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drag [-attenuation float] [-directionX float] [-directionY float] [-directionZ float] [-magnitude float] [-maxDistance linear] [-name string] [-perVertex boolean] [-position linear linear linear] [-useDirection boolean]
[objects]
drag is undoable, queryable, and editable.
Drag exerts a friction, or braking force proportional to the speed of
a moving object. If direction is not enabled, the drag acts opposite
to the current velocity of the object. If direction is enabled, it acts
opposite to the component of the velocity in the specified direction.
The force is independent of the position of the affected object.
The transform is the associated dependency node.
Use connectDynamic to cause the field to affect a dynamic object.
If fields are created, this command returns the names of each
of the fields. If a field was queried,
the results of the query are returned. If a field was edited, the field
name is returned.
If object names are provided or the active selection list is non-empty,
the command creates a field for every object in the list and calls
addDynamic to add it to the object. If the
list is empty, the command defaults to -pos 0 0 0.
Setting the -pos flag with objects named on the command line is an error.
In query mode, return type is based on queried flag.
addDynamic, connectDynamic, particle
attenuation, directionX, directionY, directionZ, magnitude, maxDistance, name, perVertex, position, useDirection
| Long name (short name) |
Argument types |
Properties |
-position(-pos)
|
linear linear linear
|
  
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|
Position in space where you want to place a field.
The gravity then emanates from this position in space rather
than from an object. Note that you can both use -pos
(creating a field at a position) and also provide object names.
|
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-magnitude(-m)
|
float
|
|
|
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-attenuation(-att)
|
float
|
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|
Attentuation rate of field
|
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-maxDistance(-mxd)
|
linear
|
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|
Maximum distance at which field is exerted.
-1 indicates that the field has no maximum distance.
|
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-name(-n)
|
string
|
|
|
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-perVertex(-pv)
|
boolean
|
|
|
Per-vertex application. If this flag is set true, then each
individual point (CV, particle, vertex,etc.) of the chosen object
exerts an identical copy of the force field. If this flag is set to
false, then the force is exerted only from the geometric center of
the set of points.
|
|
-directionX(-dx)
|
float
|
|
|
X-component of direction.
|
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-directionY(-dy)
|
float
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Y-component of direction.
|
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-directionZ(-dz)
|
float
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|
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-useDirection(-ud)
|
boolean
|
|
|
Enable/disable direction. Drag will use -dx/-dy/-dz arguments if
and only if this flag is set true.
|
|
Flag can appear in Create mode of command
|
Flag can appear in Edit mode of command
|
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Flag can appear in Query mode of command
|
Flag can be used more than once in a command.
|
// Creates a drag field resisting in direction (0,1,0.5).
drag -dx 0 -dy 1.0 -dz 0.5 -useDirection true;
// Edits the acceleration value of the field myDrag
drag -e -m 0.75 myDrag;
// Queries myDrag for its magnitude
drag -q -m myDrag;