## MASON-INTEREST-L@LISTSERV.GMU.EDU

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 Sender: MASON Multiagent Simulation Toolkit <[log in to unmask]> Date: Thu, 1 Oct 2015 12:20:14 -0400 MIME-version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) Reply-To: MASON Multiagent Simulation Toolkit <[log in to unmask]> Content-type: text/plain; charset=windows-1252 Subject: Re: VectorPortrayal2D: portraying vector fields From: Sean Luke <[log in to unmask]> In-Reply-To: Message-ID: Content-Transfer-Encoding: 8bit Parts/Attachments: text/plain (16 lines)
```Do you think the dot should be at the center of the cell?  That is, a maximum-length line would be half the width of the cell?  Or should the center of the cell be the center of the line?

If speed is at issue, a small orthogonal line, like a T, would be a bit faster than a dot; might do that.

Sean

I also note from below that your class is basically a replacement for OrientedPortrayal2D: it can be used (and from the picture, appears to be used) in ContinuousPortrayal2D, for example.

On Oct 1, 2015, at 12:13 PM, Christian Meyer <[log in to unmask]> wrote:

> You are right about Oriented2D and Scaled2D, they should not be
> implemented by Double2D. I am just using a line with a dot at the end to portray the directions without any transformations. That is quite a different approach which might not fit well into VectorPortrayal2D because it uses its own shape.
>
> I attached my class and how the direction vectors look like.
> Christian
```