Thanks for the link! - The Frieze groups are definitely interesting! I'll add those to the current mock-ups once I have the time. They should help make border designs easier. - The Rosetta groups seem to be just Simple Rotations and Symmetry + Rotations though. Am I missing something?
I'm not sure what you mean by rotation points, reflection lines etc. that can be moved though. They don't exist as separate points, they're just the borders and corners of the guides. A guide defines the shape of the base tile. You modify the guide itself, not points along the guide. (example: simple translation has a rectangle guide. You can easily change the dimensions of this rectangle, though it will stay a rectangle).
Are you referring to my notion of guide points? Guide points are separate points that when added to one side of a guide, create counterparts on other relevant sides of the guide, so you know where you add lines in a way to create seamless transitions from one tile to the next. They're made so that a user would need 0 knowledge of wallpaper geometry when creating seamless tiles: they just need to connect to the guide points.
I should have made a visual reference of guides and guide point behavior for each tiling type, but the truth is, I'm pretty confused about tiling behaviour myself. :S That's the whole reason I tried to come up with an interface that basically requires 0 prior knowledge. x) ------------------------------
Message: 6 Date: Sat, 17 Mar 2012 11:55:16 -0700 (PDT) From: veronika <vmi@...2827...> Subject: Re: [Inkscape-devel] New tiling interface proposal To: inkscape-devel@lists.sourceforge.net Message-ID: <1332010516483-4628619.post@...2730...> Content-Type: text/plain; charset=us-ascii
You have covered the topic very well. Another example to look at is the Kali applet:
http://www.scienceu.com/geometry/handson/kali/index.cgi?group=wt
For Tiling along the Path you could support the seven Frieze groups and for Rotational tiling you could support the Rosette groups.
In the guides for a given symmetry group, you could show the rotation points (along with their degree) as well as reflection lines, glide reflection lines and translation directions and lengths. I think you briefly describe these ideas in your document but since there is quite a lot going on here it may be useful to spell it out in detail for each symmetry group. The user should be able to move these guide lines and points as long as they stay within the constraints of the chosen symmetry group.
Below is a picture of guides for symmetry p6m (colours just used for visibility but should conform to guidelines elsewhere):
http://inkscape.13.n6.nabble.com/file/n4628619/wallpaper.png
The book "The Symmetry of Things" by Conway, Burgiel and Goodman-Straus has some very nice visualizations for reference.
-- View this message in context: http://inkscape.13.n6.nabble.com/New-tiling-interface-proposal-tp4570734p462... Sent from the Inkscape - Dev mailing list archive at Nabble.com.
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Message: 7 Date: Sat, 17 Mar 2012 21:03:47 +0100 From: Stefan de Konink <stefan@...2063...> Subject: Re: [Inkscape-devel] Inkscape GIS To: brylie@...2823..., Inkscape Devel List inkscape-devel@lists.sourceforge.net Message-ID: <4F64EE23.3050006@...2063...> Content-Type: text/plain; charset=UTF-8; format=flowed
On 17-03-12 20:55, Brylie Oxley wrote:
Thank you for suggesting Mapnik Stefan! :-) Inkscape would be a suitable GUI for a Mapnik based cartography solution. I do not think that Inkscape and Mapnik are necessarily in opposition, do you?
The major problem is, if you look at cartography to SVG is that data is not offered in layers you would actually use in regular print. The output of mapnik is actually a set of drawing commands. So your audience might require two approaches;
- ability to get an arbitary piece of a map, and the ability to interactively edit the stylesheet, see output etc. Inkscape could help here because stylesheets contain a lot of SVG elements you want to edit along the map; the result of this operation is a stylesheet, and a set of icons.
- the ability to get arbitrary data in layers and be your own renderer, stack layers, assign decimation, add colours etc. this would be closer to having a shapefile in a solution like Illustrator and modifying it. Opposed to mapnik this step requires the editor to do 'layer' operations theirselves.
Stefan
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