[mapserver-dev] Request for review/comments on RFC 85 (Contour Layer Rendering)

[Brent Fraser]

Alan,

     Looks very interesting, especially the concept of a "hybrid" layer 
(raster in, lines out).  Using CONNECTIONTYPE to specify the contouring 
of the raster seems like overloading the meaning of that object 
somewhat, but I don't really have a better solution. One of the problems 
of using CONNECTIONTYPE is that I won't be able to get my raster from 
PostGIS (unless i go through OGR?).

   We have a few of other hybrid (+/-) layers:
        tile index
        GRID
        Chart

each specified in their own way.  I think I would prefer the TILEINDEX 
way of referencing another layer to get the details of the input:

LAYER
     NAME "dem"
     TYPE raster
     CONNECTIONTYPE "postgis"
     DATA "myRasterTable"
END
LAYER
     TYPE line
     DATA "dem"  # the name of the input layer
     PROCESSING "Contour"
     :

or it just may be more confusing and not worth the flexibility...

Best Regards,
Brent Fraser

On 9/20/2012 9:40 AM, Alan Boudreault wrote:
> Hi devs,
>
> I'd like to request some review on a pending RFC regarding support for 
> contour layer rendering.
>
> Please see 
> https://raw.github.com/mapserver/docs/master/en/development/rfc/ms-rfc-85.txt
>
> The official rfc page should be updated in about a hour.
>
> http://mapserver.org/trunk/development/rfc/ms-rfc-85.html.
>
> Thanks,
> Alan