Re: [Inkscape-user] EPS Transparency support
On 3/1/07, bulia byak <buliabyak@...155...> wrote:
On 3/1/07, Nava Whiteford <nwhiteford@...2131...> wrote:
The best option appears to be outputing a pdf and using acroread to convert it to an eps, this then "flattens" the tranparencies, while keeping them in vector format. I was wondering if anyone else had a better (and open source) solution to this problem?
I think the best open source candidate for implementing this functionality is Ghostscript. Maybe it even already does something like it - try it out.
If I wanted to investigate adding support for transparency flattening to inkscape where would I start? Does inkscape export to eps natively or is an external tool used?
We export PS/EPS natively. And we really might benefit from adding a flattening code for that export. However, please consider that this code is likely to become quite complex, involving the use of boolean ops etc. (unless of course you will do the simple approach of rasterizing everything with transparency). Will you be able to code this all to a good level of quality, and test and maintain it afterwards?
I've a fair amount of experience with C++ (3 years undergrad + 3 years PhD etc.). Time as always is an issue.
More importantly, is Inkscape the best place for this code?
Agreed
We already export PDF with transparency which fully preserves the intent of the source. I think it is better to use a separate tool (Ghostscript) that specializes in "downgrading" this PDF into less capable formats, perhaps implementing various strategies for that. I think Ghostscript has much more expertise overall than Inkscape in PS/PDF.
I guess there are a number of places it could be implemented. Even perhaps as a standalone svg2flatsvg program? I'll get on to the Ghostscript mailing lists and see if anybody is working on this for pdf files.
Thanks for your prompt reply.
And if you are, or anybody else reading is, a Inkscape developer thanks for a great program!
nw
On 3/1/07, Nava Whiteford <nwhiteford@...2131...> wrote:
I guess there are a number of places it could be implemented. Even perhaps as a standalone svg2flatsvg program? I'll get on to the Ghostscript mailing lists and see if anybody is working on this for pdf files.
Thanks, and let us know what you find out.
And, while you are on the Ghostscript list, you might also try to ask them why they abandoned the SVG output driver? We (Inkscape) would love to use Ghostscript for PS/EPS/PDF import if only it were possible.
... maybe the cairo library will be able to generate that output as well in the near future.
Adib. ...
Nava Whiteford schrieb:
On 3/1/07, bulia byak <buliabyak@...155...> wrote:
On 3/1/07, Nava Whiteford <nwhiteford@...2131...> wrote:
The best option appears to be outputing a pdf and using acroread to convert it to an eps, this then "flattens" the tranparencies, while keeping them in vector format. I was wondering if anyone else had a better (and open source) solution to this problem?
I think the best open source candidate for implementing this functionality is Ghostscript. Maybe it even already does something like it - try it out.
If I wanted to investigate adding support for transparency flattening to inkscape where would I start? Does inkscape export to eps natively or is an external tool used?
We export PS/EPS natively. And we really might benefit from adding a flattening code for that export. However, please consider that this code is likely to become quite complex, involving the use of boolean ops etc. (unless of course you will do the simple approach of rasterizing everything with transparency). Will you be able to code this all to a good level of quality, and test and maintain it afterwards?
I've a fair amount of experience with C++ (3 years undergrad + 3 years PhD etc.). Time as always is an issue.
More importantly, is Inkscape the best place for this code?
Agreed
We already export PDF with transparency which fully preserves the intent of the source. I think it is better to use a separate tool (Ghostscript) that specializes in "downgrading" this PDF into less capable formats, perhaps implementing various strategies for that. I think Ghostscript has much more expertise overall than Inkscape in PS/PDF.
I guess there are a number of places it could be implemented. Even perhaps as a standalone svg2flatsvg program? I'll get on to the Ghostscript mailing lists and see if anybody is working on this for pdf files.
Thanks for your prompt reply.
And if you are, or anybody else reading is, a Inkscape developer thanks for a great program!
nw
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participants (3)
-
Adib Taraben -
bulia byak -
Nava Whiteford