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HomeWeb Front-endHTML Tutorial图像热点&图像映射 - 尼农小道

图像映射

图像映射也称为图像热点。

作用:

让同一张图片上的不同区域,可以实现多个不同的超链接功能。

图示:

图像映射三步走:

图像映射的实现需要三方面配合完成:

1、图像映射容器,就是一个img标签,需使用usemap属性与map标签建立联系

2、图像映射,就是一个map标签,需要使用name属性与map标签建立联系

3、热点区域,需要使用map标签的子标签area来建立热点区域

 

语法格式:

图像热点&图像映射 - 尼农小道

替代文字

 

属性介绍:

图像热点&图像映射 - 尼农小道需要使用的属性:

usemap:#map的名称

的属性:

    name:设置热点区域的名称

的常用属性:

shape:设置热点区域的形状

rect(矩形)、

circle(圆形)、

polygon(多边形)

coords:热点区域的位置坐标,根据shape的不同而不同。

对于rect,坐标为(x1,y1,x2,y2),(x1,y1)矩形左上角,(x2,y2)右下角

对于circle,坐标为(x,y,r),(x,y)圆心坐标,r为半径

对于polygon,坐为(x1,y1,x2,y2,…xn,yn),(xn,yn)为第n个顶点坐标

    

举例:

  1. 矩形

  1. 圆形

     

  2. 不规则多边形

     

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