Make a half circle to match width/height of full circle

[kirbydoo]

Hi all,

With this project, I want to know how to make the black rectangle match the exact dimensions of the circle so that it looks like a small portion of the circle is black.

Just like this picture -

Thank you!!

[pixxxelschubser]

You can use

1. the Pathfinder Panel or
2. the ShapeBuilder Tool or
3. Live Paint Tool.

Please use it for your own designs / labels.

[kirbydoo]

Thank you. I can assure you that I am only making these images for personal use. They look much better on on my phone/computer screen than the low-quality scans you can find on other sites.

[Jacob Bugge · Accepted solution]

kirbydoo,

As I (mis)understand it, you can create a copy of the original circle beneath the coloured parts and above the black rectangle, then ShiftSelect the black rectangle and Ctrl/Cmd+7 to make a Clipping Mask.

The black rectangle could have been made as large as the dark grey one forming the background.

[kirbydoo]

Thank you Jacob. That's actually what I ended up doing. I also did a little bit of adjusting to the half circle to get it to fit 100% into the larger circle.

[Jacob Bugge]

You are welcome, kirbydoo.

May I ask which way you came from the full original circle to the partial coloured one (since adjustment became needed)?

[kirbydoo]

I actually had to invert the colors of each circle. I made the orange circle black and the black circle orange. This was because when I would apply the clipping mask, the half circle would become orange. Once that was decided, I placed the half circle over the larger one and switched the colors back. For some reason, the half circle didn't quite fit in the larger one, so I had to adjust its position on the x axis because I kept seeing part of the orange circle around the black circle's edge.

[Jacob Bugge]

kirbydoo,

It sounds as if you placed the copy circle above the orange one rather than beneath it (you can see the stacking order in the Layers palette); and I wonder whether one of them has a thin stroke.