[Gimp-user] Trace an image?

2012-03-25 Thread gerard82
 I'm trying to trace around an image to create a line drawing.  The
 object I'm tracing has a lot of curves in it so using the Pencil Tool.
 Also, I've used the Paths Tool and then clicked stroke path.  That's
 all fine and well but it's taking FOREVER to trace the picture.


 Since the image has a lot of curves is there a tool or gadget in Gimp
 that can provide a smooth curve, say, around a circle?


Use the Intelligent scissors if the image is suitable, then the
quick mask to adjust the selection, then stroke.

There is a foreground select tool which may do a similar job.

Also there are filters which may assist, for example, the Photocopy
filter may render a simpler image to trace.



 --
Owen


-- 
gerard82 (via gimpusers.com)
You might also try Filters  Edge Detect and the pick the one that's best 
suited.
Gerard.
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Re: [Gimp-user] Benchmarking Gimp/GEGL

2012-03-25 Thread Kevin Cozens

On 12-03-20 06:26 PM, Partha Bagchi wrote:

I clearly stated all the information in the post. I did ask what your
performance. Why don't you post that?


Were you asking me why I didn't post any performance data? If so, it is 
because I see little to no value in the results you would get and I have 
other things to do than wait a half hour or more for the test to run (if I 
have enough memory available to run the test).


--
Cheers!

Kevin.

http://www.ve3syb.ca/   |Nerds make the shiny things that distract
Owner of Elecraft K2 #2172  | the mouth-breathers, and that's why we're
| powerful!
#include disclaimer/favourite | --Chris Hardwick
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[Gimp-user] Question

2012-03-25 Thread Alicia Kemp
Can I use GIMP to make EarthMandalas a la http://www.earthmandalas.com/

We don't have photoshop and thought GIMP might be a good alternative. Thoughts 
welcome.

Thanks

Scanned for The Silkwood School by
(http://netboxblue.com/)

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Re: [Gimp-user] Question

2012-03-25 Thread Alexandre Prokoudine
On Mon, Mar 26, 2012 at 9:16 AM, Alicia Kemp wrote:

 Can I use GIMP to make EarthMandalas a la http://www.earthmandalas.com/

Calling it a mandala is a bit of exxageration :) Nevertheless, yes --
you can do that with GIMP

Selecting the first sector from the photo is going to be difficult
with GIMP. I'd recommend using Inkscape to draw the circle's sector
with the Circle tool (Ctrl+Shift+drag to draw a perfect circle, then
drag the right handle and input the exact angle you need in the top
toolbar with the tool's settings). Copy the sector to clipboard, in
GIMP go to the Paths dockable dialog, right-click for contextual menu
and use Paste a Path command. Then select the newly pasted path,
move it to desirable location and convert it to selection )bottom
toolbar of the Paths dialog).

Before rotating, move each new piece of the mandala so that its
corner with the smallest radius is right on top of a likewise corner
of the adjacent piece. Then when you rotate, there will be a handle in
the center of the layer which is the rotation center. Move it to that
very corner with the smallest radius. That way you will be able to
make perfect alignment of pieces.

That's beginning to sound like a complete tutorial mostly because the
author pf the original tutorial at http://www.earthmandalas.com did a
lousy job at explaining things. Otherwise you'd be able to repeat 80%
of the actions as is.

Alexandre Prokoudine
http://libregraphicsworld.org
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