June 2015 - Inkscape Devel - Inkscape Mailman

gears Path effect
by Mark Schafer 05 Jul '15

05 Jul '15

I just saw this in this video. Somehow I did not notice it before :( - https://www.youtube.com/watch?v=DTbYHmQkY9w - generates a meshing gear at each point on the path and remains editable (of course) Is it possible for me to redirect its "gear" call to the new gears plugin here: https://github.com/jnweiger/inkscape-gears-dev Is it envisaged in the future to allow this to be python scriptable (I assume its all embedded c at the moment) ?

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Boolops progress
by Krzysztof Kosiński 04 Jul '15

04 Jul '15

There is a new toy "boolops-new" in 2Geom's source repository - it computes an union of two paths using my new boolops code based on the Greiner-Hormann algorithm. What works: - Union - Intersection - Adding difference and XOR is trivial - Linear and Bezier segments of arbitrary degree - Code is fairly clean and understandable - Reasonably good performance, even though there are very few optimizations What remains to be done: - Could be simplified a bit and better documented. - Intersection procedures for arc-arc and arc-Bezier cases. Currently they throw UnimplementedError. - Handling of degeneracies and second-order intersections. I have this mostly planned out, except for a few nasty cases with overlapping Bezier segments. - Add &, |, / operators to PathVector. I think / will be better than minus for set subtraction. - Function that converts a nonzero winding pathvector to even-odd winding pathvector with the same filled areas. It's a lot easier to do this conversion than it is to do Booleans on nonzero winding fills. I observed no crashes or hangs, though when two pathvectors overlap exactly, some paths can be skipped in the output. Since this code is already a lot better than the old attempts present in 2Geom (path-intersection.h, shape.h, region.h and the like), I'm going to remove them to reduce cruft. Regards, Krzysztof

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Fwd: Website Feedback
by Martin Owens 29 Jun '15

29 Jun '15

FYI ---------- Forwarded message ---------- From: Anonymous User <unknown@...1478...> Date: 29 June 2015 at 13:14 Subject: Website Feedback To: Martin Owens <doctormo@...400...> Coding & Technology Workshops This session is aimed at introducing youth to Coding and Technology, and will help to develop students’ computational and critical thinking skills and show them how to create, not simply use, new technologies. Computer Science is foundational for all students, regardless of their ultimate field of study or occupation. With the support from serval national partners the Coding Day would begin with a Plenary, featuring welcome remarks from technologist, followed by an engaging panel discussion, engineering and science professionals, current STEM students and other Youth Leadership Summit STEM event sponsors. The discussion will center on the importance of Coding, the various ways coding can be made more accessible to young people, the benefits of a career in the field and what students can do to learn to code and pursue a career in that field. The Plenary would be following by hands-on, topical workshops, with a focus on Coding, Technology and STEM. Each workshop will accommodate about 30 students, and could be targeted by age or gender (i.e.: middle school age, girls-only, rising college freshmen, etc.) To date, we have Best Buy and Intel delivering content however, we NEED more workshops. Do you have any Professionals and/or Community Outreach program that would be able to deliver coding/technology workshops to our students? Kaelin Hernandez Summer Temp, Education & Youth Development National Urban League | 120 Wall Street, 7th Floor | New York, NY 10005 O: 212-558-5409|E: khernandeztemp@...3251...

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measurement tool - save measurement to drawing
by paul sorenson 27 Jun '15

27 Jun '15

I would find it very useful if there was a hotkey to "save" the measurement tool as part of a drawing. Ie I use the measurement tool in the usual way and when I have it positioned where I want it, hit a key and the measurement is drawn into the diagram. Maybe one key for angle, one for distance (and one for both). cheers

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Merge Request: When exactly two nodes are selected show the angle of the corresponding line segment
by Alexander Brock 24 Jun '15

24 Jun '15

Hi, I needed to measure a lot of angles and I thought it would be nice if Inkscape would show me the angle of the connecting line (relative to the x-axis) of two nodes when I select exactly two nodes. So I implemented it and made a merge request: https://code.launchpad.net/~inkscape+alexander/inkscape/angle/+merge/261397 Opinions? Alexander

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Trunk glitch? and guide lines
by Robert McKay 24 Jun '15

24 Jun '15

Monday 22 June - 10:08:27 PM Don't really know how to communicate with the developer group(s) on these user boards, which I do glance at now and then, and being in the midst of 'the important work' I must learn more about that a little later. Though a new and often searching user, I do already very (very) much appreciate this Inkscape thing, and want to assist in the developments to whatever extent I might. Two things so far: Loaded in the Trunk version on the 20th to see what that was like, and then put the stable version back in today. (Mint 17 operating system) Changed back for just the one reason really, the Trunk no longer contained 'delete all guides' in the edit menu. I use the 'objects to guides' quite a bit to guestimate reasonable seeming perspectives, particularly when the piece is simple enough not to bother with a paper drawing or a Sketchup model first. (Those sudden nests of guide lines, only loosely related to any real vanishing points, sew confusion onto next uses unless I can keep dismissing them wholesale.) ... That 3D emulator-or-possibly-actual-tool, that is there among the available functions; I've had to tag that one for some future study session. Speaking of the guides, though the labelling and information options are pretty darned useful for getting precise with, it would also be good to be able to push guides around their rotation points by eye, as well as with the deg. entry. (Even though that protractor tool is a completely fine little gem.) ...*Wait*, let me try something here....OH MY GOD, control shift gets little rotation arrows showing and going with stepwise changes, and then shift by itself allows for smooth rotation.*Inkscape Are The Best!* I also think it would be useful to be able to pin different groups of guides to given layers. - Probably also a feature already available and awaiting discovery eh? One last other thing to mention, very minor really, about that Trunk version. A single straight line will not be blurred unless it is manipulated first, though even a very subtle bending was enough to do the trick. As arrow-straight lines are pretty much a wierd and overpowering spice within the 'loosley suggestive' styles of drawing anyway, I found this one by fluke. And it was late at night, and I was tired, so, I am not really sure... The line vanished and an empty selection box grew around where it had been as I increased the blur number. (drawing effects such as pencil and sketch seemed disabled too, but by then I had made a decision and went to bed.) Thanks again folks, for this Inkscape thing. It's a starred line-item on my volluntary payments wishlist.

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bug report: path omitted in rendering to pdf
by Blahde Blah 23 Jun '15

23 Jun '15

V wrote: >Increase the stroke width, or remove the stroke altogether to work >around a cairo bug (cairo >= 1.12.4) which omits objects with small >stroke-widths when exporting to PDF: Thanks very much. That workaround did it for me. ____________________________________________________________ FREE 3D MARINE AQUARIUM SCREENSAVER - Watch dolphins, sharks & orcas on your desktop! Check it out at http://www.inbox.com/marineaquarium

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Inkscape Tools and Functions Interactive Treemap
by C R 23 Jun '15

23 Jun '15

Hey everyone. I'm presently developing a system to make it easy to treemap hotkeys and functions of a software package. I'll be posting the code on github and offering it under the GPL. As an initial development example, I'm using Inkscape. I have a mockup of (kinda sorta) what the resulting page will look like (all code will be HTML5 and javascript). The sample is here: http://www.opendesignstudio.org/inkscape/samples/inkscape_tools_treemap_moc… I was wondering what everyone thought of the idea, and the organisation of the information with regards to inkscape tool functions. Any additions or changes to the information? Additionally, I'll be providing the construction files for all the alternative inkscape icons in this chart to anyone who would like to use them, for whatever purpose. After I do a complete keyset of Inkscape in this manner, I'll be doing one for GIMP, Scribus, and *gulp* Blender. I'd also like to add a "quiz" feature that pops up flashcards of the keys to use in a sort of hotkey-calisthenics program. All this is to make people faster at using Inkscape and other software. Thanks for your input! -C

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bug report: path omitted in rendering to pdf
by Blahde Blah 23 Jun '15

23 Jun '15

Hi, all, I'm a happy, long-time user of inkscape. Thanks for all your efforts over the years on this wonderful open-source project. This email is to report a bug in pdf rendering, which occurs in both the stable version and, as shown below, in the version compiled from the latest sources. $ /usr/local/bin/inkscape --version Inkscape 0.91+devel r14210 (Jun 22 2015) $ /usr/local/bin/inkscape --export-pdf=b.pdf b.svg $ ls -l b.pdf -rw-r--r-- 1 bcrowell bcrowell 857 Jun 23 05:42 b.pdf The file b.svg, which I've pasted into this email below, contains a single object, which is a moderately complex filled path. When I export to pdf, the resulting file does not contain any rendering of the object (as you can see from its small size in the listing above). Rendering to a bitmap works correctly, and rendering of filled paths does normally work, of course. The bug seems to depend on something specific about this particular path. I don't know whether this is a bug in inkscape or in cairo. The version of cairo on my system appears to be 1.13.0, based on the existence of this file: /var/cache/apt/archives/libcairo2_1.13.0~20140204-0ubuntu1.1_amd64.deb Regards, Ben ================================== b.svg ========================================================= <?xml version="1.0" encoding="UTF-8" standalone="no"?>  <svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:cc="http://creativecommons.org/ns#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" sodipodi:docname="b.svg" inkscape:version="0.48.4 r9939" sodipodi:version="0.32" id="svg2" height="297mm" width="210mm" version="1.1" inkscape:export-filename="/home/bcrowell/Documents/writing/books/physics/share/mechanics/figs/cm-examples.png" inkscape:export-xdpi="300.09366" inkscape:export-ydpi="300.09366"> <defs id="defs3" /> <sodipodi:namedview inkscape:window-y="0" inkscape:window-x="0" inkscape:window-height="996" inkscape:window-width="1278" inkscape:current-layer="layer1" inkscape:document-units="px" inkscape:cy="671.87269" inkscape:cx="190.88077" inkscape:zoom="1.4939973" inkscape:pageshadow="2" inkscape:pageopacity="0.0" borderopacity="1.0" bordercolor="#666666" pagecolor="#ffffff" id="base" showgrid="false" inkscape:window-maximized="0" /> <metadata id="metadata4"> <rdf:RDF> <cc:Work rdf:about=""> <dc:format>image/svg+xml</dc:format> <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage" /> <dc:title /> </cc:Work> </rdf:RDF> </metadata> <g id="layer1" inkscape:groupmode="layer" inkscape:label="Layer 1"> <path id="path2125" d="m 254.41718,413.88701 -1.46414,0.17338 -2.77415,0.96325 -1.38708,1.38708 -0.57795,1.0403 c -0.3856,0.97285 -0.64198,1.76746 -0.92471,2.73563 l -0.13486,1.67605 -0.0963,2.06135 -0.52016,1.38707 -0.0193,-0.0193 -0.13486,0.30824 -1.31001,-0.17339 -0.0771,0.0771 -2.60077,0.84766 -4.87403,3.44843 -4.00711,4.31535 -5.16301,7.16656 -4.31535,6.02993 c 0,0 1.15442,-1.4394 -4.58506,4.87403 -5.73947,6.31343 -3.15945,8.61144 -3.15945,8.61143 l 1.13663,4.02638 2.02282,7.74451 2.87048,7.45553 2.29253,6.3189 0,6.02993 1.13663,5.72169 2.60077,4.8933 3.14019,4.87403 0,3.44843 0.57795,3.15945 1.0981,1.0981 4.58506,-0.17338 7.72524,0.46236 2.09988,-0.21192 0,-0.0385 0.32751,0 1.63752,-0.17338 -0.25045,-0.96325 0.28898,-0.57795 -0.28898,-0.86692 0.86692,-0.57795 -0.86692,-0.84766 -3.15945,-1.15589 -5.74096,-2.58151 -1.13663,-1.15589 -2.87048,-6.01067 -1.44487,-7.4748 -1.71458,-4.58506 -0.28897,-5.163 -0.57795,-4.60433 0.11559,-0.38529 -0.0578,-0.0193 0.42382,-2.31179 0.28898,-2.3118 c 0,0 0,-4.74991 0,-5.18227 0,-0.43236 -0.13485,-2.60077 -0.13486,-2.60077 l -0.57794,-5.47124 0.59721,-1.31002 -0.0771,-0.7706 1.71458,-3.44842 2.87048,-4.00711 3.44842,-2.3118 3.7374,-5.163 2.58151,-2.29253 1.4256,-3.7374 3.15945,-3.71814 2.29253,0.28898 8.61144,0.55868 6.60787,0.86692 8.03349,-0.28897 7.45553,-0.28898 2.50445,1.05958 5.24006,-0.7706 4.5658,-0.90546 0.3275,-0.80912 -4.60432,-0.28898 -4.58506,-0.57795 -4.02637,-0.86692 -3.42917,-0.55868 -5.18227,-1.1559 -3.71813,-0.86692 -2.29253,0 -4.02638,0.57795 -6.3189,-1.42561 0.28897,-0.86692 1.44488,-0.28898 0.28897,-0.57795 -0.28897,-1.71458 c 0,0 0.84766,-2.29125 0.84765,-4.87403 0,-2.58277 -2.57022,-4.59107 -3.71813,-5.45198 -0.10304,-0.0773 -0.33528,-0.13644 -0.48163,-0.21191 l -0.94398,-0.23118 -2.35032,-0.26971 z" style="fill:#000000;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:0.03082392pt;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1" inkscape:connector-curvature="0" /> </g> </svg> ____________________________________________________________ Can't remember your password? Do you need a strong and secure password? Use Password manager! It stores your passwords & protects your account. Check it out at http://mysecurelogon.com/password-manager

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Objects/Layers/Sets dialogs
by Tavmjong Bah 17 Jun '15

17 Jun '15

I've got a few questions about the Objects, Layers, and Sets dialogs: * Does the Layers dialog have any functionality that isn't supported by the Objects dialog? * Can the Layers dialog be removed (or merged with Objects dialog)? * Does anybody understand why the Objects dialog slows down Inkscape (bug 1431274)? * What is the purpose of the "domino" like icon in the Objects dialog? Is it just to open the color dialog? Is there an easy way to close the color dialog once open? Is it really useful to be able to open the color dialog from this dialog? * In the Sets dialog, what is the purpose of "Items"? It seems like an unnecessary layer between the set name and the objects in the set. Thanks, Tav

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