Erstellen eines Kreis Diagramms mit Leitlinien mit C++
Um die Verwendung der API Aspose.Cells for C++ zu demonstrieren, um ein Tortendiagramm mit Führungslinien zu erstellen, erstellen wir zunächst ein neues Workbook und geben einige Daten ein, die als Datenquelle für die Serie dienen. Sobald die Daten vorhanden sind, fügen wir ein Chart vom Typ ChartType.Pie zur Diagrammsammlung hinzu und stellen seine verschiedenen Aspekte ein, um die gewünschte Diagrammansicht zu erhalten.
#include <iostream>
#include "Aspose.Cells.h"
using namespace Aspose::Cells;
int main()
{
Aspose::Cells::Startup();
// Source directory path
U16String srcDir(u"..\\Data\\01_SourceDirectory\\");
// Output directory path
U16String outDir(u"..\\Data\\02_OutputDirectory\\");
// Create an instance of Workbook in XLSX format
Workbook workbook(FileFormatType::Xlsx);
// Access the first worksheet
Worksheet worksheet = workbook.GetWorksheets().Get(0);
// Add two columns of data
worksheet.GetCells().Get(u"A1").PutValue(u"Retail");
worksheet.GetCells().Get(u"A2").PutValue(u"Services");
worksheet.GetCells().Get(u"A3").PutValue(u"Info & Communication");
worksheet.GetCells().Get(u"A4").PutValue(u"Transport Equip");
worksheet.GetCells().Get(u"A5").PutValue(u"Construction");
worksheet.GetCells().Get(u"A6").PutValue(u"Other Products");
worksheet.GetCells().Get(u"A7").PutValue(u"Wholesale");
worksheet.GetCells().Get(u"A8").PutValue(u"Land Transport");
worksheet.GetCells().Get(u"A9").PutValue(u"Air Transport");
worksheet.GetCells().Get(u"A10").PutValue(u"Electric Appliances");
worksheet.GetCells().Get(u"A11").PutValue(u"Securities");
worksheet.GetCells().Get(u"A12").PutValue(u"Textiles & Apparel");
worksheet.GetCells().Get(u"A13").PutValue(u"Machinery");
worksheet.GetCells().Get(u"A14").PutValue(u"Metal Products");
worksheet.GetCells().Get(u"A15").PutValue(u"Cash");
worksheet.GetCells().Get(u"A16").PutValue(u"Banks");
worksheet.GetCells().Get(u"B1").PutValue(10.4);
worksheet.GetCells().Get(u"B2").PutValue(5.2);
worksheet.GetCells().Get(u"B3").PutValue(6.4);
worksheet.GetCells().Get(u"B4").PutValue(10.4);
worksheet.GetCells().Get(u"B5").PutValue(7.9);
worksheet.GetCells().Get(u"B6").PutValue(4.1);
worksheet.GetCells().Get(u"B7").PutValue(3.5);
worksheet.GetCells().Get(u"B8").PutValue(5.7);
worksheet.GetCells().Get(u"B9").PutValue(3);
worksheet.GetCells().Get(u"B10").PutValue(14.7);
worksheet.GetCells().Get(u"B11").PutValue(3.6);
worksheet.GetCells().Get(u"B12").PutValue(2.8);
worksheet.GetCells().Get(u"B13").PutValue(7.8);
worksheet.GetCells().Get(u"B14").PutValue(2.4);
worksheet.GetCells().Get(u"B15").PutValue(1.8);
worksheet.GetCells().Get(u"B16").PutValue(10.1);
// Create a pie chart and add it to the collection of charts
int id = worksheet.GetCharts().Add(ChartType::Pie, 3, 3, 23, 13);
// Access newly created Chart instance
Chart chart = worksheet.GetCharts().Get(id);
// Set series data range
chart.GetNSeries().Add(u"B1:B16", true);
// Set category data range
chart.GetNSeries().SetCategoryData(u"A1:A16");
// Turn off legend
chart.SetShowLegend(false);
// Access data labels
DataLabels dataLabels = chart.GetNSeries().Get(0).GetDataLabels();
// Turn on category names
dataLabels.SetShowCategoryName(true);
// Turn on percentage format
dataLabels.SetShowPercentage(true);
// Set position
dataLabels.SetPosition(LabelPositionType::OutsideEnd);
// Set separator
dataLabels.SetSeparatorType(DataLabelsSeparatorType::Comma);
// Save the workbook
workbook.Save(outDir + u"PieChart_out.xlsx");
std::cout << "Pie chart created successfully!" << std::endl;
Aspose::Cells::Cleanup();
}
Bisher haben wir ein Tortendiagramm erstellt und seine verschiedenen Aspekte festgelegt. Jetzt werden wir die Führungslinien für das Diagramm einschalten. Bitte beachten Sie, dass wir die Datenbeschriftungen ein wenig verschieben müssen, um die Führungslinien anzuzeigen.
Der folgende Code aktiviert die Führungslinien, aktualisiert das Diagramm und berechnet dann die Positionen der Datenbeschriftungen, um sie entsprechend zu verschieben.
#include <iostream>
#include "Aspose.Cells.h"
using namespace Aspose::Cells;
using namespace Aspose::Cells::Charts;
int main()
{
Aspose::Cells::Startup();
// Create an instance of Workbook in XLSX format
Workbook workbook(FileFormatType::Xlsx);
// Access the first worksheet
Worksheet worksheet = workbook.GetWorksheets().Get(0);
// Add two columns of data
worksheet.GetCells().Get(u"A1").PutValue(u"Retail");
worksheet.GetCells().Get(u"A2").PutValue(u"Services");
worksheet.GetCells().Get(u"A3").PutValue(u"Info & Communication");
worksheet.GetCells().Get(u"A4").PutValue(u"Transport Equip");
worksheet.GetCells().Get(u"A5").PutValue(u"Construction");
worksheet.GetCells().Get(u"A6").PutValue(u"Other Products");
worksheet.GetCells().Get(u"A7").PutValue(u"Wholesale");
worksheet.GetCells().Get(u"A8").PutValue(u"Land Transport");
worksheet.GetCells().Get(u"A9").PutValue(u"Air Transport");
worksheet.GetCells().Get(u"A10").PutValue(u"Electric Appliances");
worksheet.GetCells().Get(u"A11").PutValue(u"Securities");
worksheet.GetCells().Get(u"A12").PutValue(u"Textiles & Apparel");
worksheet.GetCells().Get(u"A13").PutValue(u"Machinery");
worksheet.GetCells().Get(u"A14").PutValue(u"Metal Products");
worksheet.GetCells().Get(u"A15").PutValue(u"Cash");
worksheet.GetCells().Get(u"A16").PutValue(u"Banks");
worksheet.GetCells().Get(u"B1").PutValue(10.4);
worksheet.GetCells().Get(u"B2").PutValue(5.2);
worksheet.GetCells().Get(u"B3").PutValue(6.4);
worksheet.GetCells().Get(u"B4").PutValue(10.4);
worksheet.GetCells().Get(u"B5").PutValue(7.9);
worksheet.GetCells().Get(u"B6").PutValue(4.1);
worksheet.GetCells().Get(u"B7").PutValue(3.5);
worksheet.GetCells().Get(u"B8").PutValue(5.7);
worksheet.GetCells().Get(u"B9").PutValue(3);
worksheet.GetCells().Get(u"B10").PutValue(14.7);
worksheet.GetCells().Get(u"B11").PutValue(3.6);
worksheet.GetCells().Get(u"B12").PutValue(2.8);
worksheet.GetCells().Get(u"B13").PutValue(7.8);
worksheet.GetCells().Get(u"B14").PutValue(2.4);
worksheet.GetCells().Get(u"B15").PutValue(1.8);
worksheet.GetCells().Get(u"B16").PutValue(10.1);
// Create a pie chart and add it to the collection of charts
int id = worksheet.GetCharts().Add(ChartType::Pie, 3, 3, 23, 13);
// Access newly created Chart instance
Chart chart = worksheet.GetCharts().Get(id);
// Set series data range
chart.GetNSeries().Add(u"B1:B16", true);
// Set category data range
chart.GetNSeries().SetCategoryData(u"A1:A16");
// Turn off legend
chart.SetShowLegend(false);
// Access data labels
DataLabels dataLabels = chart.GetNSeries().Get(0).GetDataLabels();
// Turn on category names
dataLabels.SetShowCategoryName(true);
// Turn on percentage format
dataLabels.SetShowPercentage(true);
// Set position
dataLabels.SetPosition(LabelPositionType::OutsideEnd);
// Set separator
dataLabels.SetSeparatorType(DataLabelsSeparatorType::Comma);
// Turn on leader lines
chart.GetNSeries().Get(0).SetHasLeaderLines(true);
// Calculate chart
chart.Calculate();
// You need to move DataLabels a little leftward or rightward depending on their position to show leader lines
int DELTA = 100;
for (int i = 0; i < chart.GetNSeries().Get(0).GetPoints().GetCount(); i++)
{
int X = chart.GetNSeries().Get(0).GetPoints().Get(i).GetDataLabels().GetX();
// If it is greater than 2000, then move the X position a little right otherwise move the X position a little left
if (X > 2000)
chart.GetNSeries().Get(0).GetPoints().Get(i).GetDataLabels().SetX(X + DELTA);
else
chart.GetNSeries().Get(0).GetPoints().Get(i).GetDataLabels().SetX(X - DELTA);
}
// Save the workbook
workbook.Save(u"output.xlsx");
Aspose::Cells::Cleanup();
}
Abschließend speichert der folgende Code das Diagramm im Bildformat und die Arbeitsmappe im XLSX-Format.
#include <iostream>
#include "Aspose.Cells.h"
using namespace Aspose::Cells;
using namespace Aspose::Cells::Charts;
using namespace Aspose::Cells::Drawing;
int main()
{
Aspose::Cells::Startup();
// Create an instance of Workbook in XLSX format
Workbook workbook(FileFormatType::Xlsx);
// Access the first worksheet
Worksheet worksheet = workbook.GetWorksheets().Get(0);
// Add two columns of data
worksheet.GetCells().Get(u"A1").PutValue(u"Retail");
worksheet.GetCells().Get(u"A2").PutValue(u"Services");
worksheet.GetCells().Get(u"A3").PutValue(u"Info & Communication");
worksheet.GetCells().Get(u"A4").PutValue(u"Transport Equip");
worksheet.GetCells().Get(u"A5").PutValue(u"Construction");
worksheet.GetCells().Get(u"A6").PutValue(u"Other Products");
worksheet.GetCells().Get(u"A7").PutValue(u"Wholesale");
worksheet.GetCells().Get(u"A8").PutValue(u"Land Transport");
worksheet.GetCells().Get(u"A9").PutValue(u"Air Transport");
worksheet.GetCells().Get(u"A10").PutValue(u"Electric Appliances");
worksheet.GetCells().Get(u"A11").PutValue(u"Securities");
worksheet.GetCells().Get(u"A12").PutValue(u"Textiles & Apparel");
worksheet.GetCells().Get(u"A13").PutValue(u"Machinery");
worksheet.GetCells().Get(u"A14").PutValue(u"Metal Products");
worksheet.GetCells().Get(u"A15").PutValue(u"Cash");
worksheet.GetCells().Get(u"A16").PutValue(u"Banks");
worksheet.GetCells().Get(u"B1").PutValue(10.4);
worksheet.GetCells().Get(u"B2").PutValue(5.2);
worksheet.GetCells().Get(u"B3").PutValue(6.4);
worksheet.GetCells().Get(u"B4").PutValue(10.4);
worksheet.GetCells().Get(u"B5").PutValue(7.9);
worksheet.GetCells().Get(u"B6").PutValue(4.1);
worksheet.GetCells().Get(u"B7").PutValue(3.5);
worksheet.GetCells().Get(u"B8").PutValue(5.7);
worksheet.GetCells().Get(u"B9").PutValue(3);
worksheet.GetCells().Get(u"B10").PutValue(14.7);
worksheet.GetCells().Get(u"B11").PutValue(3.6);
worksheet.GetCells().Get(u"B12").PutValue(2.8);
worksheet.GetCells().Get(u"B13").PutValue(7.8);
worksheet.GetCells().Get(u"B14").PutValue(2.4);
worksheet.GetCells().Get(u"B15").PutValue(1.8);
worksheet.GetCells().Get(u"B16").PutValue(10.1);
// Create a pie chart and add it to the collection of charts
int id = worksheet.GetCharts().Add(ChartType::Pie, 3, 3, 23, 13);
// Access newly created Chart instance
Chart chart = worksheet.GetCharts().Get(id);
// Set series data range
chart.GetNSeries().Add(u"B1:B16", true);
// Set category data range
chart.GetNSeries().SetCategoryData(u"A1:A16");
// Turn off legend
chart.SetShowLegend(false);
// Access data labels
DataLabels dataLabels = chart.GetNSeries().Get(0).GetDataLabels();
// Turn on category names
dataLabels.SetShowCategoryName(true);
// Turn on percentage format
dataLabels.SetShowPercentage(true);
// Set position
dataLabels.SetPosition(LabelPositionType::OutsideEnd);
// Set separator
dataLabels.SetSeparatorType(DataLabelsSeparatorType::Comma);
// In order to save the chart image, create an instance of ImageOrPrintOptions
ImageOrPrintOptions anOption;
// Set image format
anOption.SetImageType(ImageType::Png);
// Set resolution
anOption.SetHorizontalResolution(200);
anOption.SetVerticalResolution(200);
// Render chart to image
chart.ToImage(u"output_out.png", anOption);
// Save the workbook to see chart inside the Excel
workbook.Save(u"output_out.xlsx");
Aspose::Cells::Cleanup();
}
Ergebnis Tortendiagramm |
---|
![]() |
Erweiterte Themen
- Benutzerdefinierte Farben für Tortenstücke oder Sektoren in einem Tortendiagramm
- Herausfinden, ob Datenpunkte in der zweiten Torte oder Balken in einem Tortendiagramm der Torten oder Balken sind