Method GetPosition

core/graphics/XChart.cpp:640–664

}

const util::Point XChart::GetPosition(const nlohmann::json &item) {
    if(!canvasContext_ || !canvasContext_->IsValid() || scaleController_->Empty() || !item.is_object() || item.size() < 2) {
        return util::Point{0, 0};
    }

    std::string xField = this->GetXScaleField();
    std::vector<std::string> yFields = this->getYScaleFields();
    std::string yField;
    for(std::size_t index = 0; index < yFields.size(); ++index) {
        const std::string &yFieldValue = yFields[index];
        if (item.contains(yFieldValue)) {
            yField = yFieldValue;
            break;
        }
    }

    if(!item.contains(xField) || yField.empty() || !item.contains(yField)) {
        return util::Point{0, 0};
    }

    double x = this->GetScale(xField).Scale(item[xField]);
    double y = this->GetScale(yField).Scale(item[yField]);
    util::Point ret = this->GetCoord().ConvertPoint(util::Point{x, y});
    return ret;
}

const nlohmann::json XChart::GetSelectedRecordsForGeom(const size_t index) {
    if(!canvasContext_ || !canvasContext_->IsValid() || scaleController_->Empty()) {