U ovom ćemo primjeru razumjeti kako stvoriti tortni grafikon u Excel datoteci koristeći C++. Tortni dijagram možete umetnuti u radni list programa Excel na Microsoft Windows, Linux itd. programski u C++.
Koraci za izradu tortnog grafikona u Excel datoteci pomoću C++
- Konfigurirajte paket Aspose.Cells.Cpp s NuGet upraviteljem paketa
- Dodajte referencu na imenski prostor Aspose::Cells
- Inicijalizirajte objekt klase Workbook za stvaranje nove Excel datoteke
- Dodajte uzorke vrijednosti u ćelije
- Dodajte zbirku serija i postavite podatke o kategoriji
- Formatirajte oznake podataka pomoću sučelja IDataLabels
- Spremite izlaznu Excel datoteku nakon umetanja kružnog grafikona u C++
U donjem primjeru naučit ćete kako umetnuti tortni grafikon u Excel s C++. Inicijalizirajte praznu radnu knjigu i napravite tortni grafikon u Excel datoteci koristeći C++ jednostavno koristeći nekoliko API poziva.
Kod za umetanje kružnog grafikona u Excelu s C++
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| #pragma once | |
| #include "Aspose.Cells.h" | |
| class ExcelPieChart | |
| { | |
| void CreateExcelPieChart() | |
| { | |
| // Set the license for Aspose.Cells API for creating pie chart | |
| intrusive_ptr<License> CellChartLicense = new License(); | |
| CellChartLicense->SetLicense(new String("Aspose.Total.lic")); | |
| // Instantiate the Workbook object to load Excel file for inserting pie chart | |
| intrusive_ptr<IWorkbook> ChartWorkbook = Factory::CreateIWorkbook(); | |
| //Accessing a worksheet using its index | |
| intrusive_ptr<IWorksheet> ChartWorksheet = ChartWorkbook->GetIWorksheets()->GetObjectByIndex(0); | |
| // Adding sample values to cells | |
| ChartWorksheet->GetICells()->GetObjectByIndex(new String("A1"))->PutValue("Quarters"); | |
| ChartWorksheet->GetICells()->GetObjectByIndex(new String("A2"))->PutValue("1st_Qtr"); | |
| ChartWorksheet->GetICells()->GetObjectByIndex(new String("A3"))->PutValue("2nd_Qtr"); | |
| ChartWorksheet->GetICells()->GetObjectByIndex(new String("A4"))->PutValue("3rd_Qtr"); | |
| ChartWorksheet->GetICells()->GetObjectByIndex(new String("A5"))->PutValue("4th_Qtr"); | |
| ChartWorksheet->GetICells()->GetObjectByIndex(new String("B1"))->PutValue("Sales"); | |
| ChartWorksheet->GetICells()->GetObjectByIndex(new String("B2"))->PutValue("6.3"); | |
| ChartWorksheet->GetICells()->GetObjectByIndex(new String("B3"))->PutValue("3.1"); | |
| ChartWorksheet->GetICells()->GetObjectByIndex(new String("B4"))->PutValue("2.2"); | |
| ChartWorksheet->GetICells()->GetObjectByIndex(new String("B5"))->PutValue("1.9"); | |
| // Adding a Pie chart to the worksheet in the workbook | |
| int chartIndex = ChartWorksheet->GetICharts()->Add(ChartType::ChartType_Pie, 10, 2, 34, 13); | |
| // Accessing the instance of the newly created Pie chart | |
| intrusive_ptr<Aspose::Cells::Charts::IChart> PieChart = ChartWorksheet->GetICharts()->GetObjectByIndex(chartIndex); | |
| // Adding SeriesCollection to the chart from "A2" to "B5" | |
| PieChart->GetNISeries()->Add(new String("A2:B5"), true); | |
| PieChart->GetNISeries()->SetCategoryData(new String("A2:A5")); | |
| PieChart->GetITitle()->SetText(new String("Sales By Quarter")); | |
| PieChart->GetITitle()->GetIFont()->SetColor(Systems::Drawing::Color::GetBlue()); | |
| PieChart->GetITitle()->GetIFont()->SetBold(true); | |
| PieChart->GetITitle()->GetIFont()->SetSize(11); | |
| // Format the datalebels of all series | |
| for (int i = 0; i < PieChart->GetNISeries()->GetCount(); i++) | |
| { | |
| intrusive_ptr<IDataLabels> dataLabels = PieChart->GetNISeries()->GetObjectByIndex(i)->GetIDataLabels(); | |
| dataLabels->SetShowValue(true); | |
| dataLabels->SetShowPercentage(true); | |
| } | |
| // Save the output Excel file with newly created pie chart | |
| ChartWorkbook->Save(new String ("output.xlsx")); | |
| } | |
| }; |
Možete dodati tortni grafikon u Excel datoteku s C++ umetanjem vrijednosti grafikona i programskim formatiranjem oznaka podataka. Možete jednostavno izraditi tortni grafikon bez potrebe za instaliranjem MS Excela ili bilo kojeg drugog alata. U prethodnom smo primjeru istražili Kako ukloniti formulu iz Excel datoteke u C++ koji sadrži primjer za uklanjanje formule iz Excel datoteke.
