So erstellen Sie Diagramme in einer Präsentation

Eine neue Aspose.Slides für Java API wurde veröffentlicht, und jetzt unterstützt dieses einzelne Produkt die Möglichkeit, PowerPoint-Dokumente von Grund auf neu zu erstellen und vorhandene zu bearbeiten.

Unterstützung für Legacy-Code

Um den Legacy-Code, der mit Aspose.Slides für Java-Versionen vor 14.x.x entwickelt wurde, verwenden zu können, müssen Sie einige kleinere Änderungen in Ihrem Code vornehmen und der Code wird wie zuvor funktionieren. Alle Klassen, die in der alten Aspose.Slides für Java unter den Namespaces com.aspose.slides und com.aspose.slides.pptx vorhanden waren, sind jetzt im einzelnen Namespace com.aspose.slides zusammengeführt worden. Bitte werfen Sie einen Blick auf den folgenden einfachen Codeausschnitt zum Erstellen eines normalen Diagramms von Grund auf in einer Präsentation unter Verwendung der Legacy Aspose.Slides API und folgen Sie den Schritten, die beschreiben, wie Sie zur neuen zusammengeführten API migrieren können.

Legacy Aspose.Slides für Java Ansatz

//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");

Neuer Aspose.Slides für Java 14.x.x Ansatz

//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);

Bitte werfen Sie einen Blick auf den folgenden einfachen Codeausschnitt zum Erstellen eines Streudiagramms von Grund auf in einer Präsentation unter Verwendung der Legacy Aspose.Slides API und wie Sie dies mit der neuen zusammengeführten API erreichen können.

Legacy Aspose.Slides für Java Ansatz

//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");

Neuer Aspose.Slides für Java 14.x.x Ansatz

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);