[geos-devel] Comparing two QuadEdge objects

[vishal tiwari]

hey,

just figured out, that it's a pointer check. It's going to an infinite loop
because of some error in previous function call.

Thanks,
Vishal


On 13 July 2013 11:57, vishal tiwari <hi.vishal123 at gmail.com> wrote:

> Hey strk,
> I tried to compare them my pointers as:  qe != (QuadEdge*)&startQE, but
> this condition is always true and goes into an infinite loop.
>
>
> On 13 July 2013 11:43, Sandro Santilli <strk at keybit.net> wrote:
>
>> On Fri, Jul 12, 2013 at 08:52:24PM +0530, vishal tiwari wrote:
>> > This part of code in getVoronoiCellPolygon, :
>> >
>> > QuadEdge startQE = qe;
>> >     do {
>> > //      Coordinate cc = circumcentre(qe);
>> >         // use previously computed circumcentre
>> >         Coordinate cc = qe.rot().orig().getCoordinate();
>> >       cellPts.add(cc);
>> >
>> >       // move to next triangle CW around vertex
>> >       qe = qe.oPrev();
>> >     } while (qe != startQE);
>> >
>> > The while condition is comparing two QuadEdge objects for not being
>> equal.
>> > So i need to override the != operator. How do it do it?
>>
>> I suspect that's a by-ref check, can you verify ?
>> Linking between QuadEdges are by pointer, aren't them ?
>>
>> --strk;
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>>
>
>
>
> --
> Vishal Tiwari
> Undergraduate
> Computer Science and Engineering
> Lab for Spatial Informatics
> IIIT-Hyderabad
>



-- 
Vishal Tiwari
Undergraduate
Computer Science and Engineering
Lab for Spatial Informatics
IIIT-Hyderabad
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