Geometry Boost List: Re: [geometry] Is the de9im class usable yet

Subject: Re: [geometry] Is the de9im class usable yet
From: Adam Wulkiewicz (adam.wulkiewicz_at_[hidden])
Date: 2014-05-15 20:15:26

Hi Aaron,

Aaron Josephs wrote:
> I can't seem to figure out how to use the de9im class in boost 
> geometry (posted SO question here 
> http://stackoverflow.com/questions/23684869/is-the-boost-de-9-im-struct-usable). 
> Maybe I'm just missing something but is it even in a usable state yet, 
> an example of a point within a polygon calculation would be greatly 
> appreciated.

It doesn't make sense to discuss on StackOverflow in the comments so I'd 
like to move the discussion here.

You said:
"Already using the rtree, I only ask this question because the JTS 
implementation of |within| using a prepared geometry is killing 
|boost::geometry::within|, and JTS is in java"

I'm curious how did you compare the libraries?
What was the test case?
Many tests for Points within only one Polygon?
If yes, then have you tried to first calculate the bounding box of a 
Polygon and use it for the first check to eliminate this difference 
between libraries?
Are the benchmarks available somewhere?

Regards,
Adam