setting variable value in mapfile {Scanned}

[Siki Zoltan]

Hi,

AFAIK you cannot create variable in the map file, but you can use the
cpp (the c preprocessor) to create macro substitution.
For example
#define HIGHWAY_COLOR 123 43 112
#define HIGHWAY_MAX_SCALE 1600

...
	MAXSCALE HIGHWAY_MAX_SCALE
...
	COLOR HIGHWAY_COLOR
...

then
cpp map_file_with_defines > generated_map_file

Bye
Zoltan

On Mon, 30 Jan 2006, Jerl Simpson wrote:

> Hello,
> 
> I know I can easily use variables in a mapfile, when the value comes from
> cookies or a GET request.  But what about setting a variable inside the
> mapfile itself?
> Something like:
> 
> HIGHWAY_MAX_SCALE=2000000
> HIGHWAY_MIN_SCALE=90000
> 
> or
> 
> HIGHWAY_COLOR="255 250 115"
> 
> then be able to use something like:
> 
> COLOR  %HIGHWAY_COLOR%
> 
> in a CLASS
> 
> 
> That way if I decide I want to change a color, I can change it once, and
> have it take affect for everywhere else?
> 
> Thanks,
> 
> 
> Jerl
>