Syntax

real_T *ssGetContStates(SimStruct *S)

Arguments

Returns

A pointer (real_T *) to the continuous state vector as an array of lengthssGetNumContStates(S). ReturnsNULLif the S-function does not have any continuous states.

Description

Use in the simulation loop,mdlInitializeConditions, ormdlStartroutines to get thereal_Tcontinuous state vector for the S-function. This vector has lengthssGetNumContStates(S). Typically, this vector is initialized inmdlInitializeConditionsand used inmdlOutputs.

并出口ages

C, C++

Example

The following lines from the filecsfunc.cshow how to initialize the continuous states inmdlInitializeConditionsand calculate the state derivatives inmdlDerivatives. This S-function is used in the modelsfcndemo_csfunc.

static void mdlInitializeConditions(SimStruct *S) { real_T *x0 = ssGetContStates(S); int_T lp; for (lp=0;lp<2;lp++) { *x0++=0.0; } } static void mdlDerivatives(SimStruct *S) { real_T *dx = ssGetdX(S); real_T *x = ssGetContStates(S); InputRealPtrsType uPtrs = ssGetInputPortRealSignalPtrs(S,0); /* xdot = Ax + Bu */ dx[0]=A[0][0]*x[0]+A[1][1]*x[1]+B[0][0]*U(0)+B[0][1]*U(1); dx[1]=A[1][0]*x[0]+A[1][1]*x[1]+B[1][0]*U(0)+B[1][1]*U(1); }

See Also

ssGetNumContStates,ssGetRealDiscStates,ssGetdX,mdlInitializeConditions,mdlStart