Martin Budaj wrote, On 08/22/09 19:11: > On Fri, Aug 21, 2009 at 8:53 PM, Thomas Holder<thomas at thomas-holder.de> wrote: >> how to redefine the altitude point symbol? Defining a metapost p_altitude >> macro within layout/endlayout has no effect. > > All point labels are displayed using p_label; altitude uses mode=1. thanks Martin! Thomas