Re: [mapserver-users] deployed mapping engine comparison stats

[Steve Lime]

That's probably a result of what drove MapServer development early on.
MapServer itself is just a binary (CGI/FCGI) that can do stuff as simple as
making simple inset maps or scalebars to distributing maps and data using
OGC services with plenty of variations in between. Each call is discrete
and there are no long running processes. A single deployment could serve
dozens of wide-ranging purposes and in that situation a catalog makes no
sense. Those "purposes" often only make sense with the context of the
application that uses them. Closest thing to a catalog would be
GetCapability responses. Then of course you have MapScript applications
that would be difficult, if not impossible, to identify as being related to
MapServer.

On Sat, Jun 6, 2020 at 11:56 AM Jonathan Moules <
jonathan-li...@lightpear.com> wrote:

> Hi Folks,
>
> (Disclosure: I'm the person behind that blog post.)
>
> > I wonder how this statistics would look like if MapServer had a built-in
> web administration interface like the other competing applications.
>
> The fact MS is so high without it shows it may not be that important, at
> least not to the core audience.
>
> I think the biggest differentiator in the stats between the top three may
> be the fact that MapServers don't have any sort of catalog of services or
> other way to find other services on the box. By which I mean, ArcGIS Server
> allows you to crawl it and get all of the public services and datasets.
> GeoServer if there are namespaces (their way of grouping things into
> services) you can go up a level and see what the root is serving, thus
> potentially finding more datasets and another service that way (but only
> one). But MapServer doesn't have a mechanism like that apparently (I asked
> on this list a couple years ago), which means that it's hard to know if
> I've found everything on a specific box. That's the biggest catch with the
> MapServer stat at least.
>
> Cheers,
>
> Jonathan
>
>
> On 2020-06-05 20:28, Tamas Szekeres wrote:
>
> Very interesting comparison.
> I wonder how this statistics would look like if MapServer had a built-in
> web administration interface like the other competing applications.
>
> Best regards,
>
> Tamas
>
>
> Jeff McKenna  ezt írta (időpont: 2020.
> jún. 5., P, 18:09):
>
>> Something I noticed this morning: MapServer users might be interested in
>> recently published statistics of deployed mapping engine types (ArcGIS,
>> GeoServer, MapServer/MapCache, QGIS Server, etc.) :
>> https://www.geoseer.net/blog/?p=2020-06-04_geospatial_server_software
>>
>>
>> -jeff
>>
>>
>>
>>
>> --
>> Jeff McKenna
>> MapServer Consulting and Training Services
>> co-founder of FOSS4G
>> http://gatewaygeo.com/
>>
>>
>>
>>
>>
>>
>>
>>
>>
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Re: [mapserver-users] MAXSCALEDENOM using runtime var

[Scott]

Thanks for the response.

My mapserv binary is in a wrapper so I have control over dubious 
features I may (intentionally) introduce.


With that said, if it's not readily available and only available via 
modification, someone more knowledgeable had good reason. I'll think of 
a different approach.


Thanks again!

On 6/16/20 1:56 PM, Steve Lime wrote:
Hi Scott: Nope, the various scale denominator properties are not mutable 
via URL parameters. It's a relatively simple change to make it happen 
(just modify maplexer.l (look for the keyword of choice) and rebuild) 
but I'm not sure it's a great idea since you could be opening up some 
performance headaches for both your mapping box and backend data 
sources. I mean, a user could essentially affect at what level high 
density data could be drawn at, so imagine asking for high density roads 
at a global scale from a remote PostgreSQL/PostGIS source.


--Steve

On Tue, Jun 16, 2020 at 3:36 PM Scott > wrote:


Is it possible to set MAX(MIN)SCALEDENOM using a runtime variable?

Example:

...
MAXSCALEDENOM %maxscaledenom%
...



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Re: [mapserver-users] MAXSCALEDENOM using runtime var

[Steve Lime]

Hi Scott: Nope, the various scale denominator properties are not mutable
via URL parameters. It's a relatively simple change to make it happen (just
modify maplexer.l (look for the keyword of choice) and rebuild) but I'm not
sure it's a great idea since you could be opening up some performance
headaches for both your mapping box and backend data sources. I mean, a
user could essentially affect at what level high density data could be
drawn at, so imagine asking for high density roads at a global scale from a
remote PostgreSQL/PostGIS source.

--Steve

On Tue, Jun 16, 2020 at 3:36 PM Scott  wrote:

> Is it possible to set MAX(MIN)SCALEDENOM using a runtime variable?
>
> Example:
>
> ...
> MAXSCALEDENOM %maxscaledenom%
> ...
>
>
>
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[mapserver-users] MAXSCALEDENOM using runtime var

[Scott]

Is it possible to set MAX(MIN)SCALEDENOM using a runtime variable?

Example:

...
MAXSCALEDENOM %maxscaledenom%
...



--
www.postholer.com
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