mirror of
https://github.com/lynchmarkHQ/lynchmark.com.git
synced 2026-10-18 01:37:54 +00:00
Docs: Update benchmark results
This commit is contained in:
@@ -0,0 +1,28 @@
|
||||
export const createStreamVisualizer = async (stream, { maxPoints, alpha, width, height, yDomain }) => {
|
||||
const { scaleLinear, scaleTime, line } = await import('https://esm.sh/d3@7');
|
||||
const data = [];
|
||||
let ema;
|
||||
|
||||
for await (const { timestamp, value } of stream) {
|
||||
ema = ema === undefined ? value : alpha * value + (1 - alpha) * ema;
|
||||
data.push({ timestamp, value, ema });
|
||||
if (data.length > maxPoints) data.shift();
|
||||
}
|
||||
|
||||
if (!data.length) return { data, path: '' };
|
||||
|
||||
const x = scaleTime()
|
||||
.domain([data[0].timestamp, data.at(-1).timestamp])
|
||||
.range([0, width]);
|
||||
|
||||
const y = scaleLinear()
|
||||
.domain(yDomain)
|
||||
.range([height, 0]);
|
||||
|
||||
const path = line()
|
||||
.x(d => x(d.timestamp))
|
||||
.y(d => y(d.ema))(data);
|
||||
|
||||
return { data, path };
|
||||
};
|
||||
export default createStreamVisualizer;
|
||||
Reference in New Issue
Block a user