Commit a6e24e65 authored by adud's avatar adud

deleted old version

parent 93715bb7
\title{Sign parameters}
Convention: Parameters beginning with a capital letter are parameters containing other parameters. The others take direct values.
The hand part of the sign depends on the type of movement. We define a Movement\_Unit for each kind of movement we could encounter. This Movement\_Unit is usually composed of a initial configuration, a final configuration and a movement between these two configurations (cf ONE\_HAND\_Movement\_Unit, which is the simplest).
Hand_Movement_Unit: SYM_Movement_Unit
| TWO_HANDS_Movement_Unit;
| ONE_HAND_Movement_Unit;
SYM_Movement_Unit: {
type: symmetry
initial_configuration: SYM_configuration;
final_configuration: SYM_configuration;
movement: Movement;
TWO_HANDS_Movement_Unit: {
Initial_NDH_configuration: configuration;
Final_NDH_configuration: configuration;
NDH_Movement: Movement;
Initial_DH_configuration: configuration;
Final_DH_configuration: configuration;
DH_Movement: Movement;
ONE_HAND_Movement_Unit: {
Initial_configuration: configuration;
Final_configuration: configuration;
Movement: Movement;
The configuration parameter contains all the information needed to successfully draw one hand or both hands working together (in the right position, shape and orientation).
SYM_configuration: {
DH_shape: from shape repertory;
DH_orientation: Hand_orientation;
Hand_synchronization: Relative_position;
Barycenter_location: Location;
configuration : {
shape : from shape repertory;
orientation: Orientation;
reference_point: from hand_position repertory in location_repertories;
#the point of hand we place comparatively to the body
location: Location;
The Orientation is used to determine where the hand of known shape should be facing.
axes = Right | Left | Up | Down | Forward | Backward;
direction = axes | (axes,axes);
Orientation : {
Palm : direction;
Fingertips : direction;
The Location is kind of polymorphic. It can be used to position one hand in front of the body (face included), or to place the dominating hand relatively to the non-dominating hand. It can also be used to position the barycenter of both hands in front of the body.
The place is a point of the body, face, or hand. The distance indicates how far the object we are placing is from this point. A distance of 0 means the object is in contact with this point.
location_repertories : body_position | face_position | elbow | hand_position;
Location : {
place : from location_repertories;
distance : [0;1;2;3];
\subsection{Relative position}
This parameter is only used in the case of symmetrical movements, to position each hand relatively to the other. We choose a place on the hand (which is the same for both hand), and a distance between the hands (and more precisely between the points chosen for each hand). This way, we can define a contact between two precise parts of the hand.
Relative_position: {
hand_place: from hand_position repertory in location_repertories;
distance: [0;1;2;3];
The Movement characterizes the transition between the initial and final configurations. It is composed of a kind of trajectory (curved, straight, etc.) and a repetition which indicates how many times the movement is being done. (ex: [élève] with a repetition of 2). A 0.5 repetition means that the movement returns to initial configuration at the end of the sign.
Movement : {
trajectory : None | from trajectory repertory;
Repetition : {
Repetition_on: "whole movement" | "configuration change";
Repetition_number: {1; 1.5; 2; 2.5; 3};
Shoulder_Movement_Unit: upward | backward | left | right;
Face_Movement_Unit: {
Eyes : Eyes_configuration;
Facial_expression: from emotion repertory;
Lips: word | lips_configuration | visible_tongue;
Eyes_configuration: {
Eyes_direction: "interlocutor" | signing_space: place;
Eyes_shape: "open" | "closed" | "barely open" | "widely open";
Eyebrows: "raised" | "frowning" | "resting";
word: from repertory; #contains "pi", "paf", "pu", etc.
lips_configuration: from repertory;
#contains "vibrating", "expiring", "pinched", etc.
visible_tongue: from repertory;
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