Re: Function? How to find if xy values are within a coordinates of polygon?
| From: | David Robley | Date: | Thu, 12 Jul 2001 00:56:36 +0000 |
| Subject: | Re: Function? How to find if xy values are within a coordinates of polygon? | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-57525@lists.php.net to get a copy of this message | ||
On Thu, 12 Jul 2001 05:45, SED wrote:
> I'm making a map (image) which you can click on and the script finds
> the area-code based on where you click on the map.
>
> Before I spend time on writing my own code to find if xy values are
> within a certain coordinates of a polygon, do you know of any build in
> function to do it? I have browsed lightly through the PHP-manual but
> not found any.
>
> Thanks,
>
> SED
If you use the image as a submit button (<INPUT TYPE=image NAME=map
SOURCE="whatever.gif"> then you can read the x and y co-ords of the mouse
as $map_x and $map_y
--
David Robley Techno-JoaT, Web Maintainer, Mail List Admin, etc
CENTRE FOR INJURY STUDIES Flinders University, SOUTH AUSTRALIA
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