Hi -

I'm playing with the PdfExporter.Export() method and trying to get a feel for how I could stream the exported PDF to the client's browser. The current method signature is:

void Export(Diagram diagram, string filePath) 

I do not find it very flexible as it only provides a mechanism to store the exported PDF to a location on the web server. Hence, if I wanted to get this PDF back to the user's browser, I would have to:

1. Store the PDF on the web server
2. Then put in a buffer and stream that to the user
3. Delete the PDF from the web server (I would not want to clutter the directory with unnecessary/temp files)

Are there any plans to add an overload to the export API? Something along the lines of:

byte[] Export(Diagram diagram) 

Also - do you guys support SVG Image Response when ClientSideMode="ImageMap"? From your documentation:

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So, when I set ImageFormat="image/svg+xml", nothing gets rendered telling me that SVG MIME type/image response is not supported - is that correct?

Many thanks!

Stoyan - that would be absolutely fantastic! A non-interactive SVG mode sounds perfect. We basically are looking to utilize this in the iPad/mobile version of our web site. So, when a user zooms in (using finger swipe), an ImageMap (in a JPG/BMP/GIF format) starts to look blurred and loses it's quality, whereas an SVG rendering looks amazing even after a resize! 

How difficult/easy do you think that would be?

Thank you!

This version adds a read-only "SvgImage" client mode:
https://mindfusion.eu/_beta/netdiag_svg.zip

I hope that helps,
Stoyan

This build implements ZoomFactor in Svg mode:
https://mindfusion.eu/_beta/netdiag_svg.zip

I hope that helps,
Stoyan

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I can't get this to happen in my IE9, what browser are you using? The same scale is applied to both graphics and text, so if the text starts to stick out of the node, that should be a problem of the browser's SVG renderer. It might be drawing texts using the nearest integer font size, so perhaps it would look better if you set zoom factors that keep the scaled font size an integer.

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Scrollbars work fine for me. If you are testing this on an iPad, note that overflowed DIVs never display scrollabars in iOS Safari by design (to save screen space I think). Instead of scrollbars, you must use a two-finger swipe to scroll the DIV content. Also make sure your diagram.Bounds is large enough to fit the diagram content - the scroll range is set to the bounds size multiplied by zoom factor.

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You can request a pre-release build with the SVG feature at our support email address. There aren't any major changes being done at this time, so it should be pretty stable.

I hope that helps,
Stoyan

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This will happen if the page contains some other NetDiagram control in Canvas mode (e.g. a ShapeListBox) and the MS Ajax script file is not loaded. Since you can't use any control other than DiagramView in SVG mode, it will be better to remove it anyway.

I hope that helps,
Stoyan

Hi Stoyan -

In the latest build you made available, you have not only fixed the scrolling issue that I found in Chrome, but you have also corrected the zooming behavior - absolutely great work! The control is not working wonderful in "SvgImage" mode and the rendering looks fantastic!

Many thanks for your prompt responses and hard work!