Panda3D
animChannelMatrixXfmTable.cxx
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1 /**
2  * PANDA 3D SOFTWARE
3  * Copyright (c) Carnegie Mellon University. All rights reserved.
4  *
5  * All use of this software is subject to the terms of the revised BSD
6  * license. You should have received a copy of this license along
7  * with this source code in a file named "LICENSE."
8  *
9  * @file animChannelMatrixXfmTable.cxx
10  * @author drose
11  * @date 1999-02-20
12  */
13 
15 #include "animBundle.h"
16 #include "config_chan.h"
17 
18 #include "compose_matrix.h"
19 #include "indent.h"
20 #include "datagram.h"
21 #include "datagramIterator.h"
22 #include "bamReader.h"
23 #include "bamWriter.h"
24 #include "fftCompressor.h"
25 #include "config_linmath.h"
26 
27 TypeHandle AnimChannelMatrixXfmTable::_type_handle;
28 
29 /**
30  * Used only for bam loader.
31  */
32 AnimChannelMatrixXfmTable::
33 AnimChannelMatrixXfmTable() {
34  for (int i = 0; i < num_matrix_components; i++) {
35  _tables[i] = CPTA_stdfloat(get_class_type());
36  }
37 }
38 
39 /**
40  * Creates a new AnimChannelMatrixXfmTable, just like this one, without
41  * copying any children. The new copy is added to the indicated parent.
42  * Intended to be called by make_copy() only.
43  */
44 AnimChannelMatrixXfmTable::
45 AnimChannelMatrixXfmTable(AnimGroup *parent, const AnimChannelMatrixXfmTable &copy) :
46  AnimChannelMatrix(parent, copy)
47 {
48  for (int i = 0; i < num_matrix_components; i++) {
49  _tables[i] = copy._tables[i];
50  }
51 }
52 
53 /**
54  *
55  */
56 AnimChannelMatrixXfmTable::
57 AnimChannelMatrixXfmTable(AnimGroup *parent, const std::string &name)
58  : AnimChannelMatrix(parent, name)
59 {
60  for (int i = 0; i < num_matrix_components; i++) {
61  _tables[i] = CPTA_stdfloat(get_class_type());
62  }
63 }
64 
65 /**
66  *
67  */
68 AnimChannelMatrixXfmTable::
69 ~AnimChannelMatrixXfmTable() {
70 }
71 
72 
73 /**
74  * Returns true if the value has changed since the last call to has_changed().
75  * last_frame is the frame number of the last call; this_frame is the current
76  * frame number.
77  */
79 has_changed(int last_frame, double last_frac,
80  int this_frame, double this_frac) {
81  if (last_frame != this_frame) {
82  for (int i = 0; i < num_matrix_components; i++) {
83  if (_tables[i].size() > 1) {
84  if (_tables[i][last_frame % _tables[i].size()] !=
85  _tables[i][this_frame % _tables[i].size()]) {
86  return true;
87  }
88  }
89  }
90  }
91 
92  if (last_frac != this_frac) {
93  // If we have some fractional changes, also check the next subsequent
94  // frame (since we'll be blending with that).
95  for (int i = 0; i < num_matrix_components; i++) {
96  if (_tables[i].size() > 1) {
97  if (_tables[i][last_frame % _tables[i].size()] !=
98  _tables[i][(this_frame + 1) % _tables[i].size()]) {
99  return true;
100  }
101  }
102  }
103  }
104 
105  return false;
106 }
107 
108 /**
109  * Gets the value of the channel at the indicated frame.
110  */
112 get_value(int frame, LMatrix4 &mat) {
113  PN_stdfloat components[num_matrix_components];
114 
115  for (int i = 0; i < num_matrix_components; i++) {
116  if (_tables[i].empty()) {
117  components[i] = get_default_value(i);
118  } else {
119  components[i] = _tables[i][frame % _tables[i].size()];
120  }
121  }
122 
123  compose_matrix(mat, components);
124 }
125 
126 /**
127  * Gets the value of the channel at the indicated frame, without any scale or
128  * shear information.
129  */
131 get_value_no_scale_shear(int frame, LMatrix4 &mat) {
132  PN_stdfloat components[num_matrix_components];
133  components[0] = 1.0f;
134  components[1] = 1.0f;
135  components[2] = 1.0f;
136  components[3] = 0.0f;
137  components[4] = 0.0f;
138  components[5] = 0.0f;
139 
140  for (int i = 6; i < num_matrix_components; i++) {
141  if (_tables[i].empty()) {
142  components[i] = get_default_value(i);
143  } else {
144  components[i] = _tables[i][frame % _tables[i].size()];
145  }
146  }
147 
148  compose_matrix(mat, components);
149 }
150 
151 /**
152  * Gets the scale value at the indicated frame.
153  */
155 get_scale(int frame, LVecBase3 &scale) {
156  for (int i = 0; i < 3; i++) {
157  if (_tables[i].empty()) {
158  scale[i] = 1.0f;
159  } else {
160  scale[i] = _tables[i][frame % _tables[i].size()];
161  }
162  }
163 }
164 
165 /**
166  * Returns the h, p, and r components associated with the current frame. As
167  * above, this only makes sense for a matrix-type channel.
168  */
170 get_hpr(int frame, LVecBase3 &hpr) {
171  for (int i = 0; i < 3; i++) {
172  if (_tables[i + 6].empty()) {
173  hpr[i] = 0.0f;
174  } else {
175  hpr[i] = _tables[i + 6][frame % _tables[i + 6].size()];
176  }
177  }
178 }
179 
180 /**
181  * Returns the rotation component associated with the current frame, expressed
182  * as a quaternion. As above, this only makes sense for a matrix-type
183  * channel.
184  */
186 get_quat(int frame, LQuaternion &quat) {
187  LVecBase3 hpr;
188  for (int i = 0; i < 3; i++) {
189  if (_tables[i + 6].empty()) {
190  hpr[i] = 0.0f;
191  } else {
192  hpr[i] = _tables[i + 6][frame % _tables[i + 6].size()];
193  }
194  }
195 
196  quat.set_hpr(hpr);
197 }
198 
199 /**
200  * Returns the x, y, and z translation components associated with the current
201  * frame. As above, this only makes sense for a matrix-type channel.
202  */
204 get_pos(int frame, LVecBase3 &pos) {
205  for (int i = 0; i < 3; i++) {
206  if (_tables[i + 9].empty()) {
207  pos[i] = 0.0f;
208  } else {
209  pos[i] = _tables[i + 9][frame % _tables[i + 9].size()];
210  }
211  }
212 }
213 
214 /**
215  * Returns the a, b, and c shear components associated with the current frame.
216  * As above, this only makes sense for a matrix-type channel.
217  */
219 get_shear(int frame, LVecBase3 &shear) {
220  for (int i = 0; i < 3; i++) {
221  if (_tables[i + 3].empty()) {
222  shear[i] = 0.0f;
223  } else {
224  shear[i] = _tables[i + 3][frame % _tables[i + 3].size()];
225  }
226  }
227 }
228 
229 /**
230  * Assigns the indicated table. table_id is one of 'i', 'j', 'k', for scale,
231  * 'a', 'b', 'c' for shear, 'h', 'p', 'r', for rotation, and 'x', 'y', 'z',
232  * for translation. The new table must have either zero, one, or
233  * get_num_frames() frames.
234  */
236 set_table(char table_id, const CPTA_stdfloat &table) {
237  int num_frames = _root->get_num_frames();
238 
239  if (table.size() > 1 && (int)table.size() < num_frames) {
240  // The new table has an invalid number of frames--it doesn't match the
241  // bundle's requirement.
242  nassert_raise("mismatched number of frames");
243  return;
244  }
245 
246  int i = get_table_index(table_id);
247  if (i < 0) {
248  return;
249  }
250 
251  _tables[i] = table;
252 }
253 
254 
255 /**
256  * Removes all the tables from the channel, and resets it to its initial
257  * state.
258  */
261  for (int i = 0; i < num_matrix_components; i++) {
262  _tables[i] = CPTA_stdfloat(get_class_type());
263  }
264 }
265 
266 /**
267  * Writes a brief description of the table and all of its descendants.
268  */
270 write(std::ostream &out, int indent_level) const {
271  indent(out, indent_level)
272  << get_type() << " " << get_name() << " ";
273 
274  // Write a list of all the sub-tables that have data.
275  bool found_any = false;
276  for (int i = 0; i < num_matrix_components; i++) {
277  if (!_tables[i].empty()) {
278  out << get_table_id(i) << _tables[i].size();
279  found_any = true;
280  }
281  }
282 
283  if (!found_any) {
284  out << "(no data)";
285  }
286 
287  if (!_children.empty()) {
288  out << " {\n";
289  write_descendants(out, indent_level + 2);
290  indent(out, indent_level) << "}";
291  }
292 
293  out << "\n";
294 }
295 
296 /**
297  * Returns a copy of this object, and attaches it to the indicated parent
298  * (which may be NULL only if this is an AnimBundle). Intended to be called
299  * by copy_subtree() only.
300  */
301 AnimGroup *AnimChannelMatrixXfmTable::
302 make_copy(AnimGroup *parent) const {
303  return new AnimChannelMatrixXfmTable(parent, *this);
304 }
305 
306 /**
307  * Returns the table index number, a value between 0 and
308  * num_matrix_components, that corresponds to the indicated table id. Returns
309  * -1 if the table id is invalid.
310  */
311 int AnimChannelMatrixXfmTable::
312 get_table_index(char table_id) {
313  for (int i = 0; i < num_matrix_components; i++) {
314  if (table_id == get_table_id(i)) {
315  return i;
316  }
317  }
318 
319  return -1;
320 }
321 
322 /**
323  * Function to write the important information in the particular object to a
324  * Datagram
325  */
327 write_datagram(BamWriter *manager, Datagram &me) {
329 
330  if (compress_channels) {
331  chan_cat.warning()
332  << "FFT compression of animations is deprecated. For compatibility "
333  "with future versions of Panda3D, set compress-channels to false.\n";
334 
336  chan_cat.error()
337  << "Compression is not available; writing uncompressed channels.\n";
338  compress_channels = false;
339  }
340  }
341 
342  me.add_bool(compress_channels);
343 
344  // We now always use the new HPR conventions.
345  me.add_bool(true);
346 
347  if (!compress_channels) {
348  // Write out everything uncompressed, as a stream of floats.
349  for (int i = 0; i < num_matrix_components; i++) {
350  me.add_uint16(_tables[i].size());
351  for(int j = 0; j < (int)_tables[i].size(); j++) {
352  me.add_stdfloat(_tables[i][j]);
353  }
354  }
355 
356  } else {
357  // Write out everything using lossy compression.
358  FFTCompressor compressor;
359  compressor.set_quality(compress_chan_quality);
360  compressor.set_use_error_threshold(true);
361  compressor.write_header(me);
362 
363  // First, write out the scales and shears.
364  int i;
365  for (i = 0; i < 6; i++) {
366  compressor.write_reals(me, _tables[i], _tables[i].size());
367  }
368 
369  // Now, write out the joint angles. For these we need to build up a HPR
370  // array.
371  pvector<LVecBase3> hprs;
372  int hprs_length = std::max(std::max(_tables[6].size(), _tables[7].size()), _tables[8].size());
373  hprs.reserve(hprs_length);
374  for (i = 0; i < hprs_length; i++) {
375  PN_stdfloat h = _tables[6].empty() ? 0.0f : _tables[6][i % _tables[6].size()];
376  PN_stdfloat p = _tables[7].empty() ? 0.0f : _tables[7][i % _tables[7].size()];
377  PN_stdfloat r = _tables[8].empty() ? 0.0f : _tables[8][i % _tables[8].size()];
378  hprs.push_back(LVecBase3(h, p, r));
379  }
380  const LVecBase3 *hprs_array = nullptr;
381  if (hprs_length != 0) {
382  hprs_array = &hprs[0];
383  }
384  compressor.write_hprs(me, hprs_array, hprs_length);
385 
386  // And now the translations.
387  for(i = 9; i < num_matrix_components; i++) {
388  compressor.write_reals(me, _tables[i], _tables[i].size());
389  }
390  }
391 }
392 
393 /**
394  * Function that reads out of the datagram (or asks manager to read) all of
395  * the data that is needed to re-create this object and stores it in the
396  * appropiate place
397  */
398 void AnimChannelMatrixXfmTable::
399 fillin(DatagramIterator &scan, BamReader *manager) {
400  AnimChannelMatrix::fillin(scan, manager);
401 
402  bool wrote_compressed = scan.get_bool();
403 
404  // If this is false, the file still uses the old HPR conventions, and we'll
405  // have to convert the HPR values to the new convention.
406  bool new_hpr = scan.get_bool();
407 
408  if (!wrote_compressed) {
409  // Regular floats.
410 
411  for (int i = 0; i < num_matrix_components; i++) {
412  int size = scan.get_uint16();
413  PTA_stdfloat ind_table(get_class_type());
414  for (int j = 0; j < size; j++) {
415  ind_table.push_back(scan.get_stdfloat());
416  }
417  _tables[i] = ind_table;
418  }
419 
420  if (!new_hpr) {
421  // Convert between the old HPR form and the new HPR form.
422  size_t num_hprs = std::max(std::max(_tables[6].size(), _tables[7].size()),
423  _tables[8].size());
424 
425  LVecBase3 default_hpr(0.0, 0.0, 0.0);
426  if (!_tables[6].empty()) {
427  default_hpr[0] = _tables[6][0];
428  }
429  if (!_tables[7].empty()) {
430  default_hpr[1] = _tables[7][0];
431  }
432  if (!_tables[8].empty()) {
433  default_hpr[2] = _tables[8][0];
434  }
435 
436  PTA_stdfloat h_table = PTA_stdfloat::empty_array(num_hprs, get_class_type());
437  PTA_stdfloat p_table = PTA_stdfloat::empty_array(num_hprs, get_class_type());
438  PTA_stdfloat r_table = PTA_stdfloat::empty_array(num_hprs, get_class_type());
439 
440  for (size_t hi = 0; hi < num_hprs; hi++) {
441  PN_stdfloat h = (hi < _tables[6].size() ? _tables[6][hi] : default_hpr[0]);
442  PN_stdfloat p = (hi < _tables[7].size() ? _tables[7][hi] : default_hpr[1]);
443  PN_stdfloat r = (hi < _tables[8].size() ? _tables[8][hi] : default_hpr[2]);
444 
445  LVecBase3 hpr = old_to_new_hpr(LVecBase3(h, p, r));
446  h_table[hi] = hpr[0];
447  p_table[hi] = hpr[1];
448  r_table[hi] = hpr[2];
449  }
450  _tables[6] = h_table;
451  _tables[7] = p_table;
452  _tables[8] = r_table;
453  }
454 
455  } else {
456  // Compressed channels.
457  if (!read_compressed_channels) {
458  chan_cat.info()
459  << "Not reading compressed animation channels.\n";
461  return;
462  }
463 
464  FFTCompressor compressor;
465  compressor.read_header(scan, manager->get_file_minor_ver());
466 
467  int i;
468  // First, read in the scales and shears.
469  for (i = 0; i < 6; i++) {
470  PTA_stdfloat ind_table = PTA_stdfloat::empty_array(0, get_class_type());
471  compressor.read_reals(scan, ind_table.v());
472  _tables[i] = ind_table;
473  }
474 
475  // Read in the HPR array and store it back in the joint angles.
476  pvector<LVecBase3> hprs;
477  compressor.read_hprs(scan, hprs, new_hpr);
478  PTA_stdfloat h_table = PTA_stdfloat::empty_array(hprs.size(), get_class_type());
479  PTA_stdfloat p_table = PTA_stdfloat::empty_array(hprs.size(), get_class_type());
480  PTA_stdfloat r_table = PTA_stdfloat::empty_array(hprs.size(), get_class_type());
481 
482  for (i = 0; i < (int)hprs.size(); i++) {
483  if (!new_hpr) {
484  // Convert the old HPR form to the new HPR form.
485  LVecBase3 hpr = old_to_new_hpr(hprs[i]);
486  h_table[i] = hpr[0];
487  p_table[i] = hpr[1];
488  r_table[i] = hpr[2];
489 
490  } else {
491  // Store the HPR angle directly.
492  h_table[i] = hprs[i][0];
493  p_table[i] = hprs[i][1];
494  r_table[i] = hprs[i][2];
495  }
496  }
497  _tables[6] = h_table;
498  _tables[7] = p_table;
499  _tables[8] = r_table;
500 
501  // Now read in the translations.
502  for (i = 9; i < num_matrix_components; i++) {
503  PTA_stdfloat ind_table = PTA_stdfloat::empty_array(0, get_class_type());
504  compressor.read_reals(scan, ind_table.v());
505  _tables[i] = ind_table;
506  }
507  }
508 }
509 
510 /**
511  * Factory method to generate an AnimChannelMatrixXfmTable object.
512  */
516  DatagramIterator scan;
517  BamReader *manager;
518 
519  parse_params(params, scan, manager);
520  me->fillin(scan, manager);
521  return me;
522 }
523 
524 /**
525  * Factory method to generate an AnimChannelMatrixXfmTable object.
526  */
530 }
AnimChannelMatrixXfmTable::write_datagram
virtual void write_datagram(BamWriter *manager, Datagram &me)
Function to write the important information in the particular object to a Datagram.
Definition: animChannelMatrixXfmTable.cxx:327
FFTCompressor
This class manages a lossy compression and decompression of a stream of floating-point numbers to a d...
Definition: fftCompressor.h:40
indent
std::ostream & indent(std::ostream &out, int indent_level)
A handy function for doing text formatting.
Definition: indent.cxx:20
config_linmath.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
animChannelMatrixXfmTable.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
DatagramIterator::get_uint16
uint16_t get_uint16()
Extracts an unsigned 16-bit integer.
Definition: datagramIterator.I:145
pvector
This is our own Panda specialization on the default STL vector.
Definition: pvector.h:42
FFTCompressor::set_quality
void set_quality(int quality)
Sets the quality factor for the compression.
Definition: fftCompressor.cxx:89
DatagramIterator
A class to retrieve the individual data elements previously stored in a Datagram.
Definition: datagramIterator.h:27
BamReader
This is the fundamental interface for extracting binary objects from a Bam file, as generated by a Ba...
Definition: bamReader.h:110
AnimChannelMatrixXfmTable::register_with_read_factory
static void register_with_read_factory()
Factory method to generate an AnimChannelMatrixXfmTable object.
Definition: animChannelMatrixXfmTable.cxx:528
FFTCompressor::write_header
void write_header(Datagram &datagram)
Writes the compression parameters to the indicated datagram.
Definition: fftCompressor.cxx:189
AnimChannelMatrixXfmTable::make_AnimChannelMatrixXfmTable
static TypedWritable * make_AnimChannelMatrixXfmTable(const FactoryParams &params)
Factory method to generate an AnimChannelMatrixXfmTable object.
Definition: animChannelMatrixXfmTable.cxx:514
BamWriter
This is the fundamental interface for writing binary objects to a Bam file, to be extracted later by ...
Definition: bamWriter.h:63
ConstPointerToArray
Similar to PointerToArray, except that its contents may not be modified.
Definition: pointerToArray.h:250
BamReader::get_factory
static WritableFactory * get_factory()
Returns the global WritableFactory for generating TypedWritable objects.
Definition: bamReader.I:177
bamReader.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
TypedWritable
Base class for objects that can be written to and read from Bam files.
Definition: typedWritable.h:35
Datagram
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
Definition: datagram.h:38
FFTCompressor::read_reals
bool read_reals(DatagramIterator &di, vector_stdfloat &array)
Reads an array of floating-point numbers.
Definition: fftCompressor.cxx:576
DatagramIterator::get_stdfloat
PN_stdfloat get_stdfloat()
Extracts either a 32-bit or a 64-bit floating-point number, according to Datagram::set_stdfloat_doubl...
Definition: datagramIterator.I:242
FFTCompressor::set_use_error_threshold
void set_use_error_threshold(bool use_error_threshold)
Enables or disables the use of the error threshold measurement to put a cap on the amount of damage d...
Definition: fftCompressor.cxx:152
FFTCompressor::read_hprs
bool read_hprs(DatagramIterator &di, pvector< LVecBase3 > &array, bool new_hpr)
Reads an array of HPR angles.
Definition: fftCompressor.cxx:681
Datagram::add_stdfloat
void add_stdfloat(PN_stdfloat value)
Adds either a 32-bit or a 64-bit floating-point number, according to set_stdfloat_double().
Definition: datagram.I:133
AnimChannelMatrixXfmTable::get_quat
virtual void get_quat(int frame, LQuaternion &quat)
Returns the rotation component associated with the current frame, expressed as a quaternion.
Definition: animChannelMatrixXfmTable.cxx:186
compose_matrix.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
TypeHandle
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:81
Datagram::add_uint16
void add_uint16(uint16_t value)
Adds an unsigned 16-bit integer to the datagram.
Definition: datagram.I:85
AnimChannelMatrixXfmTable
An animation channel that issues a matrix each frame, read from a table such as might have been read ...
Definition: animChannelMatrixXfmTable.h:31
FFTCompressor::is_compression_available
static bool is_compression_available()
Returns true if the FFTW library is compiled in, so that this class is actually capable of doing usef...
Definition: fftCompressor.cxx:64
AnimChannelMatrixXfmTable::get_shear
virtual void get_shear(int frame, LVecBase3 &shear)
Returns the a, b, and c shear components associated with the current frame.
Definition: animChannelMatrixXfmTable.cxx:219
DatagramIterator::get_bool
bool get_bool()
Extracts a boolean value.
Definition: datagramIterator.I:48
FactoryParams
An instance of this class is passed to the Factory when requesting it to do its business and construc...
Definition: factoryParams.h:36
AnimChannelMatrixXfmTable::get_scale
virtual void get_scale(int frame, LVecBase3 &scale)
Gets the scale value at the indicated frame.
Definition: animChannelMatrixXfmTable.cxx:155
datagram.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
AnimGroup
This is the base class for AnimChannel and AnimBundle.
Definition: animGroup.h:33
AnimChannelMatrixXfmTable::write
virtual void write(std::ostream &out, int indent_level) const
Writes a brief description of the table and all of its descendants.
Definition: animChannelMatrixXfmTable.cxx:270
AnimChannelMatrixXfmTable::has_changed
virtual bool has_changed(int last_frame, double last_frac, int this_frame, double this_frac)
Returns true if the value has changed since the last call to has_changed().
Definition: animChannelMatrixXfmTable.cxx:79
Factory::register_factory
void register_factory(TypeHandle handle, CreateFunc *func, void *user_data=nullptr)
Registers a new kind of thing the Factory will be able to create.
Definition: factory.I:73
config_chan.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
FFTCompressor::read_header
bool read_header(DatagramIterator &di, int bam_minor_version)
Reads the compression header that was written previously.
Definition: fftCompressor.cxx:541
AnimChannelMatrixXfmTable::set_table
set_table
Assigns the indicated table.
Definition: animChannelMatrixXfmTable.h:62
FFTCompressor::write_hprs
void write_hprs(Datagram &datagram, const LVecBase3 *array, int length)
Writes an array of HPR angles to the indicated datagram.
Definition: fftCompressor.cxx:371
animBundle.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
AnimChannelBase::write_datagram
virtual void write_datagram(BamWriter *manager, Datagram &me)
Function to write the important information in the particular object to a Datagram.
Definition: animChannelBase.cxx:39
Datagram::add_bool
void add_bool(bool value)
Adds a boolean value to the datagram.
Definition: datagram.I:34
fftCompressor.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
BamReader::get_file_minor_ver
int get_file_minor_ver() const
Returns the minor version number of the Bam file currently being read.
Definition: bamReader.I:83
datagramIterator.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
AnimChannel< ACMatrixSwitchType >
indent.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
AnimChannelMatrixXfmTable::get_pos
virtual void get_pos(int frame, LVecBase3 &pos)
Returns the x, y, and z translation components associated with the current frame.
Definition: animChannelMatrixXfmTable.cxx:204
AnimChannelMatrixXfmTable::clear_all_tables
void clear_all_tables()
Removes all the tables from the channel, and resets it to its initial state.
Definition: animChannelMatrixXfmTable.cxx:260
bamWriter.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
AnimChannelMatrixXfmTable::get_value_no_scale_shear
virtual void get_value_no_scale_shear(int frame, LMatrix4 &value)
Gets the value of the channel at the indicated frame, without any scale or shear information.
Definition: animChannelMatrixXfmTable.cxx:131
AnimChannelMatrixXfmTable::get_value
virtual void get_value(int frame, LMatrix4 &mat)
Gets the value of the channel at the indicated frame.
Definition: animChannelMatrixXfmTable.cxx:112
parse_params
void parse_params(const FactoryParams &params, DatagramIterator &scan, BamReader *&manager)
Takes in a FactoryParams, passed from a WritableFactory into any TypedWritable's make function,...
Definition: bamReader.I:275
AnimChannelMatrixXfmTable::get_hpr
virtual void get_hpr(int frame, LVecBase3 &hpr)
Returns the h, p, and r components associated with the current frame.
Definition: animChannelMatrixXfmTable.cxx:170
FFTCompressor::write_reals
void write_reals(Datagram &datagram, const PN_stdfloat *array, int length)
Writes an array of floating-point numbers to the indicated datagram.
Definition: fftCompressor.cxx:202