[gdal-dev] in memory KML

[Mano Marks]

Yes, we need to develop some more documentation. If you want to use
libkml in your app, we are answering questions on it in the KML
Developer Forum: http://groups.google.com/group/kml-support.

BSD license tends to be pretty liberal, that's why we used it.

On Wed, Apr 1, 2009 at 12:22 PM, Clay, Bruce <bclay at ball.com> wrote:
>
> LibKml can do the in memory file and a lot of other things but the documentation / examples are rather thin.  There is documentation that tells you what the parameters of a call are supposed to be but not to tell you when to use a given method.  They have several test apps but for the most part they only test a single class at a time.
>
> For example, I am trying to set the attributes in a kml message.  The leverage expat to do a lot of the xml stuff and the attributes seem to relate directly to the expat attributes and not to the way they are used when OGR creates a KML file.
>
> There are very few examples shown when I Google on the web for examples.
>
> All in all it looks quite capable but it takes a bit of digging to find out how to do things.
>
> Then there is the licenses issue.  I can use it in my app without problems but using it in an open source GDAL plug-in may be an issue.
>
> Bruce
>
> -----Original Message-----
> From: gdal-dev-bounces at lists.osgeo.org [mailto:gdal-dev-bounces at lists.osgeo.org] On Behalf Of Mano Marks
> Sent: Wednesday, April 01, 2009 3:13 PM
> To: Mateusz Loskot
> Cc: gdal-dev at lists.osgeo.org
> Subject: Re: [gdal-dev] in memory KML
>
> Seems like libkml would be a good candidate for handling KML in memory.
>
> On Wed, Apr 1, 2009 at 3:23 AM, Mateusz Loskot <mateusz at loskot.net> wrote:
>> Frank Warmerdam wrote:
>>>
>>> Clay, Bruce wrote:
>>>>
>>>> After a bit more digging I am not sure I asked the right question.
>>>>
>>>>
>>>> What I want to do is read feature information from a shapefile or other
>>>> data source and get a string that contains the feature information encoded
>>>> in KML that I can pass directly into Google Earth.  I know I can do this
>>>> operation is I open the shapefile write the KML data to disk then open the
>>>> kml file up with fopen then read it into memory and send it t Google Earth
>>>> but I would like to save the disk write the read operation.
>>>>
>>>>
>>>> Any thoughts?
>>>
>>> Bruce,
>>>
>>> I've skimmed the KML driver and there is no sign that it uses the VSI*L
>>> API for file access, so I don't see any way you can write results to a
>>> memory buffer without substantial recoding in the kml driver.
>>
>>
>> Looks like a candidate for proposal for the GSoC 2009
>>
>> Best regards,
>> --
>> Mateusz Loskot, http://mateusz.loskot.net
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>
>
>
> --
> Mano Marks
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-- 
Mano Marks
Geo Developer Advocate
http://twitter.com/ManoMarks
Join me for Google I/O, Google's biggest Developer Conference, in San
Francisco, May 27th and 28th, 2009
http://code.google.com/events/io/