Geometry Boost List: [ggl] Intersection of linestring with polygon

Subject: [ggl] Intersection of linestring with polygon
From: Aleksandar Babic (aleksandarb)
Date: 2011-11-16 09:20:48

Hi,

It seems that the functionality for few combinations (also for some
other algorithms) is not yet implemented.

One approximation that you might try (may be valid approach from case to
case) is to try converting both geometries to the closest common
concept.
For example, try converting line and polygon to the linestring/ring and
the finding the intersection (might help with other algorithms as well).

Hope this helps.

BR
Aleksandar

On Mon, 2011-11-14 at 16:23 -0700, Mike Williams wrote:
> Hello,
> 
>  
> 
> I have successfully used boost::geometry::intersection to get the
> intersection of two polygons. How I want to get the intersection of a
> polygon and a line (the portion of the line that is internal to the
> polygon). When I call intersection(polygon, linestring,
> vector_of_linestring) I get compiler errors.
> 
>  
> 
> Could someone please advise me on how that can be accomplished.
> 
>  
> 
> Thanks,
> 
>  
> 
> Mike
> 
> 
> 
> .
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