Catégorie : Scalable.Vector.Graphics

works, experimentations , ideas for/from SVG ressources

  • Inkscape patterns/  les Motifs dans Inkscape sans l’outil de découpe

    Inkscape patterns/ les Motifs dans Inkscape sans l’outil de découpe

    This is a very little imaged tuto destinated to get around what seems to be a bug in Inkscape , while setting  a clip on 2 objects then trying to make the resulting group  a pattern. ( resulting in blank rectangles )

    Bonjour aux lecteurs curieux de Ubuntu-fr.org, j’espère que cela pourra en aider plus d’un 🙂

    Je rappelle que je ne me suis pas appliqué à faire quelque chose de précis ;

    [nggallery id=5]

  • (python) Playing with Pixel Art  to SVG

    (python) Playing with Pixel Art to SVG

    Hi,

    Well I’m actually searching cool stuff concerning svg. So I’ve been searching on pypi all about SVG using pip in my terminal.

    for those who don’t know it on a debian system:

    sudo apt-get install python-pip

    then

    pip search svg 

    You’ll find there a very nice little tool called ‘pixel2svg’

    I was surprised of its interest but I consider it finally very useful : rather than trying to vectorize very little pictures ( like icons ) in Inkscape, or to completely re-do it , use it to keep the pixel-art-style  with great results.

    Very simple to use, just like this:

    pixel2svg.py eboy.png

    I’ve taken a picture from EBOY ( http://hello.eboy.com/eboy/ ) to play with.

    pixel-art ,icon size
    pixel-art ,icon size

    Let see the result:

    resulting SVG

    Then let’s play with it:

    Make whatever you want now with a clean drawing

    g2961

     

    a styled pixel-art vecorized
    give it the style you want

    Before that I have tested the Inkscape’s vectorization tool :

    Comparing pixel2svg vs inkscape's vectorization tool
    Comparing pixel2svg vs inkscape’s vectorization tool

     

    Tell me if it can also be useful to you , I wonder what you would be able to do with it 🙂

    NB:  Now you can also apply this to Qrcodes . How ? Well… Have you ever tried to redirect one of them?

  • Sliding with Hovercraft!

    Hey I’ve discovered a new  python-based presentations engine:

    hovercraft logo           Hovercraft!

    « The merge of convenience and cool!

    Hovercraft! is a tool to make impress.js presentations from reStructuredText. For a quick explanation, see the demo.
    Features:

    •     Write your presentations in a text markup language. No slow, limiting GUI, no annoying HTML!
    •     Pan, rotate and zoom in 3D, with automatic repositioning of slides!
    •     A presenter console with notes and slide previews!
    •     The slide show generated is in HTML, so you only need a web browser to show it.
    •     Easy sharing, as it can be put up on a website for anyone to see!

    Full documentation is available at readthedocs.org, and also in the documentation subdirectory. »

    source: https://pypi.python.org/pypi/hovercraft

    What a wonderful tool for all webdesigners, presenters, devworkers !
    No need to use -free or not – softwares with their own extensions, no conversions needed as it makes all the work and create an index.html with css.
    But all is not as easy as you’ll have to install it on your system, before creating your first reStructuredText.

    That’s why I’ve made a little tuto for interested (and noob) people like you 🙂

    Well, first of all I work on a Linux system ( Ubuntu 12.10 ) so you’ll have to translate the commands for yours (I use apt-get to download the missing libraries.)

    Fine, so download the hovercraft folder on the dev page there: https://pypi.python.org/pypi/hovercraft

    Well done! So you’ll find there a lot of files and folders , but the interesting one is « setup.py »

    Ok, so are you fluent with Python ? ==> you can pass this part and go down to « installing missing libs« 

    If not, continue reading:

    « Python is a programming language that lets you work more quickly and integrate your systems more effectively. You can learn to use Python and see almost immediate gains in productivity and lower maintenance costs.

    Python runs on Windows, Linux/Unix, Mac OS X, and has been ported to the Java and .NET virtual machines. »

    source: www.python.org

    I won’t make a course on python there but I want you to understand you’ll have to build and install Hovercraft! in order to use it as a shell tool.

    So make sure to install python on your system using the command shell ( or terminal) :

     sudo apt-get install python3.2-dev  ( here we install python3.2 since Hovercraft has been written in Python3; it won’t work if you use python 2.7 for multiple reasons I’ll let you search on Python.org )

    Installing missing libs :

    Hovercraft! needs 2 libraries to be compiled: libxml2 and libxslt ; here we’ll download the dev versions.
    You can get them with:

    sudo apt-get install libxml2-dev libxslt-dev

    then

    sudo apt-get install python-lxml

    now if not installed, download python3-setuptools:

    sudo apt-get install python3-setuptools

    and you can finish with:

    sudo easy_install lxml

    That’s done for this part;

    Nice; there you have all to build and compile Hovercraft! on your system.

    Bulding and compiling:

    You have to reach Hovercraft! folder to see the setup.py file

     cd ~/hovercraft-1.1/
     then type « ls » to check all the contained files and folders

    ok, fire!

     sudo python3.2 setup.py build

    once finished:
     sudo python3.2 setup.py install

    Normally you’ll read some errors messages but it doesn’t mind;

    I’ll let you there discover the well-made tutos :

    linked on a dedicated page:

    https://hovercraft.readthedocs.org/en/1.0/

    In the folder Docs/examples/ you can edit all the .rst files , as they are text files and try to make them html presentations with for example:

    hovercraft tutorial.rst ~/yourdestinationfolder

    Open Index.html with your favorite browser and enjoy 🙂

    ex: http://fabkzo.com/hovercraft/tutorial.html

  • Making SVG+js presentations with sozi

    Hi there,

    Today I’ll just remind you Sozi’s existence , has a plugin for inkscape. That’s free and easy to use, no need to code, just do it graphically.

    Very nice to make « Prezi-like » presentations ; you can add video and audio if you want, but just be sure that your browser(s) implement it well ( actually i’m a bit slow under firefox, very nice with chrome )

    The top should be to make it as there: http://svg-wow.org/blog/2010/08/14/camera/  but forget it, your « slides » won’t move like that;

    If you’re more interested with javascript , also exists impress.js : http://bartaz.github.com/impress.js/#/bored

    but a bit harder to understand.

    The good point for using Sozi is that  it generates a SVG file , giving you the possibility to use it as a page, to implement it in a html page etc, etc…

     

    There I call it with an iframe, as on sozi’s site ( http://sozi.baierouge.fr/wiki/doku.php ), to make it interactive and to adjust its size.

    
    

     

    but you can also use this link to see it in fullscreen as an SVG page ( copy and paste in your browser) :

    fabkzo.com/wp-content/uploads/2013/02/qrcodesozi.svg

     

  • SMIL Animated star button

    Today one little thing;  I’m preparing  something bigger . I just need more time;

    This is an animated star with SMIL attributes, even I know we can do it with ecmascript.

    [svg src=http://www.fabkzo.com/images/etoiles.svg width=100 height=100]

    So I’ve tested there a synchronisation between all elements after an interaction with the visible star.

    Well, if you want the interaction working well you have to implement it in a Html5 based page ,there you’ll have to display it full to see the animation; to adjust size and position change the height, width and viewBox parameters.

    Study it to understand 🙂

    You can do almost the same  with CSS3 I think, but with multiple images called, must be heavier than that…

  • A QRCode ‘SVG + SMIL’ based game

    That’s not a new idea, someone has already given it a name: Qrcoderoulette;

    the idea is to submit multiple QRCodes to the user who has to fall on the « right one » not pointing-for example- on an internet shock site, putting at risk the device scanning these codes.
    But all this remained hopelessly static and require more display space on the concerned page. (Http://blogs.mcafee.com/mobile/no-winners-at-qr-code-roulette)
    I do not wish here to implement this type of practice, I take the idea in order to make -at choice: a game, a joke, a piece (!)
    How to reuse the concept saving space, attracting the eye and interest?
    Take inkscape, SMIL attributes, an Internet browser, mix them together and you get something like this:

    qrcodejeu

    Note: my animation is not perfect because there is a gap between two QRCodes. Image weight: 44.8 KB

    Here 2 QRCode on 3 refer to the phrase “you’ve lost”, the other pointing “www.fabkzo.com”; changing colors and animation are just there to spice up the game, this idea can be used for competitions, small gains etc etc …

    Obviously we could do animation in javascript or .gif format, or anything else, I’ve chosen SMIL for its ‘natural’ implementation in most browsers (except IE of course, and it seems some browsers’ mini ‘smartphones like Opera mini), animations are part of the image and might not be blocked unless you decide not to display the picture.

    In the case of these browsers that do not support SVG animations I propose converting it to video (. Ogg,. Webm,. Mp4). If you find a (simple) way to convert it to .gif just let me know.

    Don’t forget to remove any way to easily determine which is the winning qrcode.

    If you want to learn how to make yours, follow me there ==> Coming soon

     

  • SVG rotations with SMIL

    Trying something misused

    This is my own complete creation, made last year. I wanted to innovate and start from nothing, creating a « logo »and  a slogan I had never met. It ‘s time for me to share it, you can use it only for personnal use.

    naturetakecare2

    Licence Creative Commons
    Ce(tte) œuvre est mise à disposition selon les termes de la Licence Creative Commons Attribution – Pas d’Utilisation Commerciale – Partage dans les Mêmes Conditions 3.0 non transposé

    it represents what I love with SVG and animations : You can edit it in inkscape directly and work on it, print it, export it as usual, but when you open it with the right browser …. tadaaa! it turns 🙂 (you’ll just have to remove the 1ms ie case path before )

     

     

  • Animating an old bitmap picture with SVG, javascript and SMIL

    Hi ,

    Today I just finished a little project ; this a scan of an old advert found in  « le petit illustré » France 1914 ,cleaned in GIMP then integrated in INKSCAPE . I just wanted to gave them life back ~~; if you want the « settime »script to work, just save it on your machine then open with your browser.