Trace+Fill

Post questions on how to use or achieve an effect in Inkscape.
User avatar
chief80
Posts: 29
Joined: Sun Nov 06, 2011 3:18 am

Trace+Fill

Postby chief80 » Sat Feb 04, 2012 11:00 am

Hello again. I have another question. I would like to trace an image into inkscape using the "Shift+Alt+B" method. I know how to conduct this perfectly fine, but i was wondering if there was a way to just fill the entire thing with black so you can just see the outline. Is there a way to do this? Thank you. :)

User avatar
brynn
Posts: 10309
Joined: Wed Sep 26, 2007 4:34 pm
Location: western USA
Contact:

Re: Trace+Fill

Postby brynn » Sat Feb 04, 2012 1:29 pm

Do you mean fill an object or objects in the image with black before you perform the trace, to make it easier to trace? Or do you mean have the trace ignore the colors and fill the object or objects with black?

Well my answer to either is 'I'm not sure'. Another member suggested using a raster graphics program and adjusting the contrast until the subject (portrait in that case) was black and white, before performing the trace. I don't know how well that might work, but it seems a reasonable concept.

And you probably can adjust the settings in the Trace Bitmap dialog, to make the object/subject turn out black after the trace. It would just take some experimenting with the settings.

User avatar
chief80
Posts: 29
Joined: Sun Nov 06, 2011 3:18 am

Re: Trace+Fill

Postby chief80 » Sat Feb 04, 2012 2:56 pm

I apologize if I was unclear. Basically what I want to do is fill in the shape below entirely with black so you can just see the outermost outline.

Image

:D

User avatar
druban
Posts: 1917
Joined: Fri Nov 20, 2009 10:48 pm

Re: Trace+Fill

Postby druban » Sat Feb 04, 2012 6:42 pm

for this particular problem I would not use use trace bitmap.
1. with the bitmap in inkscape draw a rectangle (actually any shape will work) around it completely enclosing it with no fill and a stroke, making sure that there is a nice distance in between.
2. Using the bucket tool and appropriate settings in the control bar click in the area between the drawing and the outer stroke.
3. If you get a stroked object just swap fill and stroke .. either now or later... Note that the bucket is more accurate at higher zooms. In the interest of full disclosure , I actually zoomed pretty far in and clicked five times with the bucket and unioned the shapes. 4. Break the resulting shape apart and delete the outer path of the two. I then did a simplify to reduce the number of nodes. Then some node editing was done, but not absolutely necessary.
bitmap.png
bitmap.png (95.21 KiB) Viewed 2342 times


I've attached the result for comparison's sake...
Attachments
wing.svg
(8.22 KiB) Downloaded 173 times
Your mind is what you think it is.

User avatar
chief80
Posts: 29
Joined: Sun Nov 06, 2011 3:18 am

Re: Trace+Fill

Postby chief80 » Sun Feb 05, 2012 9:52 am

Thank you so much Druban!! Exactly what I needed!!

User avatar
brynn
Posts: 10309
Joined: Wed Sep 26, 2007 4:34 pm
Location: western USA
Contact:

Re: Trace+Fill

Postby brynn » Sun Feb 05, 2012 12:55 pm

Oh wow, that's awesome druban!
I never would have thought to use the Paint Bucket tool on a raster image. But it works brilliantly!


Return to “Help with using Inkscape”