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flesh out oscilloscope documentation

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This commit is contained in:
Raphaël Forment
2023-10-23 00:05:55 +02:00
parent 70b44cbd29
commit 3900f5eef5
2 changed files with 31 additions and 2 deletions
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12
src/AudioVisualisation.ts
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@ -172,7 +172,6 @@ export const runOscilloscope = (
// Drawing logic varies based on orientation and 3D setting
if (app.osc.is3D) {
// For demonstration, assume dataArray alternates between left and right channel
for (let i = 0; i < dataArray.length; i += 2) {
const x = (dataArray[i] * WIDTH * app.osc.size) / 2 + WIDTH / 4;
const y = (dataArray[i + 1] * HEIGHT * app.osc.size) / 2 + HEIGHT / 4;
@ -190,7 +189,16 @@ export const runOscilloscope = (
}
canvasCtx.lineTo(WIDTH, yOffset);
} else {
// Vertical drawing logic
let y = 0;
const sliceHeight = (HEIGHT * 1.0) / dataArray.length;
const xOffset = WIDTH / 4; // Adjust this to move the oscilloscope to the side
for (let i = 0; i < dataArray.length; i++) {
const v = dataArray[i] * 0.5 * WIDTH * app.osc.size;
const x = v + xOffset;
i === 0 ? canvasCtx.moveTo(x, y) : canvasCtx.lineTo(x, y);
y += sliceHeight;
}
canvasCtx.lineTo(xOffset, HEIGHT);
}
canvasCtx.stroke();