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<TITLE>RE: [postgis-devel] Location Of LWAlgorithms</TITLE>
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<P><FONT SIZE=2>I haven't taken that thorough a look at the code base, so perhaps I shouldn't be speaking.<BR>
<BR>
But I would think that there are many functions that deal across geometry types<BR>
or functions where most of the functionality is the same for different types.<BR>
<BR>
So I fear if we tried to make it a rule, we would quickly violate it simply out of efficiency. Would seem better to separate the algorithmic nature from the constructive nature.<BR>
<BR>
I know I'm supposed to be an object oriented programmer -- so perhaps the OO gods will shoot me where I stand for saying this.<BR>
<BR>
To me geometries are dead objects to be worked on. Functions are the focal point as far<BR>
as spatial is concerned.<BR>
<BR>
<BR>
<BR>
<BR>
<BR>
-----Original Message-----<BR>
From: postgis-devel-bounces@postgis.refractions.net on behalf of Paul Ramsey<BR>
Sent: Tue 12/23/2008 2:12 PM<BR>
To: PostGIS Development Discussion<BR>
Subject: [postgis-devel] Location Of LWAlgorithms<BR>
<BR>
I've started an lwalgorithm.c file. However, I see some functions are<BR>
living with the types they work against. ptarray_substring, for<BR>
example. By a similar token, area should move to lwpoly and lwmpoly<BR>
implementations for area. Anyone have a problem with a general rule of<BR>
locating methods with their objects, or should we keep the object<BR>
files restricted to constructors/accessors and put all the<BR>
calculations elsewhere?<BR>
<BR>
P.<BR>
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