Cytosim PI Cytoskeleton Simulator

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Variables
Parameters of Single
All object parameters

## Variables
std::string | hand
| name of Hand
real | stiffness
| stiffness of link
real | length
| resting length of link
real | diffusion
| diffusion coefficient
Confinement | confine
| Confinement can be `none`, `inside` (default) or `surface`.
real | confine_stiff
| Unused Parameter: confinement stiffness (this is specified as `confine`[1])
std::string | confine_space
| name of space for confinement (this is specified as `confine`[2])
std::string | activity
| specialization More...

## Detailed Description

## Variable Documentation

std::string activity

List of classes accessible by specifying single:activity:

`activity` | Class | Description
--- | --- | ---
`diffuse` | Single | a single Hand that is mobile (default)
`fixed` | Picket | a single Hand anchored at a fixed position

Another class Wrist is used automatically to anchor a Single to a Mecable.

Example:

set single grafted
{
hand = kinesin
stiffness = 100
activity = fixed
}

A newly created Single can be anchored to a Mecable:

new single NAME {
base = CLASS_NAME, INTEGER_REF, INTEGER_INDEX
}

where:

- CLASS_NAME is the name of the object class (eg. solid)
- INTEGER_REF designates the object:
  - 1 for first object
  - 2 for second...
  - 0 designates the last object,
  - -1 is the penultimate one, etc.
- INTEGER_INDEX designates a point on this object:
  - 0 = first point
  - 1 = second point...

if INTERGER1 is negative, the last object is used.

You can attach a Single to a fiber:

new single protein
{
attach = INTEGER, REAL
}

where:

- INTEGER designates the fiber:
  - 1 for the first fiber
  - 2 for the second, etc
  - a negative number indicates the last fiber created
- REAL is the abscissa of the attachment point (0=MINUS_END)