[mapserver-dev] Improved support for (styled) dashed lines in Mapserver - RFC?

[Daniel Morissette]

Now that our rendering expert has spoken in favor of this addition, I am 
comfortable standing behind it as well.  ;)


On 11-10-27 05:04 AM, thomas bonfort wrote:
> I agree the geomtransform isn't best suited for this.
> Provided the current behavior of centering a symbol on a line too
> short to accomodate for GAP is preserved, and given that the
> enhancement brings no backwards incompatibility, I would be in favor
> of adding it.
>
> --
> thomas
>
> On Tue, Oct 25, 2011 at 09:35, Havard Tveite<havard.tveite at umb.no>  wrote:
>> Dear Mapserver developers,
>>
>> An overwhelming silence...  Since I have a positive attitude to
>> life, I assume that the silence means that this is not
>> controversial at all, and that everyone agrees that this would
>> be a valuable addition to the Mapserver rendering capabilities.
>> :-)
>>
>> For those that have not read the document (and need to be
>> convinced):
>> The suggested new parameter "INITIALGAP" is present in the SLD
>> specification!
>> Current status is that it is not possible to render all SLD line
>> patterns using map file parameters.
>>
>> Mapserver needs this capability.  An alternative to introducing
>> "INITIALGAP" might be to make GEOMTRANSFORM more capable (trimming
>> could be an option for lines), but I think that "INITIALGAP" is so
>> useful that it is worth to introduce a new parameter for it.
>> "INITIALGAP" would also be applicable to area fill patterns (while
>> I think this is problematic with GEOMTRANSFORM).
>>
>> Håvard
>>
>> On 9/29/2011 11:36 AM, Håvard Tveite wrote:
>>>
>>> The document is now on the wiki:
>>>
>>>
>>> http://trac.osgeo.org/mapserver/raw-attachment/wiki/Suggestions-Enhancements/dashed-lines-rfc.pdf
>>>
>>> (page http://trac.osgeo.org/mapserver/wiki/Suggestions-Enhancements)
>>>
>>> Comments, please!
>>>
>>> Håvard
>>>
>>> On 9/29/2011 5:20 AM, Steve Lime wrote:
>>>>
>>>> Sorry for the delay in responding (been away from email)... I'd start
>>>> by posting the document you developed to the MapServer wiki and
>>>> sharing that. From there an RFC could be built...
>>>>
>>>> Steve
>>>>
>>>> On Tue, Sep 27, 2011 at 3:49 AM, Havard Tveite<havard.tveite at umb.no>
>>>> wrote:
>>>>>
>>>>> Dear Mapserver developers,
>>>>>
>>>>> A recent thread ("Abandoned railroad symbol") on the
>>>>> mapserver-users mailing list has given me a reason for
>>>>> bringing up the (lack of) support for styled dashed lines in
>>>>> Mapserver.
>>>>>
>>>>> I have prepared a one page document that could be made into
>>>>> an RFC, if needed.
>>>>>
>>>>> In the document, it is argued that a new STYLE parameter
>>>>> INITIALGAP is needed (ticket #3879), and that STYLE->     GAP
>>>>> must specify the centre to centre distance between the
>>>>> symbols (ticket #3867).
>>>>>
>>>>> How to proceed?
>>>>>
>>>>>
>>>>> Håvard Tveite
>>>>>
>>>>> --
>>>>> Håvard Tveite
>>>>> Department of Mathematical Sciences and Technology, UMB
>>>>> Drøbakveien 31, POBox 5003, N-1432 Ås, NORWAY
>>>>> Phone: +47 64965483 Fax: +47 64965401 http://www.umb.no/imt/
>>>
>>
>> --
>> Håvard Tveite
>> Department of Mathematical Sciences and Technology, UMB
>> Drøbakveien 31, POBox 5003, N-1432 Ås, NORWAY
>> Phone: +47 64965483 Fax: +47 64965401 http://www.umb.no/imt/
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>>
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-- 
Daniel Morissette
http://www.mapgears.com/
Provider of Professional MapServer Support since 2000