More protection musings, For most of us, there is no point in protecting the SVG markup. The only value of the markup is that it generates a recognizable design and a behaviour, and that can be stolen by copying the results, rather than going through the huge trouble of understanding the markup details.
More I see SVG, less I understand why people want to 'protect' it. If we were talking about high-grade artistic images or clipart, I might would understand the reasoning. However, since most of us are talking about GUIs and web applications with serverside componetns, I simply do not see the point. The hardest and most expensive work in application development is getting the design and the usability right. The next hard bit is getting the backend to do what you want. The bit about painting the svg image with the svg markup is only interesting right now because none of us have access to good IDE's that do it for us. But let's not lose perspective... Nobody really is going to take a complex application and copy it by 'stealing' the svg. The markup part of the GUI is but a tiny fraction of the value of the application, and the fact that people need to know the tricks of getting the SVG to paint what they want to show is exactly what is currently wrong with SVG in commercial use. Take a look at how flex works... it uses an xml markup to declare application behaviour. The rest of this is handled by a backend that generates its own markup that nobody cares about. That's how it should be, and that's how it's going to have to be for SVG before SVG becomes a widespread application development markup. By the way, do not over-estimate encryption... PDF's encryption is only activated by readers that respect/implement the encryption. Other readers simply show the content. Ronan On Saturday 12 November 2005 03:04, Francis Hemsher wrote: > Hi Alastair, > Tossing ideas can be fun and creative. > Protecting SVG, I believe is a possible goal. I don't quite know how > to get there yet, but I'm working on it. I think this would be a > neat feature for SVG. > > I don't quite understand why dynamic SVG would be 'out the window' > by using your suggestion. After, all, the viewer just wants a > snapshot of what he sees in the browser. Can't we have some kinda > WYSIWYG in the print? > > > --- In [email protected], "Alastair Fettes" > > <[EMAIL PROTECTED]> wrote: > > Just tossing out ideas now. > > > > This could be a way of protecting your SVG content. Convert your > > SVG > > > graphics to PDF and encrypt, then return the output PDF. People > > can > > > view your SVG static graphics but not regain their source. This > > would > > > also lead to no cross-browser viewing issues. Of course dynamic > > SVG > > > would be out the window with this one I'm afraid. > > > > Alastair > > > > --- In [email protected], "Alastair Fettes" > > > > <[EMAIL PROTECTED]> wrote: > > > Write yourself a simply client side script and server > > application. To > > > > print get the user to click a button of some sort that calls a > > ECMA > > > > function that captures the current zoom level, what is visible - > > the > > > > current viewbox. Take this and send it over a redirect URL to > > your > > > > server side application. On the server side, have your > > > php/jsp/whatever take this viewbox and set it on a copy of the > > SVG > > > > server side (in a variable in your app) and have a pre-authored > > XSL-FO > > > > file that simply references the SVG. Then convert this to PDF > > with > > > > FOP and redirect the user to the PDF. > > > > > > Done. > > > > > > Cheers, > > > Alastair > > > > > > --- In [email protected], "Peter Kalev" > > <[EMAIL PROTECTED]> > > > wrote: > > > > Hi Francis, > > > > > > > > I have the following setup: IE6, ASV3, HTML page with embedded > > SVG, I > > > > > use JavaScript to zoom and pan then simply print the web page > > and the > > > > > result is a printed page of the area that was visible on the > > screen. > > > > > In order to avoid "squashing" of the svg image while printed, > > I use > > > > > absolute dimensions in the style sheets used for print media > > (11in x > > > > > 8.5in). Also make sure you set your printer to LANDSCAPE... > > > > > > > > Peter Kalev > > > > Senior Developer, > > > > SWF, LLC > > > > > > > > > > > > -----Original Message----- > > > > From: Francis Hemsher [mailto:[EMAIL PROTECTED] > > > > Sent: Wednesday, November 09, 2005 7:03 PM > > > > To: [email protected] > > > > Subject: [svg-developers] Today's Joke: Printing SVG in IE > > > > > > > > Hi, > > > > I would like the user to be able to print the segment of the > > SVG > > > image > > > > > > that happens to be displayed, after they zoom into a specific > > > > area. I'm > > > > > > sure not going to waste much effort in this, because I think > > it's > > > > > probably impossible at this time. Anyway, If anyone has a magic > > > > bullet > > > > > > to accomplish this, I will be so, so happy, and surprised. > > > > > > > > Franicis > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ----- > > > > To unsubscribe send a message to: > > > > [EMAIL PROTECTED] > > > > -or- > > > > visit http://groups.yahoo.com/group/svg-developers and > > click "edit my > > > > > membership" > > > > ---- > > > > Yahoo! Groups Links > > ----- > To unsubscribe send a message to: > [EMAIL PROTECTED] -or- > visit http://groups.yahoo.com/group/svg-developers and click "edit my > membership" ---- > > > > YAHOO! GROUPS LINKS > > > Visit your group "svg-developers" on the web. > > To unsubscribe from this group, send an email to: > [EMAIL PROTECTED] > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. -- Ronan Oger [EMAIL PROTECTED] www.vectoreal.com ...for scalable solutions. ------------------------------------- Switzerland Mobile: +41 76 527 3552 Fax: +41 44 274 2402 ------------------------ Yahoo! Groups Sponsor --------------------~--> Most low income households are not online. Help bridge the digital divide today! http://us.click.yahoo.com/cd_AJB/QnQLAA/TtwFAA/1U_rlB/TM --------------------------------------------------------------------~-> ----- To unsubscribe send a message to: [EMAIL PROTECTED] -or- visit http://groups.yahoo.com/group/svg-developers and click "edit my membership" ---- Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/svg-developers/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
