If the placement of the circle is not critical, and you can make a new one on a blank (transparent) layer, make one, and skip to step 2.

1) Double-click the background layer (white circle on black background) and name it layer 0. Then double click to the right of the name (layer 0). Up should pop the blending dialog. Pull the black "blend if" slider at the bottom of the dialog under "this layer" to somewhere near the middle of the slider bar (you should see the black bg vanish). Now with the alt key pressed, break the black slider apart the two sections apart. Where they end up is not critical, just make them separate. Hit ok. Then, use the key command ctrl-j to dupe the layer. Then hit ctrl-e to merge it down. You should now have your white circle (with a black fringe) over transparent checkerboard.

2) Make sure View menu... snap is checked. Now draw guides that bound the circle (top bottom left right) and put two intersecting in the center of the circle. These guides should "snap" into place.

3) With the polygon lasso tool, you should now be able to draw triangles that are precisely 1/8 of the circle. Draw one triangle, then with ctrl-alt-shift held down, click on the layer icon in the layers palette (you should see an x in a box next to your cursor as you hover over the icon). This should clip your selection. Now just open the pic you like, select all copy and go back to your new circle doc and edit... paste into. Repeat for all 8 pie pieces.

4) Make a new layer, move it underneath your circle layer and fill it with black.

< http://www.pixentral.com/show.php?picture=1tHMruqWn2okMPQyxf txgFTc3tgpM0>

< http://www.pixentral.com/show.php?picture=1qUbgUBPqoSQEOLcZI bU945yIXmSL>

Emma Beane

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Best way divide a circle