I’ve been working to intergrate a print function for my desktop app program where the users can print a document with the generated graphs added on it. Before I do that, I need to find a way to save the graphs as images. After many attempts, I only managed to print out images of the graphs before the data was to be added, even though I saved these images right after adding the values from a CSV file into the graph. However, I’m having some kind of issue of converting the graphs into images. Here’s what the graph should look like:
The graph before image convertion
When I save the grap as an image, however, the values (the colored bars) are not present. How can I fix this?

I’m using PyQt for my program. Here’swhat I used to create the graph as well as saving and displaying the graph as an image:
`def create_temp_chart(self):
if not self.fileName:
return
low = QtChart.QBarSet(“min”)
high = QtChart.QBarSet(“max”)
ltemp = []
htemp = []

    with open(self.fileName) as csvfile:
        csvreader = csv.reader(csvfile, delimiter=',')
        header_found = False
        for row in csvreader:
            if row[0] == "MinTemp":
                header_found = True
                continue
            if header_found:
                ltemp.append(float(row[0]))
                htemp.append(float(row[1]))
            if len(ltemp) >= 12:
                break  # Assuming only the first 12 months of data are needed

    low.append(ltemp)
    high.append(htemp)

    series = QtChart.QStackedBarSeries()
    series.append(low)
    series.append(high)

    chart = QtChart.QChart()
    chart.addSeries(series)
    chart.setTitle("Muestra de Temperatura en Celsius")
    chart.setAnimationOptions(QtChart.QChart.AnimationOption.SeriesAnimations)

    category = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]

    axisX = QtChart.QBarCategoryAxis()
    axisX.append(category)
    axisX.setTitleText("Mes")
    chart.addAxis(axisX, Qt.AlignmentFlag.AlignBottom)
    axisY = QtChart.QValueAxis()
    axisY.setRange(-52, 52)
    axisY.setTitleText("Temperatura en Celsius")
    chart.addAxis(axisY, Qt.AlignmentFlag.AlignLeft)
    series.attachAxis(axisX)
    series.attachAxis(axisY)

    self.ui.chart_view_temp = QtChart.QChartView(chart)
    self.ui.chart_view_temp.setRenderHint(QPainter.RenderHint.Antialiasing)
    self.ui.chart_view_temp.chart().setTheme(QtChart.QChart.ChartTheme.ChartThemeDark)
    sizePolicy = QSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Expanding)
    sizePolicy.setHeightForWidth(self.ui.chart_view_temp.sizePolicy().hasHeightForWidth())
    self.ui.chart_view_temp.setSizePolicy(sizePolicy)

    self.ui.gridLayout_2.addWidget(self.ui.chart_view_temp)
    self.ui.frame_18.setStyleSheet(u"background-color: transparent")

    # Save chart as image
    self.save_chart_as_image(self.ui.chart_view_temp, "temp_chart.png")

 def save_chart_as_image(self, chart_view, file_name):
    QApplication.processEvents() 

    image = QImage(chart_view.size(), QImage.Format.Format_ARGB32)
    painter = QPainter(image)
    chart_view.render(painter)
    painter.end()
    image.save(file_name)

    # Display the image after saving
    self.display_image(file_name)

def display_image(self, file_path):
    dialog = QDialog(self)
    dialog.setWindowTitle("Chart Image")
    layout = QVBoxLayout()
    label = QLabel()
    pixmap = QPixmap(file_path)
    label.setPixmap(pixmap)
    layout.addWidget(label)
    dialog.setLayout(layout)
    dialog.exec_()

`
I’m not sure if I’m missing something here or if it’s the way I’m designing the graphs.