Documentation

linqueryHasDiagnostics

Query object for finding blocks that have diagnostic messages regarding their linearization

Description

linqueryHasDiagnostics creates a custom query object for finding all the blocks in a linearization result that have diagnostic messages regarding their linearization.

When you linearize a Simulink® model, you can create a LinearizationAdvisor object that contains diagnostic information about individual block linearizations. To find block linearizations that satisfy specific criteria, you can use the find function with custom query objects. Alternatively, you can analyze linearization diagnostics using the Linearization Advisor in the Linear Analysis Tool. For more information on finding specific blocks in linearization results, see Find Blocks in Linearization Results Matching Specific Criteria.

Creation

Syntax

query = linqueryHasDiagnostics

Description

example

query = linqueryHasDiagnostics creates a query object for finding all the blocks in a LinearizationAdvisor object that have diagnostic messages regarding their linearization.

Properties

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Query type, specified as 'Has Diagnostics'.

Query description, specified as 'Blocks that have Linearization Diagnostic Messages'. You can add your own description to the query object using this property.

Usage

After creating a linqueryHasDiagnostics query object, you can:

  • Find all the blocks in a LinearizationAdvisor object that have diagnostic messages regarding their linearization by using the linqueryHasDiagnostics query directly with the find command.

  • Create a CompoundQuery object by logically combining the linqueryHasDiagnostics query with other query objects.

Object Functions

findFind blocks in linearization results that match specific criteria

Examples

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Load the Simulink model.

mdl = 'scdpendulum';
load_system(mdl)

Linearize the model and obtain the LinearizationAdvisor object.

opts = linearizeOptions('StoreAdvisor',true);
io = getlinio(mdl);
[sys,op,info] = linearize(mdl,io,opts);
advisor = info.Advisor;

Create query object, and find all blocks with diagnostic messages regarding their linearization.

qDiag = linqueryHasDiagnostics;
advDiag = find(advisor,qDiag)
advDiag = 
  LinearizationAdvisor with properties:

               Model: 'scdpendulum'
      OperatingPoint: [1x1 opcond.OperatingPoint]
    BlockDiagnostics: [1x1 linearize.advisor.BlockDiagnostic]
           QueryType: 'Has Diagnostics'

Alternative Functionality

App

You can also create custom queries for finding specific blocks in linearization results using the Linearization Advisor in the Linear Analysis Tool. For more information, see Find Blocks in Linearization Results Matching Specific Criteria.

Introduced in R2017b

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