Modelica - 指定模拟默认参数
我知道我可以更改 File_init.txt 的定义，但我想知道是否有某种方法可以在类文件（.mo）或编译器（omc）的指令中执行此操作。
长话短说，是否有像下面的（伪代码）示例这样的指令？
class MainSim
extends BaseSim;
...
simulation.stop = 1E-9;
simulation.step = 1E-12;
simulation.outputFormat = "csv";
...
equation
...
end MainSim;
I know I can change File_init.txt's definitions, but I was wondering if there is some way to do it in the class file (.mo) or in a directive to the comiler (omc).
In an attempt to alleviate myself of the lack of a 'has-a' relationship in Modelica, I am writing a Perl wrapper that writes the highest level of my Modelica simulation (with my has-a's turned into if and when statements) and the compiles (omc +s then make) and simulates. This would work perfectly if I could specify such parameters as stop, step, outputFormat in some other way, rather than having to open the init file and do a regexp replace on them which is really clunky.
Long story short, is there some directive like the (pseudo-code) example below?
class MainSim
extends BaseSim;
...
simulation.stop = 1E-9;
simulation.step = 1E-12;
simulation.outputFormat = "csv";
...
equation
...
end MainSim;
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几乎乔尔，正确的方法是：
model 模型注释(experiment(StopTime=6.28)); ... end Model;您还可以使用 Modelica 标准库中的“示例”模型（通常放置在
.Examples子包中）。他们都应该有该注释（如果没有，请随时报告:)）。Almost Joel, the correct way would be:
model Model annotation( experiment( StopTime=6.28 ) ); ... end Model;You can also have at "example" models (normally placed in a
.Examplessubpackage) from the Modelica Standard Library. They all should have that annotation in place (and if not feel free to report it :)).我不知道OMC如何处理这个问题，但是实验参数有标准注释。您可以在规范（版本 3.2）的第 17.7 节中找到信息。
看一下，如果这解决了您的问题，请告诉我。
I don't know how OMC handles this, but there are standard annotations for experiment parameters. You can find the information in Section 17.7 of the specification (version 3.2).
Take a look at that and let me know if that addresses your question.