Re: [eigen] Eigen rocks |

[ Thread Index | Date Index | More lists.tuxfamily.org/eigen Archives ]

*To*: eigen@xxxxxxxxxxxxxxxxxxx*Subject*: Re: [eigen] Eigen rocks*From*: Ricard Marxer Piñón <email@xxxxxxxxxxxxxxxx>*Date*: Fri, 27 Feb 2009 17:15:58 +0100*Dkim-signature*: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to :content-type; bh=zp+0Fi87D7Wjb26JsFGDG0z6ywYNyAaJmB0XecxwcMg=; b=WJehwsG9kX7XOzmjHi8aKTw4Qy4xD448aebFqIdr+EmvFvHtTgimu9yBhKjR51PvU4 I+wGgYD2aFBww7pjXTDgeY36AUii4rTQ/PUgaDnRkZ83Jwt0Vmr6L7l1ddn2fQkMc5Jt +HImEpB+yXXhu4ZFeBa9l9Dkmqakwldjx7cSU=*Domainkey-signature*: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; b=G74MJF8FqVsvydHF3cFLO981cMr8Saql5qq/PY2V3PyRmnLkHI+Z7TSH+toxppmUIZ IwxgAfFHP3bWfE6qSKWQtReLzqGMPK0DYBaQD1K6RjMOvEZCc7fShuJ/+8Lpbj/ylAQN 8Tk8fcJXa2nnx3VADQA850qSZwtxlQMnylyOw=

I don't know for 1) and 2). I know

but for 3) and 4) you want the Map class that Eigen provides:

Search for Map in the tutorial:

http://eigen.tuxfamily.org/dox/TutorialCore.html#TutorialCoreSpecialTopics

Look at the Map class:

http://eigen.tuxfamily.org/dox/classEigen_1_1Map.html

or the Map() static functions from the Matrix class:

http://eigen.tuxfamily.org/dox/classEigen_1_1Matrix.html

On Fri, Feb 27, 2009 at 5:07 PM, Rohit Garg <rpg.314@xxxxxxxxx> wrote:

Hi all,

To devs and contributors,

EIGEN ROCKS

On a more sober note,

1) Is eigen multithreaded? I think not because there is no

documentation on how to decide the number of threads.

2) Quaternion rotations only take Vector4f, then why are they not

vectorized? Or is it on the informal todo list. It isn't on the formal

one.

3) How do I access the memory hidden behind the class interface of the

Matrix/Vectors. People may need it to perform some other stuff using

some other libraries. Eigen is great but doesn't solve all the world's

problems yet.

4) And yes it's converse. I wish to set the elements of a

matrix/vector from a given pointer. Can that be done?

I am pretty sure that 1) and 2) will be done, butt what about 3) and 4).

Regards,

--

Rohit Garg

http://rpg-314.blogspot.com/

Senior Undergraduate

Department of Physics

Indian Institute of Technology

Bombay

--

ricard

http://www.ricardmarxer.com

http://www.caligraft.com

**Follow-Ups**:**Re: [eigen] Eigen rocks***From:*Benoit Jacob

**References**:**[eigen] Eigen rocks***From:*Rohit Garg

**Messages sorted by:**[ date | thread ]- Prev by Date:
**[eigen] Eigen rocks** - Next by Date:
**Re: [eigen] Eigen rocks** - Previous by thread:
**[eigen] Eigen rocks** - Next by thread:
**Re: [eigen] Eigen rocks**

Mail converted by MHonArc 2.6.19+ | http://listengine.tuxfamily.org/ |