Extracting images from pptx using xslf discarding charts.

[Anil pawar <mr...@gmail.com>]

I am using xslf to convert pptx to images but unable to convert slides which contain charts.
After conversion i can see taht all charts are discarded.
I had added a question on https://stackoverflow.com/ also.
please help.

link:
https://stackoverflow.com/questions/44152261/extracting-images-from-pptx-with-apache-poi-discarding-charts

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Re: Extracting images from pptx using xslf discarding charts.

[Anil pawar <mr...@gmail.com>]

So If i want to add this feature then where should i concentrate in code.

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Re: Extracting images from pptx using xslf discarding charts.

[Andreas Beeker <ki...@apache.org>]

just a few thoughts about the (render) implementation:
1. check if the current xmlbeans cover the chart schema in the needed areas
2. parse the references and build a chart data model
3. map data model to a existing chart api
    see alternatives of JFreeChart (which can't be used because of LGPL license) [1]
    BSD & apache license are ok [2]
4. provide a delegate renderer for the sl common drawing code

I guess 2. is quite complex.

Andi

[1] http://www.jfree.org/jfreechart/faq.html#FAQ13
[2] https://www.apache.org/legal/resolved.html
 
On 6/16/17 8:11 PM, Greg Woolsey wrote:
> I'm not familiar with the XSLF code at all, but charts are common between
>  cExcel and PowerPoint files - the same XML elements in both, I think, so a
> common codebase for rendering as an image would likely be appropriate.
> Others may have more/better ideas on how best to organize it.
>

Re: Extracting images from pptx using xslf discarding charts.

[Greg Woolsey <gr...@gmail.com>]

I'm not familiar with the XSLF code at all, but charts are common between
Excel and PowerPoint files - the same XML elements in both, I think, so a
common codebase for rendering as an image would likely be appropriate.
Others may have more/better ideas on how best to organize it.

On Fri, Jun 16, 2017 at 7:12 AM Anil pawar <mr...@gmail.com> wrote:

>
>
> On 2017-06-16 21:48 (+0530), Greg Woolsey <gr...@gmail.com> wrote:
> > Charts are stored as a definition, not an image, and poi doesn't
> currently
> > have support for rendering them.
> >
> > On Fri, Jun 16, 2017, 05:10 Anil pawar <mr...@gmail.com> wrote:
> >
> > > I am using xslf to convert pptx to images but unable to convert slides
> > > which contain charts.
> > > After conversion i can see taht all charts are discarded.
> > > I had added a question on https://stackoverflow.com/ also.
> > > please help.
> > >
> > > link:
> > >
> > >
> https://stackoverflow.com/questions/44152261/extracting-images-from-pptx-with-apache-poi-discarding-charts
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: dev-unsubscribe@poi.apache.org
> > > For additional commands, e-mail: dev-help@poi.apache.org
> > >
> > >
> > So if i want to add this feature then where should i concentrate in code.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@poi.apache.org
> For additional commands, e-mail: dev-help@poi.apache.org
>
>

Re: Extracting images from pptx using xslf discarding charts.

[Anil pawar <mr...@gmail.com>]

On 2017-06-16 21:48 (+0530), Greg Woolsey <gr...@gmail.com> wrote: 
> Charts are stored as a definition, not an image, and poi doesn't currently
> have support for rendering them.
> 
> On Fri, Jun 16, 2017, 05:10 Anil pawar <mr...@gmail.com> wrote:
> 
> > I am using xslf to convert pptx to images but unable to convert slides
> > which contain charts.
> > After conversion i can see taht all charts are discarded.
> > I had added a question on https://stackoverflow.com/ also.
> > please help.
> >
> > link:
> >
> > https://stackoverflow.com/questions/44152261/extracting-images-from-pptx-with-apache-poi-discarding-charts
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: dev-unsubscribe@poi.apache.org
> > For additional commands, e-mail: dev-help@poi.apache.org
> >
> >
> So if i want to add this feature then where should i concentrate in code.

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Re: Extracting images from pptx using xslf discarding charts.

[Greg Woolsey <gr...@gmail.com>]

Charts are stored as a definition, not an image, and poi doesn't currently
have support for rendering them.

On Fri, Jun 16, 2017, 05:10 Anil pawar <mr...@gmail.com> wrote:

> I am using xslf to convert pptx to images but unable to convert slides
> which contain charts.
> After conversion i can see taht all charts are discarded.
> I had added a question on https://stackoverflow.com/ also.
> please help.
>
> link:
>
> https://stackoverflow.com/questions/44152261/extracting-images-from-pptx-with-apache-poi-discarding-charts
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@poi.apache.org
> For additional commands, e-mail: dev-help@poi.apache.org
>
>