Tag Archives: news

How to install Foresight 3

We have written down how you can install Foresight 3 and get cinnamon or openbox as desktop. (more desktop env will come)

Read all about it here:


About the issue: exceptions.ImportError: libpopt.so.0: cannot open shared object file: No such file or directory

That error is probably gone, but has the information there, just in case.

We know that conary updateall or conary update *** doesn’t work for the moment, because the groups are out of sync. But will be fixed later.

Leave a comment if you wonder anything.

Note: The old wiki is located here: http://www.foresightlinux.se/wiki-en

The new wiki will live here: http://wiki.foresightlinux.se

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Artist uses Audacity, GIMP, Processing to create 3D printed jewelry

Dot Silverman, an independent designer and a student research assistant at Pomona College, made an interesting use of free software: creating jewelry in shape of 3D-printed waveforms.

The workflow she came up with involves:

  • recording her voice in Audacity and saving it to MP3;
  • using an app in Processing to generate a PNG file out of that MP3;
  • creating an SVG file out of that PNG with GIMP (fuzzy selection + conversion of the selection to a path);
  • using Autodesk’s Fusion 360 to create the jewelry model out of the SVG and print it.

Here’s obligatory video:

The point of this exercise is exploring, what kind of interesting personalized things you can make with easily accessible tools, not using libre software as much as possible. However, since the output file format is basically the good old STL, one could easily adopt the workflow and replace Fusion 360 with either Blender or FreeCAD (or even OpenSCAD).

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Quasado opensources Gravit, web-based design tool

Berlin-based company Quasado released source code of Gravit, their HTML5-based design app, under dual GPLv3+/commercial license.

The news is a quite interesting development of a slightly dramatic story involving a community of extremely passionate Adobe/Macromedia Freehand users, an ill-accepted rebranding from Gravit’s predecessor Expressive into Stagestack, a failed fundraiser, first considerations to open the source code, and, finally, a bold move into rewriting everything with HTML5, CSS, and JavaScript, followed by rebranding into Gravit.

The new vector graphics app is an ommnivore: it’s available online, there are builds for Linux, Mac, and Windows, you can install install it on Chrome and Chrome OS. And yes — now there’s also source code on GitHub.


While Gravit subjectively feels a bit barebone in terms of features as compared to either free/libre apps such as Inkscape or commercial counterparts such as Adobe Illustrator, it has the foundation for something serious. Basic shapes, gradient fills, multiple strokes, snapping system with smart guides, transformation and alignment, as well as slicing are going to make one hell of a v1.0 in September 2014, should the deadline be met.

We spoke to Alexander Adam, CEO of Quasado, about the reasoning behind the change of heart, and about company’s further plans.

Alexander, judging by your article on Medium, your situation falls neither under “we are broke, so we opensource it to let it live”, nor under “we really dig that opensource thing, but we’ve no clue about our business model” case. What is your plan for making this project commercially sustainable?

Gravit is the core of our soon-to-be-released commercial cloud-based solution to manage collaborative design projects, gain customer feedback etc. It’s going to integrate perfectly with Gravit.

In your post on Medium you also mentioned commercial addons. What kind of?

Prototyping (including actions for events etc.) and animations are biggest ones. Furthermore, we’re also working on a full PostScript interpreter addon to read/write AI, PDF, EPS, and PS which will be a commercial plugin for Gravit, even though others are, of course, free to write their own free addon to do the same.

Given your extensive past expertise with SVG, the Renesis SVG player, it’s interesting that you only made use of HTML5, CSS, and JS. Why?

SVG turned out to be too slow and inflexible for such a huge undertaking. As I know SVG pretty well in-and-out, it was, after all, a technological decision made, and it turned out to be the better one.

Did you design your own DOM?

Yup, absolutely. We’ve designed our own scene graph model. It works similarly to the one we previously designed for Stagestack which already was optimized for fast rendering and performant changes including animations without eating too much memory and CPU power.

How would Gravit handle really complex project with lots of paths and nodes, fills, and blurs? Will you be using WebGL?

Upfront WebGL is (not yet) available everywhere considering especially mobiles. Furthermore, Canvas 2d is blazing fast due GPU acceleration, and most time is spend on blitting anyway which WebGL wouldn’t help with, because you’d need to get the textures in and out.

One of the reasons the Free Freehand community supported you — up to a point — is that they needed both workflow and .fh files support, and you were interested in giving it to them. How do they currently affect your roadmap, and what’s up with the importing/exporting system?

Well, Gravit already combines best of Freehand and Fireworks as of now. Furthermore we already have a large code base for importing Freehand files which will be open-sourced as well, so people may improve it, if things don’t go well.

Speaking of combining the best of Freehand and Fireworks in a single new app, how closely do you replicate the way Freehand tools work? How and where do you draw the line between “we’ll do the same way” and “we’ll do it differently”?

Well, we’ve taken a sheet from the Free Freehand community where they’ve listed a lot of features of Freehand they wanted to see implemented in Adobe Illustrator, and we implemented most of these.

However, we’ve put a lot of effort into combining those features with the ones from Freehand, because we wanted to build a tool that is as good for print design as it is for screen design, and I am really happy with the result so far. Sometimes, understanding and combining features of both applications took us more time then actually building them 😉

Can you say you have solid feedback from the Free Freehand community at this point?

To be honest — no. We’ve expected so much more, but there’ve been roughly about 25+ people interacting with us, and that’s about it.

My impression from the Stagestack story is that you overestimated the amount of Freehand users actually willing to sponsor development of a viable substitution, given how many had already moved on to other tools. So while Stagestack fundraiser page prominently mentioned Freehand, Gravit’s project page is completely lacking any mentioning of Adobe/Macromedia tools. Is it a marketing decision?

Yes, absolutely. We’ve integrated a lot of features from Freehand and Fireworks, when we’ve considered them to be versatile enough. However, we’ve also mixed a load of our own ideas and experiences into the app, and we didn’t want to be “just a clone of Freehand”, because Gravit will be so much more. That’s why we call it Gravit, a tool in the spirit of former Freehand and Fireworks.

One of the results of rewriting Qt4-based Expressive/Stagestack into HTML5/JS-based Gravit is a dramatic cut of lines of code: from ca. 400K to ca. 100K. How did you do that?

There are a few points here:

  • We’ve learned so much on Expressive/Stagestack that we knew how to write more efficient code.
  • We’ve implemented a more effective Geometry library based on Vertices that does all the hard work (low code).
  • We’re able to utilize a lot of browsers’ features including HTML5 Canvas API, CSS3 and generally HTML5 Layouts reducing code.
  • JS is such an expressive language that we, using our own OOP-Framework for JS, were able to reduce a load of code using more functional/expressional programming.

Do you see Gravit as a tool with full support for spot colors, CMYK (vectors and images), and reliable PDF exporting with all the print/crop marks and suchlike?

Absolutely! This is one of the “last” challenges considering Gravit being based solely on HTML5, CSS and JS but it is on our list.

How are you going to deal with the licensing challenge when it comes to e.g. Pantone? Will you be using XREF?

We’ve started talking with Pantone but as you can imagine, they won’t license to us as of now. XREF might be a viable option. We’re, however, targeting to create a commercial addon supporting full Pantone spectrum.

What are your plans for Gravit beyond the v1.0 release?

We’re trying to improve the print/CMYK capabilities after 1.0 as well as introducing more features still missing from fireworks/freehand in Gravit to become “feature complete” in 2.0, namely symbols, states (Fireworks), and extended typography features (Freehand).

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DIGImend project delivers support for Yiynova digitizers

Nikolai Kondrashov released the first version of drivers for the Linux kernel that introduces support for Yiynova tablets along with already available Huion drivers.

The new drivers feature support for a variety of Yiynova tablet displays: MSP19U, MSP19U+, MVP22U+, MVP10U, MVP10U IPS, MVP10U HD IPS, DP10U, and DP10U+. Initial drivers code was written by programmers at Yiynova Europe BV who then assisted in testing and provided feedback to the DIGImend project.

One of the points to support Yiynova devices is that they are generally about two times as cheap as similar Wacom tablets. Inside they are based on a UC-Logic chipset — just like Huion devices — which is why Nikolai is considering merging the existing hid-huion driver into the hid-uclogic driver.

Should you decide to do away with the drivers, there’s now an uninstall routine implemented as well.

DIGImend project was started by Nikolai several years ago to fix the sorry situation with Linux drivers for graphics tablets by vendors such as Genius, Aiptek, Huion etc. (see our earlier interview). Thanks to his work over 50 models by various vendors just work on Linux.

Source code of the new release is available on GitHub.

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