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Object.py

# Blender.Object module and the Object PyType object

"""
The Blender.Object submodule

B{New}: 'old_worldspace' parameter in L{Object.Object.getMatrix}, which now
defaults to 'worldspace'. 

Object
======

This module provides access to the B{Objects} in Blender.

Example::

  import Blender
  scene = Blender.Scene.getCurrent ()   # get the current scene
  ob = Blender.Object.New ('Camera')    # make camera object
  cam = Blender.Camera.New ('ortho')    # make ortho camera data object
  ob.link (cam)                         # link camera data with the object
  scene.link (ob)                       # link the object into the scene
  ob.setLocation (0.0, -5.0, 1.0)       # position the object in the scene

  Blender.Redraw()                      # redraw the scene to show the updates.
"""

def New (type, name='type'):
  """
  Creates a new Object.
  @type type: string
  @param type: The Object type: 'Armature', 'Camera', 'Curve', 'Lamp', 'Mesh'
      or 'Empty'.
  @type name: string
  @param name: The name of the object. By default, the name will be the same
      as the object type.
  @return: The created Object.

  I{B{Example:}}

  The example below creates a new Lamp object and puts it at the default
  location (0, 0, 0) in the current scene::
    import Blender

    object = Blender.Object.New ('Lamp')
    lamp = Blender.Lamp.New ('Spot')
    object.link (lamp)
    scene = Blender.Scene.getCurrent ()
    scene.link (object)

    Blender.Redraw()
  """

def Get (name = None):
  """
  Get the Object from Blender.
  @type name: string
  @param name: The name of the requested Object.
  @return: It depends on the 'name' parameter:
      - (name): The Object with the given name;
      - ():     A list with all Objects in the current scene.

  I{B{Example 1:}}

  The example below works on the default scene. The script returns the plane
  object and prints the location of the plane::
    import Blender

    object = Blender.Object.Get ('plane')
    print object.getLocation()

  I{B{Example 2:}}

  The example below works on the default scene. The script returns all objects
  in the scene and prints the list of object names::
    import Blender

    objects = Blender.Object.Get ()
    print objects
  """

def GetSelected ():
  """
  Get the selected objects from Blender. If no objects are selected, an empty
  list will be returned.
  @return: A list of all selected Objects in the current scene.

  I{B{Example:}}

  The example below works on the default scene. Select one or more objects and
  the script will print the selected objects::
    import Blender

    objects = Blender.Object.GetSelected ()
    print objects
  """

00097 class Object:
  """
  The Object object
  =================
    This object gives access to generic data from all objects in Blender.
    @cvar LocX: The X location coordinate of the object.
    @cvar LocY: The Y location coordinate of the object.
    @cvar LocZ: The Z location coordinate of the object.
    @cvar loc: The (X,Y,Z) location coordinates of the object (vector).
    @cvar dLocX: The delta X location coordinate of the object.
        This variable applies to IPO Objects only.
    @cvar dLocY: The delta Y location coordinate of the object.
        This variable applies to IPO Objects only.
    @cvar dLocZ: The delta Z location coordinate of the object.
        This variable applies to IPO Objects only.
    @cvar dloc: The delta (X,Y,Z) location coordinates of the object (vector).
        This variable applies to IPO Objects only.
    @cvar RotX: The X rotation angle (in radians) of the object.
    @cvar RotY: The Y rotation angle (in radians) of the object.
    @cvar RotZ: The Z rotation angle (in radians) of the object.
    @cvar rot: The (X,Y,Z) rotation angles (in radians) of the object (vector).
    @cvar dRotX: The delta X rotation angle (in radians) of the object.
        This variable applies to IPO Objects only.
    @cvar dRotY: The delta Y rotation angle (in radians) of the object.
        This variable applies to IPO Objects only.
    @cvar dRotZ: The delta Z rotation angle (in radians) of the object.
        This variable applies to IPO Objects only.
    @cvar drot: The delta (X,Y,Z) rotation angles (in radians) of the object
        (vector).
        This variable applies to IPO Objects only.
    @cvar SizeX: The X size of the object.
    @cvar SizeY: The Y size of the object.
    @cvar SizeZ: The Z size of the object.
    @cvar size: The (X,Y,Z) size of the object (vector).
    @cvar dSizeX: The delta X size of the object.
    @cvar dSizeY: The delta Y size of the object.
    @cvar dSizeZ: The delta Z size of the object.
    @cvar dsize: The delta (X,Y,Z) size of the object.
    @cvar EffX: The X effector coordinate of the object. Only applies to IKA.
    @cvar EffY: The Y effector coordinate of the object. Only applies to IKA.
    @cvar EffZ: The Z effector coordinate of the object. Only applies to IKA.
    @cvar Layer: The object layer.  This value is a bitmask with one position
        set for each of the 20 possible layers starting from the low order bit.
        The easiest way to deal with these values in in hexadecimal notation.
        Example::
          ob.Layer = 0x04 # sets layer 3 ( bit pattern 0100 )
        After setting the Layer value, call Blender.Redraw( -1 ) to update
        the interface.
    @cvar parent: The parent object of the object. (Read-only)
    @cvar track: The object tracking this object. (Read-only)
    @cvar data: The data of the object. (Read-only)
    @cvar ipo: The ipo data associated with the object. (Read-only)
    @cvar mat: The matrix of the object relative to its parent. (Read-only)
    @cvar matrix: The matrix of the object in world space. (Read-only)
    @cvar matrixLocal: The matrix of the object relative to its parent. (Read-only)
    @cvar matrixWorld: The matrix of the object in world space. (Read-only)
    @cvar colbits: The Material usage mask. A set bit #n means: the Material
        #n in the Object's material list is used. Otherwise, the Material #n
        of the Objects Data material list is displayed.
    @cvar drawType: The object's drawing type used. 1 - Bounding box,
        2 - wire, 3 - Solid, 4- Shaded, 5 - Textured.
    @cvar drawMode: The object's drawing mode used. The value can be a sum
        of: 2 - axis, 4 - texspace, 8 - drawname, 16 - drawimage,
        32 - drawwire.
    @cvar name: The name of the object.
    @cvar sel: The selection state of the object, 1/0.  
  """

00165   def buildParts():
    """
    Recomputes the particle system. This method only applies to an Object of
    the type Effect.
    """

00171   def clearIpo():
    """
    Unlinks the ipo from this object.
    @return: True if there was an ipo linked or False otherwise.
    """

00177   def clrParent(mode = 0, fast = 0):
    """
    Clears parent object.
    @type mode: Integer
    @type fast: Integer
    @param mode: A mode flag. If mode flag is 2, then the object transform will
        be kept. Any other value, or no value at all will update the object
        transform.
    @param fast: If the value is 0, the scene hierarchy will not be updated. Any
        other value, or no value at all will update the scene hierarchy.
    """

00189   def getData():
    """
    Returns the Datablock object containing the object's data. For example the
    Mesh, Lamp or the Camera.
    @rtype: Object type specific
    @return: Depending on the type of the Object, it returns a specific object
    for the data requested.
    """

00198   def getDeltaLocation():
    """
    Returns the object's delta location in a list (x, y, z)
    @rtype: A vector triple
    @return: (x, y, z)
    """

00205   def getDrawMode():
    """
    Returns the object draw mode.
    @rtype: Integer
    @return: a sum of the following:
        - 2  - axis
        - 4  - texspace
        - 8  - drawname
        - 16 - drawimage
        - 32 - drawwire
    """

00217   def getDrawType():
    """
    Returns the object draw type
    @rtype: Integer
    @return: One of the following:
        - 1 - Bounding box
        - 2 - Wire
        - 3 - Solid
        - 4 - Shaded
        - 5 - Textured
    """

00229   def getEuler():
    """
    Returns the object's rotation as Euler rotation vector (rotX, rotY, rotZ).  Angles are in radians.
    @rtype: Py_Euler
    @return: A python euler 
    """

00236   def getInverseMatrix():
    """
    Returns the object's inverse matrix.
    @rtype: Py_Matrix
    @return: A python matrix 4x4
    """

00243   def getIpo():
    """
    Returns the Ipo associated to this object or None if there's no linked ipo.
    @rtype: Ipo
    @return: the wrapped ipo or None.
    """
00249   def isSelected():
    """
    Returns the objects selection state as a boolean value True or False.
    @rtype: Boolean
    @return: Selection state as True or False
    """
  
00256   def getLocation():
    """
    Returns the object's location (x, y, z).
    @return: (x, y, z)

    I{B{Example:}}

    The example below works on the default scene. It retrieves all objects in
    the scene and prints the name and location of each object::
      import Blender

      objects = Blender.Object.Get()

      for obj in objects:
          print obj.getName()
          print obj.getLocation()
    """

00274   def getAction():
    """
    Returns an action if one is associated with this object (only useful for armature types).
    @rtype: Py_Action
    @return: a python action.
    """

00281   def getMaterials(what = 0):
    """
    Returns a list of materials assigned to the object.
    @type what: int
    @param what: if nonzero, empty slots will be returned as None's instead
        of being ignored (default way). See L{NMesh.NMesh.getMaterials}.
    @rtype: list of Material Objects
    @return: list of Material Objects assigned to the object.
    """

00291   def getMatrix(space = 'worldspace'):
    """
    Returns the object matrix.
    @type space: string
    @param space: The desired matrix:
      - worldspace (default): absolute, taking vertex parents, tracking and
          ipo's into account;
      - localspace: relative to the object's parent;
      - old_worldspace: old behavior, prior to Blender 2.34, where eventual
          changes made by the script itself were not taken into account until
          a redraw happened, either called by the script or upon its exit.
    Returns the object matrix.
    @rtype: Py_Matrix
    @return: a python 4x4 matrix object
    """

00307   def getName():
    """
    Returns the name of the object
    @return: The name of the object

    I{B{Example:}}

    The example below works on the default scene. It retrieves all objects in
    the scene and prints the name of each object::
      import Blender

      objects = Blender.Object.Get()

      for obj in objects:
          print obj.getName()
    """

00324   def getParent():
    """
    Returns the object's parent object.
    @rtype: Object
    @return: The parent object of the object. If not available, None will be
    returned.
    """

00332   def getSize():
    """
    Returns the object's size.
    @return: (SizeX, SizeY, SizeZ)
    """

00338   def getTimeOffset():
    """
    Returns the time offset of the object's animation.
    @return: TimeOffset
    """

00344   def getTracked():
    """
    Returns the object's tracked object.
    @rtype: Object
    @return: The tracked object of the object. If not available, None will be
    returned.
    """

00352   def getType():
    """
    Returns the type of the object.
    @return: The type of object.

    I{B{Example:}}

    The example below works on the default scene. It retrieves all objects in
    the scene and updates the location and rotation of the camera. When run,
    the camera will rotate 180 degrees and moved to the oposite side of the X
    axis. Note that the number 'pi' in the example is an approximation of the
    true number 'pi'::
        import Blender

        objects = Blender.Object.Get()

        for obj in objects:
            if obj.getType() == 'Camera':
                obj.LocY = -obj.LocY
                obj.RotZ = 3.141592 - obj.RotZ

        Blender.Redraw()
    """

00376   def link(object):
    """
    Links Object with data provided in the argument. The data must match the
    Object's type, so you cannot link a Lamp to a Mesh type object.
    @type object: Blender Object
    @param object: A Blender Object.
    """

00384   def makeParent(objects, noninverse = 0, fast = 0):
    """
    Makes the object the parent of the objects provided in the argument which
    must be a list of valid Objects.
    @type objects: Blender Object
    @param objects: A Blender Object.
    @type noninverse: Integer
    @param noninverse:
        0 - make parent with inverse
        1 - make parent without inverse
    @type fast: Integer
    @param fast:
        0 - update scene hierarchy automatically
        1 - don't update scene hierarchy (faster). In this case, you must
        explicitely update the Scene hierarchy.
    """

00401   def setDeltaLocation(delta_location):
    """
    Sets the object's delta location which must be a vector triple.
    @type delta_location: A vector triple
    @param delta_location: A vector triple (x, y, z) specifying the new
    location.
    """

00409   def setDrawMode(drawmode):
    """
    Sets the object's drawing mode. The drawing mode can be a mix of modes. To
    enable these, add up the values.
    @type drawmode: Integer
    @param drawmode: A sum of the following:
        - 2  - axis
        - 4  - texspace
        - 8  - drawname
        - 16 - drawimage
        - 32 - drawwire
    """

00422   def setDrawType(drawtype):
    """
    Sets the object's drawing type.
    @type drawtype: Integer
    @param drawtype: One of the following:
        - 1 - Bounding box
        - 2 - Wire
        - 3 - Solid
        - 4 - Shaded
        - 5 - Textured
    """

00434   def setEuler(euler):
    """
    Sets the object's rotation according to the specified Euler angles.
    @type euler: Py_Euler or a list of floats
    @param euler: a python euler or x,y,z rotations as floats
    """

00441   def setIpo(ipo):
    """
    Links an ipo to this object.
    @type ipo: Blender Ipo
    @param ipo: an object type ipo.
    """

00448   def setLocation(x, y, z):
    """
    Sets the object's location.
    @type x: float
    @param x: The X coordinate of the new location.
    @type y: float
    @param y: The Y coordinate of the new location.
    @type z: float
    @param z: The Z coordinate of the new location.
    """

00459   def setMaterials(materials):
    """
    Sets the materials. The argument must be a list of valid material objects.
    @type materials: Materials list
    @param materials: A list of Blender material objects.
    """

00466   def setMatrix(matrix):
    """
    Sets the object's matrix and updates it's tranformation. 
    @type matrix: Py_Matrix 4x4
    @param matrix: a python matrix 4x4.
    """

00473   def setName(name):
    """
    Sets the name of the object.
    @type name: String
    @param name: The new name for the object.
    """

00480   def setSize(x, y, z):
    """
    Sets the object's size.
    @type x: float
    @param x: The X size multiplier.
    @type y: float
    @param y: The Y size multiplier.
    @type z: float
    @param z: The Z size multiplier.
    """

00491   def setTimeOffset(timeOffset):
    """
    Sets the time offset of the object's animation.
    @type timeOffset: float
    @param timeOffset: The new time offset for the object's animation.
    """
  
00498   def shareFrom(object):
    """
    Link data of object specified in the argument with self. This works only
    if self and the object specified are of the same type.
    @type object: Blender Object
    @param object: A Blender Object of the same type.
    """
  
00506   def select(boolean):
    """
    Sets the object's selection state.
    @type boolean: Integer
    @param boolean:
        - 0  - unselected
        - 1  - selected
    """
  
00515   def getBoundBox():
    """
    Returns the bounding box of this object.  This works for meshes (out of
    edit mode) and curves.
    @rtype: list of 8 (x,y,z) float coordinate vectors
    @return: The coordinates of the 8 corners of the bounding box.
    """

00523   def makeDisplayList():
    """
    Updates this object's display list.  Blender uses display lists to store
    already transformed data (like a mesh with its vertices already modified
    by coordinate transformations and armature deformation).  If the object
    isn't modified, there's no need to recalculate this data.  This method is
    here for the *few cases* where a script may need it, like when toggling
    the "SubSurf" mode for a mesh:

    Example::
     object = Blender.Object.Get("Sphere")
     nmesh = object.getData()
     nmesh.setMode("SubSurf")
     nmesh.update() # don't forget to update!
     object.makeDisplayList()
     Blender.Window.Redraw()

    If you try this example without the line to update the display list, the
    object will disappear from the screen until you press "SubSurf".
    @warn: If after running your script objects disappear from the screen or
       are not displayed correctly, try this method function.  But if the script
       works properly without it, there's no reason to use it.
    """

00547   def getScriptLinks (event):
    """
    Get a list with this Object's script links of type 'event'.
    @type event: string
    @param event: "FrameChanged" or "Redraw".
    @rtype: list
    @return: a list with Blender L{Text} names (the script links of the given
        'event' type) or None if there are no script links at all.
    """

00557   def clearScriptLinks ():
    """
    Delete all this Object's script links.
    @rtype: bool
    @return: 0 if some internal problem occurred or 1 if successful.
    """

00564   def addScriptLink (text, event):
    """
    Add a new script link to this Object.
    @type text: string
    @param text: the name of an existing Blender L{Text}.
    @type event: string
    @param event: "FrameChanged" or "Redraw".
    """

00573   def makeTrack (tracked, fast = 0):
    """
    Make this Object track another.
    @type tracked: Blender Object
    @param tracked: the object to be tracked.
    @type fast: int (bool)
    @param fast: if zero, the scene hierarchy is updated automatically.  If
        you set 'fast' to a nonzero value, don't forget to update the scene
        yourself (see L{Scene.Scene.update}).
    @note: you also need to clear the rotation (L{setEuler}) of this object
       if it was not (0,0,0) already.
    """

00586   def clearTrack (mode = 0, fast = 0):
    """
    Make this Object not track another anymore.
    @type mode: int (bool)
    @param mode: if nonzero the matrix transformation used for tracking is kept.
    @type fast: int (bool)
    @param fast: if zero, the scene hierarchy is updated automatically.  If
        you set 'fast' to a nonzero value, don't forget to update the scene
        yourself (see L{Scene.Scene.update}).
    """

00597   def getAllProperties ():
    """
    Return a list of properties from this object.
    @rtype: PyList
    @return: List of Property objects.
    """

00604   def getProperty (name):
    """
    Return a properties from this object based on name.
    @type name: string
    @param name: the name of the property to get.
    @rtype: Property object
    @return: The first property that matches name.
    """

00613   def addProperty (name, data, type):
    """
    Add a property to object.
    @type name: string
    @param name: the property name.
    @type data: string, int or float
    @param data: depends on what is passed in:
      - string:  string type property
      - int:  integer type property
      - float:  float type property
    @type type: string (optional)
    @param type: can be the following:
      - 'BOOL'
      - 'INT'
      - 'FLOAT'
      - 'TIME'
      - 'STRING'
    @warn: If a type is not declared string data will
    become string type, int data will become int type
    and float data will become float type. Override type
    to declare bool type, and time type.
    """

00636   def addProperty (property):
    """
    Add a property to object.
    @type property: Property object
    @param property: property object to add to object.
    @warn:  A property object can be added only once to an object'
    you must remove the property from an object to add it elsewhere.
    """

00645   def removeProperty (name):
    """
    Remove a property from an object by name.
    @type property: Property object
    @param property: property to remove by name.
    """

00652   def removeProperty (property):
    """
    Remove a property from an object.
    @type property: Property object
    @param property: property object to remove.
    """

00659   def removeAllProperties():
    """
    Removes all properties from an object. 
    """

00664   def copyAllPropertiesTo (object):
    """
    Copies all properties from one object to another.
    @type object: Object object
    @param object: Object that will recieve the properties.
    """

00671 class Property:
  """
  The Property object
  ===================
    This property gives access to object property data in Blender.
    @cvar name: The property name.
    @cvar data: Data for this property. Depends on property type.
    @cvar type: The property type.
    @warn:  Comparisons between properties will only be true when
    both the name and data pairs are the same.
  """

00683   def getName ():
    """
    Get the name of this property.
    @rtype: string
    @return: The property name.
    """

00690   def setName (name):
    """
    Set the name of this property.
    @type name: string
    @param name: The new name of the property
    """

00697   def getData ():
    """
    Get the data for this property.
    @rtype: string, int, or float
    """

00703   def setData (data):
    """
    Set the data for this property.
    @type data: string, int, or float
    @param data: The data to set for this property.
    @warn:  See object.setProperty().  Changing data
    which is of a different type then the property is 
    set to (i.e. setting an int value to a float type'
    property) will change the type of the property 
    automatically.
    """

00715   def getType ():
    """
    Get the type for this property.
    @rtype: string
    """

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