predec.rst

Predeclared Variables

hoc_ac

Syntax:

h.hoc_ac_

A variable used by the graphical interface to communicate with the interpreter. It is very volatile. It sometimes holds a value on a function call. If this value is needed by the user it should be copied to another variable prior to any other function call.

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hoc_obj

Syntax:

h.hoc_obj_[0]

h.hoc_obj_[1]

Description:

When a line on a Graph is picked with the gui_pickvector tool two new Vector's are created containing the y and x coordinates of the line. The y vector is referenced by hoc_obj[0] and the x vector is referenced by hoc_obj[1].

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hoc_cross_x

Syntax:

h.hoc_cross_x_

Description:

X coordinate value of the last graph_crosshair manipulation.

graph_crosshair

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hoc_cross_y

Syntax:

h.hoc_cross_y_

Description:

Y coordinate value of the last graph_crosshair manipulation.

graph_crosshair