Adding Chart Trend Lines in Ruby

Aspose.Slides - Adding Chart Trend Lines

To Add Chart Trend Lines using Aspose.Slides Java for Ruby, simply invoke ChartTrendLines module. Here you can see example code.

Ruby Code

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



\# Creating empty presentation

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

\# Creating a clustered column chart

chart = pres.getSlides().get_Item(0).getShapes().addChart(Rjb::import('com.aspose.slides.ChartType').ClusteredColumn, 20, 20, 500, 400)

\# Adding ponential trend line for chart series 1

tredLinep = chart.getChartData().getSeries().get_Item(0).getTrendLines().add(Rjb::import('com.aspose.slides.TrendlineType').Exponential)

tredLinep.setDisplayEquation(false)

tredLinep.setDisplayRSquaredValue(false)

\# Adding Linear trend line for chart series 1

tredLineLin = chart.getChartData().getSeries().get_Item(0).getTrendLines().add(Rjb::import('com.aspose.slides.TrendlineType').Linear)

tredLineLin.setTrendlineType(Rjb::import('com.aspose.slides.TrendlineType').Linear)

tredLineLin.getFormat().getLine().getFillFormat().setFillType(Rjb::import('com.aspose.slides.FillType').Solid)

tredLineLin.getFormat().getLine().getFillFormat().getSolidFillColor().setColor(Rjb::import('java.awt.Color').RED)


\# Adding Logarithmic trend line for chart series 2

tredLineLog = chart.getChartData().getSeries().get_Item(1).getTrendLines().add(Rjb::import('com.aspose.slides.TrendlineType').Logarithmic)

tredLineLog.setTrendlineType(Rjb::import('com.aspose.slides.TrendlineType').Logarithmic)

tredLineLog.addTextFrameForOverriding("New log trend line")

\# Adding MovingAverage trend line for chart series 2

tredLineMovAvg = chart.getChartData().getSeries().get_Item(1).getTrendLines().add(Rjb::import('com.aspose.slides.TrendlineType').MovingAverage)

tredLineMovAvg.setTrendlineType(Rjb::import('com.aspose.slides.TrendlineType').MovingAverage)

tredLineMovAvg.setPeriod(3)

tredLineMovAvg.setTrendlineName("New TrendLine Name")

\# Adding Polynomial trend line for chart series 3

tredLinePol = chart.getChartData().getSeries().get_Item(2).getTrendLines().add(Rjb::import('com.aspose.slides.TrendlineType').Polynomial)

tredLinePol.setTrendlineType(Rjb::import('com.aspose.slides.TrendlineType').Polynomial)

tredLinePol.setForward(1)

tredLinePol.setOrder(3)

\# Adding Power trend line for chart series 3

tredLinePower = chart.getChartData().getSeries().get_Item(1).getTrendLines().add(Rjb::import('com.aspose.slides.TrendlineType').Power)

tredLinePower.setTrendlineType(Rjb::import('com.aspose.slides.TrendlineType').Power)

tredLinePower.setBackward(1)

\# Saving the presentation

save_format = Rjb::import('com.aspose.slides.SaveFormat')

pres.save(data_dir + "ChartTrendLines.pptx", save_format.Pptx)

puts "Done with chart trend lines, please check the output file."

Download Running Code

Download Adding Chart Trend Lines (Aspose.Slides) from any of the below mentioned social coding sites:

• GitHub