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

[Alan Boudreault]

If anyone at the code sprint is interested to see the performance and/or 
test, let me know.

On 13-03-25 03:22 PM, Alan Boudreault wrote:
> Dev,
>
> I would like to do the inclusion this week. A few comments about the
> current implementation:
>
> - For now, I think the contourlayer use will be kept, we will need to
> think more about hybrid layers for mapserver 6.4.
> - Tileindex are not supported (yet)
> - Postgis raster are not supported (yet)
>
> http://mapserver.org/trunk/development/rfc/ms-rfc-85.html
>
> I'll do the call for vote tomorrow morning if there's no objection.
>
> Alan
>
> On 12-09-21 03:22 AM, Havard Tveite wrote:
>> I am not sure if contour generation should be a job for Mapserver,
>> but if we decide to implement it, I think there is a need for
>> processing directives for "smoothing" / generalisation.
>> It should be possible to specify the level of "smoothing" for the
>> DEM as well as for the resulting contours.
>> Smoothing levels could be specified as the maximum deviation
>> allowed from the "original".
>> Contour "smoothing" / generalisation needs to pay attention to
>> neighbouring contours / topology, so that contours don't cross
>> after smoothing.
>>
>> Possible processing directives for a DEM tolerance of 25 units
>> (xyz) and contour tolerance of 10 units (xy):
>> PROCESSING "DEM_TOLERANCE"=25"
>> PROCESSING "CONTOUR_TOLERANCE=10"
>> They could be made scale dependent in the way that is suggested
>> in the RFC.
>> "TOLERANCE" might not be the best word - "GENERALIZATION"
>> is also be a possibility.
>>
>> It would also be good to choose an approach that will not
>> make it impossible to use a point layer (xyz or xy+height
>> attribute) as a data source.
>>
>> Håvard
>>
>> On 9/20/2012 5:40 PM, 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
>> _______________________________________________
>> mapserver-dev mailing list
>> mapserver-dev at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/mapserver-dev
>
>


-- 
Alan Boudreault
http://www.mapgears.com/