From: Walter Roberson on
Joseph Mathilde wrote:
>
>> Those objects you mention: are you plotting them as a series of lines
>> yourself, or are you using plot markers? plot markers do not enlarge
>> as you zoom, not unless you use a zoom post function and change the
>> marker size to match the zoom level.

> I use plot markers and it's this plot markers which reduce when I zoom
> on an area.
> Sorry but I don't understand your last comment. Can you explain it? Thanks.

See the description of ActionPostCallback in
http://www.mathworks.com/access/helpdesk/help/techdoc/ref/zoom.html