How to draw 3 overlapping circles with different colors?
How to draw 3 overlapping circles with different colors?
Question
Is there a free software to draw following in ubuntu? How to color the overlap zone? I am not able to figure this out in GIMP.
2014/06/02
Accepted Answer
You can use Inkscape. Basically, you’ll have to break the circles into several parts, one for each possible intersection of circles:
- Select two circles you want to create the intersection for.
- Use
Object → Intersection
(Ctrl + *
) to create the intersection. - Copy the intersection to the clipboard (
Ctrl + C
). - Undo the intersection operation (
Ctrl + Z
), which deletes the intersection object and restores the original circles. - Paste the intersection object in place (
Ctrl + Alt + V
, notCtrl + V
). - Colour the intersection.
- Repeat steps 1–6 for the remaining pairs of circles, and again on the three two-circle intersections (to create the middle intersection).
You might also want to use the difference operator (Ctrl + -
) on the outer circles to cut out the shape of the inner parts.
2014/06/01
Popular Answer
Indeed this is possible in gimp pretty easily.
- Create three circles with colors #ff0000, #00ff00 and #0000ff each to own layer with transparent background
- Add black background layer
- Position those circles as in your image
- Use Additive Blending mode for all of them
- Just remove black background if necessary
2014/06/02