1. Create a new ASP.NET Core MVC application.
2. Right-click "Dependencies" in Solution Explorer, select "Add Project Reference", click the "Browse" button and add the following NOV DLLs as references:
   • Nevron.Nov.Presentation
   • Nevron.Nov.Host.Server
   • Nevron.Nov.Text
   • Nevron.Nov.Chart
3. Initialize NOV in the entry point of the MVC application - the "Program.cs" by adding the following code right before the app.Run() call:

   Initialize NOV	Copy Code
   // Apply your NOV license here. Skip this line of code while evaluating NOV NLicenseManager.Instance.SetLicense("license-key"); // Initialize NOV NNovApplicationInstaller.Install( Nevron.Nov.Text.NTextModule.Instance, Nevron.Nov.Chart.NChartModule.Instance );

4. Add the following action to the home controller - "Controllers\HomeController.cs". The chart view will not reside in a document and thus it won't have any styles to inherit. That's why an UI theme should be applied - see the code after the "Apply theme" comment below.

   Generate a chart SVG image on the server

   Copy Code

   public IActionResult GenerateSvgChart() { NSize chartSize = new(1000, 750); // Create chart view NChartView chartView = new NChartView(); chartView.Surface.CreatePredefinedChart(ENPredefinedChartType.Cartesian); chartView.Surface.Size = chartSize; // Apply theme NWindows10Theme theme = new NWindows10Theme(); chartView.Document.StyleSheets.ApplyTheme(theme); // Configure title chartView.Surface.Titles[0].Text = "Programming Language Popularity"; // Configure chart NCartesianChart chart = (NCartesianChart)chartView.Surface.Charts[0]; chart.SetPredefinedCartesianAxes(ENPredefinedCartesianAxis.XOrdinalYLinear); // Add interlace stripe NLinearScale linearScale = chart.Axes[ENCartesianAxis.PrimaryY].Scale as NLinearScale; NScaleStrip strip = new NScaleStrip(new NColorFill(ENNamedColor.Beige), null, true, 0, 0, 1, 1); strip.Interlaced = true; linearScale.Strips.Add(strip); // Create bar series NBarSeries bar = new NBarSeries(); bar.LegendView.Mode = ENSeriesLegendMode.DataPoints; bar.DataPoints.Add(new NBarDataPoint(18, "C++")); bar.DataPoints.Add(new NBarDataPoint(15, "Ruby")); bar.DataPoints.Add(new NBarDataPoint(21, "Python")); bar.DataPoints.Add(new NBarDataPoint(23, "Java")); bar.DataPoints.Add(new NBarDataPoint(27, "Javascript")); bar.DataPoints.Add(new NBarDataPoint(29, "C#")); bar.DataPoints.Add(new NBarDataPoint(26, "PHP")); chart.Series.Add(bar); // Export the chart to SVG in a memory stream NChartVectorImageExporter exporter = new NChartVectorImageExporter(chartView.Content); MemoryStream memoryStream = new MemoryStream(); exporter.SaveToStream(memoryStream, ENVectorImageFormat.Svg); // Serve the memory stream to the client memoryStream.Position = 0; return File(memoryStream, SvgMimeType); }

5. Replace the markup of the "Views\Home\Index.cshtml" file with the following one:

   MVC view that shows the chart SVG

   Copy Code

   @{ ViewData["Title"] = "Home Page"; } <div class="text-center"> <h1 class="display-4">Welcome</h1> <p>The following SVG chart is generated by the .NET Standard 2.0 host of NOV on the server. As a .NET Standard 2.0 library it doesn't depend on anything and can be used to generate server-side SVG charts on any platform - Windows and Linux. </p> <img src="@Url.Action("GenerateSvgChart", "Home")" /> </div>

The code above will generate the following web page:

1. Create a new ASP.NET Core MVC application.
2. Right-click "Dependencies" in Solution Explorer, select "Add Project Reference", click the "Browse" button and add the following NOV DLLs as references:
   • Nevron.Nov.Presentation
   • Nevron.Nov.Host.Server
   • Nevron.Nov.Barcode
   • Nevron.Nov.Text
   • Nevron.Nov.Diagram
3. Initialize NOV in the entry point of the MVC application - the "Program.cs" by adding the following code right before the app.Run() call:

   Initialize NOV	Copy Code
   // Apply your NOV license here. Skip this line of code while evaluating NOV NLicenseManager.Instance.SetLicense("license-key"); // Initialize NOV NNovApplicationInstaller.Install( Nevron.Nov.Barcode.NBarcodeModule.Instance, Nevron.Nov.Text.NTextModule.Instance, Nevron.Nov.Diagram.NDiagramModule.Instance );

4. Add the following action to the home controller - "Controllers\HomeController.cs". The drawing view will not reside in a document and thus it won't have any styles to inherit. That's why an UI theme should be applied - see the code after the "Apply theme" comment below.

   Generate a diagram SVG Image on the server

   Copy Code

   public IActionResult GenerateSvgDiagram() { NDrawingView drawingView = new NDrawingView(); // Apply theme NWindows10Theme theme = new NWindows10Theme(); drawingView.Document.StyleSheets.ApplyTheme(theme); // Create a simple diagram NPage page = drawingView.ActivePage; NBasicShapeFactory factory = new NBasicShapeFactory(); NShape shape1 = factory.CreateShape(ENBasicShape.Rectangle); shape1.SetBounds(100, 100, 150, 100); shape1.Text = "Rectangle"; page.Items.Add(shape1); NShape shape2 = factory.CreateShape(ENBasicShape.Circle); shape2.SetBounds(350, 250, 150, 100); shape2.Text = "Ellipse"; page.Items.Add(shape2); NRoutableConnector connector = new NRoutableConnector(); connector.UserClass = NDR.StyleSheetNameConnectors; connector.Text = "Connector"; page.Items.Add(connector); connector.GlueBeginToShape(shape1); connector.GlueEndToShape(shape2); // Export the diagram to SVG in a memory stream NDrawingVectorImageExporter exporter = new NDrawingVectorImageExporter(drawingView.Content); MemoryStream memoryStream = new MemoryStream(); exporter.SaveToStream(memoryStream, ENVectorImageFormat.Svg); // Serve the memory stream to the client memoryStream.Position = 0; return File(memoryStream, SvgMimeType); }

5. Replace the markup of the "Views\Home\Index.cshtml" file with the following one:

   MVC view that shows the diagram SVG

   Copy Code

   @{ ViewData["Title"] = "Home Page"; } <div class="text-center"> <h1 class="display-4">Welcome</h1> <p>The following SVG diagram is generated by the .NET Standard 2.0 host of NOV on the server. As a .NET Standard 2.0 library it doesn't depend on anything and can be used to generate server-side SVG charts on any platform - Windows and Linux. </p> <img src="@Url.Action("GenerateSvgDiagram", "Home")" /> </div>

The code above will generate the following web page:

If it is required to only generate the source code of an SVG image as string, then the following piece of code can be used:

NChartVectorImageExporter exporter = new NChartVectorImageExporter(chartView.Content);
NSvgDocument svgDocument = exporter.CreateSvg();
string svgSource = svgDocument.SaveToXml().SaveToString(false);

Export