Polylines appear "broken"

[Tyler-Keith-Thompson]

As seen in the attached image polylines are not really straight. I've just got black lines with a stroke of 0.3 (have also tried stroke width of 1 and 3). In all cases lines appear broken. It's worth mentioning I have several hundred lines shown, but it's still unclear to my why they're not just straight.

Haven't done anything special, no custom tile server. Map is saved as a png with default options, but even setting the compression level to 0 yields a similar result

Running on macOS catalina
node v14.4.0
staticmaps ^1.4.1

[StephanGeorg]

Hi @Tyler-Keith-Thompson

Thanks for the hint.

The effect you're describing is called Anti-Aliasing. I need to investigate if it could be easily implemented into the used components.

[StephanGeorg]

lovell/sharp#1401