Is there a way to programmatically get list of valid values/datatypes for Simulink block parameter?

Question

Sohil Shrestha 2021-10-13

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1562851-is-there-a-way-to-programmatically-get-list-of-valid-values-datatypes-for-simulink-block-parameter

编辑： Paul 2021-10-13

Simulink Block Specific parameters documentation lists the values and/or datatype each parameter of the block accept. Is there an api or function that allows us to get this information programmatically?

For example, Delay dialog box parameters 'ShowEnablePort' which can only be set to 'on' or 'off'.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Paul 2021-10-13

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1562851-is-there-a-way-to-programmatically-get-list-of-valid-values-datatypes-for-simulink-block-parameter#answer_807946

编辑：Paul 2021-10-13

在 MATLAB Online 中打开

I'm not sure that this can be done in general. But for dialog parameters that areof type 'enum', the options can be obtained by:

>> d=get_param(gcb,'DialogParameters')
d = 
  struct with fields:
                        DelayLengthSource: [1×1 struct]
                              DelayLength: [1×1 struct]
                    DelayLengthUpperLimit: [1×1 struct]
                   InitialConditionSource: [1×1 struct]
                         InitialCondition: [1×1 struct]
                            ExternalReset: [1×1 struct]
                           ShowEnablePort: [1×1 struct]
                 PreventDirectFeedthrough: [1×1 struct]
                 DiagnosticForDelayLength: [1×1 struct]
    RemoveDelayLengthCheckInGeneratedCode: [1×1 struct]
                          InputProcessing: [1×1 struct]
                        UseCircularBuffer: [1×1 struct]
                               SampleTime: [1×1 struct]
                                StateName: [1×1 struct]
           StateMustResolveToSignalObject: [1×1 struct]
                        StateSignalObject: [1×1 struct]
                        StateStorageClass: [1×1 struct]
         CodeGenStateStorageTypeQualifier: [1×1 struct]
>> d.DelayLengthSource
ans = 
  struct with fields:
        Prompt: 'Delay length source:'
          Type: 'enum'
          Enum: {'Dialog'  'Input port'}
    Attributes: {'read-write'  'read-only-if-compiled'  'dont-eval'  'link-instance'}
>> d.DelayLengthSource.Enum
ans =
  1×2 cell array
    {'Dialog'}    {'Input port'}

For parameters of type 'boolean', I'll just conjecture that the choices are either 'on' or 'off'.

For parameters of type 'string' I don't know what to say:

>> d.DelayLength
ans = 
  struct with fields:
        Prompt: 'Delay length:'
          Type: 'string'
          Enum: {}
    Attributes: {'read-write'  'read-only-if-compiled'  'link-instance'}