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Tip for Amazing Circles

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Flatfield says:

I've been playing around with Amazing Circles. You can find instructions for how to make them in Photoshop, and the techniques in gimp are similar.

1) Make a square selection (Choose rectangular selection. Click to begin the selection, then hold Shift as you drag.)

2) Choose Filters : Distorts : Polar Coords. Be sure to click the button for "To Polar" OFF, and click OK.

3) Flip the result vertically.

4) Choose Filters : Distorts : Polar Coords. Be sure to click the button for "To Polar" ON this time! Then click OK.

However, I've found that sometimes the first Polar Coords results in some strange blank white areas. This is completely eliminated by inserting this step:

1a) Copy the square selection, and chose Edit : Paste as New to make this selection into a new image.

Otherwise, the Polar Coords transformation is using the coordinates of the selection in the original image, I think, so it tries to transform in some parts of the image outside the selection, which of course show up as blank.

Have fun. These amaazing circle things are like popcorn. Can't stop makin' 'em! :)
Posted at 5:44PM, 25 March 2006 PDT ( permalink )

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DouglasO says:

Thank you flatfield, I finally learned from you the "flip image" trick, which is what is needed to get rid of the evil seam that you'll have otherwise. Check out the chrome droplet I made with your method;
Chrome droplet
Originally posted 40 months ago. ( permalink )
DouglasO edited this topic 40 months ago.

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Flatfield says:

Nice! I like your other circles, too, especially this red one!


Posted 40 months ago. ( permalink )

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davesbit says:

Thanks Flatfield!
that was fun
(its the FedEx plane flying over)
fedex plane polar
Originally posted 40 months ago. ( permalink )
davesbit edited this topic 40 months ago.

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DouglasO says:

Flatfield, do you have any guess what the red circle was made from?

(hint look back in my photo stream a few pages and you'll see the object).
Posted 40 months ago. ( permalink )

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Flatfield says:

Did I find it?
www.flickr.com/photos/dougs/63752102/

Cool inside-out plane, davesbit!

I'm too ashamed to post mine. They're kind of lame.
Posted 40 months ago. ( permalink )

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DouglasO says:

Flatfield,
You found it.
Posted 40 months ago. ( permalink )

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Flatfield says:

Okay, I fibbed. Here's one. Lame, as promised!

Cut free from Earth
Posted 40 months ago. ( permalink )

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DouglasO says:

Flatfield, no it's kind of neat. You just need the right caption for it.

Something like,

"floating warp gate"
or
"sky hook"
Posted 40 months ago. ( permalink )

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SaZeOd says:

Hello Guys, My small contribution to this topic:

Time's Runing Out


Another one's Here

P.S: I'm kinda junky now, totally addicted to this! Here's another one again: Clic

PPS: It may not be a bad idea to blur the edge of the final circle, since the polar coord deformation makes it very very sharp, and maybe too much "pixeled".
Originally posted 40 months ago. ( permalink )
SaZeOd edited this topic 40 months ago.

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DouglasO says:

From looking at these pictures, most reading this already know this trick.

To have a square selection centered on a point of a picture do this:

left click, control, shift, (in that exact order) drag for selection box, release left button, and keyboard keys.

One I just made doing this.

March fall day circle
Originally posted 40 months ago. ( permalink )
DouglasO edited this topic 40 months ago.

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CFBSr  Pro User  says:

Yipe's you've got me hooked. From a 69 Ford Grill with a U of Michigan plate on the front.
Ford Licence Plate Polar-ized
Posted 39 months ago. ( permalink )

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GothCandy  Pro User  says:

Yeah... once you work it, you can't stop... >_<

Fireball
Snowball
Posted 39 months ago. ( permalink )

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ccbarr says:

Hey, those are a lot of fun to make. Thank you for posting the gimp tutorial. Big gimp fan (well open source in general) here. Already made a couple and trying to make some frames to make animations with them :-D
Posted 39 months ago. ( permalink )

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aartj says:

This is cool. You can even skip the step to flip the image if you toggle the "map from top" button in the two Polar Coords steps. This is what I got (with smoothed edges):

Originally posted 39 months ago. ( permalink )
aartj edited this topic 39 months ago.

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Loop } says:

haha.. such fun!! :DD
CIMG1598~
Posted 39 months ago. ( permalink )

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tuxcomputers is a group administrator tuxcomputers says:

Polar creation
Posted 39 months ago. ( permalink )

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FiveAcres  Pro User  says:

Here's one. Thanks for the Gimp instructions, Flatfield


Posted 38 months ago. ( permalink )

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quixotickane says:

good tip.
i prefer GIMP and was having problems doing this with the program.
i was wondering why i kept getting white spaces
Posted 38 months ago. ( permalink )

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jancyclops  Pro User  says:

In The GIMP you don't need to make a square selection. If you follow Flatfield's instructions (apart from that one) and make sure that the "Circle Depth in Percent" parameter is set to 100 (the default) all the way through, you can use a rectangular image. You can use the "Offset Angle" slider to position the picture the way you want it and can even come up with something where the original photo is still recognisable...
Direct Boot
This gives a result which I think is surreal rather than abstract.

You can also muck about with the "Circle Depth in Percent" parameter. This one was from a square selection (it would have been elongated otherwise) with "Circle Depth in Percent" set to 50 throughout.
Yellow Experiment
This second image definitely falls within the "abstract" category rather than surreal.
Posted 38 months ago. ( permalink )

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tuxcomputers is a group administrator tuxcomputers says:

I have just completed a script for Amazing circles

Once it's installed you can find it in <Image> -> Filters -> Distorts -> Amazing Circles...
Posted 28 months ago. ( permalink )

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mavoro  Pro User  says:

Nice script! TX.
Posted 28 months ago. ( permalink )

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redraven_info  Pro User  says:

Here is another approach:
1) Select Filter->Distort->Polar Coords....
2) Switch checkboxes to 'Map Backwards': off, 'Map from top': off, 'To Polar' off.
3) Select the polar coords again, as in step 1.
4) set the checkboxes to 'Map Backwards' is still off, and 'Map from top': on, 'To Polar' on.

This way you don't have to do the step of flipping the layer vertically.
Posted 28 months ago. ( permalink )

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tuxcomputers is a group administrator tuxcomputers says:

@redraven: Does it give the same results? If so then I can change the script.
Posted 28 months ago. ( permalink )

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mandus  Pro User  says:

Thanks for the tip:

polar-apple
Posted 28 months ago. ( permalink )

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jancyclops  Pro User  says:

@tuxcomputers: What redraven_info suggests gives similar results though they might not be exactly the same. It's along the same lines as choosing whether to flip a picture or rotate it through 180º instead.

Phil.
Posted 28 months ago. ( permalink )

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mikeracing77 says:

Yeah... these things are like popcorn or potato chips,... just,.. can't... stop....
Here's a freighter being loaded up in the clouds lol .. that can't be good for the crane to bend like that.....
sky ship
Originally posted 28 months ago. ( permalink )
mikeracing77 edited this topic 28 months ago.

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Stupid Dancer says:

This is fun. Thanks, Flatfield!

Polar Djembe
Posted 28 months ago. ( permalink )

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tuxcomputers is a group administrator tuxcomputers says:

I tried both Amazing circle technique's last night and found there was a very slight difference.

I have updated the script to use the second method that does not require the flipping and so that it checks to see if the image is already a square. The previous script would have a divide by zero error if it was.

The new script is here.
Originally posted 28 months ago. ( permalink )
tuxcomputers (a group admin) edited this topic 26 months ago.

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Vinnl says:

They're really cool :D

Amazing Circle of Elephants Dream
Posted 28 months ago. ( permalink )

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P/\UL  Pro User  says:

Me too!
Amazing Circle
Posted 27 months ago. ( permalink )

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pigpogm  Pro User  says:

Yay! This is rather too much fun. I've made a few of them, almost all using tuxcomputers' script.

Rusty Chain Amazing Circle
Posted 27 months ago. ( permalink )

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gromgull  Pro User  says:

Great tip! It really is fun.
"Amazing" Circle IV
Posted 26 months ago. ( permalink )

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cedricmesnage says:

indeed! :-)




Posted 26 months ago. ( permalink )

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Bill in STL  Pro User  says:

Thanks, Flatfield. This really is fun, and hard to stop.
Waterlily Magic Circle
and another
Stained Glass Magic Circle
and another
Chihuly Arbor Magic Circle
Posted 26 months ago. ( permalink )

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Flavio Pastor  Pro User  says:

My first try, this was (is) a movie theatre marquee

Marquesina circular

A Sunflower

gisasol

Thnak you very much for the tip!
Originally posted 26 months ago. ( permalink )
Flavio Pastor edited this topic 26 months ago.

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gmlittauer says:

how does one add a pic to this thread? I assume the results in 'circles' depends on the original pic. must it be square?
Posted 26 months ago. ( permalink )

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tuxcomputers is a group administrator tuxcomputers says:

gmlittauer wrote:

how does one add a pic to this thread?
While looking at the photo page click the "All Sizes" link along the top, select a size, then in the box 1 that says "Copy and paste this HTML into your webpage:" ....ahhh......copy and paste that into this thread.
Posted 26 months ago. ( permalink )

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gmlittauer says:

Thanks...like this? pic was my cat in pool house
circle is a little of this & a little of that. must start writing down my fancy moves ;^)
cat in pool room-2429
Posted 26 months ago. ( permalink )

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lilith penguin  Pro User  says:

This is a fantastic script! This is what I manged to create in just a few moments!

Posted 26 months ago. ( permalink )

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alebedenko says:

Thanks, Flatfield! Great technique!
Posted 26 months ago. ( permalink )

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carolspears says:

This is really cool. I had no idea that there was so much GIMP going on here at Flickr.

"1a) Copy the square selection, and chose Edit : Paste as New to make this selection into a new image."

<Image>/Layer/Transparency/Add Alpha Channel
or
<Layers>/Add Alpha Channel

should fix the problem with the background color getting into the polar mapping....
Posted 24 months ago. ( permalink )

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tuxcomputers is a group administrator tuxcomputers says:

Seeing this thread reminds me, I need to check that my scripts work in the 2.3 version.
Posted 24 months ago. ( permalink )

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behindthemoment says:

Yes it does!
Posted 23 months ago. ( permalink )

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tuxcomputers is a group administrator tuxcomputers says:

Yeah I know it is because after I made that comment I went and made it compatible, it wasn't though.

I have also updated the script, I have learnt quite alot about scheme/Script-fu since then and cleaned up the code in all of my scripts to make them more robust. The last update for this script was the 7th August and you can get version 1.4 here.

I have also written up a tutorial on scripting here, it's true, if you want to know a subject better teach it to someone else.
Posted 23 months ago. ( permalink )

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nitram rabnud says:

thanks for the script tuxcomputers
just been having a play
I am now having so much fun with those circles :-D
Posted 23 months ago. ( permalink )

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jambowl  Pro User  says:

And here is one from me.


Originally posted 23 months ago. ( permalink )
jambowl edited this topic 23 months ago.

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jambowl  Pro User  says:

And another one:)



Posted 23 months ago. ( permalink )

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Ate My Crayons  Pro User  says:

Fun!

Angi's Circle
Posted 23 months ago. ( permalink )

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Swobodin  Pro User  says:

Dandelion
Predicting the future
Originally posted 23 months ago. ( permalink )
Swobodin edited this topic 23 months ago.

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tuxcomputers is a group administrator tuxcomputers says:

he he, this Amazing circles script might be my most used script, it was certainly the easiest to write.
Posted 23 months ago. ( permalink )

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Ate My Crayons  Pro User  says:

I very much appreciate your contributions.
Angela
Posted 23 months ago. ( permalink )

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tuxcomputers is a group administrator tuxcomputers says:

I appreciate that such a fantastic program is available at all and am just trying to give something back. I can't write code to save my life but I can understand how programmers think and translate that into "normal" speak.
Posted 23 months ago. ( permalink )

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JMBull  Pro User  says:

I tried to do this but it comes out with black around the edges. All of yours look like a ball with nothing around it. Any ideas what I am doing wrong?
Posted 19 months ago. ( permalink )

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JMBull  Pro User  says:

Is this right? I wasn't sure, I tried to do what you said at the top of the page.
sphere
Posted 19 months ago. ( permalink )

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Matrix Cowboy  Pro User  says:

JMBull, you for got to turn off "to polar" in the first step.... try again.\


Posted 19 months ago. ( permalink )

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kabbisa  Pro User  says:

hey... its a very funny way of working with the pictures!!!

here my two circles:

from: imatge de platja... i el mar?

i got:
cercle1

and then, from: a be ce dario

i got:
cercle2

it's really fun!!
Posted 19 months ago. ( permalink )

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JMBull  Pro User  says:

How about this one?

sunrise teardrop
Posted 19 months ago. ( permalink )

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Tom Devine says:

A "transformed" fish

my attempt
Posted 19 months ago. ( permalink )

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veee man says:

My first one:


Posted 19 months ago. ( permalink )

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