4.13.1 Syntax of image map file

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.	None	--
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	Displays a map file 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.

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