Re: OT: Drawing lines in the browser

[Thomas Guettler]

Chris McCormick schrieb:
> On Tue, Aug 18, 2009 at 07:40:00AM -0700, Ian McDowall wrote:
>> On Aug 18, 8:53 am, Thomas Guettler  wrote:
>>> Hi,
>>>
>>> this is offtopic: How can you draw lines in a (django) web application?
>>>
>>> I think you need to use flash or java to do it. I googled for it, but found 
>>> only beta
>>> quality projects.
>>>
>>> Has anyone experience with this?
>> Depends on what type of line.  It is technically possible to use SVG.
>> You can embed an SVG image in HTML and then draw lines (or circles
>> etc.) in it. The SVG is just XMl and Django's templating works fine
>> for that.  There are some technical catches about the type of the
>> document and namespaces but I can provide a worked example. The
>> drawback is that not all browsers support SVG well. This appears to
>> work well in recent versions of Firefox but not well in IE.
> 
> Even better is the  element and it has good coverage on recent 
> browsers
> with the help of explorercanvas  for
> Internet Explorer, although the drawing must be done dynamically with
> javascript.   is an example of a library which
> uses the  element to draw graphs.

Thank you very much. I thought you can't do it with JS. I will try this.

  Thomas

-- 
Thomas Guettler, http://www.thomas-guettler.de/
E-Mail: guettli (*) thomas-guettler + de

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Re: OT: Drawing lines in the browser

[Chris McCormick]

On Tue, Aug 18, 2009 at 07:40:00AM -0700, Ian McDowall wrote:
> On Aug 18, 8:53 am, Thomas Guettler  wrote:
> > Hi,
> >
> > this is offtopic: How can you draw lines in a (django) web application?
> >
> > I think you need to use flash or java to do it. I googled for it, but found 
> > only beta
> > quality projects.
> >
> > Has anyone experience with this?
> 
> Depends on what type of line.  It is technically possible to use SVG.
> You can embed an SVG image in HTML and then draw lines (or circles
> etc.) in it. The SVG is just XMl and Django's templating works fine
> for that.  There are some technical catches about the type of the
> document and namespaces but I can provide a worked example. The
> drawback is that not all browsers support SVG well. This appears to
> work well in recent versions of Firefox but not well in IE.

Even better is the  element and it has good coverage on recent browsers
with the help of explorercanvas  for
Internet Explorer, although the drawing must be done dynamically with
javascript.   is an example of a library which
uses the  element to draw graphs.

Chris.

---
http://mccormick.cx

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Re: OT: Drawing lines in the browser

[Ian McDowall]

On Aug 18, 8:53 am, Thomas Guettler  wrote:
> Hi,
>
> this is offtopic: How can you draw lines in a (django) web application?
>
> I think you need to use flash or java to do it. I googled for it, but found 
> only beta
> quality projects.
>
> Has anyone experience with this?
>
>   Thomas
>
> --
> Thomas Guettler,http://www.thomas-guettler.de/
> E-Mail: guettli (*) thomas-guettler + de

Depends on what type of line.  It is technically possible to use SVG.
You can embed an SVG image in HTML and then draw lines (or circles
etc.) in it. The SVG is just XMl and Django's templating works fine
for that.  There are some technical catches about the type of the
document and namespaces but I can provide a worked example. The
drawback is that not all browsers support SVG well. This appears to
work well in recent versions of Firefox but not well in IE.

Ian McDowall

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Re: OT: Drawing lines in the browser

[Chris Withers]

Thomas Guettler wrote:
> Hi,
> 
> this is offtopic: How can you draw lines in a (django) web application?
> 
> I think you need to use flash or java to do it. I googled for it, but found 
> only beta
> quality projects.
> 
> Has anyone experience with this?

Depends on why you want to draw lines... If it's for graphs and the 
like, just use matplotlib and generate the graphs on the server as .png 
or .pdf :-)

Chris

-- 
Simplistix - Content Management, Batch Processing & Python Consulting
- http://www.simplistix.co.uk

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Re: OT: Drawing lines in the browser

[Kenneth Gonsalves]

On Tuesday 18 Aug 2009 1:23:08 pm Thomas Guettler wrote:
> this is offtopic: How can you draw lines in a (django) web application?
>
> I think you need to use flash or java to do it. I googled for it, but found
> only beta quality projects.
>
> Has anyone experience with this?

first hit in google gave me this:
http://jsdraw2d.jsfiction.com/
-- 
regards
kg
http://lawgon.livejournal.com

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OT: Drawing lines in the browser

[Thomas Guettler]

Hi,

this is offtopic: How can you draw lines in a (django) web application?

I think you need to use flash or java to do it. I googled for it, but found 
only beta
quality projects.

Has anyone experience with this?

  Thomas

-- 
Thomas Guettler, http://www.thomas-guettler.de/
E-Mail: guettli (*) thomas-guettler + de

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