pchIcons: Create icon(s) to be used to represent points on a map...

In USEPA/TADA: EPA TADA (Tools for Automated Data Analysis) R Package

Create icon(s) to be used to represent points on a map feature layer pchIcons is used within TADA_addPoints

Description

Uses the different plotting symbols available in R to create PNG files that can be used as markers on a map feature layer.

Usage

pchIcons(
  pch = 1,
  width = 30,
  height = 30,
  bg = "transparent",
  col = "black",
  lwd = NULL
)

Arguments

pch	Plot character code; either a single number or a vector of multiple numbers. Possible values available at https://www.geeksforgeeks.org/r-plot-pch-symbols-different-point-shapes-available-in-r/. Defaults to 1 (an open circle).
width	Width of the plot character. Defaults to 30 pixels.
height	Height of the plot character. Defaults to 30 pixels.
bg	Background color of the plot character Defaults to transparent.
col	Color(s) of the plot character(s). Defaults to black.
lwd	Line width. Optional, defaults to NULL.

Value

Path(s) to PNG file(s) in a temp folder on user's computer.

Examples

## Not run: 
# Create three PNG files, a red circle, blue triangle, and yellow "X", each on a green background.
pchIcons(c(1, 2, 4), 40, 40, "green", c("red", "blue", "yellow"))

## End(Not run)

USEPA/TADA documentation built on April 12, 2025, 1:47 p.m.