Adding Error Bars for Charts in Ruby

Aspose.Slides - Adding Fixed Error Bar Value for Chart

To Add Fixed Error Bar Value for Chart using Aspose.Slides Java for Ruby, call add_fixed_error_bar_value method of ErrorBars module. Here you can see example code.

Ruby Code

 def add_fixed_error_bar_value()

    data_dir = File.dirname(File.dirname(File.dirname(File.dirname(__FILE__)))) + '/data/'



    # Instantiate Presentation class that represents the presentation file

    pres = Rjb::import('com.aspose.slides.Presentation').new

    # Creating a bubble chart

    chart = pres.getSlides().get_Item(0).getShapes().addChart(Rjb::import('com.aspose.slides.ChartType').Bubble, 50, 50, 400, 300, true)

    # Adding Error bars and setting its format

    error_bar_x = chart.getChartData().getSeries().get_Item(0).getErrorBarsXFormat()

    error_bar_y = chart.getChartData().getSeries().get_Item(0).getErrorBarsYFormat()

    #error_bar_x.isVisible(true)

    #error_bar_y.isVisible(true)

    error_bar_x.setValueType(Rjb::import('com.aspose.slides.ErrorBarValueType').Fixed)

    error_bar_x.setValue(0.1)

    error_bar_y.setValueType(Rjb::import('com.aspose.slides.ErrorBarValueType').Percentage)

    error_bar_y.setValue(5)

    error_bar_x.setType(Rjb::import('com.aspose.slides.ErrorBarType').Plus)

    error_bar_y.getFormat().getLine().setWidth(2.0)

    #error_bar_x.hasEndCap(true)

    # Save presentation with chart

    pres.save(data_dir + "ErrorBar.pptx", Rjb::import('com.aspose.slides.SaveFormat').Pptx)

    puts "Added fixed error bar value for chart, please check the output file."

end   

Aspose.Slides - Adding Custom Error Bar Value for Chart

To Add Custom Error Bar Value for Chart for Chart using Aspose.Slides Java for Ruby, call add_custom_error_bar_value method of ErrorBars module. Here you can see example code.

Ruby Code

 def add_custom_error_bar_value()

    data_dir = File.dirname(File.dirname(File.dirname(File.dirname(__FILE__)))) + '/data/'



    # Instantiate Presentation class that represents the presentation file

    pres = Rjb::import('com.aspose.slides.Presentation').new

    slide = pres.getSlides().get_Item(0)

    # Creating a bubble chart

    chart = pres.getSlides().get_Item(0).getShapes().addChart(Rjb::import('com.aspose.slides.ChartType').Bubble, 50, 50, 400, 300, true)

    # Adding custom Error bars and setting its format

    error_bar_value_type = Rjb::import('com.aspose.slides.ErrorBarValueType')

    series = chart.getChartData().getSeries().get_Item(0)

    error_bar_x = series.getErrorBarsXFormat()

    error_bar_y = series.getErrorBarsYFormat()

    #error_bar_x.isVisible(true)

    #error_bar_y.isVisible(true)

    error_bar_x.setValueType(error_bar_value_type.Custom)

    error_bar_y.setValueType(error_bar_value_type.Custom)



    #Accessing chart series data point and setting error bars values for individual point

    data_source_type = Rjb::import('com.aspose.slides.DataSourceType')

    points = series.getDataPoints()

    points.getDataSourceTypeForErrorBarsCustomValues().setDataSourceTypeForXPlusValues(data_source_type.DoubleLiterals)

    points.getDataSourceTypeForErrorBarsCustomValues().setDataSourceTypeForXMinusValues(data_source_type.DoubleLiterals)

    points.getDataSourceTypeForErrorBarsCustomValues().setDataSourceTypeForYPlusValues(data_source_type.DoubleLiterals)

    points.getDataSourceTypeForErrorBarsCustomValues().setDataSourceTypeForYMinusValues(data_source_type.DoubleLiterals)



    # Setting error bars for chart series points

    i = 0

    while i < points.size()

        points.get_Item(i).getErrorBarsCustomValues().getXMinus().setAsLiteralDouble(i + 1)

        points.get_Item(i).getErrorBarsCustomValues().getXPlus().setAsLiteralDouble(i + 1)

        points.get_Item(i).getErrorBarsCustomValues().getYMinus().setAsLiteralDouble(i + 1)

        points.get_Item(i).getErrorBarsCustomValues().getYPlus().setAsLiteralDouble(i + 1)

        i +=1

    end

    pres.save(data_dir + "ErrorBarsCustomValues.pptx", Rjb::import('com.aspose.slides.SaveFormat').Pptx)

    puts "Added custom error bars values for chart, please check the output file."

end

Download Running Code

Download Adding Error Bars for Charts (Aspose.Slides) from any of the below mentioned social coding sites:

• GitHub