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## igeo
Class ITensionLineOnCurve

    java.lang.Object
      igeo.IObject
          igeo.ICurve
              igeo.ITensionLineOnCurve

All Implemented Interfaces:
  ICurveI, ICurveOp, IParameter, ITensionI, ITransformable

    public class ITensionLineOnCurve

extends ICurve
implements ITensionI

Class of IDynamicObject to simulate tension force between two particles.

Version:
  0.7.0.0;
Author:
  Satoru Sugihara

Field Summary
`ITensionOnCurve` | `tension`

Fields inherited from class igeo.ICurve
`curve`

Fields inherited from class igeo.IObject
`attribute, dynamics, graphics, parameter, server`

Fields inherited from interface igeo.ITensionI
`defaultTension`

Constructor Summary
`ITensionLineOnCurve(IParticleOnCurve p1, IParticleOnCurve p2)`
`ITensionLineOnCurve(IParticleOnCurve p1, IParticleOnCurve p2, double tension)`

Method Summary
`boolean` | `constant()` if constantTension is true, amount of force is always constant and it's equals to tension.
`ITensionLineOnCurve` | `constant(boolean cnst)`
`void` | `initTensionLine(IParticleOnCurve p1, IParticleOnCurve p2)`
`IParticleI` | `particle(int i)` alias of pt(int)
`IParticleI` | `particle1()` alias of pt1()
`IParticleI` | `particle2()` alias of pt2()
`IVec` | `pos(int i)` position of particle(i)
`IVec` | `pos1()` position of particle1
`IVec` | `pos2()` position of particle1
`IParticleI` | `pt(int i)` getting end point.
`IParticleI` | `pt1()` getting end point1.
`IParticleI` | `pt2()` getting end point2.
`double` | `tension()` tension is a coefficient to convert distance of two points to amount of force.
`ITensionLineOnCurve` | `tension(double tensionIntensity)`

Methods inherited from class igeo.ICurve
`add, add, add, add, add, add, add, addCP, addCP, addCP, addCP, clr, clr, clr, clr, clr, clr, clr, clr, clr, clr, clr, clr, clr, clr, cp, cp, cp, cp, cp, cp, cpNum, cpNum, cpNum, cps, createGraphic, deg, deg, deg, div, div, dup, end, endCP, ep, ep, epNum, epNum, epNum, flip, get, hide, hsb, hsb, hsb, hsb, initCurve, insertCP, insertCP, isClosed, isClosed, isClosed, isRational, isRational, isRational, isValid, knot, knot, knotNum, knotNum, knotNum, knots, knots, knots, layer, len, len, len, mirror, mirror, mul, mul, mv, mv, mv, name, neg, num, num, num, pt, pt, ref, ref, removeCP, removeCP, removeCP, rev, rot, rot, rot, rot, rot, rot, rot, rot, rot2, rot2, rot2, rot2, rot2, rot2, scale, scale, scale, scale, scale1d, scale1d, scale1d, scale1d, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setHSBColor, setHSBColor, setHSBColor, setHSBColor, shear, shear, shear, shear, shearXY, shearXY, shearXY, shearXY, shearYZ, shearYZ, shearYZ, shearYZ, shearZX, shearZX, shearZX, shearZX, show, start, startCP, sub, sub, sub, tan, tan, transform, transform, transform, transform, translate, translate, translate, u, u, uend, uend, uend, ustart, ustart, ustart`

Methods inherited from class igeo.IObject
`addDynamics, alpha, alphaInt, attr, attr, blue, blueInt, clearDynamics, clearGraphics, clr, del, deletDynamics, deleteDynamics, deleteDynamics, deleteGraphic, dynamicsNum, getColor, getDynamics, getGraphic, getGraphic, getParameter, graphicsNum, green, greenInt, initGraphic, initObject, isVisible, layer, layer, name, red, redInt, resetGraphic, server, setParameter, syncColor, updateGraphic, visible`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### tension

    public ITensionOnCurve tension

Constructor Detail

### ITensionLineOnCurve

    public ITensionLineOnCurve(IParticleOnCurve p1,
                               IParticleOnCurve p2)

### ITensionLineOnCurve

    public ITensionLineOnCurve(IParticleOnCurve p1,
                               IParticleOnCurve p2,
                               double tension)

Method Detail

### initTensionLine

    public void initTensionLine(IParticleOnCurve p1,
                                IParticleOnCurve p2)

### tension

    public double tension()

  Description copied from interface: `ITensionI`
  tension is a coefficient to convert distance of two points to amount of force.

  Specified by:
    `tension` in interface `ITensionI`

### tension

    public ITensionLineOnCurve tension(double tensionIntensity)

  Specified by:
    `tension` in interface `ITensionI`

### constant

    public boolean constant()

  Description copied from interface: `ITensionI`
  if constantTension is true, amount of force is always constant and it's equals to tension. Only direction of force changes. But if the distance is zero, force is also zero.

  Specified by:
    `constant` in interface `ITensionI`

### constant

    public ITensionLineOnCurve constant(boolean cnst)

  Specified by:
    `constant` in interface `ITensionI`

### pt

    public IParticleI pt(int i)

  getting end point. i==0 or i==1

  Specified by:
    `pt` in interface `ITensionI`

### particle

    public IParticleI particle(int i)

  alias of pt(int)

  Specified by:
    `particle` in interface `ITensionI`

### pos

    public IVec pos(int i)

  position of particle(i)

  Specified by:
    `pos` in interface `ITensionI`

### pt1

    public IParticleI pt1()

  getting end point1.

  Specified by:
    `pt1` in interface `ITensionI`

### particle1

    public IParticleI particle1()

  alias of pt1()

  Specified by:
    `particle1` in interface `ITensionI`

### pos1

    public IVec pos1()

  position of particle1

  Specified by:
    `pos1` in interface `ITensionI`

### pt2

    public IParticleI pt2()

  getting end point2.

  Specified by:
    `pt2` in interface `ITensionI`

### particle2

    public IParticleI particle2()

  alias of pt2()

  Specified by:
    `particle2` in interface `ITensionI`

### pos2

    public IVec pos2()

  position of particle1

  Specified by:
    `pos2` in interface `ITensionI`

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