Takes elevation data and calculates the data needed for plotting ridgelines
by sampling the elevation at regular y-intervals. You will only need this
function if you want to create your own custom plots from the ground up.
Usage
calculate_ridgelines(elevation = NULL, n_lines = 30)
Arguments
- elevation
A raster object containing elevation data, or NULL to use last elevation
- n_lines
Number of ridgelines to calculate
Value
A data frame containing the ridgeline data with columns x, y, elevation, and group
