assign.by.size: Assign categories to features based on size & shape

In ClairBee/AS.preprocessing: ArchStats: pre-processing map data for angle extraction

Description

For each feature, get the ratio of the longest to shortest bounding edge. Small features with a ratio close to 1 are set as post-holes; slightly larger as annotations; the largest as linear features.

Usage

assign.by.size(site, lower = 3, mid = 50, upper = 100, ratio = 0.8,
  density = 0.2, plot = T)

Arguments

site	Feature set list, containing a raster of all features, and a matrix assigning each feature to a particular type.
lower	Cell count threshold below which a feature is classed as noise.
mid	Cell count threshold below which a feature is classed as a post-hole.
upper	Cell count threshold above which a feature is classed as a linear feature of the map.
ratio	Ratio (of longest to shortest edge) above which

Value

New feature set list containing the original raster of numbered features and a matrix of newly assigned feature types. Also plots the new feature types.

Examples

assign.by.size(genlis)

ClairBee/AS.preprocessing documentation built on May 6, 2019, 11:50 a.m.