先画一根螺旋线
http://static.flickr.com/82/233394637_96ef4beb93_o.gif\" onload="function anonymous()
{
if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}
}" border="0" />
去掉中间几个节点
http://static.flickr.com/97/233394662_14e4ab041a_o.gif\" onload="function anonymous()
{
if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}
}" border="0" />
然后加粗描边
http://static.flickr.com/90/233394674_d7b83b04bf_o.gif\" onload="function anonymous()
{
if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}
}" border="0" />
用魔棒选定加粗了的螺旋线
http://static.flickr.com/82/233394684_5ecf856604_o.gif\" onload="function anonymous()
{
if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}
}" border="0" />
选区转换为路径
http://static.flickr.com/81/233394702_8efc4e70fb_o.gif\" onload="function anonymous()
{
if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}
}" border="0" />
变成这样的矢量图形
http://static.flickr.com/94/233394730_7dad061ad6_o.gif\" onload="function anonymous()
{
if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}
}" border="0" />
对这个图形加以调整
http://static.flickr.com/82/233394732_ad9293ec99_o.gif\" onload="function anonymous()
{
if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}
}" border="0" />
复制几个，分别加以调整，组合路径
http://static.flickr.com/85/233394749_fdaef588cc_o.gif\" onload="function anonymous()
{
if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}
}" border="0" />
去除中间的空隙
http://static.flickr.com/86/233394763_e75c779ba7_o.gif\" onload="function anonymous()
{
if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}
}" border="0" />
渐变填充，完工
http://static.flickr.com/79/233394609_3ae053d963_o.png\" onload="function anonymous()
{
if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}
}" border="0" />
最后这幅图是源文件。
原先以为可以用AI里那个卷曲工具画，试验了之后发现效果不太好，干脆就直接在FW里做，也不麻烦。
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