Drawing Raster Images on Vector Images

Aspose.Imaging for .NET supports drawing Raster(JPEG, GIF, TIFF, BMP) images to Vector(SVG, EMF, WMF) images. Raster images are based on pixels and thus lose clarity when scaled, while Vector based images can be scaled indefinitely without degrading quality.

Draw Raster Image on SVG

Using Aspose.Imaging for .NET you can draw raster image on SVG. With a few simple steps, you will be able to draw an existing raster image on a vector file.

• Load a raster image using the factory method Load exposed by Image class.
• Load a SVG image
• Draw a rectangular part of the raster image within the specified bounds of the vector image
• Save the results

using Aspose.Imaging;
using Aspose.Imaging.Brushes;
using Aspose.Imaging.FileFormats.Svg;
using Aspose.Imaging.ImageOptions;
using Aspose.Imaging.Shapes;
using Aspose.Imaging.Sources;
using System;
using System.IO;

string templatesFolder = @"c:\Users\USER\Downloads\templates\";
string dataDir = templatesFolder;

// Load the image to be drawn
using (RasterImage imageToDraw = (RasterImage)Image.Load(dataDir + "template.png"))
{
    // Load the image for drawing on it (drawing surface)
    using (SvgImage canvasImage = (SvgImage)Image.Load(dataDir + "template.svg"))
    {
        // Drawing on an existing Svg image.
        Aspose.Imaging.FileFormats.Svg.Graphics.SvgGraphics2D graphics = new Aspose.Imaging.FileFormats.Svg.Graphics.SvgGraphics2D(canvasImage);

        // Draw a rectagular part of the raster image within the specified bounds of the vector image (drawing surface).
        // Note that because the source size is equal to the destination one, the drawn image is not stretched.
        graphics.DrawImage(
            new Rectangle(0, 0, imageToDraw.Width, imageToDraw.Height),
            new Rectangle(67, 67, imageToDraw.Width, imageToDraw.Height),
            imageToDraw);

        // Save the result image
        using (SvgImage resultImage = graphics.EndRecording())
        {
            resultImage.Save(dataDir + "result.svg");
        }
    }
}

File.Delete(dataDir + "result.svg");

Draw Raster Image on EMF

Using Aspose.Imaging for .NET you can draw raster image on EMF. With a few simple steps, you will be able to draw an existing raster image on a vector file.

• Load a raster image using the factory method Load exposed by Image class.
• Load a EMF image
• Draw a rectangular part of the raster image within the specified bounds of the vector image
• Save the results

using Aspose.Imaging;
using Aspose.Imaging.Brushes;
using Aspose.Imaging.FileFormats.Emf;
using Aspose.Imaging.FileFormats.Emf.Graphics;
using Aspose.Imaging.FileFormats.Svg;
using Aspose.Imaging.ImageOptions;
using Aspose.Imaging.Shapes;
using Aspose.Imaging.Sources;
using System;
using System.IO;

string templatesFolder = @"c:\Users\USER\Downloads\templates\";
string dataDir = templatesFolder;

// Load the image to be drawn
using (RasterImage imageToDraw = (RasterImage)Image.Load(dataDir + "template.png"))
{
    // Load the image for drawing on it (drawing surface)
    using (EmfImage canvasImage = (EmfImage)Image.Load(dataDir + "template.emf"))
    {
        EmfRecorderGraphics2D graphics = EmfRecorderGraphics2D.FromEmfImage(canvasImage);

        // Draw a rectagular part of the raster image within the specified bounds of the vector image (drawing surface).
        // Note that because the source size is not equal to the destination one, the drawn image is stretched horizontally and vertically.
        graphics.DrawImage(
            imageToDraw,
            new Rectangle(67, 67, canvasImage.Width, canvasImage.Height),
            new Rectangle(0, 0, imageToDraw.Width, imageToDraw.Height),
            GraphicsUnit.Pixel);

        // Save the result image
        using (EmfImage resultImage = graphics.EndRecording())
        {
            resultImage.Save(dataDir + "result.emf");
        }
    }
}

File.Delete(dataDir + "result.emf");

Draw Raster Image on WMF

Using Aspose.Imaging for .NET you can draw raster image on WMF. With a few simple steps, you will be able to draw an existing raster image on a vector file.

• Load a raster image using the factory method Load exposed by Image class.
• Load a WMF image
• Draw a rectangular part of the raster image within the specified bounds of the vector image
• Save the results

using Aspose.Imaging;
using Aspose.Imaging.FileFormats.Wmf;
using Aspose.Imaging.FileFormats.Wmf.Graphics;
using System.IO;

string templatesFolder = @"c:\Users\USER\Downloads\templates\";
string dataDir = templatesFolder;

// Load the image to be drawn
using (RasterImage imageToDraw = (RasterImage)Image.Load(dataDir + "template.png"))
{
    // Load the image for drawing on it (drawing surface)
    using (WmfImage canvasImage = (WmfImage)Image.Load(dataDir + "template.wmf"))
    {
        WmfRecorderGraphics2D graphics = WmfRecorderGraphics2D.FromWmfImage(canvasImage);

        // Draw a rectagular part of the raster image within the specified bounds of the vector image (drawing surface).
        // Note that because the source size is not equal to the destination one, the drawn image is stretched horizontally and vertically.
        graphics.DrawImage(
            imageToDraw,
            new Rectangle(67, 67, canvasImage.Width, canvasImage.Height),
            new Rectangle(0, 0, imageToDraw.Width, imageToDraw.Height),
            GraphicsUnit.Pixel);

        // Save the result image
        using (WmfImage resultImage = graphics.EndRecording())
        {
            resultImage.Save(dataDir + "result.wmf");
        }
    }
}

File.Delete(dataDir + "result.wmf");