[gdal-dev] using gdal_translate with -dsco switch

Dane Springmeyer blake at hailmail.net
Wed Jan 9 18:04:06 EST 2008


do gdal utilities that convert to vector formats use the same drivers  
as ogr?

-dane


On Jan 9, 2008, at 2:05 PM, Brian Hamlin wrote:

> I think altitudeMode is for ogr2ogr using the KML driver.. thats  
> where I have used it
>  -Brian
>
> On Jan 9, 2008, at 1:33 PM, Dane Springmeyer wrote:
>
>> I am converting elevation data in Gtiff format to contours in KML  
>> format, but running into a usage problem when attempting to create  
>> 3D contours.
>>
>> I noted the discussion here about enabling correct 3D  
>> representation in Google Earth (This is a great addition):
>> http://trac.osgeo.org/gdal/ticket/1570
>> and the need to use driver specific name=value option for ogr2ogr  
>> of "-dsco AltitudeMode=absolute" here:
>> http://www.gdal.org/ogr/drv_kml.html
>>
>> When I attempt to use it with gdal_translate the utility simply  
>> returns the usage instructions. I'm guessing that either I am  
>> putting the flag in the wrong place or this option is not enabled  
>> in gdal_contour, even though I am able to successfully write KML  
>> with gdal_contour.
>>
>> I'm running GDAL 1.5.0b2 on mac os x. This works for me:
>> gdal_contour -f KML -i 5.0 blakely.tif  
>> five_meter_contours.kml               //Note: the -3d switch is  
>> left out intentionally since it does not seem to affect KML output
>>
>>
>> These do not:
>> gdal_contour -f KML -i 5.0 blakely.tif five_meter_contours.kml - 
>> dsco AltitudeMode=absolute
>> gdal_contour -f KML -dsco AltitudeMode=absolute -i 5.0 blakely.tif  
>> five_meter_contours.kml
>>
>> Anyone have ideas of the problem?
>>
>> Regards,
>>
>> Dane
>>
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>> gdal-dev at lists.osgeo.org
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