[postgis-users] Re: [postgis-devel] Proposal for supporting Extrude, Tesselate, and Altitudemode options in PostGIS KML generator

Martin Davis mbdavis at refractions.net
Mon Feb 18 14:37:05 PST 2008

Ugh.  Requiring complicated combinations of bit fields strikes me as 
being pretty error prone.

What about providing a string parameter which can supply the various 
options in a human-readable format? 

E.g. "extrude=1 tesselate=0 altitudeMode=clampToGround"

Easy to read, easy to parse, easy to extend...

Paul Ramsey wrote:
> I hope others are testing this out...
> I have some aesthetic concerns with how you are passing arguments, I 
> wonder if there is a more elegant way do to it.  I feel like requiring 
> a precision argument in order to do the other options would be 
> preferable to the "size of precision" hack to distinguish between 
> options and precision.  Others may disagree.
> P.
> On 14-Feb-08, at 11:01 AM, Eduin Carrillo wrote:
>> Add the possibility to customize KML code produced by PostGIS with 
>> altitude mode  (altitudeMode), allow lines and paths to follow the 
>> terrain (tessellate), and  how to connect primitive to the ground 
>> (extrude).
>> http://code.google.com/p/postexperiments/wiki/Extrude_Tesselate_and_Altitudemode_Support 
>> http://code.google.com/p/postexperiments/issues/detail?id=1
>> =
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Martin Davis
Senior Technical Architect
Refractions Research, Inc.
(250) 383-3022

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