weed tolerance

The minimum allowable distance between any two vertices along an arc. Weed tolerance is a parameter that can be set before adding arc features. When adding new arcs, if an input vertex is within the weed distance of the last vertex, it is disregarded. When weeding existing arcs, it is the tolerance used by the Douglas-Peucker algorithm. Nodes are always retained. The proximity of vertices on one arc to vertices on another arc within the tolerance does not cause them to be weeded; this is controlled by the proximal tolerance.