Vertical Reference Line
Vertical Reference Line
Add a vertical reference line at value on the x-axis.
Usage
from dataviz_mojo.plot import Plot, save
def main() raises:
var x: List[Float64] = [1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0]
var latency: List[Float64] = [42.0, 48.0, 45.0, 61.0, 55.0, 58.0, 70.0, 63.0]
var plot = (
Plot()
.mark_line()
.encode(x=x, y=latency)
.labels(title="Response Time (ms)", subtitle="With a launch marker")
.annotate_vline(4.0, label="launch")
)
save(plot, "docs/src/examples/out_annotate_vline.svg")Args:
value: The x-value to draw the line at. Outside the mark’s (padded) x-domain, draws nothing.label: Drawn near the line when non-empty; left empty (the default), the line draws with no label.