qml tickmark values of custom Gauge

[halima]

I'am trying to use this code to display a custom Gauge but the tickmak values does not shown correctly!
Thanks in advance
main.qml

import QtQuick 2.4
import QtQuick.Extras 1.4
import QtQuick.Layouts 1.0
import QtQuick.Controls 1.4
import QtQuick.Controls.Styles 1.4

Rectangle {
    width: 50
    height: 300
    color: "transparent"
    property alias gauge: gauge_act_1
    Gauge {
        id: gauge_act_1
        minorTickmarkCount: 2
        font.pixelSize: 9
        anchors.centerIn: parent
        anchors.leftMargin: 2
        anchors.rightMargin: 2

        style: GaugeStyle {

            valueBar: Rectangle {
                color: "#FF003399"
                implicitWidth: 15
            }
        }
        objectName: "gauge_act_1"
    }
}

mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"


MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    QQuickView *view = new QQuickView;
    view->setSource(QUrl("qrc:/main.qml"));
    view->setColor(QColor(Qt::white));
    view->setResizeMode(QQuickView::SizeRootObjectToView);
    QWidget *container = QWidget::createWindowContainer(view);
    container->setFocusPolicy(Qt::TabFocus);
    container->setMinimumSize(QSize(400,330));
    container->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Expanding);

    ui->horizontalLayout->addWidget(container);

    QObject *object = view->rootObject();
    QObject* item_1 = object->findChild<QObject *>("gauge_act_1");
    if(item_1)
        gauge_1 = item_1;



    QTimer *G_s_qt_controllerTimer = new QTimer;
    QObject::connect(G_s_qt_controllerTimer, SIGNAL( timeout()),this, SLOT(update()));
    G_s_qt_controllerTimer->start(100);
}

void MainWindow::update(){

    gauge_1->setProperty("maximumValue", 481.9);
    gauge_1->setProperty("minimumValue", 357.1);
    gauge_1->setProperty("value", 410.84);

}
MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::changeEvent(QEvent *e)
{
    QMainWindow::changeEvent(e);
    switch (e->type()) {
    case QEvent::LanguageChange:
        ui->retranslateUi(this);
        break;
    default:
        break;
    }
}

[DavidM29]

How about that ?

    Rectangle {
        width: 50
        height: 300
        anchors.centerIn: parent
        color: "transparent"
        property alias gauge: gauge_act_1
        Gauge {
            id: gauge_act_1
            minorTickmarkCount: 2
            font.pixelSize: 9
            anchors.centerIn: parent
            anchors.leftMargin: 2
            anchors.rightMargin: 2
            maximumValue : 481.9
            minimumValue: 357.1
            formatValue: function(value) {
                return value.toFixed(1);
            }
            value : 381.2

            style: GaugeStyle {

                valueBar: Rectangle {
                    color: "#FF003399"
                    implicitWidth: 15
                }
            }
            objectName: "gauge_act_1"
        }
    }

The important part here is this which format your label with 1 decimal :

  formatValue: function(value) {
                return value.toFixed(1);
            }

Here the related doc : formatValue

[halima]

Thank you very much for your help, that works perfectly!!