[geos-devel] Re: Coordinate copy removal in ElevationMatrix

Paul Ramsey pramsey at refractions.net
Fri Dec 9 13:53:36 EST 2005

Well, doing so makes it harder for geos to become an  
"infrastructural", which can be maintained in isolation from the  
projects that depend on it.  Imagine a geos RPM as part of a Linux  
distribution for example.  If we break ABI at regular intervals we  
force upgrades of not only geos but all other dependent programs as  
well at the same time.

That said, I agree.  It is still relatively "early days" for geos,  
development-wise, and improved performance is quite an important  
requirement, judging from the comment profile on this list.


On 9-Dec-05, at 9:49 AM, Charlie Savage wrote:

> Note sure what others think, but I would strongly vote to change  
> GEOS's API as needed to improve its performance.
> Charlie
> strk at refractions.net wrote:
>> Oh, BTW, this is in the HEAD branch, and required another break in  
>> the ABI. I'll never stress this too much: GEOS API is too wide to  
>> allow for performance improvements and reducing it would open up  
>> many speedup possibilities. --strk; On Thu, Dec 08, 2005 at  
>> 03:27:29PM +0100, strk at refractions.net wrote:
>>> I removed another copy of CoordinateSequence in ElevationMatrix.  
>>> This removes useless copies of all Coordinates in output.
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