Method GDALRasterCalcAlgorithm

apps/gdalalg_raster_calc.cpp:882–954

/************************************************************************/

GDALRasterCalcAlgorithm::GDALRasterCalcAlgorithm(bool standaloneStep) noexcept
    : GDALRasterPipelineStepAlgorithm(NAME, DESCRIPTION, HELP_URL,
                                      ConstructorOptions()
                                          .SetStandaloneStep(standaloneStep)
                                          .SetAddDefaultArguments(false)
                                          .SetAutoOpenInputDatasets(false)
                                          .SetInputDatasetInputFlags(GADV_NAME)
                                          .SetInputDatasetMetaVar("INPUTS")
                                          .SetInputDatasetMaxCount(INT_MAX))
{
    AddRasterInputArgs(false, false);
    if (standaloneStep)
    {
        AddProgressArg();
        AddRasterOutputArgs(false);
    }

    AddOutputDataTypeArg(&m_type);

    AddArg("no-check-crs", 0,
           _("Do not check consistency of input coordinate reference systems"),
           &m_noCheckCRS)
        .AddHiddenAlias("no-check-srs");
    AddArg("no-check-extent", 0, _("Do not check consistency of input extents"),
           &m_noCheckExtent);

    AddArg("propagate-nodata", 0,
           _("Whether to set pixels to the output NoData value if any of the "
             "input pixels is NoData"),
           &m_propagateNoData);

    AddArg("calc", 0, _("Expression(s) to evaluate"), &m_expr)
        .SetRequired()
        .SetPackedValuesAllowed(false)
        .SetMinCount(1)
        .SetAutoCompleteFunction(
            [this](const std::string &currentValue)
            {
                std::vector<std::string> ret;
                if (m_dialect == "builtin")
                {
                    if (currentValue.find('(') == std::string::npos)
                        return VRTDerivedRasterBand::GetPixelFunctionNames();
                }
                return ret;
            });

    AddArg("dialect", 0, _("Expression dialect"), &m_dialect)
        .SetDefault(m_dialect)
        .SetChoices("muparser", "builtin");

    AddArg("flatten", 0,
           _("Generate a single band output raster per expression, even if "
             "input datasets are multiband"),
           &m_flatten);

    AddNodataArg(&m_nodata, true);