[mapguide-users] Make a new operation: "calculate minimum path"

Zac Spitzer zac.spitzer at gmail.com
Sun Mar 1 21:51:00 EST 2009


you need a routing engine, pgroute is a good example of this

On Mon, Mar 2, 2009 at 1:56 AM, Ryan Northcott <rnorthcott at gmail.com> wrote:
> Sounds like more of a Math problem. Which amazingly, computers can do math
> better than anything else.
>
> Take a look here:
> http://www.springerlink.com/content/ux62418642458410/fulltext.pdf
>
> the resources in the back, and the theory is what you'll have to take from
> it to build your own shortest distance routes against your datasets.
>
> But you're going to probably be doing a lot of looping, and array
> loading/sorting. Finding any intersections, then at the end, you'll be
> building different routes, and if any valid route grows longer than your
> current route, you end the loop, and go build a new route until you'r out of
> route choices.
>
> That's my 2 cents into how I'd tackle it, but there is probably more
> sophisticated mathematical algorithms you need to look into.
>
> -north
>
> On Sat, Feb 28, 2009 at 3:29 PM, Sergio Nistal Calvo
> <serginistal at hotmail.com> wrote:
>>
>> Hello,
>>
>> I have a layer in a map that is about communication roads and I would like
>> to make a operation which is to calculate the minimum path. I do not know
>> how make it, any help is appreciated. I uses apache and php.
>>
>> Thanks.
>>
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Zac Spitzer -
http://zacster.blogspot.com
+61 405 847 168


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