Porphyroblast inclusion-trail orientation data: eppure non son girate!

Orientation, simplicity, and inclusion test for planar polygons

Closure: Every segment must be delimited by exactly two vertices, and every vertex must be at the intersection of exactly two segments. (Fig. la) No self-intersection: Any two segments can intersect only if they are adjacent, in this case the intersection point is the shared vertex (Fig. lb). Orientation: Every segment must have a direction, and the directions of all the segments must be consis...

Le Laboratoire de Lague: Son role et son expansion

The Lep Trail to Non-perturbative Qcd∗

When giving a summary talk, one always faces a difficult choice. Either she makes a very personal selection of what to present, and integrates it with more material, so as to produce a coherent presentation (and NOT give a summary at all!), or she sticks to some sort of accountant-like report of the various parallel-session presentations (and she ends up with a possibly dull talk). I find the f...

Inclusion of C&E data

The landscape of European PGR documentation is a complex one, with systems at the institutional level, National level and European level. They duplicate each others’ data trying to serve the intended users of that information optimally. The combination of passport data from different sources into Central Crop Databases (CCDBs), National Inventories and eventually EURISCO has proven relatively e...

Trail Network Production using GPS Data

The production of accurate, digital trail representations is a necessary component of map making and trail user simulation. Typically, land managers, recreationalists and those who study trail use are interested not in a single trail but in an area which contains a complex network of trails and roads. GPS receivers facilitate the capture of accurate trail and road data. When used to extract a s...