<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>On Jun 1, 2009, at 5:03 PM, Thomas Goddard wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: -webkit-monospace; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "> There are two ways to go about this. One is to use the color command<br><br><span class="Apple-tab-span" style="white-space: pre; "> </span><a href="http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/color.html">http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/color.html</a><br><br>say 20 times in a script to gradually increase the transparency to 1.<span class="Apple-converted-space"> </span><br>You can specify the color as 4 values r,g,b,a in Chimera 1.4 daily<span class="Apple-converted-space"> </span><br>builds (but not in 1.3).<span class="Apple-converted-space"> </span></span></blockquote><br></div><div>A similar approach that does work in the 1.3 release is to color your ribbons with a color you defined with the 'colordef' command. You can then keep redefining the color to change its transparency and the ribbons will change accordingly.</div><div><br></div><div>--Eric</div><div><br></div><br></body></html>