[Dune-devel] Checking whether a given point is contained in a given element

[Dedner, Andreas]

Perhaps we should just remove that method from the interface and provide a
utility method/class in dune-geometry for that purpose - we already have a
similar hierarchic search utility in dune-grid...
Andreas
________________________________
From: dune-devel-bounces+a.s.dedner=warwick.ac.uk at dune-project.org [dune-devel-bounces+a.s.dedner=warwick.ac.uk at dune-project.org] on behalf of Oliver Sander [sander at igpm.rwth-aachen.de]
Sent: 09 November 2012 12:28
To: dune-devel at dune-project.org
Subject: Re: [Dune-devel] Checking whether a given point is contained in a given element

Am 09.11.2012 13:21, schrieb Jö Fahlke:
While we're talking about checkInside() and possibly reconsidering its interface, I want to highlight another shortcoming: currently it is impossible to specify a tolerance, neither for including nor for excluding the boundary of the geometry. Where needed, I'm currently solvin this by scaling the coordinate obtained from local() with 1+epsilon around the barycenter of the reference element before sticking it into checkInside(), but that is far from ideal... Regards, Jö.

I actually have my own private implementation of checkInside for that very reason.
An official implementation with a tolerance parameter would be nice.



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