add_background_gradient: Add background color radial gradients

In wjschne/spiro: Make Animated Spirographs

Description

Add background color radial gradients

Usage

add_background_gradient(
  input,
  colors = c("white", "black"),
  stops = seq(0, 1, length.out = length(colors)),
  center_x = 0.5,
  center_y = 0.5,
  focus_x = 0.5,
  focus_y = 0.5,
  radius = sqrt(2),
  rounding = 0,
  openfile = TRUE,
  output = input
)

Arguments

input	File name of .svg file to input
colors	Vector of gradient colors
stops	Vector of stops for gradient colors. Ranges from 0 to 1.
center_x	x-coordinate for center of gradient. Number between 0 and 1.
center_y	y-coordinate for center of gradient. Number between 0 and 1.
focus_x	x-coordinate for focus of gradient. Number between 0 and 1.
focus_y	y-coordinate for focus of gradient. Number between 0 and 1.
radius	Radius of radial gradient. The default is the square root of 2 so that the gradient extends to the corners of the square. If you want it to extend to the edges, set it to 1.
rounding	Rounding of background rectangle's corners. The default is 0 (no rounding). A rounding value of 1 creates a circle. If rounding is a vector of 2 values, the x and y rounding parameters are set separately.
openfile	Open file in default program for .svg format. Defaults to FALSE.
output	File name of .svg file to output. Default is to overwrite the input file.

Value

output name

Examples

library(spiro)
spiro(
   fixed_radius = 3,
   cycling_radius = 1,
   file = "add_background_gradient.svg"
   ) %>%
   add_background_gradient(color = c("black","white"))

wjschne/spiro documentation built on Dec. 16, 2020, 6:48 p.m.