Konvertera diagram till bild för japanska regioner med JavaScript via C++

I det här ämnet kommer vi att visa dig hur du ställer in japansk region för ett diagram.

Definierar en arvs klass

Första steget, du behöver definiera en klass “ChartJapaneseSettings” som ärver från ChartGlobalizationSettings.
Sedan, genom att omdefiniera relaterade funktioner, kan du ange texten i diagramelementen på ditt eget sprak.
Kodexempel:

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example</title>
        <meta charset="utf-8" />
    </head>
    <body>
        <h1>Chart Globalization - Japanese Example</h1>
        <input type="file" id="fileInput" accept=".xls,.xlsx,.csv" />
        <button id="runExample">Run Example</button>
        <a id="downloadLink" style="display: none;">Download Result</a>
        <div id="result"></div>
    </body>

    <script src="aspose.cells.js.min.js"></script>
    <script type="text/javascript">
        const { Workbook, SaveFormat, Worksheet, Cell, Utils } = AsposeCells;

        AsposeCells.onReady({
            license: "/lic/aspose.cells.enc",
            fontPath: "/fonts/",
            fontList: [
                "arial.ttf",
                "NotoSansSC-Regular.ttf"
            ]
        }).then(() => {
            console.log("Aspose.Cells initialized");
        });

        // Converted class from JavaScript to browser-compatible JavaScript
        class ChartJapaneseSettings extends AsposeCells.ChartGlobalizationSettings {
            constructor() {
                super();
                // Parameterless getters converted to properties
                this.axisTitleName = "軸タイトル";
                this.chartTitleName = "グラフ タイトル";
                this.legendDecreaseName = "削減";
                this.legendIncreaseName = "ぞうか";
                this.legendTotalName = "すべての";
                this.otherName = "その他";
                this.seriesName = "シリーズ";
            }

            // Getter with parameter converted to a method with lowercase first letter (no 'get' prefix)
            axisUnitName(type) {
                switch (type) {
                    case AsposeCells.DisplayUnitType.None:
                        return '';
                    case AsposeCells.DisplayUnitType.Hundreds:
                        return "百";
                    case AsposeCells.DisplayUnitType.Thousands:
                        return "千";
                    case AsposeCells.DisplayUnitType.TenThousands:
                        return "万";
                    case AsposeCells.DisplayUnitType.HundredThousands:
                        return "10万";
                    case AsposeCells.DisplayUnitType.Millions:
                        return "百万";
                    case AsposeCells.DisplayUnitType.TenMillions:
                        return "千万";
                    case AsposeCells.DisplayUnitType.HundredMillions:
                        return "億";
                    case AsposeCells.DisplayUnitType.Billions:
                        return "10億";
                    case AsposeCells.DisplayUnitType.Trillions:
                        return "兆";
                    default:
                        return '';
                }
            }
        }

        document.getElementById('runExample').addEventListener('click', async () => {
            const fileInput = document.getElementById('fileInput');
            if (!fileInput.files.length) {
                document.getElementById('result').innerHTML = '<p style="color: red;">Please select an Excel file (optional for this demo).</p>';
                return;
            }

            // No try-catch per instructions; let errors propagate
            const file = fileInput.files[0];
            const arrayBuffer = await file.arrayBuffer();

            // Example usage: instantiate the ChartJapaneseSettings and demonstrate properties/methods
            const settings = new ChartJapaneseSettings();

            // Example: show axis title name and chart title name and a sample axis unit name
            const axisTitle = settings.axisTitleName;
            const chartTitle = settings.chartTitleName;
            const sampleUnit = settings.axisUnitName(AsposeCells.DisplayUnitType.Thousands);

            document.getElementById('result').innerHTML = `
                <p><strong>axisTitleName:</strong> ${axisTitle}</p>
                <p><strong>chartTitleName:</strong> ${chartTitle}</p>
                <p><strong>axisUnitName(DisplayUnitType.Thousands):</strong> ${sampleUnit}</p>
                <p style="color: green;">ChartJapaneseSettings instantiated successfully.</p>
            `;

            // Additionally, demonstrate opening the provided file as a Workbook (no modifications)
            const workbook = new Workbook(new Uint8Array(arrayBuffer));

            // Prepare a simple save to allow downloading the opened file back (unchanged)
            const outputData = workbook.save(SaveFormat.Xlsx);
            const blob = new Blob([outputData]);
            const downloadLink = document.getElementById('downloadLink');
            downloadLink.href = URL.createObjectURL(blob);
            downloadLink.download = 'output.xlsx';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Resulting Excel File';
        });
    </script>
</html>

Konfigurera japanska inställningar för diagram

I detta steg kommer du använda klassen “ChartJapaneseSettings” du definierade i föregående steg.
Kodexempel:

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example - Chart to Image</title>
    </head>
    <body>
        <h1>Chart to Image Example</h1>
        <input type="file" id="fileInput" accept=".xls,.xlsx,.csv" />
        <button id="runExample">Run Example</button>
        <a id="downloadLink" style="display: none;">Download Result</a>
        <div id="result"></div>
    </body>

    <script src="aspose.cells.js.min.js"></script>
    <script type="text/javascript">
        const { Workbook, SaveFormat, Worksheet, Cell, Utils, ChartJapaneseSettings } = AsposeCells;

        AsposeCells.onReady({
            license: "/lic/aspose.cells.enc",
            fontPath: "/fonts/",
            fontList: [
                "arial.ttf",
                "NotoSansSC-Regular.ttf"
            ]
        }).then(() => {
            console.log("Aspose.Cells initialized");
        });

        document.getElementById('runExample').addEventListener('click', async () => {
            const fileInput = document.getElementById('fileInput');
            if (!fileInput.files.length) {
                document.getElementById('result').innerHTML = '<p style="color: red;">Please select an Excel file.</p>';
                return;
            }

            const file = fileInput.files[0];
            const arrayBuffer = await file.arrayBuffer();

            // Instantiating a Workbook object from the uploaded file
            const workbook = new Workbook(new Uint8Array(arrayBuffer));

            // Apply Japanese chart settings
            workbook.settings.globalizationSettings.chartSettings = new ChartJapaneseSettings();

            // Access the first chart in the first worksheet
            const chart0 = workbook.worksheets.get(0).charts.get(0);

            // Convert chart to image (PNG)
            const imageData = chart0.toImage(SaveFormat.Png);
            const blob = new Blob([imageData], { type: 'image/png' });
            const downloadLink = document.getElementById('downloadLink');
            downloadLink.href = URL.createObjectURL(blob);
            downloadLink.download = 'Output.png';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Chart Image';

            document.getElementById('result').innerHTML = '<p style="color: green;">Chart converted to image successfully! Click the download link to get the image.</p>';
        });
    </script>
</html>

Sedan kan du se effekten i utdata bilden, elementen i diagrammet kommer att renderas enligt dina inställningar.

Slutsats

I det här exemplet, om du inte anger japansk region för ett diagram, kan följande diagramelement renderas på standardspråket, såsom engelska.
Efter ovanstående operation kan vi få en utdata-diagrambild med japansk region.

Stödda element	Värde i detta exempel	Standardvärde i den engelska miljön
axeltitelnamn	軸タイトル	Axeltitel
axelenhetsnamn	百,千…	Hundratals, Tusentals…
diagramtitelnamn	グラフタイトル	Diagramtitel
legend öka namn	ぞうか	Ökning
legend minskning namn	削減	Minskning
legend totalt namn	すべての	Totalt
annat namn	その他	Övrigt
Serienamn	シリーズ	Serie

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