relativePath - Get path to node associated with block or subsystem - MATLAB (original) (raw)

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Main Content

Get path to node associated with block or subsystem

Syntax

Description

[opPath](#d126e124223) = relativePath([op](#d126e124161),[block](#d126e124187)) returns a path from the root node of the operating point data treeop to the node associated with a given block or subsystem,block. The root node is specified by theIdentifier property of the OperatingPoint object.

example

Examples

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Open the Permanent Magnet DC Motor example model and create anOperatingPoint object named op using the Start values from the model:

openExample('simscape/PermanentMagnetDCMotorExample') op = simscape.op.create(gcs, 'Start')

op =

OperatingPoint with children:

OperatingPoints:

ChildId Size

'DC Motor' 1x1 'DC Voltage' 1x1 'ERef' 1x1 'Load Torque' 1x1 'MRRef Motor' 1x1 'MRRef Torque' 1x1 'Sensing' 1x1 'Step Input' 1x1

Open the DC Motor subsystem, select theInductor block, and find the relative path to this block in the operating point data hierarchy:

relPath = relativePath(op, gcb)

relPath =

'DC Motor/Rotor Inductance'

When you determine the relative path for a block, the operating point does not need to contain a node corresponding to that block. You can obtain operating point data for a block elsewhere, and then use therelativePath function to determine the correct location for inserting this data in the operating point for the current model.

Open the Permanent Magnet DC Motor example model:

openExample('simscape/PermanentMagnetDCMotorExample')

Create an empty OperatingPoint object namedop:

op = simscape.op.OperatingPoint

op =

OperatingPoint with no children.

Set the Identifier property of theOperatingPoint object to match the name of the model:

op.Identifier = 'PermanentMagnetDCMotorExample';

In the model, open the DC Motor subsystem, select theInductor block, and find the relative path to this block in the operating point data hierarchy:

relPath = relativePath(op, gcb)

relPath =

'DC Motor/Rotor Inductance'

Input Arguments

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Operating point in the workspace, specified as anOperatingPoint object. TheIdentifier property of theOperatingPoint object must match the name of the model.

Block or subsystem name or identifier, specified as a handle, full path to a block or subsystem in the model, or a valid Simulink identifier (SID).

Data Types: double | char | string

Output Arguments

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Path to the node corresponding to the specified block, returned as a character vector, relative to the root node of the operating point data tree. The root node is specified by the Identifier property of the OperatingPoint object.

Version History

Introduced in R2017b