// Draws concentric rings running out from // the center of the image window. // Based on the bullseye.js script distributed // with Kas Thomas' JavaScript Editor plugin at // http://rsb.info.nih.gov/ij/plugins/javascript.html requires("1.29m"); w = 512; h = 512; start = getTime(); xcenter = w/2; ycenter = h/2; run("New...", "name='Bulls Eye' type='32-bit RGB' width="+w+" height="+h); for (y=0; y