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newton( selectionList , [attenuation=float], [magnitude=float], [maxDistance=linear], [minDistance=float], [name=string], [perVertex=boolean], [position=[linear, linear, linear]])

Note: Strings representing object names and arguments must be separated by commas. This is not depicted in the synopsis.

newton is undoable, queryable, and editable.

A Newton field pulls an object towards the exerting object with force dependent on the exerting object's mass, using Newton's universal law of gravitation.

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.

Return value


In query mode, return type is based on queried flag.


addDynamic, connectDynamic, particle


attenuation, magnitude, maxDistance, minDistance, name, perVertex, position
Long name (short name) Argument types Properties
position(pos) [linear, linear, linear] queryeditmultiuse
Position in space where you want to place a field. The newton 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.
magnitude(m) float queryedit
Strength of field.
attenuation(att) float queryedit
Attentuation rate of field
maxDistance(mxd) linear queryedit
Maximum distance at which field is exerted. -1 indicates that the field has no maximum distance.
name(n) string queryedit
name of field
perVertex(pv) boolean queryedit
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 froce is exerted only from the geometric center of the set of points.
minDistance(mnd) float queryedit
Minimum distance at which field is exerted. Distance is in the denominator of the field force equation. Setting md to a small positive number avoids bizarre behavior when the distance gets extremely small.

Flag can appear in Create mode of command Flag can appear in Edit mode of command
Flag can appear in Query mode of command Flag can have multiple arguments, passed either as a tuple or a list.

Python examples

import maya.cmds as cmds

cmds.newton( 'particle1', m=5.0, mxd=2.0 )
# Creates a newton field with magnitude 5.0 and maximum distance 2.0,
# and adds it to the list of fields particle1 owns.

cmds.newton( pos=(-2, 0, 4) )
# Creates a newton field at position (0,2,4) in world coordinates,
# with default magnitude(1.0), attentuation (1.0),
# and max distance (5.0).

cmds.newton( 'newtonField1', e=1, att=0.98 )
# Edits the acceleration value of the field named newtonField1

cmds.newton( 'newtonField1', q=1, m=1 )
# Queries newtonF ield1for its magnitude.

cmds.newton( 'newtonField1', e=1, mxd=10.0 )
# Changes the maximum distance of the field called
# "newtonField1" to 10.0.

cmds.newton( m=2.0 )
# Creates a newton field with magnitude 2.0 for every active selection.
# If no there are active
# selections, creates such a field at world position (0,0,0).