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

[Brent Fraser]

Mike,

   That was my thinking; I was trying to see if we could avoid using 
CONNECTIONTYPE to solve a problem we ran into with TILEINDEX. (when we 
only had the DATA 'shapefile' method of specifying the source).

   And it got me thinking of the other kinds of hybrid processing might 
do in the future:
DEM -> vector lines (contouring)
DEM -> image (hillshade, etc)
image -> DEM (photogrammetry, not likely!)
raster -> vector point symbols( vector field rendering, )
  :

Or maybe it is better left to WPS...

Best Regards,
Brent Fraser

On 9/20/2012 11:20 AM, Smith, Michael ERDC-CRREL-NH wrote:
> Brent,
>
> I wonder if you could use postgis rasters (or oracle rasters) with this
> the same way tileindexes are done. With 2 layers. See
> https://github.com/mapserver/mapserver/wiki/MapServer-TILEINDEXes-with-Data
> base-RASTERS
>
> Mike
>
>
>
>
> On 9/20/12  12:36 PM, "Brent Fraser" <bfraser at geoanalytic.com> wrote:
>
>> Hmm,  I see we've already started down the CONNECTIONTYPE road with RFC
>> 78 (CONNECTIONTYPE UVRASTER)...
>>
>> Best Regards,
>> Brent Fraser
>>
>> On 9/20/2012 10:26 AM, Brent Fraser wrote:
>>> 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-8
>>>> 5.txt
>>>>
>>>> The official rfc page should be updated in about a hour.
>>>>
>>>> http://mapserver.org/trunk/development/rfc/ms-rfc-85.html.
>>>>
>>>> Thanks,
>>>> Alan
>>>
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>>
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