mphgrain
Evaluate expressions on ray trajectories.
Syntax
pd = mphgrain(model)
pd = mphgrain(model,'expr',{e1,…,en},…)
Description
pd = mphgrain(model) returns grain positions and grain velocities at all time steps stored in model with a Grain Dataset.
pd = mphgrain(model,'expr',{e1,…,en},…) returns grain positions, grain velocities and expressions e1,…,en evaluated on grain trajectories.
pd is a structure with fields p, v, d#, t, expr, and unit.
The field p contains the position of the grains.
The field v contains the velocity of the grains.
The field d# contains the result of evaluation #.
The field t contains the time for evaluation.
The field expr contains the evaluated expressions.
The field unit contains the unit of evaluations.
The function mphgrain accepts the following property/value pairs:
Table 6-21: property/value pairs for the mphgrain command.
property
value
default
description
dataonly
on | off
off
Return only expression values
dataset
String
 
Particle/Ray dataset tag
expr
String | cell array
 
Expressions to evaluate
outersolnum
Positive integer
1
Outer solution for evaluation
solnum
Positive integer array | all | end
all
Inner solution for evaluation
t
Double array
 
Time for evaluation
times
on | off
on
Return times
velocities
on | off
on
Return velocities