samplePoints: sample Points along the shoreline

In essatech/MNAI.CPBT: Municipal Natural Assets Initiative - Coastal Protection Benefit Toolbox

sample Points along the shoreline

Description

Sample points along the coastline at specified intervals.

Usage

samplePoints(
  Coastline = NA,
  ShorelinePointDist = 200,
  BufferDist = 300,
  RadLineDist = 3
)

Arguments

Coastline	Coastline LINESTRING of class sf and data.frame.
ShorelinePointDist	Numeric. Spacing between cross-shore profile lines (meters). Note that it is recommended to keep this number as large as possible for your area of interest to speed up processing time.
BufferDist	Numeric. Buffer search distance (meters) used to identify the perpendicular angle of each cross-shore profile line from the coastline.
RadLineDist	Numeric. Radial line distance (kilometers) of the cross-shore profiles. This value determines how for offshore (and onshore) the cross-shore profiles should extend (recommended values are 1 - 3 km).

Value

A list object of shoreline points and cross-shore profile lines along the coastline.

Examples

## Not run: 
data(Coastline)
shoreline_points <- samplePoints(
  Coastline = Coastline,
  ShorelinePointDist = 150, # where to sample points on shoreline
  BufferDist = 300.0, # Buffer distance in meters for vertical line
  RadLineDist = 3.0 # Line dist in km
)
# Coastline
plot(sf::st_geometry(Coastline))
# Shoreline points
plot(sf::st_geometry(shoreline_points[[1]]), add=TRUE)
# Cross-shore profiles
plot(sf::st_geometry(shoreline_points[[2]]), add=TRUE)

## End(Not run)

essatech/MNAI.CPBT documentation built on July 1, 2023, 12:34 p.m.