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9fa628f35be31a18edfdb1e1fca8a6bd3b6b453c
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228 Commits

Author SHA1 Message Date
Sybren A. Stüvel
9fa628f35b mathutils: added exponential map to Quaternion 
Added conversion to and from exponential map representation. This
representation is useful for interpolation of > 2 quaternions, or in
PD controllers.

Implementation in C functions quat_to_expmap,
quat_normalized_to_expmap, and expmap_to_quat with Python API, unit
tests and documentation.

Added Quaternion.to_exponential_map() and Quaternion(3-vector) to
Python API.

Reviewers: campbellbarton

Projects: #bf_blender

Differential Revision: https://developer.blender.org/D1049
 2015-02-01 13:06:00 +01:00
Sybren A. Stüvel
8c7e1b648b Fix: correctly describing Quaternion.normalize() 
The original comment seems to suggest that only the rotation vector
is normalized, leaving the rotation angle alone. This is not what happens,
though. The new comment matches the actual implementation, and the
implementation matches what is commonly understood as quaternion
normalization.
 2015-02-01 10:34:49 +01:00
Bastien Montagne
12a38abac6 Fix T43473: mathtutils.geometry.interpolate_bezier returns only 2d coordinates 
Fixed/enhanced a few usages of `mathutils_array_parse()` in this file actually...
 2015-01-29 18:11:13 +01:00
Campbell Barton
79ba5e52dd Revert "mathutils: let Vector.normalize() return the original length." 
Please discuss changes to core mathutils functions first.

Changes like this should be considered and applied to all areas of the API (or not at all).
Missed quaternion, matrix normalize for eg.
 2015-01-30 02:12:07 +11:00
Sybren A. Stüvel
6912fe132f mathutils: let Vector.normalize() return the original length. 
The length has to be calculated for normalization anyway, and it is already
returned by normalize_vn(vec, size).
 2015-01-29 15:29:01 +01:00
Lukas Tönne
1727a165dd Properly register the mathutils.interpolate submodule. 2015-01-20 09:30:09 +01:00
Lukas Tönne
658fc3ddbc New python submodule mathutils.interpolate for various mesh interpolation and weighting methods. 
This module will contain mirrored functions for calculating and applying
weights for points on a mesh. This includes barycentric and UV weighting
and possibly more advanced global weighting such as harmonic weights.

The naming should follow this scheme:
<type>_{2d,3d}_{calc,apply}

e.g.
poly_2d_calc
poly_2d_apply
uv_3d_calc
...

Reviewers: campbellbarton

Differential Revision: https://developer.blender.org/D939
 2015-01-20 09:30:09 +01:00
Bastien Montagne
90b5697459 Fix mathutils.barycentric_transform() 
Dummy typo, we need a 3D vector here...
 2015-01-18 18:41:47 +01:00
Campbell Barton
1829c049be Correct args from recent mathutils refactor 2015-01-06 19:09:55 +11:00
Campbell Barton
bf0c8e116d PyAPI: add PyList_APPEND 
This appends while giving ownership to the list, avoiding temp assignment.
This matches PyList_SET_ITEM which bypasses refcount's

Note, this also reduce code-size, Py_DECREF is a rather heavy macro.
 2015-01-06 19:09:53 +11:00
Campbell Barton
9fd569a654 PyAPI: add utilities PyTuple_SET_ITEMS, Py_INCREF_RET 
Setting all values of a tuple is such a common operation that it deserves its own macro.
Also added Py_INCREF_RET to avoid confusing use of comma operator.
 2015-01-06 19:09:11 +11:00
Bastien Montagne
e0db0f84ac Fix T43119: mathutils.intersect_point_line always returns a 2D vector as first value. 
Trivial, safe for final 2.73.
 2015-01-04 10:11:21 +01:00
Campbell Barton
8106a6b75d mathutils: refactor instantiation 
remove 'type' argument, very few mathutils objects are wrapped,
add new function for creating wrapped objects.

also fixes unlikely memory leak if the data-array can't be allocated.
 2015-01-04 17:43:57 +11:00
Campbell Barton
4abe548527 cleanup: style 2015-01-02 19:29:00 +11:00
Campbell Barton
cefb764269 PyAPI: geometry.normal, support polygons 
Previously this only supported tri/quads,
now arbitrary size poly lines are supported.
 2014-12-30 22:49:52 +11:00
Campbell Barton
68600920ce PyAPI: allow non-vector args for geometry module 
Previously only vector args were accepted,
now allow generic sequence of numbers.

Was annoying to create vectors just to pass in args.
 2014-12-30 22:05:34 +11:00
Campbell Barton
e182d43d3e cleanup: avoid ref-counting None for a new matrix 2014-12-28 15:13:01 +11:00
Tamito Kajiyama
27b58f0eb2 Fix mathutils docstring typos. 2014-12-19 00:43:41 +09:00
Bastien Montagne
9c81833430 Fix T42885: We still had a few wrong doc in mathutils about methods returning 
instance of self while actually returning None...
 2014-12-13 14:07:46 +01:00
Campbell Barton
915235c87a Cleanup: unused headers 2014-11-28 22:16:14 +01:00
Campbell Barton
8b2fbd6bbf mathutils.kdtree: fix docstrings 2014-11-20 11:03:38 +01:00
Campbell Barton
a550d913bc Fix Python ray-cast failing to check hit direction 2014-10-08 09:47:41 +02:00
Campbell Barton
3a40aed3d5 Cleanup: use float versions of functions when in/output are floats 2014-09-24 14:55:02 +10:00
Campbell Barton
4e732b9860 Fix building as Python module (manpage-generation) 2014-09-08 11:22:40 +10:00
Bastien Montagne
e44c49d89d Py Mathutils: add invert_safe() and inverted_safe() to Matrix. 
Those two mimic our BLI invert_m4_m4_safe - they add a small offset to diagonal values,
in case org matrix is degenerated, and if still non-invertible, return identity matrix.

Org patch by me, final enhanced version by ideasman42, many thanks!
 2014-09-06 14:58:38 +02:00
Campbell Barton
671f75a12a Math Lib: Add copy_m2_m2, unit_m2, zero_m2 2014-09-06 11:29:27 +10:00
Campbell Barton
ff42afb6c5 Math Lib: rename barycentric_transform -> transform_point_by_tri_v3 
also add transform_point_by_seg_v3
 2014-08-13 14:55:45 +10:00
Campbell Barton
3529913629 Math Lib: name signed versions of dist_to_plane_v3 explicitly 
also add unsigned versions
 2014-08-13 14:34:58 +10:00
Campbell Barton
a108532eb9 Fix for mathutils.Euler on big endian systems 
D719 from jrestemeier with edits
 2014-08-08 02:11:54 +10:00
Tamito Kajiyama
8d3bfef538 Extended mathutils.Vector.orthogonal() to accept a 2D vector. 
Reviewer: Campbell Barton

Differential revision: https://developer.blender.org/D668
 2014-07-23 23:10:03 +09:00
Campbell Barton
a7d8f602a6 Py/API: Improve intersect_line_line with parallel lines 
Now comparing the distance between line-intersection points
to see how close lines are - doesn't fail in the parallel case.
 2014-07-21 23:22:10 +10:00
Campbell Barton
ce47231cdb Math Lib: Add isect_point_tri_v3 
Add to Python via mathutils.geometry
 2014-07-21 16:58:17 +10:00
Campbell Barton
00b29156e0 Defines: replace ELEM3-16 with ELEM(...), that can take varargs 2014-07-20 01:33:40 +10:00
Campbell Barton
9f05588b68 Python: remove redundant casts 2014-07-01 14:10:59 +10:00
Campbell Barton
92a380d0b2 Minor changes for standalone mathutils 2014-05-17 12:06:29 +10:00
Campbell Barton
4ca67869cc Code cleanup: remove unused includes 
Opted to keep includes if they are used indirectly (even if removing is possible).
 2014-05-01 04:47:51 +10:00
Campbell Barton
c034a252bb Code cleanup: quiet warnings 2014-04-29 22:37:44 +10:00
Campbell Barton
94bf67b78e Error in last commit 2014-04-29 20:41:28 +10:00
Campbell Barton
232f19f0c2 PyAPI: Matrix.invert(ed): accept an optional fallback argument 
This avoids try/except when its possible the matrix has no inverse.
 2014-04-29 20:12:07 +10:00
Campbell Barton
409fb4da0c Code cleanup: remove redundant matrix initialization 2014-04-29 18:13:20 +10:00
Campbell Barton
e73d0f57a3 Code cleanup: use 'const' for arrays (python) 2014-04-27 00:25:15 +10:00
Campbell Barton
dc847607b6 Change Vector.slerp to accept nonunit vectors 2014-04-18 20:49:39 +10:00
Campbell Barton
55f83e36cc Py API: Vector.slerp(). also added interp_v3_v3v3_slerp(_safe) functions 2014-03-31 13:28:37 +11:00
Campbell Barton
6aa75d3b2c Fix for error in normalize_vn_vn(), add len_squared_vn 2014-03-31 11:19:32 +11:00
Campbell Barton
7199e2288f Code cleanup: use sqrtf when input and output are float 2014-03-28 14:53:37 +11:00
Bastien Montagne
e9a64e2770 Fix T39392: Python bindings for geometry.box_pack_2d() return invalid total height 2014-03-24 17:39:54 +01:00
Campbell Barton
7da2175271 KDTree: deprecate 'normal' argument 
Normals for each kdtree node were allocated but never used,
and search args only use in particles/boids code.
 2014-03-18 09:14:47 +11:00
Campbell Barton
a47137a2db Python API: add Vector.orthogonal() method 2014-03-18 00:39:46 +11:00
Campbell Barton
06b6cd8345 PyAPI: mathutils.Vector.cross now works for 2d vectors (returns a float) 
also fixed crash when running on large vectors (raises exception now)
 2014-02-05 23:36:30 +11:00
Campbell Barton
ab6157a06a PyAPI: noise.seed_set(), note that zero is a special case. 2014-01-30 17:56:07 +11:00