November 2015 - Inkscape Devel

New Potrace dependency
by Alex Valavanis 29 Nov '15

29 Nov '15

Hi All, Any objections if I go ahead with this merge? https://code.launchpad.net/~valavanisalex/inkscape/fix-1156664 It will introduce a soft dependency on an external copy of libpotrace. It will still build without the external library, but without the trace bitmap/flood tools. Windows Devlibs will need to be updated separately. Cheers, AV

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Problem with paths
by Jabiertxo Arraiza Cenoz 27 Nov '15

27 Nov '15

Hi to all. Working with a function that split into subpaths all self crossings of a path, I throw a LPE exception in path.portion I call it with a value for example "path.portion(0,2.9345)" and path size == 4. I think I dont get any continuity problems when creating a portion, anyway it happends, also if active setStitching to the path Here are the function: https://inkscape.org/en/gallery/item/7011 I comment in the code where the exception happens "std::cout << "EXCEPTON HERE\n";" Next logs to this line don't show if exception. Any help is welcome, cheers, Jabier.

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Artivity patch for Inkscape
by Sebastian Faubel 27 Nov '15

27 Nov '15

Hello everybody, a few months ago I contacted you the project we're currently doing with the University of the Arts, London. Our 'Artivity' project aims to produce an open source activity tracking platform similar to Zeitgeist. However, we do not only capture high level events such as 'created file' or 'visited website' but also store provenance data about how a document was created and which resources were used in the process. We don't have an official website yet, but if you're interested: here's our repository [0] and a recent article about the current state of the art [1]. The project is still in a rather early stage, but the platform has matured to a point where we think it's worth spreading the word. I asked if it was possible to write extensions for Inkscape in C++. Since this does not seem to be possible at the moment, I want to ask you if you accept a patch to integrate our Artivity extension upstream. I appended a patch file to this e-mail. Please have a look at it and tell us what we have to change in order for you to accept it. The patch is done against the current release tarball of Inkscape (v0.91). You can apply the patch by unpacking the tarball in a directory and the following command: patch -p0 < inkscape-0.91-1artivity0.patch Our 'extension' is only compiled when Inkscape is configured with the option '--enable-artivity'. So the build should behave as normal when configured without this option. If you want to build the extension you will need libartivity [2] installed on your system. The only dependency for building the library is libcurl. So you'll need to install the libcurl development headers. Everything else should be pretty straight forward. I'd really love to have the Artivity extension to be a dynamically loaded plugin. If there's any progress on defining a plugin API for native C++ extensions I'll volunteer in implementing it. I am looking forward to your comments. With best regards, Sebastian [0] https://bitbucket.org/semiodesk/artivity [1] http://www.semiodesk.com/2015/11/23/artivity-available-windows-mac/ [2] https://bitbucket.org/semiodesk/artivity/downloads/libartivity-0.8.10.tar.gz *Semiodesk GmbH | *Werner-von-Siemens-Str. 6 Geb. 15k, 86159 Augsburg, Germany | Phone: +49 821 8854401 | Fax: +49 821 8854410 | www.semiodesk.com This e-mail message may contain confidential or legally privileged information and is intended only for the use of the intended recipient(s). Any unauthorized disclosure, dissemination, distribution, copying or the taking of any action in reliance on the information herein is prohibited. E-mails are not secure and cannot be guaranteed to be error free as they can be intercepted, amended, or contain viruses. Anyone who communicates with us by e-mail is deemed to have accepted these risks. Semiodesk GmbH is not responsible for errors or omissions in this message and denies any responsibility for any damage arising from the use of e-mail. Any opinion and other statement contained in this message and any attachment are solely those of the author and do not necessarily represent those of the company.

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User account for Inkscape Wiki
by Eduard Braun 26 Nov '15

26 Nov '15

Hi all, I'd like to request a user account for http://wiki.inkscape.org/ I noticed documentation on INX parameters <http://wiki.inkscape.org/wiki/index.php/INX_Parameters> is quite outdated and I want to update it. Best Regards, Eduard

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Inkscape's software design
by Jorge Lopez 26 Nov '15

26 Nov '15

Hello, I'm studying a Master Degree in Computer Engineering and we have to make an article about an Open Source program (Inkscape in my case). In this article we are suposed to interview some developers in order to know more about software design in the project they are working on, so I'm looking for some people willing to answer some simple questions about software design on Inkscape's development. If you are interested, please contact me ( jorgeludc@...400... ). Thanks in advance!

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Fwd: Save in JPG files
by Bruno de Campos 23 Nov '15

23 Nov '15

Hi, I'm using Inkscape and I realize that the program does not save in .jpg format. This is kinda disappointing because I have to open another program to save my file in a proper format. Do you have any tips or extensions or any updates that I could use to save in jpg format? PS.: I'm using Version 0.91 Thanks in advance for your attention, -- Bruno de Campos

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Offset LPE
by Jabiertxo Arraiza Cenoz 21 Nov '15

21 Nov '15

Hi to all, working on offset LPE by "accident" y discover the way to remove ovelaps, so the code on evenodd mode is ok. Now I need to handle correcly nonzero cases and make some tweaks to the knot handler. Krzysztof, Liam sorry for the noise and thanks for your works! Cheers, Jabier.

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LPE: Use sigc++ from PathParam to modify another Param
by Papoj Thamjaroenporn 21 Nov '15

21 Nov '15

Dear Inkscape-devel, I would like to find a way to trigger a change from PathParam and change another Param in the same LPE effect. What is the correct way of doing this? What I have attempted: I noticed that PathParam already provides a bunch of useful signals, like signal_path_pasted (when a new path has been pasted in placed of the existing path in PathParam). So I just set up in my LPE effect like: myPathParam.signal_path_pasted.connect( sigc::mem_fun(*this, &LPEWrinkleStretch::triggerAChangeInPeakPointArrayParam) ); And in my own method, I just modify another WrDmPeakPointArrayParam with set_and_write_new_value(). Nothing fancy here. Although I have made sure that the change happened and the resulting change was what I expected, this notification-callback approach seems to break the LPE entirely: now interacting with anything in the effect afterward (moving other unrelated handles, changing values, etc) will not update the LPE at all, although the doEffect() method is still called constantly. So obviously, I am doing something wrong here. I have noticed that there is another effect, lpe-bspline, that makes use of the callback mechanism to update the effect. I understood the basic mechanism: you process path effects normally, create a result in SVG format in text, save that text onto the internal XML “Repr” directly, and then you provide some sort of save state for undoing. However, I am not sure how to do this for another Param (not the resulting path from the LPE effect). Do I write my own version of saving such param into the internal XML tree directly? I don’t really have a new widget, but an update should be triggered after clicking on “Paste path” button in PathParam, so do I have to override newWidget() method? Can someone also explain to me how DocumentUndo::done() works (what the variables are)? Thank you for always being supportive and helpful. Regards, _______________________ Papoj "Hua" Thamjaroenporn papoj@...3117...

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TSL errors for LP
by Brynn 20 Nov '15

20 Nov '15

Hi Friends, I'm having trouble connecting to Launchpad today. (1 success out of 8 tries :-( ) The error says "Secure Connection Failed" with option to report it to Mozilla. Info: https://support.mozilla.org/en-US/kb/tls-error-reports "If you experience this problem, contact the owners of the website and ask them to update their TLS version to a version that is still current and still secure." Has this already been reported to LP? If not, how can I do that? There doesn't appear to be any way to allow the connection to go through anyway, but I'm still investigating. Maybe have to use IE? Thanks for your help :-) brynn

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Union PathVector
by Jabier Arraiza 20 Nov '15

20 Nov '15

Hi to all. I want to make a pathvector joined with itself like Inkscape do whith only a path selected, with subpats and in non-zero fill rule. I look to Krzysztof code with boolops but it handle it with diferent pathvectors, not with the same. If anybody can point me on a direction, his help are welcome. All the best, Jabier.

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