R/plot.R
plot.qr_code.Rd
Plot the QR code This function plots to QR code to the open device.
the qr_code
object
Define the colours.
The first element refers to FALSE
and the second TRUE
.
Defaults to c("white", "black")
.
currently ignored
currently ignored
opencv::ocv_qr_detect()
for reading QR codes.
Other qr:
coordinates()
,
generate_svg()
,
print.qr_code()
,
qr_code()
,
qr_event()
,
qr_wifi()
Other qr:
coordinates()
,
generate_svg()
,
print.qr_code()
,
qr_code()
,
qr_event()
,
qr_wifi()
qr <- qr_code("HELLO WORLD")
plot(qr)
# Test the QR code with the opencv package
if (requireNamespace("opencv")) {
png("test.png")
plot(qr)
dev.off()
opencv::ocv_qr_detect(opencv::ocv_read('test.png'))
unlink("test.png")
}
#> Loading required namespace: opencv