Geometry Boost List: [ggl] Snapping

Subject: [ggl] Snapping
From: Barend Gehrels (Barend.Gehrels)
Date: 2009-11-22 13:48:47

Hi Stephen,

>     You mean something like: ggl::snap(geometry_from, geometry_to,
>     snapped_geometry);
>
>
> Something like that yeah. Most of the actual work involved is in 
> finding points on a line that are at the snapping tolerance distance 
> from "snap to" feature.

Ah, of course, specifying a tolerance is essential :-)

>
> I'll have a look at the extension model then and see how this can fit. 
> For me a snap feature is just as important as a "buffer" feature.

OK, you'll need the account then, I'll send it to you privately.

>
> poly/poly breaks down to multiple line/line snaps. line line is a 
> complicated beast because all parts of the line that are within a snap 
> tolerance of the "snap to" line get snapped. I'll produce some 
> diagrams of this and post them.
I see. Points/lines might be snapped potentially to multiple lines or 
holes. I'll wait your diagrams.

Regards, Barend

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