[geos-devel] RE: TaggedLineSegment

[Martin Davis]

I probably did this for simplicity of programming.  I would think you
can replace the subclass relationship with a uses relationship.

Martin Davis, Senior Technical Architect
Vivid Solutions Inc.      www.vividsolutions.com
Suite #1A-2328 Government Street Victoria, B.C. V8T 5G5
Phone: (250) 385 6040 - Local 308 Fax: (250) 385 6046


> -----Original Message-----
> From: strk [mailto:strk at keybit.net] 
> Sent: April 12, 2006 9:19 AM
> To: Martin Davis
> Cc: geos-devel at geos.refractions.net
> Subject: TaggedLineSegment
> 
> 
> Martin, I'm porting the jts.simplify package
> to GEOS and I have a design question.
> 
> Is it a problem if we avoid to have TaggedLineSegment
> derive from LineSegment ? This is probably not a problem
> with JTS, but in GEOS LineSegment is composed by 2 real 
> Coordinates rather then pointers and we probably don't need 
> the overhead associated with this. Moreover this would 
> require LineSegment to become a polymorphic class whereas 
> currently it is not (in head at least, this would be the 
> first derivate of it). 
> 
> 
> --strk;
> 
>  /"\    ASCII Ribbon Campaign
>  \ /    Respect for low technology.
>   X     Keep e-mail messages readable by any computer system.
>  / \    Keep it ASCII. 
> 
>