1
2
3 """
4 The Blender.IpoCurve submodule
5
6 B{New}:
7 - IpoCurves supports the operator [], which accesses the value of
8 curves at a given time.
9
10 This module provides access to the IpoCurve data in Blender. An Ipo is
11 composed of several IpoCurves, and an IpoCurve are composed of several
12 BezTriples.
13
14 @warning: Ipo curves store euler rotations as degrees/10.0 so 180.0 would be 18.0
15
16 Example::
17 import Blender
18 ipo = Blender.Ipo.Get('ObIpo') # retrieves an Ipo object
19 ipo.name = 'ipo1' # change the Ipo's name
20 icu = ipo[Blender.Ipo.OB_LOCX] # request X Location Ipo curve object
21 if icu != None and len(icu.bezierPoints) > 0: # if curve exists and has BezTriple points
22 val = icu[2.5] # get the curve's value at time 2.5
23
24 @type ExtendTypes: readonly dictionary
25 @var ExtendTypes: The available IpoCurve extend types.
26 - CONST - curve is constant beyond first and last knots
27 - EXTRAP - curve maintains same slope beyond first and last knots
28 - CYCLIC - curve values repeat beyond first and last knots
29 - CYCLIC_EXTRAP - curve values repeat beyond first and last knots,
30 but while retaining continuity
31
32 @type InterpTypes: readonly dictionary
33 @var InterpTypes: The available IpoCurve interpolation types.
34 - CONST - curve remains constant from current BezTriple knot
35 - LINEAR - curve is linearly interpolated between adjacent knots
36 - BEZIER - curve is interpolated by a Bezier curve between adjacent knots
37 """
38
40 """
41 The IpoCurve object
42 ===================
43 This object gives access to generic data from all Ipo curves objects
44 in Blender.
45
46 Important Notes for Rotation Ipo Curves:\n
47 For the rotation Ipo curves, the y values for points are in units of 10
48 degrees. For example, 45.0 degrees is stored as 4.50 degrees. These are the
49 same numbers you see in the Transform Properties pop-up menu ( NKey ) in
50 the IPO Curve Editor window. Positive rotations are in a counter-clockwise
51 direction, following the standard convention.
52
53 @ivar driver: Status of the driver. 1= on, 0= object, 2= python expression.
54 @type driver: int
55 @ivar driverObject: Object used to drive the Ipo curve.
56 @type driverObject: Blender Object or None
57 @ivar driverExpression: Python expression used to drive the Ipo curve. [0 - 127 chars]
58 @type driverExpression: string
59 @ivar sel: The selection state of this curve.
60 @type sel: bool
61 @ivar driverChannel: Object channel used to drive the Ipo curve.
62 Use module constants: IpoCurve.LOC_X, IpoCurve.LOC_Y, IpoCurve.LOC_Z,
63 IpoCurve.ROT_X, IpoCurve.ROT_Y, IpoCurve.ROT_Z, IpoCurve.SIZE_X,
64 IpoCurve.SIZE_Y, IpoCurve.SIZE_Z
65 @type driverChannel: int
66 @ivar name: The IpoCurve data name.
67 @type name: string
68 @ivar bezierPoints: The list of the curve's bezier points.
69 @type bezierPoints: list of BezTriples.
70 @ivar interpolation: The curve's interpolation mode. See L{InterpTypes} for
71 values.
72 @type interpolation: int
73 @ivar extend: The curve's extend mode. See L{ExtendTypes} for values.
74
75 B{Note}: Cyclic Ipo curves never reach the end value. If the first and
76 last bezier points do not have the same y coordinate, the value of the
77 curve when it "cycles" is that of the first point. If a user wants to
78 get the value of the final curve point, read the final point from the
79 curve::
80
81 ipo = Blender.Object.Get('Cube').ipo
82 icu = ipo['LocX']
83 endtime,endvalue = icu.bezierPoints[-1].pt
84 @type extend: int
85 """
86
88 """
89 Returns the value of the curve at a particular time.
90 @type time: float
91 @param time: time (Vertex X) on the curve
92 @rtype: float
93 @return: value (Vertex Y) corresponding to the given time
94 """
95
97 """
98 Sets the value (Vertex Y) of the curve at a particular time.
99 @type time: float
100 @param time: time (Vertex X) on the curve
101 """
102
104 """
105 Sets the extend mode of the curve (B{deprecated}). B{Note}: new scripts
106 should use the L{extend} attribute instead.
107 @type extendmode: string
108 @param extendmode: the extend mode of the curve.
109 Can be Constant, Extrapolation, Cyclic or Cyclic_extrapolation.
110 @rtype: None
111 @return: None
112 """
113
115 """
116 Gets the extend mode of the curve (B{deprecated}). B{Note}: new scripts
117 should use the L{extend} attribute instead.
118 @rtype: string
119 @return: the extend mode of the curve. Can be Constant, Extrapolation, Cyclic or Cyclic_extrapolation.
120 """
121
123 """
124 Sets the interpolation type of the curve (B{deprecated}). B{Note}:
125 new scripts should use the L{interpolation} attribute instead.
126 @type interpolationtype: string
127 @param interpolationtype: the interpolation type of the curve. Can be Constant, Bezier, or Linear.
128 @rtype: None
129 @return: None
130 """
131
133 """
134 Gets the interpolation type of the curve (B{deprecated}). B{Note}:
135 new scripts should use the L{interpolation} attribute instead.
136 @rtype: string
137 @return: the interpolation type of the curve. Can be Constant, Bezier, or Linear.
138 """
139
141 """
142 Adds a Bezier point to a IpoCurve.
143 @type point: BezTriple or tuple of 2 floats
144 @param point: Can either be a BezTriple, or the x and y coordinates of
145 the Bezier knot point.
146 @rtype: None
147 @return: None
148 """
149
151 """
152 Adds a Bezier point to a curve B{deprecated}). B{Note}: new scripts
153 should use L{append} instead.
154 @type coordlist: tuple of (at least) 2 floats
155 @param coordlist: the x and y coordinates of the new Bezier point.
156 @rtype: None
157 @return: None
158 """
159
161 """
162 Deletes a Bezier point from a curve.
163 @type index: integer
164 @param index: the index of the Bezier point. Negative values index from the end of the list.
165 @rtype: None
166 @return: None
167 """
168
170 """
171 Recomputes the curve after changes to control points.
172 @rtype: None
173 @return: None
174 """
175
177 """
178 Returns the name of the Ipo curve (B{deprecated}). B{Note}:
179 new scripts should use the L{name} attribute instead.
180 The name can be:
181 1. Camera Ipo: Lens, ClSta, ClEnd, Apert, FDist.
182 2. Material Ipo: R, G, B, SpecR, SpecG, SpecB, MirR, MirG, MirB, Ref,
183 Alpha, Emit, Amb, Spec, Hard, SpTra, Ior, Mode, HaSize, Translu,
184 RayMir, FresMir, FresMirI, FresTra, FresTraI, TraGlow, OfsX, OfsY,
185 OfsZ, SizeX, SizeY, SizeZ, texR, texG, texB, DefVar, Col, Nor, Var,
186 Disp.
187 3. Object Ipo: LocX, LocY, LocZ, dLocX, dLocY, dLocZ, RotX, RotY, RotZ,
188 dRotX, dRotY, dRotZ, SizeX, SizeY, SizeZ, dSizeX, dSizeY, dSizeZ,
189 Layer, Time, ColR, ColG, ColB, ColA, FStreng, FFall, Damping,
190 RDamp, Perm.
191 4. Lamp Ipo: Energ, R, G, B, Dist, SpoSi, SpoBl, Quad1, Quad2, HaInt.
192 5. World Ipo: HorR, HorG, HorB, ZenR, ZenG, ZenB, Expos, Misi, MisDi,
193 MisSta, MisHi, StaR, StaG, StaB, StarDi, StarSi, OfsX, OfsY, OfsZ,
194 SizeX, SizeY, SizeZ, TexR, TexG, TexB, DefVar, Col, Nor, Var.
195 5. World Ipo: HorR, HorG, HorB, ZenR, ZenG, ZenB, Expos, Misi, MisDi,
196 MisSta, MisHi, StarR, StarB, StarG, StarDi, StarSi, OfsX, OfsY, OfsZ,i
197 SizeX, SizeY, SizeZ, texR, texG, texB, DefVar, Col, Nor, Var.
198 6. Texture Ipo: NSize, NDepth, NType, Turb, Vnw1, Vnw2, Vnw3, Vnw4,
199 MinkMExp, DistM, ColT, iScale, DistA, MgType, MgH, Lacu, Oct,
200 MgOff, MgGain, NBase1, NBase2.
201 7. Curve Ipo: Speed.
202 8. Action Ipo: LocX, LocY, LocZ, SizeX, SizeY, SizeZ, QuatX, QuatY,
203 QuatZ, QuatW.
204 9. Sequence Ipo: Fac.
205 10. Constraint Ipo: Inf.
206
207 @rtype: string
208 @return: the name of the Ipo curve.
209 """
210
212 """
213 Returns all the points of the IpoCurve (B{deprecated}).
214 B{Note}: new scripts should use the L{bezierPoints} attribute instead.
215 @rtype: list of BezTriples
216 @return: the points of the Ipo curve.
217 """
218
220 """
221 Compute the value of the Ipo curve at a particular time (B{deprecated}).
222 B{Note}: new scripts should use L{icu[time]<__getitem__>} instead.
223 @type time: float
224 @param time: value along the X axis
225 @rtype: float
226 @return: the Y value of the curve at the given time
227 """
228