tennsS v1.53 Reference Manual

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Smooth2dp_P_S

A component object that implements a 2-dimensional smooth pursuit system. It is based on a fixed network of state nodes, with nodes represents the position, velocity and acceleration, in the x and y dimensions, for each of the target, the eye and the retinal slip. There are 19 nodes in total. It is assumed that the two eye velocity nodes are generated externally. The two target position nodes may also be generated externally or they may be generated internally, by defining an object to specify the target position in each dimension. The target objects are defined by the references <xtarget> and <ytarget>, given relative to the component. The target objects are references and must be of type Particle. Internal and external packets are both of type data_type.

Naming
    xtargetsource  source for target position in x
    ytargetsource  source for target position in y
    xtarget        node for target position in x
    xtargetvel     node for target velocity in x
    xtargetacc     node for target acceleration in x
    ytarget        node for target position in y
    ytargetvel     node for target velocity in y
    ytargetacc     node for target acceleration in y
    xeye           node for eye position in x
    xeyevel        node for eye velocity in x
    xeyeacc        node for eye acceleration in x
    yeye           node for eye position in y
    yeyevel        node for eye velocity in y
    yeyeacc        node for eye acceleration in y
    xslip          node for retinal slip in x
    xslipvel       node for retinal slip velocity in x
    xslipacc       node for retinal slip acceleration in x
    yslip          node for retinal slip in y
    yslipvel       node for retinal slip velocity in y
    yslipacc       node for retinal slip acceleration in y
    saccade        node indicating a saccade is in progress


Configuration
    xtarget=<ref>  object defining the target in x (none)
    ytarget=<ref>  object defining the target in y (none)
    interval=<data>
                   time between saccades (0.05)
    onset=<data>   time to onset of saccade (0.1)
    duration=<data>
                   duration of saccade (0.2)
    threshold=<x data>,<y data>
                   saccade threshold in x and y (0.25,0.25)


Source Points
    saccade        saccade level
    saccadedetect  saccade detected

Trigger points
    onset          onset of saccade
    detect         detection of saccade

Commands
    saccade
        trigger a saccade

Derived Classes

Go to the previous, next section, table of contents. Document generated Mon Jun 16 02:19:05 GMT 2003