clip_plots: clip plots or polygons form lidar
In jstrunk001/lasR: Simple lidar reading, processing, viewing

Description Usage Arguments Details Value Author(s) See Also Examples

clip plots or polygons form lidar - requires that one first make a project using lasR_project which includes both lidar and dtms

clip_plots(idxyd = NA, idxy = NA, plot_polys = NA,
  id_field_plots = "plot", lasR_project = NA,
  lasR_project_polys = NA, plot_tile_intersect = NA, dir_out = NA,
  height = F, do_plot = F, return = F, n_core = 6, dir_dtm = NA,
  dir_las = NA, skip_existing = T, fix_dsm_bug = F)

`idxyd`	dataframe with point id, x and y coordinates, and circle diameter
`idxy`	(optional) dataframe with polygon vertices (x,y) organized by point id
`plot_polys`	(optional) shapefile path, or sp object with plot boundaries
`id_field_plots`	(optional) in the event that a polygon is provided
`lasR_project`	path to spatial polygons dataframe (intersection between dtm and las tiles)
`lasR_project_polys`	spatial polygons dataframe (intersection between dtm and las tiles)
`plot_tile_intersect`	path to spatial polygons dataframe representing intersection between plots and lasR_project
`dir_out`	where to send clipped plots
`height`	T/F subtract the ground
`do_plot`	T/F make a plot of the intersections
`return`	T/F return intersectiosn
`n_core`	number of cores to use in clipping
`dir_dtm`	in case path to dtms has changed from lasR_project
`dir_las`	in case path to las has changed from lasR_project
`skip_existing`	skip csv files that have been processed already - in case processing was interupted

There are three ways to provide the input shapes to this function - either as a list of plot ids, coordinates and plot diameters (4 column data.frame), as a list of vertices organized by plot_id (3 column data.frame), or as a polygon shapefile (path to shapefile) inwich case the plot id field must be specified "id_field_plots".

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