_rti_iterator_arg_empty_init()

static int _rti_iterator_arg_empty_init ( _rti_iterator_arg  _param )

static

Definition at line 670 of file rt_mapalgebra.c.

                                                       {
        uint32_t x = 0;
        uint32_t y = 0;
 
        _param->empty.values = rtalloc(sizeof(double *) * _param->dimension.rows);
        _param->empty.nodata = rtalloc(sizeof(int *) * _param->dimension.rows);
        if (_param->empty.values == NULL || _param->empty.nodata == NULL) {
                rterror("_rti_iterator_arg_empty_init: Could not allocate memory for empty values and NODATA");
                return 0;
        }
 
        for (y = 0; y < _param->dimension.rows; y++) {
                _param->empty.values[y] = rtalloc(sizeof(double) * _param->dimension.columns);
                _param->empty.nodata[y] = rtalloc(sizeof(int) * _param->dimension.columns);
 
                if (_param->empty.values[y] == NULL || _param->empty.nodata[y] == NULL) {
                        rterror("_rti_iterator_arg_empty_init: Could not allocate memory for elements of empty values and NODATA");
                        return 0;
                }
 
                for (x = 0; x < _param->dimension.columns; x++) {
                        _param->empty.values[y][x] = 0;
                        _param->empty.nodata[y][x] = 1;
                }
        }
 
        return 1;
}

References _rti_iterator_arg_t::columns, _rti_iterator_arg_t::dimension, _rti_iterator_arg_t::empty, _rti_iterator_arg_t::nodata, _rti_iterator_arg_t::rows, rtalloc(), rterror(), _rti_iterator_arg_t::values, pixval::x, and pixval::y.

Referenced by rt_raster_iterator().

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