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Create a spiral

This discussion is connected to the gimp-user-list.gnome.org mailing list which is provided by the GIMP developers and not related to gimpusers.com.

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Create a spiral Kevin Waterson 26 Sep 11:32
  Create a spiral Carol Spears 26 Sep 17:39
   Create a spiral Alan Horkan 27 Sep 01:01
  Create a spiral Joao S. O. Bueno Calligaris 26 Sep 18:26
   Create a spiral Kevin Waterson 27 Sep 00:30
Kevin Waterson
2004-09-26 11:32:44 UTC (over 20 years ago)

Create a spiral

I have recently been using the tutorial recommended here at http://www.gimpguru.org/Tutorials/ReplaceForeground/ and I am amazingly impressed.

I wish to venture further into the gimp and create my own background. I was hoping to create a spiral of the sort here... http://www.iamts.org/images/spiral.gif

Is there a tutorial or something about this?

Kind regards Kevin

---------
"Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote."

Carol Spears
2004-09-26 17:39:04 UTC (over 20 years ago)

Create a spiral

On Sun, Sep 26, 2004 at 07:32:44PM +1000, Kevin Waterson wrote:

I have recently been using the tutorial recommended here at http://www.gimpguru.org/Tutorials/ReplaceForeground/ and I am amazingly impressed.

I wish to venture further into the gimp and create my own background. I was hoping to create a spiral of the sort here... http://www.iamts.org/images/spiral.gif

Is there a tutorial or something about this?

no tutorial that i know of, if you are able to get the suggestions from this list to work for you, you might consider writing one.

gimp has a whirl and pinch plugin: -->Filters -->Distorts -->Whirl and Pinch. this might do it ....

carol

Joao S. O. Bueno Calligaris
2004-09-26 18:26:18 UTC (over 20 years ago)

Create a spiral

On Sunday 26 September 2004 06:32, Kevin Waterson wrote:

I have recently been using the tutorial recommended here at http://www.gimpguru.org/Tutorials/ReplaceForeground/ and I am amazingly impressed.

I wish to venture further into the gimp and create my own background. I was hoping to create a spiral of the sort here... http://www.iamts.org/images/spiral.gif

Is there a tutorial or something about this?

Hmm..that spiral is a particular curve, which is not implemented in the GIMP.

You can do other type of spirals with the blend tool (select spiral gradient), or with the Gfig filter (in filters->render).

If you want this kind of spiral, I'd suggest that you work on the image you just showed us, instead of creating a new (identical?) one.

You can enlarge it without quality loss using scale image, followed buy a gaussian blur filter, and sharppening contrast back.

If you need this particular curve, but with other parameters like width variation, number of turns, etc, you wll have to do it programatically, either using gimp scripts, or as a standalone program.

JS
->

Kind regards
Kevin

---------
"Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote."

Kevin Waterson
2004-09-27 00:30:51 UTC (over 20 years ago)

Create a spiral

This one time, at band camp, "Joao S. O. Bueno Calligaris" wrote:

If you need this particular curve, but with other parameters like width variation, number of turns, etc, you wll have to do it programatically, either using gimp scripts, or as a standalone program.

This sounds like it may be a good introduction for me into GIMP scripting. I guess it is just a circle with a constantly decreasing radius. I will read up on some scripting tutorials and be back with more questions. I have really only been using The GIMP for a week. I have used it in the past just to resize images, but now I wish to get a little more funky with it.

Kind regards Kevin

---------
"Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote."

Alan Horkan
2004-09-27 01:01:53 UTC (over 20 years ago)

Create a spiral

On Sun, 26 Sep 2004, Carol Spears wrote:

Date: Sun, 26 Sep 2004 08:39:04 -0700 From: Carol Spears
To: Kevin Waterson ,
GIMPUser
Subject: Re: [Gimp-user] Create a spiral

On Sun, Sep 26, 2004 at 07:32:44PM +1000, Kevin Waterson wrote:

I have recently been using the tutorial recommended here at http://www.gimpguru.org/Tutorials/ReplaceForeground/ and I am amazingly impressed.

I wish to venture further into the gimp and create my own background. I was hoping to create a spiral of the sort here... http://www.iamts.org/images/spiral.gif

Is there a tutorial or something about this?

no tutorial that i know of, if you are able to get the suggestions from this list to work for you, you might consider writing one.

gimp has a whirl and pinch plugin: -->Filters -->Distorts -->Whirl and Pinch. this might do it ....

You could achieve something similar by rendering a checkerboard
(check size == image size/2)
then whirl pinch
then use Apply Lens
(but dont keep the surroundings set to background colour instead)

Gfig can also be used to generate Spirals.

As others have stated there is no obvious way to create exactly the spiral you provided a sample of but if you dont need exactly the same results you should be able to play around and get something similar.

Sincerely

Alan Horkan