Geometry Boost List: Re: [geometry] union of 2 polygons is wrong.AND an now a DISTANCE bug

Subject: Re: [geometry] union of 2 polygons is wrong.AND an now a DISTANCE bug
From: Zachary Deretsky (zach.deretsky_at_[hidden])
Date: 2012-02-03 19:04:15

Barend,
thank you.

Here is one more, which I fail to explain:

#include <boost/geometry.hpp>
#include <boost/geometry/geometries/point_xy.hpp>

int main()
{
  typedef boost::geometry::model::d2::point_xy<int> point_xy;

  point_xy p1(2544000, 528000);
  point_xy p2(2768040, 528000);

  double dist = boost::geometry::distance(p1, p2);

  std::cout << "p1 " << boost::geometry::dsv(p1) << std::endl;
  std::cout << "p2 " << boost::geometry::dsv(p2) << std::endl;
  if(224040 != (unsigned int)dist) {
    std::cout << "INCORRECt distance " << dist << std::endl;
    return 1;
  } else {
    std::cout << "Correct distance " << dist << std::endl;
    return 0;
  }
  return 0;
}

On Fri, Feb 3, 2012 at 2:19 PM, Barend Gehrels <barend_at_[hidden]> wrote:

> Hi Zachary,
>
>
>
>> I bumped into another bug when I was trying to find out whether a point
>> is on a line, here is the code:
>>
>>
> Has been fixed.
>
> This (and previous fix with the large integers) will be included in Boost
> 1.49, because the release branch is reopened, for bugfixes. So I'm glad
> with that. Thanks again for the report.
>
>
>  I hope your cross product is using long long rather than doubles.
>>
>>
> We will work on that but that is not a fix but rather an enhancement, so
> that goes for 1.50
>
> Regards, Barend
>
>
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