ragg truncates lines with more than ~117,000 coordinates

[paleolimbot]

From some experimenting, I think the exact number is between 117000 and 118000 (thanks to @richardsc for the motivating example!).

set.seed(123)
N <- 1e6
t <- seq_len(N)
x <- rnorm(t) + sin(2*pi*seq(0, 86400, length.out=N)/(12.4*3600))

png("file-png.png")
plot(t, x, type = "l")
dev.off()
#> quartz_off_screen 
#>                 2

grid::grid.newpage()
grid::grid.raster(png::readPNG("file-png.png"))

ragg::agg_png("file-ragg.png")
plot(t, x, type = "l")
dev.off()
#> quartz_off_screen 
#>                 2

grid::grid.newpage()
grid::grid.raster(png::readPNG("file-ragg.png"))

^{Created on 2021-04-24 by the reprex package (v0.3.0)}

[thomasp85]

Thanks for the reprex - I see this as well. I'll try to figure out where the storage cap is encoded internally in AGG and see if there is anything to do about it