HTML map标签
在Html中，给图像使用map标签，可以给图像的某个部分建立超连接，用法如下：
- <img src=img.gif usemap= "MAP-Name" >
- <map name="MAP-Name" >
- <area shape="rect|circle|poly" coords= "#" href= "url" >
- </map>
<img src=img.gif usemap="MAP-Name"> <map name="MAP-Name"> <area shape="rect|circle|poly" coords="#" href="url"> </map>
注:所有的坐标都是相对于图片左上角的
其中，坐标coords对各个shape的解释如下：
- shape= "rect" coords= "x1,y1,x2,y2" // (x1,y1)=Upper Left, (x2,y2)=Lower Right
shape="rect" coords="x1,y1,x2,y2" // (x1,y1)=Upper Left, (x2,y2)=Lower Right
即，当shape是矩形时，coords表示矩形左上及右下(x2, y2)的坐标
引用
shape="circle" coords="x,y,r" // (x,y)=Center, r=Radius
即，当shape是圆形时，coords表示圆中心点坐标(x, y)及半径
- shape= "poly" coords= "x1,y1,x2,y2,x3,y3..." // (x1,y1>=First Corner, (x2,y2)=Second Corner, ...
shape="poly" coords="x1,y1,x2,y2,x3,y3..." // (x1,y1>=First Corner, (x2,y2)=Second Corner, ...
即，当shape是poly多边形时，coords表示多边形所有顶点的坐标(x1,y1),(x2,y2),(x3,y3)...
注意：以上所有坐标都是相对于图形img.gif左上脚坐标而言的
以下是一个例子:
- <img src= "mapimg.gif" usemap= "#Face" >
- <map name="Face" >
- <area shape="rect" href= "page.html" coords= "140,20,280,60" >
- <area shape="poly" href= "image.html" coords= "100,100,180,80,200,140" >
- <area shape="circle" href= "new.html" coords= "80,100,60" >
- </map>
<img src="mapimg.gif" usemap="#Face"> <map name="Face"> <area shape="rect" href="page.html" coords="140,20,280,60"> <area shape="poly" href="image.html" coords="100,100,180,80,200,140"> <area shape="circle" href="new.html" coords="80,100,60"> </map>
下面是从360网站中摘下来的一个实例：
- <html>
- <body>
- <div align="center" ><img src= "city_map.gif" width= "740" height= "595" border= "0" usemap= "#Map" >
- <map name="Map" >
- <area shape="rect" coords= "613,103,659,129" href= "http://hao.360.cn/daxue/hlj.html" title= "黑龙江" target= "_blank" >
- <area shape="rect" coords= "604,153,641,172" href= "http://hao.360.cn/daxue/jl.html" title= "吉林" target= "_blank" >
- <area shape="rect" coords= "584,180,609,210" href= "http://hao.360.cn/daxue/ln.html" title= "辽宁" target= "_blank" >
- <area shape="rect" coords= "411,208,472,228" href= "http://hao.360.cn/daxue/nm.html" title= "内蒙" target= "_blank" >
- <area shape="rect" coords= "507,205,541,229" href= "http://hao.360.cn/daxue/bj.html" title= "北京" target= "_blank" >
- <area shape="rect" coords= "524,230,566,248" href= "http://hao.360.cn/daxue/tj.html" title= "天津" target= "_blank" >
- <area shape="rect" coords= "489,237,525,263" href= "http://hao.360.cn/daxue/hebei.html" title= "河北" target= "_blank" >
- <area shape="rect" coords= "526,271,567,290" href= "http://hao.360.cn/daxue/sd.html" title= "山东" target= "_blank" >
- <area shape="rect" coords= "454,261,486,284" href= "http://hao.360.cn/daxue/sx1.html" title= "山西" target= "_blank" >
- <area shape="rect" coords= "381,250,412,284" href= "http://hao.360.cn/daxue/nx.html" title= "宁夏" target= "_blank" >
- <area shape="rect" coords= "318,282,350,310" href= "http://hao.360.cn/daxue/qh.html" title= "青海" target= "_blank" >
- <area shape="rect" coords= "362,291,389,326" href= "http://hao.360.cn/daxue/gs.html" title= "甘肃" target= "_blank" >
- <area shape="rect" coords= "409,319,445,348" href= "http://hao.360.cn/daxue/sx2.html" title= "陕西" target= "_blank" >
- <area shape="rect" coords= "476,313,512,341" href= "http://hao.360.cn/daxue/henan.html" title= "河南" target= "_blank" >
- <area shape="rect" coords= "527,344,558,377" href= "http://hao.360.cn/daxue/ah.html" title= "安徽" target= "_blank" >
- <area shape="rect" coords= "558,328,585,356" href= "http://hao.360.cn/daxue/js.html" title= "江苏" target= "_blank" >
- <area shape="rect" coords= "591,341,631,370" href= "http://hao.360.cn/daxue/sh.html" title= "上海" target= "_blank" >
- <area shape="rect" coords= "564,371,597,403" href= "http://hao.360.cn/daxue/zj.html" title= "浙江" target= "_blank" >
- <area shape="rect" coords= "605,431,645,461" href= "http://hao.360.cn/daxue/tw.html" title= "台湾" target= "_blank" >
- <area shape="rect" coords= "194,374,239,395" href= "http://hao.360.cn/daxue/xz.html" title= "西藏" target= "_blank" >
- <area shape="rect" coords= "348,351,380,387" href= "http://hao.360.cn/daxue/sc.html" title= "四川" target= "_blank" >
- <area shape="rect" coords= "394,379,433,403" href= "http://hao.360.cn/daxue/cq.html" title= "重庆" target= "_blank" >
- <area shape="rect" coords= "465,365,511,387" href= "http://hao.360.cn/daxue/hubei.html" title= "湖北" target= "_blank" >
- <area shape="rect" coords= "511,401,542,430" href= "http://hao.360.cn/daxue/jx.html" title= "江西" target= "_blank" >
- <area shape="rect" coords= "466,408,498,439" href= "http://hao.360.cn/daxue/hunan.html" title= "湖南" target= "_blank" >
- <area shape="rect" coords= "397,418,433,454" href= "http://hao.360.cn/daxue/gz.html" title= "贵州" target= "_blank" >
- <area shape="rect" coords= "338,458,367,494" href= "http://hao.360.cn/daxue/yn.html" title= "云南" target= "_blank" >
- <area shape="rect" coords= "417,471,455,506" href= "http://hao.360.cn/daxue/gx.html" title= "广西" target= "_blank" >
- <area shape="rect" coords= "492,470,539,494" href= "http://hao.360.cn/daxue/gd.html" title= "广东" target= "_blank" >
- <area shape="rect" coords= "541,436,583,460" href= "http://hao.360.cn/daxue/fj.html" title= "福建" target= "_blank" >
- <area shape="rect" coords= "511,497,548,523" href= "http://hao.360.cn/daxue/xg.html" title= "香港" target= "_blank" >
- <area shape="rect" coords= "481,504,512,537" href= "http://hao.360.cn/daxue/am.html" title= "澳门" target= "_blank" >
- <area shape="rect" coords= "429,541,470,573" href= "http://hao.360.cn/daxue/hn.html" title= "海南" target= "_blank" >
- <area shape="rect" coords= "177,155,213,192" href= "http://hao.360.cn/daxue/xj.html" title= "新疆" target= "_blank" >
- </map>
- </div>
- </body>
- </html>