Cómo crear gráficos en una presentación

Soporte para código heredado

Para utilizar el código heredado desarrollado con Aspose.Slides para Java en versiones anteriores a 14.x.x, necesitas realizar algunos cambios menores en tu código y este funcionará como antes. Todas las clases que estaban presentes en la antigua Aspose.Slides para Java bajo los namespaces com.aspose.slides y com.aspose.slides.pptx ahora se han fusionado en un único namespace com.aspose.slides. Por favor, echa un vistazo al siguiente fragmento de código simple para crear un gráfico normal desde cero en una presentación utilizando la API heredada de Aspose.Slides y sigue los pasos que describen cómo migrar a la nueva API fusionada.

Enfoque heredado de Aspose.Slides para Java

//Instantiate PresentationEx class that represents PPTX file
PresentationEx pres = new PresentationEx();
//Access first slide
SlideEx sld = pres.getSlides().get_Item(0);
// Add chart with default data
ChartEx chart = sld.getShapes().addChart(ChartTypeEx.ClusteredColumn, 0, 0, 500, 500);
//Setting chart Title
chart.getChartTitle().getText().setText("Sample Title");
chart.getChartTitle().getText().setCenterText(true);
chart.getChartTitle().setHeight(20f);
chart.hasTitle(true);
//Set first series to Show Values
chart.getChartData().getSeries().get_Item(0).getLabels().setShowValue(true);
//Setting the index of chart data sheet
int defaultWorksheetIndex = 0;
//Getting the chart data worksheet
ChartDataCellFactory fact = chart.getChartData().getChartDataCellFactory();
//Delete default generated series and categories
chart.getChartData().getSeries().clear();
chart.getChartData().getCategories().clear();
int s = chart.getChartData().getSeries().getCapacity();
//Adding new series
chart.getChartData().getSeries().add(fact.getCell(defaultWorksheetIndex, 0, 1, "Series 1"), chart.getType());
chart.getChartData().getSeries().add(fact.getCell(defaultWorksheetIndex, 0, 2, "Series 2"), chart.getType());
//Adding new categories
chart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 1, 0, "Caetegoty 1"));
chart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 2, 0, "Caetegoty 2"));
chart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 3, 0, "Caetegoty 3"));
//Take first chart series
ChartSeriesEx series = chart.getChartData().getSeries().get_Item(0);
//Now populating series data
series.getValues().add(fact.getCell(defaultWorksheetIndex, 1, 1, 20));
series.getValues().add(fact.getCell(defaultWorksheetIndex, 2, 1, 50));
series.getValues().add(fact.getCell(defaultWorksheetIndex, 3, 1, 30));
//Setting fill color for series
series.getFormat().getFill().setFillType(FillTypeEx.Solid);
series.getFormat().getFill().getSolidFillColor().setColor(new java.awt.Color(com.aspose.slides.PresetColorEx.Red));
//Take second chart series
series = chart.getChartData().getSeries().get_Item(1);
//Now populating series data
series.getValues().add(fact.getCell(defaultWorksheetIndex, 1, 2, 30));
series.getValues().add(fact.getCell(defaultWorksheetIndex, 2, 2, 10));
series.getValues().add(fact.getCell(defaultWorksheetIndex, 3, 2, 60));
//Setting fill color for series
series.getFormat().getFill().setFillType(FillTypeEx.Solid);
series.getFormat().getFill().getSolidFillColor().setColor(new java.awt.Color(PresetColorEx.Green));
//create custom lables for each of categories for new series
//first label will be show Category name
DataLabelEx lbl = new DataLabelEx(series);
lbl.setShowCategoryName( true);
lbl.setId (0);
series.getLabels().add(lbl);
//Show series name for second label
lbl = new DataLabelEx(series);
lbl.setShowSeriesName(true);
lbl.setId(1);
series.getLabels().add(lbl);
//show value for third label
lbl = new DataLabelEx(series);
lbl.setShowValue(true);
lbl.setShowSeriesName(true);
lbl.setSeparator("/");
lbl.setId( 2);
series.getLabels().add(lbl);
// show value and custom text
lbl = new DataLabelEx(series);
lbl.getTextFrame().setText( "My text");
lbl.setId( 3);
series.getLabels().add(lbl);
// Save presentation with chart
pres.write("D:\\Aspose Data\\AsposeChart.pptx");

Nuevo enfoque de Aspose.Slides para Java 14.x.x

//Instantiate Presentation class that represents PPTX file
Presentation pres = new Presentation();
//Access first slide
ISlide sld = pres.getSlides().get_Item(0);
// Add chart with default data
IChart chart = sld.getShapes().addChart(ChartType.ClusteredColumn, 0, 0, 500, 500);
//Setting chart Title
//chart.getChartTitle().TextFrameForOverriding.Text = "Sample Title";
chart.getChartTitle().addTextFrameForOverriding("Sample Title");
chart.getChartTitle().getTextFrameForOverriding().getTextFrameFormat().setCenterText(NullableBool.True);
chart.getChartTitle().setHeight(20);
chart.hasTitle(true);
//Set first series to Show Values
chart.getChartData().getSeries().get_Item(0).getLabels().getDefaultDataLabelFormat().setShowValue(true);
//Setting the index of chart data sheet
int defaultWorksheetIndex = 0;
//Getting the chart data worksheet
IChartDataWorkbook fact = chart.getChartData().getChartDataWorkbook();
//Delete default generated series and categories
chart.getChartData().getSeries().clear();
chart.getChartData().getCategories().clear();
int s = chart.getChartData().getSeries().size();
s = chart.getChartData().getCategories().size();
//Adding new series
chart.getChartData().getSeries().add(fact.getCell(defaultWorksheetIndex, 0, 1, "Series 1"), chart.getType());
chart.getChartData().getSeries().add(fact.getCell(defaultWorksheetIndex, 0, 2, "Series 2"), chart.getType());
//Adding new categories
chart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 1, 0, "Caetegoty 1"));
chart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 2, 0, "Caetegoty 2"));
chart.getChartData().getCategories().add(fact.getCell(defaultWorksheetIndex, 3, 0, "Caetegoty 3"));
//Take first chart series
IChartSeries series = chart.getChartData().getSeries().get_Item(0);
//Now populating series data
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, 1, 1, 20));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, 2, 1, 50));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, 3, 1, 30));
//Setting fill color for series
series.getFormat().getFill().setFillType(FillType.Solid);
series.getFormat().getFill().getSolidFillColor().setColor(java.awt.Color.RED);
//Take second chart series
series = chart.getChartData().getSeries().get_Item(1);
//Now populating series data
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, 1, 2, 30));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, 2, 2, 10));
series.getDataPoints().addDataPointForBarSeries(fact.getCell(defaultWorksheetIndex, 3, 2, 60));
//Setting fill color for series
series.getFormat().getFill().setFillType(FillType.Solid);
series.getFormat().getFill().getSolidFillColor().setColor(java.awt.Color.GREEN);
//create custom labels for each of categories for new series
//first label will be show Category name
IDataLabel lbl = series.getDataPoints().get_Item(0).getLabel();
lbl.getDataLabelFormat().setShowCategoryName(true);
lbl = series.getDataPoints().get_Item(1).getLabel();
lbl.getDataLabelFormat().setShowSeriesName(true);
//Show value for third label
lbl = series.getDataPoints().get_Item(2).getLabel();
lbl.getDataLabelFormat().setShowValue(true);
lbl.getDataLabelFormat().setShowSeriesName(true);
lbl.getDataLabelFormat().setSeparator("/");
//Save presentation with chart
pres.save("AsposeChart.pptx",SaveFormat.Pptx);

Por favor, echa un vistazo al siguiente fragmento de código simple para crear un gráfico de dispersión desde cero en una presentación utilizando la API heredada de Aspose.Slides y cómo lograrlo con la nueva API fusionada.

Enfoque heredado de Aspose.Slides para Java

//Instantiate PresentationEx class that represents PPTX file
PresentationEx pres = new PresentationEx("D:\\AsposeChart.pptx");
//Access first slide
SlideEx sld = pres.getSlides().get_Item(0);
// Add chart with default data
ChartEx chart = (ChartEx)sld.getShapes().get_Item(0);
//Setting the index of chart data sheet
int defaultWorksheetIndex = 0;
//Getting the chart data worksheet
ChartDataCellFactory fact = chart.getChartData().getChartDataCellFactory();
//Take first chart series
ChartSeriesEx series = chart.getChartData().getSeries().getItem(0);
//Now updating series data
fact.getCell(defaultWorksheetIndex, 0, 1, "New_Series1");//modifying series name
series.getValues().get_Item(0).setValue(90);
series.getValues().get_Item(1).setValue(123);
series.getValues().get_Item(2).setValue(44);
//Take Second chart series
series = chart.getChartData().getSeries().getItem(1);
//Now updating series data
fact.getCell(defaultWorksheetIndex, 0, 2, "New_Series2");//modifying series name
series.getValues().get_Item(0).setValue(23);
series.getValues().get_Item(1).setValue(67);
series.getValues().get_Item(2).setValue(99);
//Now, Adding a new series
chart.getChartData().getSeries().add(fact.getCell(defaultWorksheetIndex, 0, 3, "Series 3"), chart.getType());
//Take 3rd chart series
series = chart.getChartData().getSeries().getItem(2);
//Now populating series data
series.getValues().add(fact.getCell(defaultWorksheetIndex, 1, 3, 20));
series.getValues().add(fact.getCell(defaultWorksheetIndex, 2, 3, 50));
series.getValues().add(fact.getCell(defaultWorksheetIndex, 3, 3, 30));
chart.setType(ChartTypeEx.ClusteredCylinder);
// Save presentation with chart
pres.write("D:\\AsposeChartMoodified.pptx");

Nuevo enfoque de Aspose.Slides para Java 14.x.x

Presentation pres = new Presentation();
ISlide slide = pres.getSlides().get_Item(0);
//Creating the default chart
IChart chart = slide.getShapes().addChart(ChartType.ScatterWithSmoothLines, 0, 0, 400, 400);
//Getting the default chart data worksheet index
int defaultWorksheetIndex = 0;
//Accessing the chart data worksheet
IChartDataWorkbook 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());
chart.getChartData().getSeries().add(fact.getCell(defaultWorksheetIndex, 1, 3, "Series 2"), chart.getType());
//Take first chart series
IChartSeries series = chart.getChartData().getSeries().get_Item(0);
//Add new point (1:3) there.
series.getDataPoints().addDataPointForScatterSeries(fact.getCell(defaultWorksheetIndex, 2, 1, 1), fact.getCell(defaultWorksheetIndex, 2, 2, 3));
//Add new point (2:10)
series.getDataPoints().addDataPointForScatterSeries(fact.getCell(defaultWorksheetIndex, 3, 1, 2), fact.getCell(defaultWorksheetIndex, 3, 2, 10));
//Edit the type of series
series.setType (ChartType.ScatterWithStraightLinesAndMarkers);
//Changing the chart series marker
series.getMarker().setSize(10);
series.getMarker().setSymbol(MarkerStyleType.Star);
//Take second chart series
series = chart.getChartData().getSeries().get_Item(1);
//Add new point (5:2) there.
series.getDataPoints().addDataPointForScatterSeries(fact.getCell(defaultWorksheetIndex, 2, 3, 5), fact.getCell(defaultWorksheetIndex, 2, 4, 2));
//Add new point (3:1)
series.getDataPoints().addDataPointForScatterSeries(fact.getCell(defaultWorksheetIndex, 3, 3, 3), fact.getCell(defaultWorksheetIndex, 3, 4, 1));
//Add new point (2:2)
series.getDataPoints().addDataPointForScatterSeries(fact.getCell(defaultWorksheetIndex, 4, 3, 2), fact.getCell(defaultWorksheetIndex, 4, 4, 2));
//Add new point (5:1)
series.getDataPoints().addDataPointForScatterSeries(fact.getCell(defaultWorksheetIndex, 5, 3, 5), fact.getCell(defaultWorksheetIndex, 5, 4, 1));
//Changing the chart series marker
series.getMarker().setSize(10);
series.getMarker().setSymbol (MarkerStyleType.Circle);
pres.save("AsposeScatterChart.pptx",SaveFormat.Pptx);