automapPts: Compares Images To Find Bounding Coordinates In Pixils

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

View source: R/automapPts.R

Description

NOT CALLED BY USER. The automapPts function is utilized by makeImap to retrieve the up.left and lower.right pixil coordinates of a desired interactive figure

Usage

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automapPts(Splot,
           fname.root="Splot",
           boundFileName="SplotDot",
           dir="./",
           automap.method="mode")

Arguments

Splot

An object of the class Splot

fname.root

Base name of the static version of plots

boundFileName

Base name of the version of plots with the given figure's additional bounding points displayed

dir

directory path to where files were created

automap.method

Method to detect upper and lower bounds. Current options are "mode" or "median"

Details

This function retrieves the up.left and lower.right pixil coordinates of a desired interactive figure. The function assumes that a 'clean' image without additional bounding points and a 'bounding' image that has additional bounding points (see addBounding) are created. It converts these images to .tif files and uses the rtiff package readTiff to compare the images for differences, thus picking up the additional points.

Value

A list with up.left and low.right bounding coordinates in pixils or NA if could not map correctly

Note

NOT CALLED BY USER. INTERNAL HELPER FUNCTION

utilizes readTiff from rtiff library

Author(s)

Lori A.Shepherd, Daniel P.Gaile

References

Eric Kort (2006). rtiff: A tiff reader for R.. R package version 1.1.

See Also

makeImap, rtiff, getBounds, mapMethod

Examples

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# not called by user

lshep/sendplot documentation built on Nov. 18, 2017, 5:10 p.m.