AddHandler imap-file .map
 

You can specify the image map data in following three formats:

shape name specification value coordinate shape name specification value "descriptive text" coordinate shape name specification value coordinate "descriptive text"

"descriptive text" denotes the explanation sentence when map file menu is displayed and coordinate denotes the coordinates of images.

Table 4-15 describes the shape name and table 4-16 describes the specification value:

Table 4-15 Specification format of shape name and coordinates

Shape name	Meaning	Specification of coordinates	Explanation of coordinates
base	Specifies base of a relative URL in a map file.	None	--
default	Specifies a link, when figure name is not related to poly, circle, and rect, and point is also not specified.
poly	Specifies a polygon having 3 to 100 sides.	x1,y1 x2,y2 ... xn,yn	Every coordinate location of polygon (coordinate for 3 to 100 sides)
circle	Specifies a circle. The circle specifies a center point and one point on circumference.	x1,y1 x2,y2	Coordinates of center point and one point on circumference
rect	Specifies a rectangle. The rect specifies 2 points of opposite corners.	x1,y1 x2,y2	Coordinates of 2 points of opposite corners
point	Specifies a point. The point nearest to the cursor is valid.	x1,y1	Point

Legend:

--: Not applicable.

#

Even if (0,0) is included in the coordinates specification, if you point the coordinates (0,0) of image map image by mouse pointer, the map file menu is displayed.

Table 4-16 Specification values

Specification values	Meaning
URL	Specifies the link destination. The base and ImapBase directives are enabled in the case of a relative directory.
map	Displays a map file menu.
menu
referer	Responds with the status code 302 Found.
nocontent	Responds with the status code 204 No Content. Valid for other than base.
error	Responds with the status code 500 Server Error. Valid for other than base.

The operations to use the image map are as follows:

1. Set the following directives in the httpsd.conf file. Execute the image map when .map extension name is specified in URL.
   

   AddHandler imap-file .map 

   (Define the imap-file handler in the file extension .map)
   
2. Define a link destination in the file with the extension defined above.
3. Describe the following HTML syntax in HTML document.
   

    
   <A HREF="/directory name/map file name"><IMG SRC="image data name" ISMAP></A>
    

The following figure shows an example of image map file definition and actual display:

Figure 4-13 Example of image map filedefinition

In this example, if you click on the part specified with poly, the following map file menu is displayed:

If the character set used in the map file menu differs from the default character set (ISO-8859-1), characters will become garbled in the map file menu display. In this case, specify the character set used in the map file menu in the HWSImapMenuCharset directive.