MATLAB REAL-TIME WORKSHOP 7 - TARGET LANGUAGE COMPILER Service Manual download pdf (Page 25)

The model.rtw File

2-5

This example shows several records and corresponding subrecords by use of

arrows.

Parameter (Scope 4) is a subrecord of Block (Scope 3), which is a

subrecord of

System (Scope 2), which in turn is a subrecord of CompiledModel

(Scope 1).

The

model.rtw file uses curly braces { and } to open and close scopes. Using

scopes, you can access any value within the

model.rtw file. The scope in this

example begins with

CompiledModel. You use periods (.) to access values

within particular scopes. For example, to access

Name within CompiledModel,

you would use

CompiledModel.Name

To access Identifier within System within CompiledModel, you would use

CompiledModel.System.Identifier

To access Name within the second Parameter record within Block within System

within

CompiledModel, you would use

CompiledModel.System.Block.Parameter[2].Name

This process can be simplified by using the %with directive. See the “Scoping”

section later in this chapter for more information.

The identifier and record name become TLC variables when the Target

Language Compiler loads the

model.rtw file.

The Target Language Compiler lets you traverse the hierarchy defined by

model.rtw so that you can customize the output to suit your particular needs.

To be able to do this, you must understand the structure of the

model.rtw file.

Appendix A contains a complete description of the

model.rtw file.

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MATLAB REAL-TIME WORKSHOP 7 - TARGET LANGUAGE COMPILER Service Manual Page 25