[gdal-dev] KML's extendedData not visible

[maplabs at light42.com]

On Tue, 24 Aug 2010 01:02:33  0200, Volker Fröhlich  wrote:
>
  > I've got a question concerning KML and OGR. I noticed, that QGIS 
doesn't show
  > data within KML's <extendedData>. QGIS reads KML via OGR. QGIS' Jürgen E. 
  > Fischer pointed out, ogrinfo doesn't show that data either. 
 
Hi Volker-
 
  reading KML is limited, in both the KML driver and the newer LIBKML 
driver. 
There are several categories of reasons for this, here are a couple I 
can think of now:
 
  * the internal format of ogr, Simple Features
  * the variety of possible KML input
  * KML as a display format, and not a data interchange format
 
>
  > The file in question was even written by ogr2ogr and the XML looks 
perfectly
  > fine to me. 
 
KML output is legal XML
both drivers output valid KML
 
>
  > Why doesn't OGR reveal the flat information in <extendedData>? 
Would the other
  > KML driver (libkml) help?
  >
 
  no, the LIBKML driver does not do what are looking for, either, as 
far as I know
I would suggest as a work-around, to hold your data in some other format,
and just use KML as display, on demand. 
 
hth
  -Brian
 

  > Volker Fröhlich
 
==
Brian Hamlin
planetwork.net
OSGeo California Chapter
(415) 717-4462 cell