[mapserver-users] kml superoverlays

Jeff McKenna jmckenna at gatewaygeomatics.com
Thu Jan 14 15:28:20 PST 2016


On 2016-01-14 6:55 PM, Even Rouault wrote:
>
> Hum I didn't try with MapServer, but looking at the GDAL request it does in the logs, I tried
> something close with gdal_translate:
>
> gdal_translate /vsicurl/http://mw1.google.com/mw-earth-vectordb/kml-samples/mv-doqq.kml out2.tif -outsize 312 300
>
> and the good or bad news is that fails on both Ubuntu and Windows (well at least on wine/Linux) with
> a similar error to yours:
>
> VSICURL: Start download for http://mw1.google.com/mw-earth-vectordb/kml-samples/mv-070501/422.kml
> VSICURL: Stop download for http://mw1.google.com/mw-earth-vectordb/kml-samples/mv-070501/422.kml
> VSICURL: Start download for http://mw1.google.com/mw-earth-vectordb/kml-samples/mv-070501/422.JPEG
> VSICURL: Stop download for http://mw1.google.com/mw-earth-vectordb/kml-samples/mv-070501/422.JPEG
> GDAL: GDALOpen(/vsimem/kmlsuperoverlay/6_0x1d0f878, this=0x1d12bd0) succeeds as JPEG.
> GDAL: GDALDefaultOverviews::OverviewScan()
> GDAL: GDALDefaultOverviews::OverviewScan()
> ERROR 5: /vsimem/kmlsuperoverlay/3_0x1cf4ce8, band 1: Illegal nBlockXOff value (2) in GDALRasterBand::TryGetLockedBlockRef()
>
> ERROR 5: /vsimem/kmlsuperoverlay/3_0x1cf4ce8, band 1: Illegal nBlockXOff value (2) in GDALRasterBand::GetLockedBlockRef()
>
>
> Not sure why you get different results.
>
> Mind opening a GDAL ticket about that ? I'm debugging something else tricky right now ;-)
>

GDAL ticket: https://trac.osgeo.org/gdal/ticket/6311

-jeff



-- 
Jeff McKenna
MapServer Consulting and Training Services
http://www.gatewaygeomatics.com/






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