I think there's a bug in MASON's handling of trails for grids.  But it's taking me a while to nail it down.  Works fine in flockers but not in HeatBugsWithUI.  I'll look at it some more.

Sean


On Sep 9, 2015, at 2:44 PM, Stewart Aitken <[log in to unmask]> wrote:

> The manual suggests looking at flockers for the trail. I am not using MASON 19 but rather MASON 18 and I have some code that produces trails.
> Regarding TrailedPortrayal2D how have you configured the trails to be shown manual19 suggests there are four different ways of doing this?
> Have you tried selecting one of them to see if a trails is made.
> 
> On 9 September 2015 at 17:22, Ernesto Carrella <[log in to unmask]> wrote:
> Wanted to have pretty trails following my portrayals. 
> 
> Tried to code in the TrailedPortrayal2D in my model, nothing ever shows.
> 
> Then I tried just uncommenting HeatBugsWithUI as suggested by the javadoc. Still nothing, no trails ever show up.
> 
> Is anybody using TrailedPortrayal2D and can assure me it works and the problem is on my end?
> 
> Ernesto
> 
> 
> 
> 
> -- 
> 
> 
> 
> EMAIL DISCLAIMER http://www.york.ac.uk/docs/disclaimer/email.htm