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Flags. MEL
examples.
getParticleAttr [-array boolean] [-attribute string] [-object string] selectionItem
getParticleAttr is undoable, NOT queryable, and NOT
editable.
This action will return either an array of values, or the average
value and maximum offset, for a specied per-particle attribute of a
particle object or component. If a particle component is specified
on the command line, values are returned for that component only.
If an object name is given instead, values are returned for all
particles in that object. If no object name is passed, but a
particle object or component is selected, values are returned for
the selection. If you list components, they must all be from the
same particle object; the action ignores all objects after the
first. Likewise if you list more than one object, the actiion will
return values only for the first one.
particle, setParticleAttr
array, attribute, object
| Long name (short name) |
Argument types |
Properties |
-attribute(-at) |
string |
 |
|
Tells the action which attribute you want the value of. Must be
a per-particle attribute. |
|
-object(-o) |
string |
|
|
This flag is obsolete. Instead of using it, please pass the
name of the object and/or components you want on the command line.
See the examples. |
|
-array(-a) |
boolean |
|
|
Tells the action whether you want a full array of data. If set
true, the action returns an array of floats containing the values
for all the specified particles. If set false (the default), the
action returns the average value and the maximum offset from the
average over the component. If the attribute is a vector attribute,
the action returns six values: Average X, Average Y, Average Z,
Maximum offset in X, Y, and Z of component. |
|
| 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 be used more than once in a
command. |
getParticleAttr -at velocity particle1;
// This will return the average velocity for the entire particle
// object as well as the maximum offset from the average.
getParticleAttr -at velocity particleShape1.pt[0:7] particleShape1.pt[11];
// This will return the average velocity for particles 0-7 and 11
// as well as the maximum offset from the average.
getParticleAttr -at position -array true particleShape1.pt[0:7] particleShape1.pt[11];
// This will return an array of 27 floats containing the position
// values for the nine specified particles.