Episode 175: Polygonal Blob

Download the Video! (20:10 40.0MB)
After a visit to Libre Graphics World with a report about the state of GIMP 2.8 and a look into the future.

I tackle a question I was asked at the 28c3. Is there a way to draw geometric figures in GIMP? Well, I found three.

The selection tools provide a variety of ways to make a geometric selection which later can be stroked or filled with a colour or pattern. The paths tool can be handy too, I didn’t cover it in this show.

The Gfig plugin allows the construction and editing of such figures, but there are a lot of drawbacks and some risk of fatal crashes.

And finally – is GIMP the right tool? Why not take Inkscape, dabble a bit and export the result to GIMP? Inkscape is easy to use for simple tasks – they have a really good user interface. For more complicated stuff there are the tutorials at screencasters.com. Long time no show there, but perhaps Richard and heathenx can be pestered into making some more. They haven’t given up but gone into hibernation a bit.

And if you are in or around Toronto – Steve Czajka is holding an interesting course there.


00:40 State of GIMP 2.8 – http://libregraphicsworld.org/
01:55 28c3 in Berlin
02:30 Drawing geometric figures – a missing feature?
03:30 Select and stroke
03:35 Rectangle, Ellipse and Free Hand selection tool
04:15 Help from Guides and the Grid
05:00 Stroke
05:50 Combining selections
06:20 Subtracting selections
07:10 gfig plugin
07:30 Lines,rectangles, circles, arcs, polygons, stars and more
08:10 Limits and drawbacks
09:00 Editing
11:00 CRASH!!!!
11:30 Don’t use GIMP! Use Inkscape!
15:30 Getting the work back to GIMP.
16:00 Making a colour transparent
17:00 Choose the right tool
18:00 Version control for GIMP – not yet

Creative Commons License
Meet the GIMP Video Podcast by Rolf Steinort and Philippe Demartin is licensed under a Creative Commons Attribution-Share Alike 3.0 Germany License.
Permissions beyond the scope of this license may be available at http://meetthegimp.org.

Inkscape 0.46 Released !

The sources were already available at SourceForge.net for two weeks but now it is official: version 0.46 of Inkscape has been released.

Although the version “jump” from 0.45 to 0.46 might suggest a minor update, it is in fact a leap forward. There are way too many new features to mention here. To wet your appetite I just name native PDF support and colour management.

Check out the release notes to see a comprehensive list.

EDIT BY ROLF: I copied the following comment from Serge below in the thread to here.

This is not an exhaustive account but rather a personal summary of the highlights of Inkscape 0.46.

– Editing of gradients has become much user friendlier now. They can be edited on canvas and by simply dragging and dropping a colour on or between its nodes you can now very easily define a gradient.
– Inkscape has now implemented a bunch of SVG filters, e.g. displacement mapping or specular lighting. Using them is not straight forward at first instance but it provides a powerful way of concatenating basic filters to define a new filter. It reminds in a way of Blender’s node editor. As one may expect, all these filters are non-destructive.
– Inkscape offers the possibility to use paths as a deforming object: the child object will be deformed according to this path. Here I encountered buggy behaviour when editing the paths: the handles of nodes move easily in random and extreme ways.
– You can use colour profiles and do soft proofing. There is no working space however which seems odd to me. Maybe I missed something.
– You can import PDF files now and then edit them as usual objects in Inkscape. This means that text, shapes, etc can be modified. This is not as strange as it looks: PDF is essentially also a vector format.
– Last but not least and for me a big surprise: the tweak tool. This is like the sculpt tool in Blender or ZBrush. You use the mouse as a modeling tool: you can push and pull paths, smooth or roughen them, change colour just by painting over objects with the mouse. You have not the feeling anymore that you are using a vector drawing application. If you have not done this before, it will require some getting used to, but after some time you cannot live without it.

As I said, there are many, many more changes, new features and enhancements. I can recommend to spend some hours reading and experimenting with 0.46. It will convince you that 0.46 is not just a minor upgrade. Of course there are some flaws, missing features (e.g. an improved way of handling layers) and you will probably encounter a bug. I am pretty sure by the way that those will be ironed out in a bug fixes release 0.46.1.

If you are curious to know more about Inkscape, heathenx and Richard Querin provide excellent screencasts in which they show how to use Inkscape. Highly recommended: http://screencasters.heathenx.org/