使用 viewBox 属性将图表导出到 SVG

默认情况下，当图表导出为 SVG 格式时，视图框属性不包含在其 XML 中。但是，Aspose.Cells 提供ImageOrPrintOptions.SVGFitToViewPort设置为的属性真的使用 viewBox 属性将图表导出到 SVG。

使用 viewBox 属性将图表导出到 SVG

以下示例代码使用 viewBox 属性将图表导出为 SVG 格式。

	// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
	// The path to the documents directory.
	string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

	// Create workbook object from source file
	Workbook workbook = new Workbook(dataDir + "SampleChartBook.xlsx");

	// Access first worksheet
	Worksheet worksheet = workbook.Worksheets[0];

	// Access first chart inside the worksheet
	Aspose.Cells.Charts.Chart chart = worksheet.Charts[0];

	// Set image or print options with SVGFitToViewPort true
	Aspose.Cells.Rendering.ImageOrPrintOptions opts = new Aspose.Cells.Rendering.ImageOrPrintOptions();
	opts.ImageType = ImageType.Svg;
	opts.SVGFitToViewPort = true;

	// Save the chart to svg format
	chart.ToImage(dataDir + "Image_out.svg", opts);

view raw Examples-CSharp-Articles-RenderingAndPrinting-ExportChartToSvgWithViewBox-ExportChartToSvgWithViewBox.cs hosted with ❤ by GitHub

如果你用记事本打开图表的SVG，你会发现视图框属性类似于此。

 <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>


    
        
            
                将图表转换为 SVG 格式的图像