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Radial bending in Gimp!

Sep 15, 2010, 22:12
Post: #1
Radial bending in Gimp!
Hi folks
New to the forum!
I`m a woodturner and have made a wooden bowl and plan to transfer a border pattern to it.
I want to be able to convert a rectangular piece of a design maybe in .jpg or .gif format to a curved image to fit the outer top surface of the bowl. Someone very kindly told me about a tutorial in sketchup which could do this but unfortunately it requires various `pro` versions of software to do so and I wondered if I could do this (I believe its called `Radial bending`) in Gimp?. The attachment shows a bowl I made before but this border pattern was formed by using an already printed and shaped pattern that was 1/8th the circumference and copied 8 times round the edge.
Many thanks
Steve


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Sep 15, 2010, 22:42
Post: #2
RE: Radial bending in Gimp!
(Sep 15, 2010 22:12)Gasman Wrote:  Hi folks
New to the forum!
I`m a woodturner and have made a wooden bowl and plan to transfer a border pattern to it.
I want to be able to convert a rectangular piece of a design maybe in .jpg or .gif format to a curved image to fit the outer top surface of the bowl. Someone very kindly told me about a tutorial in sketchup which could do this but unfortunately it requires various `pro` versions of software to do so and I wondered if I could do this (I believe its called `Radial bending`) in Gimp?. The attachment shows a bowl I made before but this border pattern was formed by using an already printed and shaped pattern that was 1/8th the circumference and copied 8 times round the edge.
Many thanks
Steve

There is indeed such a tool in Gimp. However, it the target is a circle the "polar coordinates" transformation will give more accurate results. You provide a picture with a pattern that will join properly on the sides;
[Image: polarb10.png]

and with the proper options it gets warped/stretched into a circle:

[Image: polara10.png]

However in your case a vector-based drawing might be more efficient because resizing will alaways be perfect (see Inkscape, the Gimp equivalent for vector drawings).

PS: Nice work...

Now answering your questions on
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Sep 16, 2010, 18:15
Post: #3
RE: Radial bending in Gimp!
Thanks for that Ofnuts I`ll have to checkout Inkscape now ;-)
Regards
Steve
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