Re: [Playerstage-developers] (long) vectormap interface, postgis driver and related topics

[Paul O. <new...@ki...>]

On Wed, 20 Feb 2008, Toby Collett wrote:

> we resolved our quirk, the new method of extracting the wkb returns extended
> wkb intsead of standard wkb which we didnt support at our end. All sorted
> now.
>
> Toby
I don't have much experience with GEOS C library so I couldn't find how 
to include SRID to new geometries created by GEOSGeom_createLineString() 
call. Do you know how to do this? I've tried to use GEOSSetSRID() call, 
but whatever I set, GEOSGeomToWKB_buf() creates WKB with SRID set to -1. 
The only workaround I see now is to create geometry table like this:
SELECT AddGeometryColumn('public', 'obstacles', 'geom', -1, 'LINESTRING', 
2);
so it will add constraint: "enforce_srid_geom" CHECK (srid(geom) = -1)

Paul

>
> On 19/02/2008, Paul Osmialowski <new...@ki...> wrote:
>>
>>
>>
>> On Tue, 19 Feb 2008, Toby Collett wrote:
>>
>>> If you wish to contribute these utilities to the player project submit a
>>> tarball of a vectortools directory that builds in the player utils
>> directory
>>> and it should be no problem to include it in player. Thanks for all your
>>> work on this stuff, we have one quirk with the latest patch to postgis
>> at
>>> our end, but will let you know once we have done some more debugging at
>> our
>>> end.
>>>
>>> Toby
>>>
>> I hope it will be that simple adding new utils to Player distro, I'll try
>> to do that soon.
>> I have copied vectortools to one more place since vlab.pjwstk.edu.pl has
>> problems with network connection and I don't know how long it would last.
>> That's the new place: http://king.net.pl/playercontrib/vectortools
>> What is the quirk you have mentioned in your message?
>>
>> Paul
>>
>>  > On 18/02/2008, Paul Osmialowski <new...@ki...> wrote:
>>>>
>>>>> 1. vec2map plugin - requires vectormap and provides regular map - it
>>>> does
>>>>> real-time vectormap to map conversion. It was intented to provide both
>>>>> grid and vectors, unfortunately, vector fields of regular map
>> interface
>>>> is
>>>>> broken PROBABLY AT XDR LEVEL and probably it is caused by new-style
>>>>> dynamic memory management (list of vector segments is a dynamic
>> thing).
>>>>> *** THIS SHOULD BE FIXED by someone familiar with Player's XDR logic
>>>> ****
>>>>
>>>> ****** There wasn't any error really, it was my mistake! Now vec2map
>> works
>>>> fine, and it is the first map interface driver I know that can handle
>>>> PLAYER_MAP_REQ_GET_VECTOR request. New version of both vectortools and
>>>> vectest is available here:
>> http://vlab.pjwstk.edu.pl/~vlabdemo/vectortools
>>>>
>>>> Cheers,
>>>> Paul
>>>>
>>>>
>>>>
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