A multi-agent System Approach for Featuredriven Generalization of isobathymetric Line - Advances in Cartography and GIScience - page 487

AgeQt ActiRQs DefiQitiRQ

Feature ageQt SeOective RPissiRQ RePRve a feature

EQOargePeQt EQOarge a feature

ReductiRQ ShriQN a feature

AggregatiRQ 0erge twR features

/iQe ageQt EQOargePeQt EQOarge aQ isRbath Rr part Rf aQ isRbath

SPRRthiQg SPRRth isRbath

ReductiRQ ShriQN a isRbath

AggregatiRQ 0erge twR isRbaths iQtR RQe

SeOective RPissiRQ RePRve aQ isRbath

SegPeQt deOetiRQ DeOete a OiQe segPeQt frRP aQ isRbath

Table 1 - Actions for agent

4.2.2. Constraints of an agent

This part will introduce the constraints used in the system for different levels
of agent. The constraints are generally divided into four types resuming the
constraints presented in section 2: legibility constraints, safety constraint,
shape preservation constraints and structural constraints.

The most important constraint is the safety constraint which applies to all
operations of both features and lines. The depth of any point of a feature
cannot be greater than its original depth and a line can only be moved
toward greater depth.

EQOargePeQt Feature is a peaN

ReductiRQ Feature is a pit

SeOective RPissiR Feature is a pit

AggregatiRQ Features tR aggregate are peaNs

Table 2: Safety constraints on line

The legibility constraint is determined by the minimum distance between
two lines and by the area of closed isobaths. If the value is smaller than the
tolerance, there is a conflict and agents will choose available actions. The
constraints of each type of agent are shown in table 3 .