- Aide de Scilab
- API Scilab
- Low level functions
- AssignOutputVariable
- CallOverloadFunction
- CheckInputArgument
- CheckOutputArgument
- ReturnArguments
- Boolean reading (Scilab gateway)
- Boolean writing (Scilab gateway)
- Boolean sparse reading (Scilab gateway)
- Boolean sparse writing (Scilab gateway)
- Check variable dimensions (Scilab gateway)
- Variable Reference (Scilab gateway)
- Variable dimension (Scilab gateway)
- Variable Type (Scilab gateway)
- Variable Complexity (Scilab gateway)
- Matrix Type (Scilab gateway)
- deleteNamedVariable
- Double reading (Scilab gateway)
- Double writing (Scilab gateway)
- getNbInputArgument (Scilab gateway)
- getNbOutputArgument (Scilab gateway)
- Handle reading (Scilab gateway)
- Handle writing (Scilab gateway)
- Integer Precision (Scilab gateway)
- Integer reading (Scilab gateway)
- Integer writing (Scilab gateway)
- nbInputArgument (Scilab gateway)
- Pointer reading (Scilab gateway)
- Pointer writing (Scilab gateway)
- Polynomial Symbolic Variable (Scilab gateway)
- Polynomial reading (Scilab gateway)
- Polynomial writing (Scilab gateway)
- Sparse matrix reading (Scilab gateway)
- Sparse writing (Scilab gateway)
- String reading (Scilab gateway)
- String writing (Scilab gateway)
Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
However, this page did not exist in the previous stable version.
Boolean sparse writing (Scilab gateway)
How to add boolean sparse matrix in a gateway.
Calling Sequence
Input argument profile:
SciErr createBooleanSparseMatrix(void* _pvCtx, int _iVar, int _iRows, int _iCols, int _iNbItem, const int* _piNbItemRow, const int* _piColPos)
Named variable profile:
SciErr createNamedBooleanSparseMatrix(void* _pvCtx, const char* _pstName, int _iRows, int _iCols, int _iNbItem, const int* _piNbItemRow, const int* _piColPos)
Arguments
- _pvCtx
Scilab environment pointer, pass in "pvApiCtx" provided by api_scilab.h.
- _iVar
Position in the Scilab memory where you want to put the variable.
- _pstName
Name of the variable for "named" functions.
- _iRows
Number of rows of the new variable.
- _iCols
Number of columns of the new variable.
- _iNbItem
Number of non zero itmes in the sparse.
- _piNbItemRow
Number of item in each rows (size: _iRows).
- _piColPos
Column position for each item (size: _iNbItem).
- SciErr
Error structure where is stored errors messages history and first error number.
Calling Sequence
Input argument profile:
SciErr allocBooleanSparseMatrix(void* _pvCtx, int _iVar, int _iRows, int _iCols, int _iNbItem, int** _piNbItemRow, int** _piColPos)
Arguments
- _pvCtx
Scilab environment pointer, pass in "pvApiCtx" provided by api_scilab.h.
- _iVar
Position in the Scilab memory where you want to put the variable.
- _iRows
Number of rows of the new variable.
- _iCols
Number of columns of the new variable.
- _iNbItem
Number of non zero itmes in the sparse.
- _piNbItemRow
Number of item in each rows (size: _iRows).
- _piColPos
Column position for each item (size: _iNbItem).
- SciErr
Error structure where is stored errors messages history and first error number.
Description
This help describes how to add boolean sparse matrix in a list.
Gateway Source
#include "api_scilab.h" int read_write_bsparse(char *fname,unsigned long fname_len) { SciErr sciErr; int i = 0; int j = 0; int k = 0; //first variable info : real matrix of double int iRows = 0; int iCols = 0; int *piAddr = NULL; int iNbItem = 0; int* piNbItemRow = NULL; int* piColPos = NULL; int iCol = 0; int iNewCol = 0; int iNewItem = 0; int* piNewRow = NULL; int* piNewCol = NULL; //check input and output arguments CheckInputArgument(pvApiCtx, 1, 1); CheckOutputArgument(pvApiCtx, 1, 1); //get variable address of the first input argument sciErr = getVarAddressFromPosition(pvApiCtx, 1, &piAddr); if(sciErr.iErr) { printError(&sciErr, 0); return 0; } //get size and data from Scilab memory sciErr = getBooleanSparseMatrix(pvApiCtx, piAddr, &iRows, &iCols, &iNbItem, &piNbItemRow, &piColPos); if(sciErr.iErr) { printError(&sciErr, 0); return 0; } //Do something with data //convert %T -> %F and %F -> %T iNewItem = (iRows * iCols) - iNbItem; piNewRow = (int*)MALLOC(sizeof(int) * iRows); piNewCol = (int*)MALLOC(sizeof(int) * iNewItem); for(i = 0 ; i < iRows ; i++) { piNewRow[i] = iCols - piNbItemRow[i]; for(j = 0 ; j < iCols ; j++) { int iFind = 0; for(k = 0 ; k < piNbItemRow[i] ; k++) { if(piColPos[iCol + k] == (j + 1)) { iFind = 1; break; } } if(iFind == 0) { piNewCol[iNewCol++] = (j + 1); } } iCol += piNbItemRow[i]; } sciErr = createBooleanSparseMatrix(pvApiCtx, nbInputArgument(pvApiCtx) + 1, iRows, iCols, iNewItem, piNewRow, piNewCol); if(sciErr.iErr) { printError(&sciErr, 0); return 0; } AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1; return 0; }
Scilab test script
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