Re: [Playerstage-developers] libplayerwkb (proposal)

[Toby C. <tco...@pl...>]

That must have been introduced in geos 3.1 then, I have 3.0 installed

Toby

2009/6/4 Paul Osmialowski <new...@ki...>

> That's odd, since it compiles fine for me. I've looked at geos_c.h and it
> is defined:
> typedef struct GEOSContextHandle_HS *GEOSContextHandle_t;
>
> What version of geos do you have? GEOS2 definitely does not have this
> type, as threaded safety was added in GEOS3.
>
> I've unmasked ~x86 mask in Gentoo and was able to install GEOS3:
>
> $ geos-config --version
> 3.1.0
>
> make sure geos_c.h is actually included while preprocessing playerwkb.h
> file.
>
> Paul
>
> On Thu, 4 Jun 2009, Toby Collett wrote:
>
> > I have added the files you sent me the other day to svn, currently the
> > libplayerwkb lib is commented out in the top level CMakeLists.txt as it
> > doesnt build for me, seems to be unable to find GEOSContextHandle.
> >
> > player_trunk/libplayerwkb/playerwkb.h:20: error: expected ?=?, ?,?, ?;?,
> > ?asm? or ?__attribute__? before playerwkbprocessor_t?
> > player_trunk/libplayerwkb/playerwkb.h:35: error: expected ?=?, ?,?, ?;?,
> > ?asm? or ?__attribute__? before ?player_wkb_create_processor?
> >
> > Can you have a look at latest svn trunk and make sure I have added the
> right
> > files?
> >
> > 2009/6/2 Toby Collett
> > <tco...@pl... <tcollett%2Bp...@pl...><
> tcollett%2Bp...@pl... <tcollett%252...@pl...>>
> >>
> >
> >> okay, I will look into it.
> >>
> >> Toby
> >>
> >> 2009/6/2 Paul Osmialowski <new...@ki...>
> >>
> >> It would be much easier for me to release a patch iff libplayerwkb is
> >>> already there (in the trunk)
> >>>
> >>> Paul
> >>>
> >>> On Tue, 2 Jun 2009, Toby Collett wrote:
> >>>
> >>>> Hi Paul,
> >>>> I know this is a bit of a pain, but are you able to collect all your
> >>>> vector/wkb related patches together into a single set that is able to
> be
> >>>> cleanly applied to svn trunk and we can try apply them.
> >>>>
> >>>> The idea of the get_feature_data accessor method was partially to aid
> >>> with
> >>>> swigged interfaces I think which have some difficulty accessing
> dynamic
> >>>> sized arrays...
> >>>>
> >>>> Toby
> >>>>
> >>>> It has two problems:
> >>>> 1. Definition and size of geom field is different when GEOS is
> installed
> >>>> at Player building time, this is bad.
> >>>> 2. It does not give any information about wkb for this geometry and
> its
> >>>> size in bytes (needed for new implementation of
> player_wkb_process_wkb()
> >>>> function)
> >>>>
> >>>> It can be easily changed: geom field should be dropped, all required
> >>>> informations are in layers_data field (layers_data[i].features[j].
> >>>>>
> >>>>> wkb).
> >>>>>
> >>>>> The playerc_vectormap_get_feature_data() function that returns
> GEOSGeom
> >>>>> can be simply dropped from libplayerc, playerv can be easily
> rewritten
> >>> not
> >>>>> to use this (see one of my big not-accepted patches some months ago,
> >>> I'm
> >>>>> still using this code for my experiments). Whole idea of this
> function
> >>> is,
> >>>>> well, strange, it returns pointer to the field in device proxy, the
> >>>>> nature of libplayerc suggests this function should be declared void
> and
> >>>>> the data should be accessed through the pointer to the device proxy
> >>>>> structure (nevermind, this function should be dropped for real).
> >>>>>
> >>>>> Bounding box function is not needed here: all informations about
> >>> boundary
> >>>>> area is provided in field called 'extent' by subscribed driver (see
> >>> code
> >>>>> above taken from postgis driver).
> >>>>
> >>>
> >>>
> >>>
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> >>
> >>
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