Chart Data Marker

Set Chart Marker Options

The markers can be set on chart data points inside particular series. In order to set chart marker options. Please follow the steps below:

• Instantiate Presentation class.
• Creating the default chart.
• Set the picture.
• Take first chart series.
• Add new data point.
• Write presentation to disk.

In the example given below, we have set the chart marker options on data points level.

  # Creating empty presentation
  $pres = new Presentation();
  try {
    # Access first slide
    $slide = $pres->getSlides()->get_Item(0);
    # Creating the default chart
    $chart = $slide->getShapes()->addChart(ChartType::LineWithMarkers, 0, 0, 400, 400);
    # Getting the default chart data WorkSheet index
    $defaultWorksheetIndex = 0;
    # Getting the chart data WorkSheet
    $fact = $chart->getChartData()->getChartDataWorkbook();
    # Delete demo series
    $chart->getChartData()->getSeries()->clear();
    # Add new series
    $chart->getChartData()->getSeries()->add($fact->getCell($defaultWorksheetIndex, 1, 1, "Series 1"), $chart->getType());
    # Load the picture 1
    $imgx1 = $pres->getImages()->addImage(new Java("java.io.FileInputStream", new Java("java.io.File", "Desert.jpg")));
    # Load the picture 2
    $imgx2 = $pres->getImages()->addImage(new Java("java.io.FileInputStream", new Java("java.io.File", "Tulips.jpg")));
    # Take first chart series
    $series = $chart->getChartData()->getSeries()->get_Item(0);
    # Add new point (1:3) there.
    $point = $series->getDataPoints()->addDataPointForLineSeries($fact->getCell($defaultWorksheetIndex, 1, 1, 4.5));
    $point->getMarker()->getFormat()->getFill()->setFillType(FillType::Picture);
    $point->getMarker()->getFormat()->getFill()->getPictureFillFormat()->getPicture()->setImage($imgx1);
    $point = $series->getDataPoints()->addDataPointForLineSeries($fact->getCell($defaultWorksheetIndex, 2, 1, 2.5));
    $point->getMarker()->getFormat()->getFill()->setFillType(FillType::Picture);
    $point->getMarker()->getFormat()->getFill()->getPictureFillFormat()->getPicture()->setImage($imgx2);
    $point = $series->getDataPoints()->addDataPointForLineSeries($fact->getCell($defaultWorksheetIndex, 3, 1, 3.5));
    $point->getMarker()->getFormat()->getFill()->setFillType(FillType::Picture);
    $point->getMarker()->getFormat()->getFill()->getPictureFillFormat()->getPicture()->setImage($imgx1);
    $point = $series->getDataPoints()->addDataPointForLineSeries($fact->getCell($defaultWorksheetIndex, 4, 1, 4.5));
    $point->getMarker()->getFormat()->getFill()->setFillType(FillType::Picture);
    $point->getMarker()->getFormat()->getFill()->getPictureFillFormat()->getPicture()->setImage($imgx2);
    # Changing the chart series marker
    $series->getMarker()->setSize(15);
    # Save presentation with chart
    $pres->save("ScatterChart.pptx", SaveFormat::Pptx);
  } catch (JavaException $e) {
  } finally {
    if (!java_is_null($pres)) {
      $pres->dispose();
    }
  }