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blender-archive/source/blender/python/api2_2x/doc/Ipo.py
Ken Hughes 5029a4444a Bug fix #3671: Blender.Beztriple.New() did not accept sequences as parameters,
even though its error messages suggested it did.  Thanks to Yann for the
patch (I also added the ability to accept parameters without requiring
them to be in a tuple).  Also documented the New() function.
2006-01-01 15:50:53 +00:00

458 lines
15 KiB
Python

# Blender.Ipo module and the Ipo PyType object
"""
The Blender.Ipo submodule
B{New}:
- Ipo updates to both the program and Bpython access.
- access to Blender's new Ipo driver capabilities .
This module provides access to the Ipo Data in Blender. An Ipo is composed of
several IpoCurves.
A datatype is defined : IpoCurve type. The member functions of this data type
are given below.
Example::
import Blender
ob = Blender.Ipo.Get('ipo') # retrieves an Ipo object
ob.setName('ipo1')
print ob.name
print ipo.getRctf()
ipo.setRctf(1,2,3,4)
"""
def New (type, name):
"""
Creates a new Ipo.
@type type: string
@type name: string
@param type: The Ipo's blocktype. Depends on the object the Ipo will be
linked to. Currently supported types are Object, Camera, World,
Material, Texture, Lamp, Action, Constraint, Sequence, Curve, Key.
@param name: The name for this Ipo.
@rtype: Blender Ipo
@return: The created Ipo.
"""
def Get (name = None):
"""
Get the Ipo from Blender.
@type name: string
@param name: The name of the requested Ipo, or nothing.
@rtype: Blender Ipo or a list of Blender Ipos
@return: It depends on the 'name' parameter:
- (name): The Ipo with the given name;
- (): A list with all Ipos in the current scene.
"""
class Ipo:
"""
The Ipo object
==============
This object gives access to generic data from all objects in Blender.
It has no attributes.
"""
def getName():
"""
Gets the name of the Ipo.
@rtype: string
@return: the name of the Ipo.
"""
def getCurves():
"""
Gets all the IpoCurves of the Ipo.
@rtype: list of IpoCurves
@return: A list (possibly void) containing all the IpoCurves associated to the Ipo object.
"""
def getCurve(curve):
"""
Return the specified IpoCurve. If the curve does not exist in the Ipo,
None is returned. I{curve} can be either a string or an integer,
denoting either the name of the Ipo curve or its internal adrcode.
The possible Ipo curve names are:
1. Camera Ipo: Lens, ClSta, ClEnd, Apert, FDist.
2. Material Ipo: R, G, B, SpecR, SpecG, SpecB, MirR, MirG, MirB, Ref,
Alpha, Emit, Amb, Spec, Hard, SpTra, Ior, Mode, HaSize, Translu,
RayMir, FresMir, FresMirI, FresTra, FresTraI, TraGlow, OfsX, OfsY,
OfsZ, SizeX, SizeY, SizeZ, texR, texG, texB, DefVar, Col, Nor, Var,
Disp.
3. Object Ipo: LocX, LocY, LocZ, dLocX, dLocY, dLocZ, RotX, RotY, RotZ,
dRotX, dRotY, dRotZ, SizeX, SizeY, SizeZ, dSizeX, dSizeY, dSizeZ,
Layer, Time, ColR, ColG, ColB, ColA, FStreng, FFall, Damping,
RDamp, Perm.
4. Lamp Ipo: Energ, R, G, B, Dist, SpoSi, SpoBl, Quad1, Quad2, HaInt.
5. World Ipo: HorR, HorG, HorB, ZenR, ZenG, ZenB, Expos, Misi, MisDi,
MisSta, MisHi, StaR, StaG, StaB, StarDi, StarSi, OfsX, OfsY, OfsZ,
SizeX, SizeY, SizeZ, TexR, TexG, TexB, DefVar, Col, Nor, Var.
5. World Ipo: HorR, HorG, HorB, ZenR, ZenG, ZenB, Expos, Misi, MisDi,
MisSta, MisHi, StarR, StarB, StarG, StarDi, StarSi, OfsX, OfsY, OfsZ,i
SizeX, SizeY, SizeZ, texR, texG, texB, DefVar, Col, Nor, Var.
6. Texture Ipo: NSize, NDepth, NType, Turb, Vnw1, Vnw2, Vnw3, Vnw4,
MinkMExp, DistM, ColT, iScale, DistA, MgType, MgH, Lacu, Oct,
MgOff, MgGain, NBase1, NBase2.
7. Curve Ipo: Speed.
8. Action Ipo: LocX, LocY, LocZ, SizeX, SizeY, SizeZ, QuatX, QuatY,
QuatZ, QuatW.
9. Sequence Ipo: Fac.
10. Constraint Ipo: Inf.
The adrcode for the Ipo curve can also be given; currently this is the
only way to access curves for Key Ipos. The adrcodes for Key Ipo are
numbered consecutively starting at 0.
@type curve : string or int
@rtype: IpoCurve object
@return: the corresponding IpoCurve, or None.
@raise ValueError: I{curve} is not a valid name or adrcode for this Ipo
type.
"""
def addCurve(curvename):
"""
Add a new curve to the Ipo object. The possible values for I{curvename} are:
1. Camera Ipo: Lens, ClSta, ClEnd, Apert, FDist.
2. Material Ipo: R, G, B, SpecR, SpecG, SpecB, MirR, MirG, MirB, Ref,
Alpha, Emit, Amb, Spec, Hard, SpTra, Ior, Mode, HaSize, Translu,
RayMir, FresMir, FresMirI, FresTra, FresTraI, TraGlow, OfsX, OfsY,
OfsZ, SizeX, SizeY, SizeZ, texR, texG, texB, DefVar, Col, Nor, Var,
Disp.
3. Object Ipo: LocX, LocY, LocZ, dLocX, dLocY, dLocZ, RotX, RotY, RotZ,
dRotX, dRotY, dRotZ, SizeX, SizeY, SizeZ, dSizeX, dSizeY, dSizeZ,
Layer, Time, ColR, ColG, ColB, ColA, FStreng, FFall, Damping,
RDamp, Perm.
4. Lamp Ipo: Energ, R, G, B, Dist, SpoSi, SpoBl, Quad1, Quad2, HaInt.
5. World Ipo: HorR, HorG, HorB, ZenR, ZenG, ZenB, Expos, Misi, MisDi,
MisSta, MisHi, StaR, StaG, StaB, StarDi, StarSi, OfsX, OfsY, OfsZ,
SizeX, SizeY, SizeZ, TexR, TexG, TexB, DefVar, Col, Nor, Var.
5. World Ipo: HorR, HorG, HorB, ZenR, ZenG, ZenB, Expos, Misi, MisDi,
MisSta, MisHi, StarR, StarB, StarG, StarDi, StarSi, OfsX, OfsY, OfsZ,i
SizeX, SizeY, SizeZ, texR, texG, texB, DefVar, Col, Nor, Var.
6. Texture Ipo: NSize, NDepth, NType, Turb, Vnw1, Vnw2, Vnw3, Vnw4,
MinkMExp, DistM, ColT, iScale, DistA, MgType, MgH, Lacu, Oct,
MgOff, MgGain, NBase1, NBase2.
7. Curve Ipo: Speed.
8. Action Ipo: LocX, LocY, LocZ, SizeX, SizeY, SizeZ, QuatX, QuatY,
QuatZ, QuatW.
9. Sequence Ipo: Fac.
10. Constraint Ipo: Inf.
@type curvename : string
@rtype: IpoCurve object
@return: the corresponding IpoCurve, or None.
@raise ValueError: I{curvename} is not valid or already exists
"""
def delCurve(curvename):
"""
Delete an existing curve from the Ipo object. See addCurve() for possible values for curvename.
@type curvename : string
@rtype: None
@return: None.
"""
def setName(newname):
"""
Sets the name of the Ipo.
@type newname: string
@rtype: None
@return: None
"""
def getBlocktype():
"""
Gets the blocktype of the Ipo.
@rtype: int
@return: the blocktype of the Ipo.
"""
def setBlocktype(newblocktype):
"""
Sets the blocktype of the Ipo.
@type newblocktype: int
@rtype: None
@return: None
@warn: 'newblocktype' should not be changed unless you really know what
you are doing ...
"""
def getRctf():
"""
Gets the rctf of the Ipo.
Kind of bounding box...
@rtype: list of floats
@return: the rctf of the Ipo.
"""
def setRctf(newrctf):
"""
Sets the rctf of the Ipo.
@type newrctf: four floats.
@rtype: None
@return: None
@warn: rctf should not be changed unless you really know what you are
doing ...
"""
def getNcurves():
"""
Gets the number of curves of the Ipo.
@rtype: int
@return: the number of curve of the Ipo.
"""
def getCurveBP(curvepos):
"""
This method is unsupported. BPoint Ipo curves are not implemented.
Calling this method throws a NotImplementedError exception.
@raise NotImplementedError: this method B{always} raises an exception
"""
def getBeztriple(curvepos,pointpos):
"""
Gets a beztriple of the Ipo.
@type curvepos: int
@param curvepos: the position of the curve in the Ipo.
@type pointpos: int
@param pointpos: the position of the point in the curve.
@rtype: list of 9 floats
@return: the beztriple of the Ipo, or an error is raised.
"""
def setBeztriple(curvepos,pointpos,newbeztriple):
"""
Sets the beztriple of the Ipo.
@type curvepos: int
@param curvepos: the position of the curve in the Ipo.
@type pointpos: int
@param pointpos: the position of the point in the curve.
@type newbeztriple: list of 9 floats
@param newbeztriple: the new value for the point
@rtype: None
@return: None
"""
def getCurveCurval(curvepos):
"""
Gets the current value of a curve of the Ipo (B{deprecated}). B{Note}:
new scripts should use L{IpoCurve.evaluate()}.
@type curvepos: int or string
@param curvepos: the position of the curve in the Ipo or the name of the
curve
@rtype: float
@return: the current value of the selected curve of the Ipo.
"""
def EvaluateCurveOn(curvepos,time):
"""
Gets the value at a specific time of a curve of the Ipo (B{deprecated}).
B{Note}: new scripts should use L{IpoCurve.evaluate()}.
@type curvepos: int
@param curvepos: the position of the curve in the Ipo.
@type time: float
@param time: the desired time.
@rtype: float
@return: the current value of the selected curve of the Ipo at the given
time.
"""
class IpoCurve:
"""
The IpoCurve object
===================
This object gives access to generic data from all Ipo curves objects in Blender.
Important Notes for Rotation Ipo Curves:\n
For the rotation Ipo curves, the y values for points are in units of 10
degrees. For example, 45.0 degrees is stored as 4.50 degrees. These are the
same numbers you see in the Transform Properties pop-up menu ( NKey ) in
the IPO Curve Editor window. Positive rotations are in a counter-clockwise
direction, following the standard convention.
@ivar driver: Status of the driver. 1= on, 0= off.
@type driver: int
@ivar driverObject: Object used to drive the Ipo curve.
@type driverObject: Blender Object or None
@ivar driverChannel: Object channel used to drive the Ipo curve.
Use module constants: IpoCurve.LOC_X, IpoCurve.LOC_Y, IpoCurve.LOC_Z,
IpoCurve.ROT_X, IpoCurve.ROT_Y, IpoCurve.ROT_Z, IpoCurve.SIZE_X,
IpoCurve.SIZE_Y, IpoCurve.SIZE_Z
@type driverChannel: int
@ivar name: The IpoCurve data name.
@type name: string
@ivar bezierPoints : The list of the curve's bezier points.
@type bezierPoints : list
"""
def setExtrapolation(extendmode):
"""
Sets the extend mode of the curve.
@type extendmode: string
@param extendmode: the extend mode of the curve.
Can be Constant, Extrapolation, Cyclic or Cyclic_extrapolation.
@rtype: None
@return: None
"""
def getExtrapolation():
"""
Gets the extend mode of the curve.
@rtype: string
@return: the extend mode of the curve. Can be Constant, Extrapolation, Cyclic or Cyclic_extrapolation.
"""
def setInterpolation(interpolationtype):
"""
Sets the interpolation type of the curve.
@type interpolationtype: string
@param interpolationtype: the interpolation type of the curve. Can be Constant, Bezier, or Linear.
@rtype: None
@return: None
"""
def getInterpolation():
"""
Gets the interpolation type of the curve.
@rtype: string
@return: the interpolation type of the curve. Can be Constant, Bezier, or Linear.
"""
def addBezier(coordlist):
"""
Adds a Bezier point to a curve.
@type coordlist: tuple of (at least) 2 floats
@param coordlist: the x and y coordinates of the new Bezier point.
@rtype: None
@return: None
"""
def delBezier(index):
"""
Deletes a Bezier point from a curve.
@type index: integer
@param index: the index of the Bezier point. Negative values index from the end of the list.
@rtype: None
@return: None
"""
def recalc():
"""
Recomputes the curve after changes to control points.
@rtype: None
@return: None
"""
def getName():
"""
Returns the name of the Ipo curve. This name can be:
1. Camera Ipo: Lens, ClSta, ClEnd, Apert, FDist.
2. Material Ipo: R, G, B, SpecR, SpecG, SpecB, MirR, MirG, MirB, Ref,
Alpha, Emit, Amb, Spec, Hard, SpTra, Ior, Mode, HaSize, Translu,
RayMir, FresMir, FresMirI, FresTra, FresTraI, TraGlow, OfsX, OfsY,
OfsZ, SizeX, SizeY, SizeZ, texR, texG, texB, DefVar, Col, Nor, Var,
Disp.
3. Object Ipo: LocX, LocY, LocZ, dLocX, dLocY, dLocZ, RotX, RotY, RotZ,
dRotX, dRotY, dRotZ, SizeX, SizeY, SizeZ, dSizeX, dSizeY, dSizeZ,
Layer, Time, ColR, ColG, ColB, ColA, FStreng, FFall, Damping,
RDamp, Perm.
4. Lamp Ipo: Energ, R, G, B, Dist, SpoSi, SpoBl, Quad1, Quad2, HaInt.
5. World Ipo: HorR, HorG, HorB, ZenR, ZenG, ZenB, Expos, Misi, MisDi,
MisSta, MisHi, StaR, StaG, StaB, StarDi, StarSi, OfsX, OfsY, OfsZ,
SizeX, SizeY, SizeZ, TexR, TexG, TexB, DefVar, Col, Nor, Var.
5. World Ipo: HorR, HorG, HorB, ZenR, ZenG, ZenB, Expos, Misi, MisDi,
MisSta, MisHi, StarR, StarB, StarG, StarDi, StarSi, OfsX, OfsY, OfsZ,i
SizeX, SizeY, SizeZ, texR, texG, texB, DefVar, Col, Nor, Var.
6. Texture Ipo: NSize, NDepth, NType, Turb, Vnw1, Vnw2, Vnw3, Vnw4,
MinkMExp, DistM, ColT, iScale, DistA, MgType, MgH, Lacu, Oct,
MgOff, MgGain, NBase1, NBase2.
7. Curve Ipo: Speed.
8. Action Ipo: LocX, LocY, LocZ, SizeX, SizeY, SizeZ, QuatX, QuatY,
QuatZ, QuatW.
9. Sequence Ipo: Fac.
10. Constraint Ipo: Inf.
@rtype: string
@return: the name of the Ipo curve.
"""
def getPoints():
"""
Returns all the points of the Ipo curve.
@rtype: list of BezTriples
@return: the points of the Ipo curve.
"""
def evaluate( time ):
"""
Compute the value of the Ipo curve at a particular time.
@type time: float
@param time: value along the X axis
@rtype: float
@return: the Y value of the curve at the given time
"""
class BezTriple:
"""
The BezTriple object
====================
This object gives access to generic data from all beztriple objects in Blender. If an attribute is listed as being 'read-only' that means you cannot write to it. Use the set*() methods instead.
@ivar pt : the [x,y] coordinates for knot point of this BezTriple. Read-only.
@type pt: list of floats
@ivar vec : a list of the 3 points [ handle, knot, handle ] that comprise a BezTriple. See the getTriple() method for an example of the format. Read-only.
@type vec: list of points
@ivar hide: the visibility status of the control point.
@type hide: int
"""
def __init__(coords):
"""
Create a new BezTriple object.
@type coords: sequence of three or nine floats
@param coords: the coordinate values for the new control point. If three
floats are given, then the handle values are automatically generated.
@rtype: BezTriple
@return: a new BezTriple object
"""
def getPoints():
"""
Returns the xy coordinates of the Bezier knot point.
@rtype: list of floats
@return: list of the x and y coordinates of the Bezier point.
"""
def setPoints(newval):
"""
Sets the point xy coordinates of the Bezier knot point. After changing
coordinates, it is advisable to call L{IpoCurve.recalc()} to update the
Ipo curves.
@type newval: tuple of 2 floats
@param newval: the x and y coordinates of the new Bezier point.
@rtype: None
@return: None
"""
def getTriple():
"""
Returns the x,y,z coordinates for each of the three points that make up
a BezierTriple.
The return list looks like this [ [H1x, H1y, H1z], [Px, Py, Pz],
[H2x, H2y, H2z] ] .
Example::
# where bt is of type BezierTriple
# and h1, p, and h2 are lists of 3 floats
h1, p, h2 = bt.getTriple()
@rtype: list consisting of 3 lists of 3 floats
@return: handle1, knot, handle2
"""