Geoscience Reference
In-Depth Information
3.1.1 Data selection
3.1.1.1 Lambert graticule
Users want data selection to be relevant according to their activity. All
groups said that the Lambert graticule was useless and impends easy and
quick reading (cf.
figure 1
- “graticule” line). Therefore it has been re-
moved. Since we think it may be useful, within the framework of map
design on the internet, we propose to add it easily and quickly.
3.1.1.2 Points of interest
As shown in the table of
figure 2
, all trekkers groups need touristic and
practical information but at the same time they did not want too dense
maps. Indeed, some unnecessary information has been removed for all
trekkers like riding centres, golf courses, tennis...
Moreover, the relevant touristic information has been visually associated
using the same colour for all point symbols. The purple has been used in
order to differentiate this touristic theme regarding all the other themes.
Both mechanisms of visual association and differentiation are described in
(Bertin 1967).
3.1.1.3 Bicycle paths
Bicycle paths can be used by recreational trekkers, road cyclists and cross-
country bikers (to reach the starting point of their trail). But, bicycle paths
are only an additional infrastructure, they are not specific trails. Thus, they
have been symbolised with the same colour as the points of interest, as ad-
ditional information, in order to be associated with them (cf. Bertin 1967).
An exception has been done for walking trekkers. Indeed, they never use
bicycle paths. So, this unnecessary infrastructure has been removed for
them.
