Convertire grafico in immagine in Ruby
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Aspose.Cells - Convertire grafico in immagine
Per convertire un grafico in immagine usando Aspose.Cells for Java in Ruby, basta invocare il modulo Converter.
Codice Ruby
def chart_to_image()
# Create a new Workbook.
workbook = Rjb::import('com.aspose.cells.Workbook').new
# Get the first worksheet.
sheet = workbook.getWorksheets().get(0)
# Set the name of worksheet
sheet.setName("Data")
# Get the cells collection in the sheet.
cells = workbook.getWorksheets().get(0).getCells()
# Put some values into a cells of the Data sheet.
cells.get("A1").setValue("Region")
cells.get("A2").setValue("France")
cells.get("A3").setValue("Germany")
cells.get("A4").setValue("England")
cells.get("A5").setValue("Sweden")
cells.get("A6").setValue("Italy")
cells.get("A7").setValue("Spain")
cells.get("A8").setValue("Portugal")
cells.get("B1").setValue("Sale")
cells.get("B2").setValue(70000)
cells.get("B3").setValue(55000)
cells.get("B4").setValue(30000)
cells.get("B5").setValue(40000)
cells.get("B6").setValue(35000)
cells.get("B7").setValue(32000)
cells.get("B8").setValue(10000)
# Create chart
chart_type = Rjb::import('com.aspose.cells.ChartType')
chart_index = sheet.getCharts().add(chart_type.COLUMN, 12, 1, 33, 12)
chart = sheet.getCharts().get(chart_index)
# Set properties of chart title
chart.getTitle().setText("Sales By Region")
chart.getTitle().getFont().setBold(true)
chart.getTitle().getFont().setSize(12)
# Set properties of nseries
chart.getNSeries().add("Data!B2:B8", true)
chart.getNSeries().setCategoryData("Data!A2:A8")
# Set the fill colors for the series's data points (France - Portugal(7 points))
chart_points = chart.getNSeries().get(0).getPoints()
color = Rjb::import('com.aspose.cells.Color')
point = chart_points.get(0)
point.getArea().setForegroundColor(color.getCyan())
point = chart_points.get(1)
point.getArea().setForegroundColor(color.getBlue())
point = chart_points.get(2)
point.getArea().setForegroundColor(color.getYellow())
point = chart_points.get(3)
point.getArea().setForegroundColor(color.getRed())
point = chart_points.get(4)
point.getArea().setForegroundColor(color.getBlack())
point = chart_points.get(5)
point.getArea().setForegroundColor(color.getGreen())
point = chart_points.get(6)
point.getArea().setForegroundColor(color.getMaroon())
# Set the legend invisible
chart.setShowLegend(false)
# Get the Chart image
img_opts = Rjb::import('com.aspose.cells.ImageOrPrintOptions').new
image_format = Rjb::import('com.aspose.cells.ImageFormat')
img_opts.setImageFormat(image_format.getPng())
# Save the chart image file.
chart.toImage(@data_dir + "MyChartImage.png", img_opts)
# Print message
puts "Convert chart to image successfully."
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