Set the dimensions of the signals accepted by an input port - MATLAB mdlSetInputPortDimensionInfo - MathWorks 日本

Required

No

语言

C, C++

Syntax

#define MDL_SET_INPUT_PORT_DIMENSION_INFOvoid mdlSetInputPortDimensionInfo(SimStruct *S, int_T port, const DimsInfo_T *dimsInfo)

Arguments

S: SimStruct representing an S-Function block.
port: Index of a port.
dimsInfo: Structure that specifies the signal dimensions supported by the port.

SeessSetInputPortDimensionInfofor a description of this structure.

Description

The Simulink^®engine calls this method during dimension propagation with candidate dimensionsdimsInfoforport．In C MEX S-functions, if the proposed dimensions are acceptable, the method sets the actual port dimensions, usingssSetInputPortDimensionInfo．If they are unacceptable, the method generates an error viassSetErrorStatus．

This method is only valid for simulation. A C MEX S-function must enclose the method in a#if defined(MATLAB_MEX_FILE)statement.

Note

This method can set the dimensions of any other input or output port whose dimensions derive from the dimensions ofport．

By default, the engine calls this method only if it can fully determine the dimensionality ofportfrom the port to which it is connected. For C MEX S-functions, if the engine cannot completely determine the dimensionality from port connectivity, it invokesmdlSetDefaultPortDimensionInfo．If an S-function can fully determine the port dimensionality from partial information, set the optionSS_OPTION_ALLOW_PARTIAL_DIMENSIONS_CALLinmdlInitializeSizes, usingssSetOptions．If this option is set, the engine invokesmdlSetInputPortDimensionInfoeven if it can only partially determine the dimensionality of the input port from connectivity.

The engine calls this method until all input ports with inherited dimensions have their dimensions specified.