maptopo {CTFS}R Documentation

Plot a Contour Map of Topography of a CTFS Plot

Description

Draws a contour plot (default to 5 m intervals) for a CTFS Plot. This function can be run independently or in order to add a contour plot to a plot of the tree location of a species. The defaults provide a “nice” plot.

Usage

maptopo(elevmat, plotdim = c(1000, 500), add = FALSE, export = "no", 
        interval = 0, maintitle = "Topographic Contours", 
        ht = 6, wd = 9, plotside = 4.5, filename = "maptopo")

Arguments

elevmat matrix of elevation data, preferably at 5 x 5 m scale, usually the matrix component of the list bcitopo.info
plotdim vector of 2 numbers, maximum x, y dimensions of plot in m
add logical, TRUE = add contour plot to tree plot, only for use when NOT run independently, FALSE = for making contour plot only
export character, indicating whether to plot to window or save as file. Possible values are: “no”, “bmp”, “jpg”, “emf”, “pdf
interval contour line intervals
maintitle character string, main title for plot
ht height of graphics window, in inches
wd width of graphics window, in inches
plotside size of plot within the graphics window
filename default filename for export

Details

This function can be run independently to just produce a contour plot or can be called from map to add a contour plot to a plot of tree location for a species.

Make sure that elevmat is a matrix. In most cases this would be the matrix component of the list bcitopo.info.

Value

If export=no” then a map is plotted in a window and all information requested in plotted in the window. If the user choses to export the file, then the same plot on the screen will be saved in a file in the working directory in the format of the users choice. See above for file name creation.

Author(s)

Rick Condit and Pamela Hall

See Also

map, bcitopo.info, contour

Examples

## Not run: 
data(bcitopo.info)

# minimum needed
maptopo(bcitopo.info$mat)

# for export just add:
maptopo(bcitopo.info$mat,export="pdf")
## End(Not run)

[Package CTFS version 1.00 Index]