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Manual Scilab >> API Scilab > List manipulation > Double writing (Scilab gateway)

Double writing (Scilab gateway)

How to add matrix of double in a list.

Create from existing data.

Calling Sequence

Input argument profile:

SciErr createMatrixOfBooleanInList(void* _pvCtx, int _iVar, int* _piParent, int _iItemPos, int _iRows, int _iCols, const int* _piBool)

Named variable profile:

SciErr createMatrixOfBooleanInNamedList(void* _pvCtx, const char* _pstName, int* _piParent, int _iItemPos, int _iRows, int _iCols, const int* _piBool)

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.
_piParent: Address of the parent of the new item.
_iItemPos: Position of the new item in the list.
_iRows: Number of rows of the new variable.
_iCols: Number of columns of the new variable.
_pdblReal: Address of real data array (size: _iCols * _iRows).
_pdblImg: Address of imaginary data array (size: _iCols * _iRows).
SciErr: Error structure where is stored errors messages history and first error number.

Write directly in Scilab memory.

Calling Sequence

Input argument profile:

SciErr allocMatrixOfDoubleInList(void* _pvCtx, int _iVar, int* _piParent, int _iItemPos, int _iRows, int _iCols, double** _pdblReal)

SciErr allocComplexMatrixOfDoubleInList(void* _pvCtx, int _iVar, int* _piParent, int _iItemPos, int _iRows, int _iCols, double** _pdblReal, double** _pdblImg)

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.
_piParent: Address of the parent of the new item.
_iItemPos: Position of the new item in the list.
_iRows: Number of rows of the new variable.
_iCols: Number of columns of the new variable.
_pdblReal: Return address of real data array (size: _iCols * _iRows).
_pdblImg: Return address of imaginary data array (size: _iCols * _iRows).
SciErr: Error structure where is stored errors messages history and first error number.

Description

This help describes how to add matrix of double in a list.

Two types of functions can be used to write in the memory of Scilab.

Gateway Source

int list_createlist(char *fname,unsigned long fname_len)
{
    SciErr sciErr;
    int *piAddr             = NULL;
    int* piChild            = NULL;
    double pdblData1[]      = {1,3,5,2,4,6};
    double pdblData2[]      = {6,4,2,5,3,1};
    char *pstData[]         = {"may","be","the","with","puffin","you"};
    short psData[]          = {1,4,2,5,3,6};
    double pdblPoly1[]      = {1};
    double pdblPoly2[]      = {-2,-1};
    double pdblPoly3[]      = {1,2,3};
    double pdblPoly4[]      = {-4,-3,-2,-1};
    double pdblPoly5[]      = {1,2,3,4,5};
    double pdblPoly6[]      = {-6,-5,-4,-3,-2,-1};
    double *pdblPoly[]      = {pdblPoly1, pdblPoly3, pdblPoly5, pdblPoly2, pdblPoly4, pdblPoly6};
    int piCoef[]            = {1,3,5,2,4,6};
    int piNbItemRow[]       = {1,2,1};
    int piColPos[]          = {8,4,7,2};
    double pdblSReal[]      = {1,2,3,4};
    double pdblSImg[]       = {4,3,2,1};
    int piBool[]            = {1,0,1,0,1,0,1,0,1};
    double* pdblDataPtr     = NULL;

    sciErr = createList(pvApiCtx, Rhs + 1, 8, &piAddr);
    if(sciErr.iErr)
    {
        printError(&sciErr, 0);
        return 0;
    }

    sciErr = createComplexMatrixOfDoubleInList(pvApiCtx, Rhs + 1, piAddr, 1, 3, 2, pdblData1, pdblData2);
    if(sciErr.iErr)
    {
        printError(&sciErr, 0);
        return 0;
    }

    sciErr = createMatrixOfStringInList(pvApiCtx, Rhs + 1, piAddr, 2, 2, 3, pstData);
    if(sciErr.iErr)
    {
        printError(&sciErr, 0);
        return 0;
    }

    sciErr = createMatrixOfInteger16InList(pvApiCtx, Rhs + 1, piAddr, 3, 2, 3, psData);
    if(sciErr.iErr)
    {
        printError(&sciErr, 0);
        return 0;
    }

    sciErr = createMatrixOfPolyInList(pvApiCtx, Rhs + 1, piAddr, 4, "x", 3, 2, piCoef, pdblPoly);
    if(sciErr.iErr)
    {
        printError(&sciErr, 0);
        return 0;
    }

    sciErr = createComplexSparseMatrixInList(pvApiCtx, Rhs + 1, piAddr, 5, 3, 10, 4, piNbItemRow, piColPos, pdblSReal, pdblSImg);
    if(sciErr.iErr)
    {
        printError(&sciErr, 0);
        return 0;
    }

    sciErr = createMatrixOfBooleanInList(pvApiCtx, Rhs + 1, piAddr, 6, 3, 3, piBool);
    if(sciErr.iErr)
    {
        printError(&sciErr, 0);
        return 0;
    }

    sciErr = createBooleanSparseMatrixInList(pvApiCtx, Rhs + 1, piAddr, 7, 3, 10, 4, piNbItemRow, piColPos);
    if(sciErr.iErr)
    {
        printError(&sciErr, 0);
        return 0;
    }

    //add list in list
    sciErr = createListInList(pvApiCtx, Rhs + 1, piAddr, 8, 3, &piChild);
    if(sciErr.iErr)
    {
        printError(&sciErr, 0);
        return 0;
    }

    sciErr = createMatrixOfDoubleInList(pvApiCtx, Rhs + 1, piChild, 1, 3, 2, pdblData1);
    if(sciErr.iErr)
    {
        printError(&sciErr, 0);
        return 0;
    }

    sciErr = createSparseMatrixInList(pvApiCtx, Rhs + 1, piChild, 2, 3, 10, 4, piNbItemRow, piColPos, pdblSReal);
    if(sciErr.iErr)
    {
        printError(&sciErr, 0);
        return 0;
    }

    pdblDataPtr     = (double*)malloc(sizeof(double) * 4);
    pdblDataPtr[0]  = 1;
    pdblDataPtr[1]  = 2;
    pdblDataPtr[2]  = 3;
    pdblDataPtr[3]  = 4;

    sciErr = createPointerInList(pvApiCtx, Rhs + 1, piChild, 3, pdblDataPtr);
    if(sciErr.iErr)
    {
        printError(&sciErr, 0);
        return 0;
    }

    LhsVar(1) = Rhs + 1;
    return 0;
}

Scilab test script

size_ref    = 8;
type_ref    = ["constant","string","int16","polynomial", "sparse", "boolean", "boolean sparse", "list"];
dim_ref     = list([3,2],[2,3],[2,3],[3,2],[3,10],[3,3],[3,10],3);

l = list_createlist();
if size(l) <> size_ref then error("failed"), end
for i = 1 : size_ref
    if typeof(l(i)) <> type_ref(i) then error("failed"), end
    if size(l(i)) <> dim_ref(i) then error("failed"), end
end

<< Double reading (Scilab gateway)

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Last updated:
Wed Jan 26 16:24:43 CET 2011