Re: Geographical map updating.

by "David Clapper" <dclapper(at)clioassociates.com>

 Date:  Fri, 4 Aug 2000 14:03:00 -0400
 To:  "jalal" <the_jalal(at)yahoo.com>,
<hwg-techniques(at)mail.hwg.org>,
"Karin Ransdell" <kransdell(at)squishedmosquito.com>,
<alan(at)i-bird.com>
 References:  westhost
  todo: View Thread, Original
Jalal,

How does the PHP GDI library differ from Perl's GD.pm module (or is it PHP's
interface to Boutell's gd library)?

David Clapper
Vice-President & Chief Architect
Clio Associates
70 Pavilion St.
Rochester, NY 14620  USA
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----- Original Message -----
From: jalal <the_jalal(at)yahoo.com>
To: <hwg-techniques(at)mail.hwg.org>; Karin Ransdell
<kransdell(at)squishedmosquito.com>
Sent: Friday, August 04, 2000 11:04 AM
Subject: Re: Geographical map updating.


>
> PHP includes a bunch of modules which will do things like create gifs
> from raw data. It makes use of what is known as the GDI library. So,
> assuming that there is a (large) set of data points stored in the
> database, presumably a set of coordinates and a bunch of info about
> colors and areas, it would be straight forward to create an image from
> them. There is a full set of primitive graphics routines available.
>
> It will also create and manipulate JPEG and PNG files.
>
> Of course, it will take a bit of coding to get it all going, but
> certainly a lot less that 25,000. Hey, I'll do it for less 8-}
>
> There is also an article in the latest Linux Journal about the GRI
> library, which could also be used for drawing charts and maps.
>
> HTH
> -- jalal --
>
> On Fri, 4 Aug 2000 08:53:31 -0500, Karin Ransdell wrote:
>
> >
> >Now I have a question myself.  PHP might work fine for pulling the maps
out
> >of a database and plopping it in the page, but I understood the original
> >question differently.  Will PHP actually *generate* the maps from a blank
> >image, some city names and location labels?  (For comparison, like
> >NetObjects, Publisher, and several others generate button graphics with a
> >built-in image editor.)
> >
> >Take a look at
> >http://www.i-bird.com/Location/PolUnitUSFL.htm
> >for example.
> >
> >I understood that Alan wants to get away from creating all these maps "by
> >hand" and prefers something a little more like mapblast.com.  That seems
> >like it would take some *serious* GPS on the backend, hence the $$$$
quotes.
> >
> >While we all know that PHP will pull those completed maps out, my
question
> >is whether or not it will merge all the separate bits of data to create
an
> >image.  Can anybody comment on that?
> >
> >Okay, I admit that it boggles my mind ;)
> >
>
>

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