From: "Richard W.M. Jones" <rich@annexia.org>
To: Francois Berenger <berenger@riken.jp>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Fwd: interval trees
Date: Fri, 10 Feb 2012 18:29:14 +0000 [thread overview]
Message-ID: <20120210182914.GA17498@annexia.org> (raw)
In-Reply-To: <4F346DB9.2070303@riken.jp>
On Fri, Feb 10, 2012 at 10:07:05AM +0900, Francois Berenger wrote:
> -------- Original Message --------
> Subject: interval trees
> Date: Thu, 09 Feb 2012 17:30:21 +0900
> From: Francois Berenger
> To: batteries-discuss@lists.forge.ocamlcore.org
> CC: biocaml@googlegroups.com
>
> Hello,
>
> I need to use an interval tree.
>
> Biocaml has one, batteries have imap/iset, nice!
>
> However, I have intervals of reals, not integers. :(
>
> I want to build the tree (once), then query it with a real number
> (many times) like in: which intervals contain the query real number?
>
> Should I convert my floats to ints (by sorting them then ranking) before
> inserting them into some existing interval tree for integers?
> I am not so concerned about the pre-processing time.
>
> Should I write from scratch?
I wrote a segment tree (integers, not floats), which is similar. It
wasn't very hard. The code is here if it helps:
http://git.annexia.org/?p=virt-mem.git;a=blob;f=lib/virt_mem_mmap.ml;hb=HEAD
Rich.
--
Richard Jones
Red Hat
next prev parent reply other threads:[~2012-02-10 18:29 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-10 1:07 Francois Berenger
2012-02-10 18:29 ` Richard W.M. Jones [this message]
2012-02-11 17:38 ` Goswin von Brederlow
2012-02-11 17:49 ` Eliot Handelman
2012-02-13 9:13 ` Sebastien Ferre
2012-02-15 1:28 ` Francois Berenger
2012-02-15 15:21 ` Goswin von Brederlow
2012-02-15 17:22 ` Edgar Friendly
2012-02-16 2:48 ` Francois Berenger
2012-02-16 2:32 ` Francois Berenger
2012-02-16 2:42 ` Francois Berenger
2012-02-16 8:34 ` Goswin von Brederlow
2012-02-16 12:20 ` John Carr
2012-02-16 10:21 ` Gabriel Scherer
2012-02-17 0:59 ` Francois Berenger
2012-02-17 8:11 ` Christophe Raffalli
2012-02-11 20:49 ` Edgar Friendly
2012-02-11 23:54 ` Philippe Veber
2012-02-11 10:54 ` Philippe Veber
2012-02-11 17:33 ` Goswin von Brederlow
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