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--- exporting_six_degree_of_freedom_data [2024/06/18 20:19] – sgranger
+++ exporting_six_degree_of_freedom_data [2024/07/12 13:25] (current) – removed sgranger
@@ Line 1: / Line 1: @@
-{{{{{{{{==== exporting 6 dof data ====
-exporting 6 degree of freedom data to an ascii format as either an
-\\
-**origin and quaternion**\\
-**or**\\
-**origin and 3x3 rotation matrix**
-==== exported file format ====
-visual3d loads 6 degree of freedom from ascii data files with the following formats.
-=== rotation matrix based ===
-|    |filename     |filename        |filename        |filename        |filename        |filename        |filename        |filename        |filename        |filename        |filename        |filename        |filename        |
-|    |time         |origin          |origin          |origin          |rotation        |rotation        |rotation        |rotation        |rotation        |rotation        |rotation        |rotation        |rotation        |
-|    |frame_numbers|link_model_based|link_model_based|link_model_based|link_model_based|link_model_based|link_model_based|link_model_based|link_model_based|link_model_based|link_model_based|link_model_based|link_model_based|
-|    |original     |body1           |body1           |body1           |body1           |body1           |body1           |body1           |body1           |body1           |body1           |body1           |body1           |
-|item|0            |x               |y               |z               |0               |1               |2               |3               |4               |5               |6               |7               |8               |
-|1   |0.0          |0.564162        |0.002198        |0.086599        |0.648289        |-0.680243       |-0.342039       |0.259806        |-0.224631       |0.939171        |-0.715696       |-0.697719       |0.031104        |
-|2   |0.032        |0.569361        |0.004844        |0.081942        |0.712005        |-0.652892       |-0.258418       |0.255689        |-0.101686       |0.961396        |-0.653967       |-0.750593       |0.094538        |
-\\
-the origin is at the proximal end of the segment
-\\
-the rotation matrix is represented as
-|    |||0|1|2|||
-|[r]=|||3|4|5|||
-|    |||6|7|8|||
-=== quaternion based ===
-|    |filename     |filename        |filename        |filename        |filename        |filename        |filename        |filename        |
-|    |time         |origin          |origin          |origin          |quaternion      |quaternion      |quaternion      |quaternion      |
-|    |frame_numbers|link_model_based|link_model_based|link_model_based|link_model_based|link_model_based|link_model_based|link_model_based|
-|    |original     |body1           |body1           |body1           |body1           |body1           |body1           |body1           |
-|item|0            |x               |y               |z               |0               |1               |2               |3               |
-|1   |0.0          |0.9782          |0.5654          |-1.0257         |0.298           |-0.6755         |0.2496          |-0.6264         |
-|2   |0.032        |0.9782          |0.5654          |-1.0257         |0.298           |-0.6755         |0.2496          |-0.6264         |
-\\
-the file format is column based. additional rigid bodies can be added as new columns with the same format.
-==== example 1 ====
-exporting the position and orientation of segment rft as an origin and quaternion
-\\
-**export_data_to_ascii_file**
-! /file_name=
-/signal_types=frame_numbers+link_model_based+link_model_based
-/signal_names=time+origin+quaternion
-/signal_folder=original+rft+rft
-! /start_label=
-! /end_label=
-! /use_point_rate=false
-! /normalize_data=false
-! /normalize_points=101
-! /export_mean_and_std_dev=false
-! /use_p2d_format=false
-**;**
-\\
-exporting the position and orientation of segment rft as an origin and rotation
-\\
-**export_data_to_ascii_file**
-! /file_name=
-/signal_types=frame_numbers+link_model_based+link_model_based
-/signal_names=time+origin+rotation
-/signal_folder=original+rft+rft
-! /start_label=
-! /end_label=
-! /use_point_rate=false
-! /normalize_data=false
-! /normalize_points=101
-! /export_mean_and_std_dev=false
-! /use_p2d_format=false
-**;**
-==== example 2 ====
-open the text file that was just created. select file -> open. select the viewer for .txt files. select "aurora.txt".
-mergeaurorafiles4.gif
-the file will be loaded into memory. the aurora file contains position and rotation data for a rigid body. it will appear in visual3d as linkmodel_based items containing the
-origin (3 components)
-quaternion (4 components).
-mergeaurorafiles5.gif
-visual3d typically works with motion capture markers, so to maximize your ability to work with this data, you can create a set of 3 targets per rigid body using the following command.
-**create_targets_for_linkmodelbased_rotations**
-/signal_folders=port_01+port_02+port_03+port_04
-**;**
-targets for each rigid body should appear in the data tree.
-it is possible to save this data to a c3d formatted file, but the link model data (e.g. the original translation and quaternion will be lost, so it is recommended that you save this data to a cmo file.
-mergeaurorafiles7.gif
-if you need a static trial for modeling the data, you can save the first frame of data to a c3d file.
-mergeaurorafiles8.gif
-}}}}}}}}