Write to SVG

wrote the following code to produce text. This is a module in a MVC controller which is called from a webpage that sends all of those parameters using ajax and renders back to a Canvas element. I have two problems with the following approach:

• Using PdfWriter (which is the only vector based graphic interface) so I need to convert it to SVG before sending back to Canvas

• Writes to an actual physicall file which makes the process slow, would like to know if I can do this in a memory stream or any other similar in-memory data structure

Is there any way to improve this approach?

var aFont = "Arial";
var aFontSize = 24f;
var aText = "Graphics Mill by Aurigma";
var aColor = System.Drawing.Color.Blue;
 
System.Drawing.RectangleF blackBox;
 
var dpi = 150f;
using (var bitmap = new Bitmap(1, 1, PixelFormat.Format24bppRgb))
{
    bitmap.DpiX = dpi; 
    bitmap.DpiY = dpi;
    using (var lGraphics = bitmap.GetAdvancedGraphics())
    {
        var lFont = lGraphics.CreateFont(aFont, aFontSize);
        var lBrush = new SolidBrush(aColor);
        var lText = new PlainText(aText, lFont, lBrush);
        lText.Position = new System.Drawing.PointF(0f, 0f);
        blackBox = lText.GetBlackBox();
    }
}
 
 
using (var lPdfWriter = new PdfWriter(@"c:\eps\out.pdf"))
using (var lGraphics = lPdfWriter.GetGraphics())
{
    lPdfWriter.AddPage((int)Math.Ceiling(blackBox.Width), (int)Math.Ceiling(blackBox.Height), dpi, dpi);
    {
        var lFont = lGraphics.CreateFont(aFont, aFontSize);
        var lBrush = new SolidBrush(aColor);
        var lText = new PlainText(aText, lFont, lBrush)
        {
            Position = new System.Drawing.PointF(0, - blackBox.Y)
        };
        lGraphics.DrawText(lText);
    }
}

Originally Posted by: Fedor

Quote:

Using PdfWriter (which is the only vector based graphic interface) so I need to convert it to SVG before sending back to Canvas

Do you need to send it to HTML5 Canvas or to Ajax Vector Objects Canvas? Can you send a raster image instead of SVG?

I need to send a bunch of vectors as user will be able to manipulate it and then send this commands to a cutter. So 2nd option is the one I'm looking for, Ajax Vector Objects Canvas.

Edited by moderator Monday, December 1, 2014 4:46:57 AM(UTC)  | Reason: Not specified

Originally Posted by: Fedor

Quote:

I need to send a bunch of vectors as user will be able to manipulate it and then send this commands to a cutter. So 2nd option is the one I'm looking for, Ajax Vector Objects Canvas.

Well, it seems you need to recreate the graphics using the API of Ajax Vector Objects. I don't see a robust way to use the same API for writing of PDF file and building of Ajax Vector Objects' graphics.

Probably you could build your graphics using Ajax Vector Objects and than export to PDF.

http://www.graphicsmill.com/doc...and-rendering-canvas.htm

If it doesn't fit your needs please describe your requirements in details. Probably I could offer you some workaround.

Well, I'm not interested in PDF at all. I'm just using it beacuse it's the only interface that I've found for creating text and that would output vectors, if I had a SvgWritter I would have used it with a memory stream and send back to Canvas.

Does it make sense?

But it looks like CurvedText is the only option and I'm very interested in all the other effects like brige, is that possible?

Can you let me know which is the best to accomplish my requirement from the performance point of view? Saving a PDF locally and using a 3rd party tool for converting to SVG, reading the file and sending SVG commands back to canvas is very slow.

Originally Posted by: enicolasgomez

Awesome, that looks exactly what I'm looking for.

But it looks like CurvedText is the only option and I'm very interested in all the other effects like brige, is that possible?

We have discussed it with our developers. We will implement in January 2015.