إنشاء بيانات شكل معايرة شريطية للصور

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ينتج رمز العينة التالي صورة DataBar للخلية C1. أولاً، يقوم بالوصول إلى كائن شرط التنسيق للخلية، ومن ذلك الكائن، يصل إلى DataBar ويستخدم طريقة DataBar.toImage(Cell, ImageOrPrintOptions) لإنشاء صورة الخلية. أخيرًا، يحفظ الصورة على القرص.

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example - Generate DataBar Image</title>
    </head>
    <body>
        <h1>Generate DataBar Image Example</h1>
        <input type="file" id="fileInput" accept=".xls,.xlsx" />
        <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");
        });

        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();

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

            // Access first worksheet
            const worksheet = workbook.worksheets.get(0);

            // Access the cell which contains conditional formatting databar
            const cell = worksheet.cells.get("C1");

            // Create and get the conditional formatting of the worksheet
            const idx = worksheet.conditionalFormattings.add();
            const fcc = worksheet.conditionalFormattings.get(idx);
            fcc.addCondition(AsposeCells.FormatConditionType.DataBar);
            fcc.addArea(AsposeCells.CellArea.createCellArea("C1", "C4"));

            // Access the conditional formatting databar
            const dbar = fcc.get(0).dataBar;

            // Create image or print options
            const opts = new AsposeCells.ImageOrPrintOptions();
            opts.imageType = AsposeCells.ImageType.Png;

            // Get the image bytes of the databar
            const imgBytes = dbar.toImage(cell, opts);

            // Create a blob and provide download link
            const blob = new Blob([imgBytes], { type: "image/png" });
            const downloadLink = document.getElementById('downloadLink');
            downloadLink.href = URL.createObjectURL(blob);
            downloadLink.download = 'outputGenerateDatabarImage.png';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Generated DataBar Image';

            document.getElementById('result').innerHTML = '<p style="color: green;">Image generated successfully! Click the download link to save the PNG file.</p>';
        });
    </script>
</html>