CTFS.maps {CTFS} | R Documentation

## Making Maps of Tree Positions, Topography and Area Characteristics

### Description

Functions that draw (and save) maps of tree location, topography, and area characteristics. Trees locations can be represented by symbol sized relative to DBH. Area characteristics include habitat types. Any characteristics that can be expressed as a coded variable for a given area or sized quadrate can be mapped. All three of these types of maps (individual tree, topography and area characteristics) can be superimposed. Maps can be saved in a variety of formats and generated for any subset of the dataset. These functions can be used to create the maps for each species in the site stand tables.

### Details

LIST OF FUNCTIONS FOR DRAWING MAPS

`map` | Draws a map of the location of each tree of given species, more than one can be plotted. Elevation contours can be included
`maptopo` | Draws a map of elevation contours
`map1species` | Draws a map of a single species. This is called by `map`.

WHAT MAPS CAN BE DRAWN

Elevation data has been either measured or kriged to 5 x 5 m at each site. A contour map can be drawn at this scale or larger. The elevation data must be converted to a matrix and only the matrix is used in `map`. See `bcitopo.info` for further information on how to make the matrix from the measured elevation data.

Any number of species can be plotted. The default list of colours works best on 3 or 4 species. If plotting more than that then a colour scheme such as `rainbow` or `terrain.colors` should be used. Shades of gray can also be used.

The `census.spp` argument can be constructed of any interesting group of trees and/or species as long as the file is a list and `spname` are the names of the tree census data in the list. Each name is taken as a color (or shade of gray) for plotting.

### Author(s)

Pamela Hall

### See Also

`CTFS.diversity`

[Package CTFS version 1.00 Index]