Drawing Vector Images

Drawing a vector image is not supported at now. It needs to convert the drawn vector image to a raster before drawing.

Draw Vector Image

Using Aspose.Imaging for Java you can draw vector image on another vector image. With a few simple steps, you will be able to draw a vector image on another vector image.

• Create MemoryStream object
• Load a SVG image
• Rasterize SVG to PNG and write the result to a stream
• Load a PNG image from stream for further drawing
• Draw PNG image on existing SVG image
• Save the results

String dir = "images/";

try (ByteArrayOutputStream drawnImageStream = new ByteArrayOutputStream())
{
   // First, rasterize Svg to Png and write the result to a stream.
   
   try (SvgImage svgImage = (SvgImage)Image.load(dir + "asposenet_220_src02.svg"))
   {
	   SvgRasterizationOptions rasterizationOptions = new SvgRasterizationOptions();
	   rasterizationOptions.setPageSize(Size.to_SizeF(svgImage.getSize()));

	   PngOptions saveOptions = new PngOptions();
	   saveOptions.setVectorRasterizationOptions(rasterizationOptions);

	   svgImage.save(drawnImageStream, saveOptions);

	   // Now load a Png image from stream for further drawing.
	   try (RasterImage imageToDraw = (RasterImage)Image.load(new ByteArrayInputStream(drawnImageStream.toByteArray())))
	   {
		   // Drawing on the existing Svg image.
		   SvgGraphics2D graphics = new SvgGraphics2D(svgImage);

		   // Scale down the entire drawn image by 2 times and draw it to the center of the drawing surface.
		   int width = imageToDraw.getWidth() / 2;
		   int height = imageToDraw.getHeight() / 2;
		   Point origin = new Point((svgImage.getWidth() - width) / 2, (svgImage.getHeight() - height) / 2);
		   Size size = new Size(width, height);

		   graphics.drawImage(imageToDraw, origin, size);

		   // Save the result image
		   SvgImage resultImage = graphics.endRecording();
		   try
		   {
			   resultImage.save(dir + "asposenet_220_src02.DrawVectorImage.svg");
		   }
		   finally
		   {
			   resultImage.close();
		   }
	   }
   }
}