetName,
                              ConstraintHelper.Space space)

The method retrieves the transform from a feature in a given space.

Parameters:

oma - the OMA of the feature (spatial or armature node)

subtargetName - the feature's subtarget (bone in a case of armature's node)

space - the space the transform is evaluated to

Returns:

the transform of a feature in a given space

applyTransform

public void applyTransform(java.lang.Long oma,
                           java.lang.String subtargetName,
                           ConstraintHelper.Space space,
                           Transform transform)

Applies transform to a feature (bone or spatial). Computations transform the given transformation from the given space to the feature's local space.

Parameters:

oma - the OMA of the feature we apply transformation to

subtargetName - the name of the feature's subtarget (bone in case of armature)

space - the space in which the given transform is to be applied

transform - the transform we apply

toMatrix

public Matrix4f toMatrix(Transform transform,
                         Matrix4f store)

Converts given transform to the matrix.

Parameters:

transform - the transform to be converted

store - the matrix where the result will be stored

Returns:

the store matrix