[gdal-dev] Gdal2tiles in Gdal18 and creating KMZ files

[Vincent Schut]

Roland,

not really an answer to your question, but note that - with a recent 
gdal - you can also create kmz by using the kmlsuperoverlay output 
format, e.g.:

gdal_translate -of kmlsuperoverlay <infile> out.kmz

your infile need be a rgb or rgba format (if you want to maintain 
transparency, add '-co format=png' to the gdal_translate command, 
otherwise jpeg's will be created for the tiles).

Regards,
Vincent.

On 02/17/2011 06:28 PM, Roland Duhaime wrote:
> Thanks Brian,
>
> I have reviewed OSGeo4W\bin\gdal2tiles.py and specifically line 1597
> containing the href tag to the png file:
>
> <Icon>
> <href>%(ty)d.%(tileformat)s</href>
> </Icon>
>
> I was curious if someone had any idea on how to modify this href tag to
> include the relative path as Brian suggests below.  I see that the
> appropriate path is already included in the name tag if the .kml is
> changed to .png.  Any ideas on the best approach would be appreciated.
> Also, is this relative path something that should be added to the
> general release to support kmz compression?
>
> Thanks,
> Roland
>
>
>
>
> On Wed, Feb 16, 2011 at 5:35 PM, brian <rush at winkey.org
> <mailto:rush at winkey.org>> wrote:
>
>     Roland
>
>
>     the problem is in /12/1211/2558.kml line 26
>
>     <href>2558.png</href>
>
>     this should be a relative path from the root of the zipfile not from
>     2558.kml
>
>     Brian
>
>
>
>     On Wed, 2011-02-16 at 15:14 -0500, Roland Duhaime wrote:
>      >
>      > I am following the instructions for creating one KMZ file that are
>      > posted here:
>      >
>      > http://trac.osgeo.org/gdal/wiki/UserDocs/Gdal2Tiles
>      >
>      > I am using gdal2tiles under the "gdal" package 1.8.  I have having
>      > success creating superoverlays and the related folder structure.
>       I am
>      > able to read the created doc.kml in Google Earth.  However, when I
>      > attempt to zip up the folder structure using 7zip and rename the file
>      > to test.kmz, the file doesn't read properly in Google Earth (GE).  GE
>      > zooms into the correct location but all I see is a red "x".
>      > Compressing the superoverlay structure seems to break the link
>     between
>      > the doc.kml file and the png files.  As an example, I have created a
>      > tiny (21 KB)  example and placed it here:
>      >
>      > http://www.edc.uri.edu/Personal/roland/test.kmz
>      >
>      > I am curious if someone had some insight.
>      >
>      > All the Best,
>      > Roland
>      >
>      >
>      >
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