Export Chart to SVG with viewBox attribute using C++

By default, when the chart is exported to SVG format, the viewBox attribute is not included in its XML. However, Aspose.Cells provides ImageOrPrintOptions.GetSVGFitToViewPort() property which when set to true exports the chart to SVG with viewBox attribute.

Export Chart to SVG with viewBox attribute

The following sample code exports the chart to SVG format with the viewBox attribute.

#include <iostream>
#include "Aspose.Cells.h"
using namespace Aspose::Cells;

int main()
{
    Aspose::Cells::Startup();

    // For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-C

    // Source directory path
    U16String srcDir(u"..\\Data\\01_SourceDirectory\\");

    // Create workbook object from source file
    U16String sampleChartBook = srcDir + u"SampleChartBook.xlsx";
    Workbook workbook(sampleChartBook);

    // Access first worksheet
    Worksheet worksheet = workbook.GetWorksheets().Get(0);

    // Access first chart inside the worksheet
    Chart chart = worksheet.GetCharts().Get(0);

    // Set image or print options with SVGFitToViewPort true
    ImageOrPrintOptions opts;
    opts.SetImageType(ImageType::Svg);
    opts.SetSVGFitToViewPort(true);

    // Save the chart to svg format
    U16String outputSvg = srcDir + u"Image_out.svg";
    chart.ToImage(outputSvg, opts);

    std::cout << "Chart saved successfully in SVG format!" << std::endl;

    Aspose::Cells::Cleanup();
}

If you open the chart’s SVG in notepad, you will find the viewBox attribute similar to this.

 <svg xmlns="http://www.w3.org/2000/svg"

     xmlns:xlink="http://www.w3.org/1999/xlink"
 <span class="n">width</span><span class="o">=</span><span class="s">&#34;100%&#34;</span> <span class="n">height</span><span class="o">=</span><span class="s">&#34;100%&#34;</span>
<span class="n">viewBox</span><span class="o">=</span><span class="s">&#34;0 0 480 288&#34;</span><span class="o">&gt;</span></code></pre></div>

Converting Chart to Image in SVG Format with C++