uavRst (version 0.5-2)

poly_metrics: calculate morphometric features of polygons.

Description

calculate morphometric features of polygons. Calculate some crown related metrics, returns the metrics as a spatialpointdataframe/spatialpolygondataframe

Usage

poly_metrics(crownarea, funNames = c("length", "elongation",
  "eccentricityboundingbox", "solidity", "eccentricityeigen", "calliper",
  "rectangularity", "circularityharalick", "convexity"))

Arguments

crownarea

sp* spatialpolygon object

funNames

character. names of morphometrics to be calculated available are ("length","elongation","eccentricityboundingbox","solidity","eccentricityeigen", "calliper","rectangularity","circularityharalick","convexity")

See Also

Momocs Paul Rosin

Examples

# NOT RUN {
# }
# NOT RUN {
# required packages
require(uavRst)
require(mapview)

# get the rgb image, chm and training data
utils::download.file("https://github.com/gisma/gismaData/raw/master/uavRst/data/tutorial_data.zip",
                      paste0(tempdir(),"tutorial_data.zip"))
unzip(zipfile = paste0(tempdir(),"tutorial_data.zip"), exdir = tempdir())
crown<-raster::shapefile(paste0(tempdir(),"rgb_3-3_train2.shp"))
## calculate polygon morpho metrics
polymetric <- poly_metrics(crown)

# visualize it
mapview::mapview(polymetric)
##+
# }