From: Goswin von Brederlow <goswin-v-b@web.de>
To: "Richard W.M. Jones" <rich@annexia.org>
Cc: Francois Berenger <berenger@riken.jp>, caml-list@inria.fr
Subject: Re: [Caml-list] Fwd: interval trees
Date: Sat, 11 Feb 2012 18:38:56 +0100 [thread overview]
Message-ID: <87wr7tb77z.fsf@frosties.localnet> (raw)
In-Reply-To: <20120210182914.GA17498@annexia.org> (Richard W. M. Jones's message of "Fri, 10 Feb 2012 18:29:14 +0000")
"Richard W.M. Jones" <rich@annexia.org> writes:
> 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.
Anyone have something like this but for non-overlapping intervals and
allowing interval insertion and removal with merging and spliting of the
internaly used intervals?
MfG
Goswin
next prev parent reply other threads:[~2012-02-11 17:39 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
2012-02-11 17:38 ` Goswin von Brederlow [this message]
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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